Form 2025 HANDBOOK OF NARROW-GAUGE EQUIPMENT (60-CENTIMETER) FOR 12-INCH MORTAR RAILWAY MOUNT MODEL 1918 (FOURTEEN PLATES) APRIL 23, 1919 HE I0<5s; •U-5'.) WASHINGTON GOVERNMENT PRINTING OFFICE 1919 Form 20*25 HANDBOOK OF NARROW-GAUGE EQUIPMENT (60-CENTIMETER) FOR 12-INCH MORTAR RAILWAY MOUNT MODEL 1918 (FOURTEEN PLATES) APRIL 23, 1919 WASHINGTON GOVERNMENT PRINTING OFFICE 1919 i: War Department, Office of the Chief of Ordnance, Washington, April 23, 1919. This Manual is published for the information and guidance of the Army of the United States. By order of the Secretary of War: W. S. Peirce, Brigadier General, Ordnance Department, United States Army, Acting Chief of Ordnance. (3) » TABLE OF CONTENTS. I'art I.—Railway Gun Car Equipment for 60-Centimeter Track. Pagt Section A. General description * 9 Section B. The mortar transport car 10 («) Description 10 (b) To remove truck from car 11 (c) To disassemble trucks 12 ( Part II.—60-<"entimeteu Gauge Armament Train. Page Section A. Shell car 25 («) Description _ 25 (h) Method of handling sliells 2<5 (c) To remove trucks from car 26 (d) To disassemble truck « 27 (e) To assemble truck ' 27 (f) To place trucks under car 27 (gO To pack journal box 27 (7i) To take up shoe wear 28 (i) To replace brake shoes 28 Section It. Powder car 28 (a) Description 28 (b) Equipment 28 (c) Instructions for disassembling and assembling trucks 28 Section (J. Supply ear 29 (а) Description 29 (б) Equipment 29 (c) Instructions for disassembling and assembling trucks 29 Part III.—Equipment for 60-Centimeter Track 60-Centimeter Gauge Arma¬ ment Train. LIST OF PLATES. I. Suggested track arrangement for placing cars from broad to narrow gauge roads. II. Suggested track arrangement for placing cars from broad to narrow gauge roads. III. Narrow-gauge transport car, model of 1918. for 12-ineli mortars, car assem¬ bly. IV. Narrow-gauge transport car, model of 1918. for 12-inch mortars, method of assembling mortar. V. Narrow-gauge transport car, model of 1918. for 12-incli mortars, loading and unloading rig. VI. Narrow-gauge transport car. for 12-inch mortar, method of carrying on standard-gauge supply car. VII. Narrow-gauge transport car, model of 1918, for 12-inch mortars, arrange¬ ment of ways on carriage. VIII. 12-wheel narrow-gauge truck, general arrangements. IX. 12-wheel narrow-gauge truck, method of carrying on standard-gauge supply car. X. Shell car, narrow gauge, for railway batteries, model of 1918, general ar¬ rangement. XI. 60-centimeter gauge, armament train truck. XII. Shell car, narrow gauge, for railway batteries, model of 1918, ammunition arrangement, for 12-inch mortar batteries. XIII. Powder car, narrow gauge, for railway batteries, model of 1918, general arrangement. XIV. Supply car, narrow gauge, for railway batteries, model of 1918, general arrangement. Part I. 60-CENTIMETER GAUGE EQUIPMENT. Section A.—GENERAL DESCRIPTION. (Refer to Plates I to XIV, inclusive.) In certain cases the railway mortar car will have to be transported over 60-centimeter gauge (i. e., 23.625-inch gauge) track to the firing position. In these cases it will be necessary to remove the standard gauge trucks from under the railway mortar car and replace them with 12-wheel 60-centimeter gauge trucks. The mortar will also have to be dismounted from the carriage and transported on a 60- centimeter gauge mortar transport car as the railway mortar car would be " top heavy " with the mortar in place. Plates I and II give suggested arrangements of cars on standard and 60-centimeter gauge tracks in order to remove the mortar trans¬ port car from the supply car; to remove the mortar from the car¬ riage to the mortar transport car and also to remove the standard gauge trucks from the railway mortar car and replace them with 60-centimeter gauge trucks. Inclined runways, which will be de¬ scribed later, are used to remove the mortar transport car from the supply car and also to remove the mortar from the carriage. To give a better foundation for the H beams of the ground plat¬ form than the 60-centimeter gauge metal ties can afford, large ties are placed under the rails at the firing position, the small metal ties resting on these larger ones. Additional blocks are likewise placed under the jack blocking when jacking the car, in order that the weight from the jacks may be transmitted directly to the ground. Before bringing the railway mortar car up to the firing position, the section of track which will come under the drop part of car will be removed. A pit will be dug about 9 feet wide, 20 feet long, and of a depth below bottom of rails equal to combined depth of small and large ties. The large ties will be laid in this pit so that the small ties will rest on top of them when relaid. The track and ground plat¬ form will then be placed on these large ties and the outriggers set in a similar manner as for standard gauge and equipment. (See Pamph¬ let No. 2024, Handbook of Railway Mortar Car, Model 1918. MI and Mil. See Pt. I, Sec. II. and PI. III.) 116759—19 2 (9) 10 Section B.—THE MORTAR-TRANSPORT CAR. (0) DESCRIPTION. ( Refer to Plate III.) For list of parts with their piece marks and the material of which they are made, see page HO. The frame or body is of built-up construe tion. being composed of plates, angles, and channels, and is carried bv two (i-wlieel narrow- gauge trucks. It has two fish-belly girder sills, approximately HO feet long and spaced Hf inches apart, reinforced and connected by two cross- ties near the center, a bolster near each end and end sill at each end. Two channels are interposed between end sills for attaching the draft gears and supporting the hand brake wheel shaft. Standard M. C. B. center plates are attached to the bottom of each bolster, and side bearings are riveted to each end of bolsters, spaced 41.75 inches between centers. The top flanges of the side sills form runways for the wheels of the mortar cradle trucks when mounting the mortar on the car. The tops of sills are depressed at center, being flat, a distance of approximately 67 inches and tapered upward toward each end. Hinge connections are provided at each end of the sills for attach¬ ing runways for transferring mortar from the mortar carriage. These connections also provide means for attaching cables for loading the transport car onto a standard gauge supply car. The draft gear and couplers are the same as used on 60-centimeter gauge cars built for the United States Government. Two castings fastened to the draft sill channels hold the draft spring and act as guides for the spring seat plate. A rod, having a nut with split pin resting against the inside spring plate, extends through the center of the spring coil and is fastened to the eye of the drawbar by a pin. The other end of the drawbar terminates in a flanged butting end having a socket in which the coupler link fits. Pins with curved latches to prevent them from falling out of the holes are used to hold the coupler link to the drawbars. The drawbar is free to swing hori¬ zontally on the inner connection pin-and is guided by top and bottom bars fastened to the side sills. The six-wheel trucks are pedestal type and consist essentially of three sets of chilled cast-iron wheels, with axles, 3.25 by 5.25 inch journals, journal bearings, top equalizers mounted in side frames, springs and seats, and a cast-steel bolster or transom. These trucks are duplicates of the forward truck of the 12-wheel truck shown on Plate V. The wheels are 15.75 inches in diameter, with the flanges of the middle set omitted so that the trucks will go around curved with¬ out bending. The side frames are built of plates and angles tied together by the bolster or transom with a 0.375-inch cover plate on 11 top and with bars at the ends. Channels riveted between the side plates of each side frame guide the journal boxes and have a tie- plate bolted at the lower end. Two spring coils seated in castings fastened to the top of each side frame distribute one-half of the load coming on the side frames to the equalizer beams under them. The ends of these beams rest on adjacent journal boxes, the springs being so arranged that the load resting on each journal box will be one-third of the weight coming on the side frames. The transoms of the truck are equipped with roller side bearings and with a center plate. Each truck is equipped with hand brakes, the wheel and ratchet being supported at diagonally opposite ends of the car by brackets bolted to the side channels. The brake-wheel shafts, about which the brake chain is wound, extends to the draft sill. Brake shoes are hung from the side frames, and the brake beams and levers are so arranged that the force from the brake chain will be equally distributed at the six wheels. (b) TO REMOVE TRUCKS FROM CAR. Four men required. Tools needed: 4 auxiliary jacks. 1 crowbar, 1243A. 1 car pusher, 4951D. 1 pinch bar. Blocking. 2 boards, 2 inches thick and about 3 feet long. (1) .Shove car along with car pusher until the two end cross chan¬ nels are directly over rail ties or some other firm support, placing aux diary jacks on these supports just inside of rails. Raise the jacks (see Pt. I. Sec. G. Pamphlet No. 2024. and Pis. XI and XII) until the tops bear firmly on the end cross channels and raise car with jacks about 6 or T inches. (2) Lift king-pin from center plate hole, usuing pinch bar to start same if necessary, and disconnect brake chain from brake lever. Replace pin in hole in lever and wind chain on brake shaft. (3) Shove trucks along until they are under draft gear castings and place short pieces of board on their center plates. Lower jacks until the draft gear castings rest on the trucks and remove jacks, lowering them as far as they will go. (4) Place board about 2 inches thick across rails directly behind trucks and place jacks upon them under the side sill channels. Raise jacks until the tops bear firmly against the channels and continue raising until the car is clear of the trucks. (5) Push trucks away and lower car on secure blocking placed under it to support it. 12 (c) 'l'O DISASSEMBLE TRUCKS. Four men required. Tools needed : 1 wrench for 0.375 and 0.5 inch nuts, U153B. 1 wrench for 0.025"and 0.875 inch nuts, TT53E. 1 wrench for 0.75 and 1 inch nuts. 1 7-inch pliers, U47AQ. 1 pinch bar. 1 hammer, U47AM. 4 auxiliary jacks. 4 jack hangers. Blocking. 1 combination book and packing tool. (1) Remove 0.905-inch pin holding chain shackle to truck lever, replacing pin in shackle and winding chain up on brake mast. (2) Remove brake mechanism from truck by (1) removing six 0.625-inch pins with split pins holding brake-beam hangers to brack¬ ets, (2) removing 0.875-inch U bolts with split pins supporting float¬ ing connection from bolster. (3) Disassemble brake mechanism by (1) removing seven 0.905- inch pins with split pins fastening connecting rods to levers and brake beams, (2) removing six 0.625-inch pins with split pins holding brake- beam hangers to brake shoes, and (3) two 0.5 bv 3.125 inch bolts with grip nuts connecting each brake shoe to brake beam. The brake- beam hanger brackets may be removed by unbolting 0.5 by 1.875 inch bolts with grip nuts. (4) Remove four 0.625 by 7-inch through holts with grip nuts and two 0.75-inch by 2-inch countersunk bolts with grip nuts connecting tiebar to each side frame and remove tiebars. (5) Place four auxiliary jacks with hangers on securg blocking and lift side frame and bolster away from wheels, axles, and journal boxes. Shove wheels away and lower side frames and bolster on to secure blocking. (6) Remove six 0.75 by 2.5 inch bolts with grip nuts connecting each spring cap to side frames and remove spring caps, springs, and spring seat from equalizer beams. Turn equalizer beams over on their sides and lift them out of side frames through space between cover plate and end channel spacer. (7) Open journal-box lids and remove packing v ith hook and packing tool. (8) Lift the journal boxes, remove bearings, and pull boxes off axle. Remove dust guards from slots in back of boxes. i;i (<7) TO ASSEMBLE TRUCK. Reverse procedure outlined in (c), taking care that the equalizer beam ends rest on the proper grooves of journal boxes and that the lugs on the bottoms of the spring seats fit into the holes in the equalizer beams. ((') TO I'LACE TRUCKS UNDER CAR. Reverse operations given in (b). ( /) TO DISASSEMBLE BRAKE. Two men required. Tools needed: 1 wrench for 0.75 and 1 inch nuts, U153G. 1 7-inch pliers. U47AQ. 1 hammer. U48F. (1) Turn brake wheel until chain is unwound from shaft, remove cotter pin from shaft and unscrew nut so that brake wheel can be taken off. (2) Remove four 0.75 by 2.625 inch bolts with lock washers hold¬ ing shaft brackets to car channels and remove outside brackets. Take pawl off of inner bracket by unscrewing bolt, remove cotter pin, un¬ screw ratchet wheel from shaft and remove pawl bracket. (3) Take chain off by removing 0.5 by 3.5 inch bolt holding to shaft, and 1.125-inch diameter pin holding it to brake lever. Pull cotter pin out of hole in inside end of shaft and withdraw shaft from hole in channels. ((/) TO DISASSEMBLE DRAFT GEAR COUPLING. Two men required. Tools needed: 1 wrench for 0.625 and 0.785 inch nuts, U153E. 1 wrench for 0.75 and 1 inch nuts, U153G. 1 wrench for 0.375 and 0.5 inch nuts, TI153B. 1 15-inch monkey wrench. U45H. 1 7-inch pliers, U47AQ. 1 hammer. U48F. (1) Remove four 0.785 by 4.5-inch bolts with lock washers which hold coupler, carry iron and top guide to side sill and at the same time withdraw cotter and 1.25 diameter by 5.25-inch pin from con¬ nection of drawbar to spring bolt. Place coupler, carry iron, top guide and drawbar on ground or floor. 14 (2) Withdraw cotter and tighten nut on end of spring bolt so as to give slight compression in springs. Remove four 0.75-inch holts, holding bottom spring plate to draft castings and allow spring plates, spring and spring bolt to drop out of castings. Place them on ground or floor. Unscrew spring bolt nut and withdraw spring and spring plate from bolt. (4) The drawbar coupler pin can be disassembled from drawbar by removing 0.5-inch bolt holding chain and by removing pin with cot¬ ter and washer from drawbar coupler pin. (h) TO ASSEMBLE DRAFT GEAR COUPLINGS. Reverse procedure outlined in ( 1 wrench for O.G27> and O.N77> inch nuts. 1T7)3E. 1 wrench for 0.77) and 1 inch nuts. F17>."»G. 1 17)-inch monkey wrench. I 47> 11. 1 7-inch pliers, P47AQ. 1 hammer, U48F. 1 crowbar. 1243A. 1 car pusher, 497)11). 1 combination hook and packing tool. 1 pinch bar. (1) Place blocking and jacks under end transom and end sill on each side of span bolster. The blocking should he so arranged that the top of it is at least 20 inches below bottom of span bolster and out far enough so that the journal box will not foul the jacks. Raise span bolster with jacks 4 or 7> inches. (2) Withdraw king-pins, using pinch bar to start them, discon¬ nect brake chain from lever by removing pin and cotter. Wind chain up on wheel shaft and replace chain and cotter in lever. (3) Shove 6-wheel trucks in the same direction from under span bolster and lower the latter to secure blocking placed under it. 17 (4) Disassemble brake as outlined in Section B, Division (F). (5) Disassemble draft gear and coupling as outlined in Section B, Division ((J). (6) Disassemble trucks as outlined in Section B, Division (C). {(J) TO ASSEMBLE TRUCK. Reverse procedure given in (<-). (c) TO PACK JOURNAL BOXES, REPLACE JOURNAL BEARINGS, AND TO REMOVE AND REPLACE BRAKE SHOES. (See Section B, Division (?), (y), and (k). Section D.—RIGGING FOR ADAPTING EQUIPMENT FOR TRANSPOR¬ TATION OVER 60-CENTIMETER GAUGE TRACK. (a) DESCRIPTION. (Refer to Plates I, II, III, IV, V, VI, VII, and IX.) For list of parts with their piece marks and the material of which they are made, see page 34. When traveling over standard-gauge roads the mortar transport car (without the mortar) is carried on a supply car equipped with rails, stay rods, and wheel blocks (see PI. VI). To remove it from the supply car the latter is placed on a section of concentric 60-centimeter and standard-gauge track, and the mortar transport car is run down an inclined runway (see PI. VII). This runway is composed of a line of two 12-inch channels, braced together and resting on the 60- centimeter gauge rails at their lower ends and on the stake pockets of the supply car at their upper ends. In between they rest on blocking supported by channels laid across the standard-gauge rails. The car is moved With a car pusher and is prevented from running down the incline too swiftly by a block and tackle attached to the wing plates on the side channels of the transport car and to the drawbar of the supply car or some other convenient stationary object. This same equipment is used to load the transport car on the supply car. Another runway is provided to remove the mortar in its sleigh from the carriage cradle and place it on the. mortar transport car (see PI. III). It consists of two lines of five channels each braced together, which line up with and connect at their lower end to the side channels of the transport car. The section of the runway nearest the breech of the mortar has two 6-inch channels placed between and parallel to the main channels, to which they are bolted, being properly spaced by separators. These 6-inch channels are connected to each other by braces across their ends. They form an auxiliary runway on which the auxiliary mortar truck travels. The section of the runway which extends over the carriage platform is level. A ways support made 110759—19 3 18 up of channels and plates is bolted to the racer of the carriage. To the top of this support the bottom flanges of the runway are bolted after a 0.125-inch shim has been inserted between the support and each flange. On the outrigger beam is placed a platform blocking, and on this the rear end of the carriage platform rests. Two 0.125- inch shims are placed on the carriage platform at this point, one under each flange of the runway. The function of these shims and those on the ways support is to prevent any of the weight of the runway from coming upon the carriage platform except where it is supported by the platform blocking. The platform blocking also forms a bearing for the ways blocking bolted to the underside of the next section of the runway. Another ways blocking bolted to the underside of the runway at the joining of the second and third sections rests on the platform of the mortar car. Between the mortar car and the transport car, at the points where the third and fourth and fourth and fifth sections of the runway connect, two ways supports are placed. These are of different heights hut similar design. Each is a frame made up of a base, placed in a trench underneath the track rails, two struts, with two cross braces, and a beam extending across the top through which passes a tie rod to an evebolt in the base. The other end of the fifth section is connected to the ends of the side sills of the trans¬ port car bv pins. A support is also placed under the stiffening brackets, near the end of the transport car, to prevent the car from tipping when the weight of the mortar comes upon it. Before erecting the runway, if the rear platform of the mortar car is toward the transport car, the loading track must be removed, if the front platform of the mortar car is toward the transport car, the float loading bracket must be removed. The brake mast must also be removed from the platform of the mortar car and the loading tray, crane mast, and folding platforms from the carriage platform. Before hauling the mortar and its sleigh from the carriage cradle the air must be let out of recuperator cylinder, (see Pamphlet Xo. J987, Handbook of 12-inch Railway Mortar Carriage. Model 1918, Pt. II. Sec. C), the plunger pushed back into the cylinder and secured and the pull-rod bracket must be removed from the front sleigh yoke. A mortar-hauling yoke, consisting of two channels, between which a sheave is mounted at each end, is connected to the rear sleigh yoke by two brackets and four book bolts. The auxiliary mortar truck is placed on the auxiliary runway between the channels of the main run¬ way and as near to the breech of the motar as possible. A noose is put around the channels of the mortar-hauling yoke and attached to a five-fall tackle, which, at its other end, is made fast to the safety chains of the mortar car. By this tackle the sleigh, with the mortar in it, is drawn out from the carriage cradle till the rear sleigh yoke is over the auxiliary mortar truck. Wedges are inserted between 19 the sleigh yoke and truck till the weight rests 011 the truck, which is then hauled to the end of the auxiliary runway, where stops prevent it from running off. The cradles of the mortar truck are placed un¬ der the sleigh between and as close to the front and rear yokes as possible and are supported by blocking resting on the auxiliary run¬ way. The wheels of the mortar truck connected by their axles are then placed 011 the main runway and the bearing connections or side frames of the truck are slipped over the ends of the axles. Care must be taken to see that the jack screws in the bearings are screwed down as far as they will go. When correctly placed the jack screws will be directly under holes in the cradle supports. The tie rods between the bearings are then inserted and fastened and the diagonal braces bolted to the bearings. The screws which hold the cradle-support guides to the cradle supports are removed and the guides bolted to the bearings. The jack screws operated by the ratchet handles used for the screw jacks of the car .are raised until they take the weight of the mortar and the sleigh. The auxiliary mortar truck is removed and the blocking which support the mortar-truck cradles. A 0.625 cable by 150 feet long is passed from winch, located on the plat¬ form of the mortar car farthest from the transport car, over a guide sheave mounted in a bracket 011 the left-side frame of the carriage, around the two sheaves of the mortar-hauling yoke to a pin held in a bracket on the right-side frame of the carriage. The tackle is again used to haul the mortar when its truck is on the incline of the runway. It is held in this position till the tackle and noose are removed from the mortar-hauling yoke and then allowed to travel easily down the runway by slowly unwinding the cable from the winch until the truck rests in proper position of the mortar transport car, where it is made fast by stop blocks, as shown on Plate III. (b) TO ERECT CAR RUNWAY. (Refer to Plate V.) For lists of parts with their piece marks and the material of which they are made, see page 38. Six men required. Tools needed: 1 wrench, 0.75 and 1 inch nuts, U153G. 1 wrench, 1.25 and 1.5 nuts, U43BA. 1 pinch bar, 1243A. 1 crowbar, 3370C. 1 sledge, 4951D. 1 car pusher. (1) Place the supply car, with mortar-transport car aboard, on a straight length to concentric standard and 60-centimeter gauge track. 20 (2) Set hand brakes on supply ear. Lay the three lower blocking supports, made up of channels (1ST) and blocks (1 sfT) across the standard-gauge rails, spaced as shown on Plate V. On the channel supports nearest car place three plain blocks (18N) and bevel block (1SS) on top. On the next channel block place two plain blocks (18N) and (1SW) on top. On the last channel block place block (18R). (3) Place channels (ISA) and (1SB) on first two sets of blocks, flanges outward, and rest the clip angles at ends of channels on end stake pockets of car. Fasten them to pockets with bolts, line chan¬ nels ii]), so that they will be directly over narrow-gauge rails, and fasten three sets of cross braces (ISP) between channels with 0.7.") by 1.75 inch bolts. (4) Adjust middle set of blocking until channels bear on only one- half of the top block. Place channels (1811) and (INK) with plain ends between connection plates of first channels and resting on blocks, and with guides at lower ends around rails. Bolt connection plates with four 0.75 by 2.5 inch bolts at each joint and fasten three sets of cross braces (ISP) as before between channels. Adjust intermediate blocking to give a firm support for channels. (c) TO REMOVE MORTAR TRANSPORT CAR FROM SUPPLY CAR. (Refer to Plate V.) Six men required. Tools needed: 1 wrench for 0.75 and 1 inch nuts, 1715411. 1 crowbar, 1244A. 1 pinch bar. 1 sledge hammer, 3370C1. 1 <*ar pusher, 4SI51D. 1 triple block for 1-inch rope with book. 1 double block for 1-inch rope with hook. 400 feet of 1-inch diameter manila rope. 2 strands of 1-inch rope about 10 feet long. (1) Thread 400 feet of 1-inch manila rope through the triple and double blocks. Thread one strand of rope through holes at end of mortar transport car channels away from runway, fasten and hook triple block to it. Make loop of the other strand of rope and place it around drawbar of supply car or some other convenient object and hook double block to it. Pull rope through blocks until tight. (2) Remove 1-inch nut and washer from wheel block nearest run¬ way on supply car. Remove block and replace washer and nut. Un¬ hook stay rods holding transport car in place by unscrewing turn buckles. Release hand brakes. 21 (3) Push car along track on supply car with car pusher. At the same time allow rope to run through blocks freely until car will travel by its own weight down runway and then let rope out gradually. (4) Unfasten loops of rope and remove block and tackle. (d) TO DISASSEMBLE CAE RUNWAY. Reverse procedure outlined in (b). (e) TO ERECT MORTAR RUNWAY. (Refer to Plate IV.) For list of parts with their piece marks and the material of which they are made see page 37. Eight men required. Tools needed: 1 wrench for 0.023 and 0.875 inch nuts, U153E. 2 wrenches for 0.75 and 1 inch nuts, U153G. 2 shovels, 88.19A. 1 sledge hammer, 3370C. 2 pinch bars. 1 crowbar. 1243 Al. 1 car pusher. 4951D. Carriage crane. 2 strands of 1-inch rope, about 15 feet long, for slings. 1 tie about 4 feet long. 2 ties about 13 inches long. (1) Place the railway mortar car and mortar transport car on a straight length of concentric standard and 60-centimeter gauge track. If convenient, it will be best to arrange the cars so that the mortar can be removed from the front end of the railway mortar car, in order that the loading track can be left in place. When at the firing posi¬ tion the ground platform and outriggers should be placed before erecting the runway. (See Pamphlet 2024, Handbook of Railway Mortar Car. 1018, All and Mil, Pt. I, Sees. II and I.) (2) Remove outrigger and ground platform material, float loading brackets (if runway is to pass over front platform of car), chests, and, if necessary, loading track (if runway is to pass over rear platform), from car platform. Place the winch on car platform opposite the end where the runway is to he erected. Set hand brakes on railway mortar car if it is not set up on ground platform. (3) Remove the folding platform from the mortar carriage and assemble and bolt to the racer the ways support. Bolt platform block¬ ing to outrigger beam. (4) Place channels of the first section after runway with front ends resting on shims placed on top of ways support and rear ends on shims 22 at rear of carriage platform. Bolt to top piece and braces of ways support. Place channels of auxiliary runway between main channels and bolt fast, spacing with separators. Bolt braces across ends of auxiliary runway and across front end of main runway. (5) Place rear ends of channels of the second section on ways blocking laid across car platform. Place narrow blocking on plat¬ form blocking on outrigger beam and bolt flanges of channels to it, being sure that channels line up with the first section. Insert and bolt two ways braces. (G) Dig trenches for bases of ways support frames as indicated on Plate XII, so located that the frames will come under connec¬ tion points of sections three and four and four and five. Place bases in trenches with eyebolts extending upward and assemble struts and toppieces. Fasten tie-rod from toppieees to eyebolt in base, and bolt braces across struts. (T) Place front ends of channels of third section on ways blocking on car platform and rear ends on the ways support frame nearest to end of mortar car. Connect front ends of channels to rear of sec¬ tion two by bolting up the connection plates. Insert and bolt ways braces. (8) In similar manner place channels of fourth section with front ends on support frame on which the end of the third section rests and rear ends on the next frame. Line up channels and bolt by con¬ nection plate to third section. Bolt in ways braces. (9) Place support under forward end of mortar transport car directly beneath stiffening brackets on the side sills. (10) Place fifth section of runway in same manner as fourth sec¬ tion connecting rear ends of channels to side sills of transport car by pins. (11) Tamp earth around bases of ways supports. (/) TO TRANSFER SLEIGH AND MORTAR FROM CARRIAGE CRADLE TO MORTAR TRANSPORT CAR. (Refer to Plate IV.) Two men required. Tools needed: 1 wrench for 0.75 and 1 inch nuts. U153G. 1 wrench for 0.625 and 0.875 inch nuts, U153E. 2 monkey wrenches, 15-inch, U45H. 2 ratchet wrenches. 1 crowbar, 1243A. 1 pinch bar. 1 axe. U51D. 2 double blocks, with hooks, for 1-inch rope. 100 feet 1-inch manila rope. 2 strands 1-inch rope about 10 feet long. 23 (1) Let ail' out of recuperator cylinder, push plunger back into cylinder and secure (see Pamphlet. No. 1987. Handbook of 12-Inch Mortar Carriage, Model of 1918, Pt. II, Sec. C). Remove pull-rod bracket from front sleigh yoke. (2) Attach mortar hauling yoke to rear yoke of sleigh by two brackets and four book bolts. (3) Put rope noose around channels of gun-hauling yoke and attach to hook of double block. Attach another noose to safety chains of car and to hook on other double block of five-fall tackle. (I) Place auxiliary mortar truck on auxiliary runway as far for¬ ward as possible. (5) By five-fall tackle haul sleigh with mortar in it out of cradle till rear sleigh yoke is directly over auxiliary mortar truck. Insert steel wedges between sleigh yoke and truck till weight rests on truck. Haul sleigh out till auxiliary truck comes to stop at end of auxiliary runway. (6) Place cradles of mortar truck under sleigh between yokes, one cradle as close as possible to rear yoke and the other as close as pos¬ sible to front yoke. With blocking resting on auxiliary runway, block up cradles until runners of sleigh rest on flat cradle liners and under side of mortar on concave cradle liners. Place the two sets of mortar-truck wheels and axles on the main runway channels. Screw down jack screws in bearing connections or side frames of truck as far as possible. Slip bearing connections over ends of axles and fasten the two bearing connections together by the two tie rods. Bolt diagonal braces. Adjust frame of truck so that jack screws are directly under holes in cradle supports attached to the mortar-truck cradles. Detach cradle support guides from cradle supports by re¬ moving set screws and bolt guides to bearing connections. (7) Screw up jack screws, using same handles as for jack screws of mortar car. until they take weight of sleigh and mortar off block¬ ing under mortar-truck cradles. Remove blocking and auxiliary truck. (8) Pass 0.625-inch cable from winch over guide sheave in bracket on left side frame of carriage around sheaves on mortar-hauling yoke and fasten to pin in bracket on right side frames of carriage. With five fall tackle haul sleigh and mortar now resting on mortar truck until it is on incline of runway, using winch and cable to prevent its sliding down runway. Hold in this position and remove five fall tackle and nooses. , (9) Slowly unwind cable from winch, letting mortar truck travel easily down runways until truck rests on level middle section of transport car. (10) Place stop blocks against front and rear sleigh yokes and bolt to side sills of transport car. 24 (. Two shell racks are first placed adjacent to each other on the car floor with pointed notches of one rack next to one side of car and pointed notches of other rack next to opposite side of car. Six shells are then placed on each rack. Two more racks and another tier of shells are then placed on top of the lower shells. The upper shells nearest the railway mortar car. when in action, are first transported by the trolley and placed on the shell truck and then pushed over the loading track to the loading platform. After the upper tier has been removed the top racks are removed and the lower shells removed in a similar manner. (c) TO REMOVE TRUCKS FROM CAR. Two men required. Tools needed: 4 auxiliary jacks. 1 7-inch pliers, U47AQ. Blocking. (1 ) Place blocking under ends of side sill so that its top surface ' is at least :i0 inches below bottom of channels. Place jacks on these blocks and raise screw until car body is raised about fi or 7 inches. (o) Disconnect chain from brake lever on truck equipped with brakes, by removing 0.875-inch pin with cotter. Insert pin and cotter in chain again and wind chain on mast. Shove trucks away and lower car on secure blocking placed under it. (d) TO DISASSEMBLE TRUCK. (Rpfer to Plate XI.) Two men required. Tools needed: 1 wrench for 0.625 and 0.875 inch nuts, T 153E. 1 wrench for 0.75 and 1 inch nuts. U153G. 1 15-inch monkey wrench. U15H. 1 7-inch pliers, U17AQ. 1 crowbar, 1243 A. 1 combination hook and packing tool. 1 hammer, U48F. 1 chisel, 3717D. For truck without brakes begin to disassemble truck with opera¬ tion 2. (1) Remove two 0.625-inch bolts, holding brake beam sup¬ port to spring plank, pin and cotter holding dead lever guide to ful¬ crum and pins and cotters holding brake shoe hangers to truck col¬ umns. allowing brake mechanisms to be removed. Take off two 0.75- inch bolts holding each shoe to brake beam and remove beam and hanger from shoe. Remove five pins with cotters and disassemble levers and lever connection from brake beam fulcrum. (2) Using hammer and chisel pound lugs of Hartley nut locks situ¬ ated under journal boxes and spring plank up against tie bars. Re¬ move two 0.875 by 10.875 inch bolts from each journal box and 1.125 by 15 inch bolts from each column, allowing tie bars to drop down. Lift upper bar of ahch bars and cardholder otf of journal boxes and columns, but leave lower bars in place to support spring plank, col¬ umns, springs, and bolster. Lift bolster gently off of springs and remove springs, spring plank with columns attached, and finally lower bars of arch bars from journal boxes. (3) Lift lids of journal boxes and remove waste with hook. Lift the boxes, pull the journal bearings out and pull the boxes awav from axles. .Remove dust guards from slots in back of boxes. (e) TO ASSEMBLE TRUCK. Reverse procedure outlined in (d), taking care to replace the brake beams with the notches at ends toward wheels. (/) TO PLACE TRUCKS UXDER CAR. Reverse procedure outlined in (c). (g) TO PACK JOURNAL BOX. (See Part I. Section B, Division (i)). 28 (h) TO TAKE XT' SHOE WEAK. (See Pamphlet No. 20-24, Part II, Section B, Division (/>))■ (i) TO REPLACE BRAKE SHOE. (Refer to Flate XI.) One man required. Tools needed: I wrench for 0.75 and 1 inch nuts, U153G. (1) Release brake mechanism. (-2) Remove two 0.75-inch holts holding each shoe to brake beam, remove shoe from brake beam and U hanger, and replace with new shoes. Section B.—POWDER CAR. (d) DESCRIPTION. (Refer to Plates XIII.) For list of parts, piece marks, and the material of which they are made see page 34. The underframe, brakes, coupler, and trucks of the tiO-centinieter gauge powder car are the same as those of the shell car, with a few exception--. The sides and ends of the car, which are 2 feet 6 inches high, are composed of yellow-pine plank, reinforced at the top with 0.1r le ■r. 1 2 2 2 2 2 2 2 1 1 2 2 2 2 2 2 2 2 2 2 2 8 8 16 32 8 8 4 16 4 4 16 16 16 16 8 8 16 16 16 8 24 48 24 24 24 24 r Go-centimeter track mortar transport car—Continued. •rawing. No. 16 Name of piece. 12-wheel, 60-centimeter truck—continued. Coupling—Continued. Draft spring Drawbar spring bolt.. Drawbar coupling pin.. Drawbar pin chain do. Drawbar pin clevis do. Drawbar pin do. Drawbar coupling pin ...do. latch. Drawbar and spring bolt ...do., pin. Coupling link j —do. Follower guide bottom !...do. Follower plate do. Material. Spring steel Steel. ..do.. Brake. Hand brake wheel. Pawl bolt Brake mast support Brake ratchet pawl Brake mast support brace. Pawl plate Pawl stop Brake mast Ratchet wheel Brake chain clevis.. Pedestal plate. do Pedestal end spacer Pedestal spacer Outside pedestal top angles Inside pedestal top angles Cover plate . Tie bar support Bolster Truck center plate Equalizer Spring cap filler do Tie bar clip Pedestal tie bar End tie Equalizer spring Cast iron.. Wrought iron or steel. Steel Castiion .. Steel . ..do . ..do ...do Cast iron. Wrought iron. Steel ..do ..do. ..do. ..do. ..do. ..do. .do. Spring seat... Spring cap... Side bearing. Journal box Journal box tap bolts.. Journal box lid Journal box lid spring. Dust guard Dust guard.wedge. Cast steel.. Halleable iron. F. S Steel ..do . ..do ...do . ..do . ..do Cast steel.. . ..do Malleable iron. ...do Steel Spring steel. Brass wood. Oak Remarks. 0.75 by 72.25 long; free height, 8; solid height, 6; load compressed, 7.25, 2,000 pounds; capacity, 5,000 pounds. With 1.375hexagonal nuts; 0.375 by 3.25 cotter. 0.187 diameter. 0.25 diameter. With 0.875 by 0.125 wash¬ er; 0.187 by 1.25 cotter. With 0.375 by 2.5 cotter. 6.5 by 6.5 by 1. With 0.75 nut; 1.75 cotter. 0.5 thick. 0.187 by 0.375 thick. Do. 0.187 thick. With 2 0.875 hexagonal nut; 2-1 washer; 4 0.25 by 2.125 cotters; 2 0.187 1.625 cotter. 0.375 thick. 0.375 thick without ''A'* holes. 5 by 9 pound channel. Do. 3 bv 2.5 by 0.375. "Do 0 375 thick. 5 by 9 pound channel. 3.75 by 2. 0.375 thick. Do. 2.5 by 2.5 by 0.25. 2.5 bv 0.5. Do. Free height, 7.75; solid height, 6.375; com¬ pressed to 6.875; 9.600- pounds. 3.25 by 5.25. 0.5 by 1; threaded 0.625^ - 5.25 bv 0.125 by 0.25. 1.5 by 0.093 by 7.187. 5 by 6.25 by 0.625. UI. 24 8 in 12 12 6 24 16 8 20 4 s 4 24 2 2 2 8 S 8 4 4 16 16 28 48 64 20 6 • 6 2 2 4 4 2 2 2 2 2 2 2 2 2 1 1 1 1 1 r 60-centimeter track mortar transport car—Continued. ) rawing. No, Name of piece. Material. 12 wheel, 60-centimeter truck—continued. Brake—^Continued. Journal bearings Flangeless wheel Wheel Axle Brake shoe Brake beam Brake beam bolts with nuts and grip nuts. Brake beam hanger end... Brake beam hanger center. Brake beam pin do Brake beam hanger bracket (end). Brake beam hanger bracket (center). J3olts-J4lth-mits and .grip nuts. Brake lever do Brake lever connecting hanger. shell car (60-centimeter gauge). Shell rack. Sides Intermediates. Ends Centers Stops Blocks Corner gussets Bolts, square head. .do., .do.. .do.. Superstructure. Side post (right) Side post (left) Side post gusset Shell trough support... Shell trough gusset Hoist beam support End posts and corner post connection t,right). End posts and corner post connection (left). Corner post gusset (right).. Corner post gusset (left*... Hoist beam support filler.. End post (right) End post (left) Corner post aright) Corner post (left) Hoist beam support (center). Side post center (right) — Side post center (left) Brake mast Hoist beam Brass Cast iron.. . ..do Steel Cast iron.. Steel Wrou g h t iron or steel. . ..do Steel . ..do Wrought iron or steel. ...do F. S . .do Wrought iron. Oak.. ..do.. ,..do.. ...do.. . ..do.. ...do.. Steel. Remarks. Steel. . ..do.. ...do.. .. .do.. . ..do.. .. .do.. .. .do., . .do .do., .do., .do., .do., .do., .do., .do., .do.. .do., .do., .do., .do.. Lead lined, 3.25 by 5.25. 15.75 diameter. Do. 3.25 by 5.25. 0.5 by 3.125. 0.375 thick. Do. With 0.25 bv 1.375 cotters Do. 0.5 by 1.875. 3 by 1. Do. 0.5 diameter 4 0.125 by 0.75 cotters; 4 0 5 stand¬ ard nuts. 117 by 5.5 by 3.25. Do. 52.25 by 5.5 by 3.25. Do. 102. 12 by 5.5 by 4.875. 0.375 thick. 0.625 by 5.75 with square nuts and washers. 0.625 by 6 with square nuts. 0.625 by 8.5 with square nuts and washers. 0.625 by 11.5 with square nuts and washers. 3 by 3 by 0.5. Do. 18.75 by 0.375 by 24.5. 3 by 3 by 0.5. 6 by 0.375 by 6. 8 S. B. channels, 17.6 pounds. 3.Z bv 6.7 pounds. Do. 4 bv 0.4 bv 0.5. Do. * 8 S. B. channels, 17.6 pounds. 4 by 4 by 0.5. "Do.* 7 20-pound I beams. 1 . 4 ■2 1 4 2 1 1 5 5 2 2 2 2 2 4 2 2 2 6 1 1 2 1 2 1 1 1 1 1 4 1 1 1 4 1 1 4 2 2 4 2 2 2 2 2 2 2 2 2 2 2 2 2 35 Equipment for 60-centimeter track mortar transport car—Continued. Drawing. Name of pie~e. Material. Remarks. 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 11 shell car (60-centjmeter gauge)—continued. Superstructure—Contd. Hoist beam end angle. Side sill Steel. ...do.. Name plate- Brass.. Underframc. Draft casting Draw bar Bolster diaphragm and cross bearer. do do do End stake and end sill con¬ nection top (right). Fnd stal e and end sill con¬ nection top (left). Bolster tie plate End stake'ahd end sill con¬ nection bottom (right). End stake and end sill con¬ nection bottom (left). Floor strip Cross bearer tie plate Cross bearer cover plate... Bolster cover plate Center sill stifTeoer Brake pawl plate Brake mast support King pin cover plate Pawl plate Drawbar guide Brake lever fulcrum top... End sill do Platform-floor support Brake lever fulcrum bot- bottom. Center and end sills con¬ nection. Center sill do End step Drawbar guide support... Subend sill angle Cast steel. . .do Steel . .do.. . .do.. . .do.. . .do.. . .do.. . .do.. .. 19 1 ; 19 15 19 l.i 19 15 19 1 . 19 15 19 1 19 15 19 15 19 15 19 15 19 15 19 15 19 15 19 15 19 15 19 15 19 15 19. 16 19 16 19 16 19 16 19 16 19 16 19 16 19 16 19 16 19 16 19 16 19 16 19 16 19 16 19 16 19 16 19 16 19 16 16 18 16 18 16 18 16 18 16 18 16 18 16 18 16 IS 16 18 16 18 16 18 16 18 16 18 16 18 16 IS 16 18 16 IS 16 18 16 18 16 IS Name of piece. Material. vv'lii e oak. MORTAR RUN-WAY—COntd. Ways support (hp)—Con. Ways support strut... .do ». ays support brace... ... .do Bo ts (with washers 1.. Ways support t base .. .do Eve bo t (wit i washers ie ro I 1 do Ways blocking Bolt, square head 1 Shim (for 12 ways) Wood screws, flat head Plate Block do Plate Steel do do, Bolts (riveted when as¬ sembled).1 Ways (car end section). **. White oak. ..do Steei . .do Steel . .do . do White oak, Steel. Steel White oak, do. Ways (intermediate sec¬ tion). Plates Bolts i Ways (upper end of incline) Plates Bolts 1 Ways (carriage end sec- Steel tion). Plates do. Bolts 1 Steel-.L... . ..do . ..do Steel. Remarks. Wjys brace. Channel Steel Angles do Bolts 1 Truck stop Steel Channel separator 6 by 0. I)o 2.6 bv 0.6. Do. 0.76 bv H. thread 3 long. 8 bv 8 bv 84. ' Do.' With 0.76 washer. Do. 12 by 13 by 48. 0.75 by 13. 0.125 by 3.5 by 6. 2 No. 24. 10.5 by 0.5 by 48. 3 by 10.5 by 48. 4 by 0.5 by 22. 4 by 0.5 by 14. 0.5 by 10.75 with washers. 1^35-pound channels, 99.5- long. 12 35-pound channels, 96. long. 9.5 by 0.75 by 12.625. 0.75 by 2.25. 12 35-pound channels. 9.5 by 0.75 by 12.625. 0.75 by 2.25. 12 35-pound channels. 9.5 bv 0.75 by 12.625. 0.75 by 2.25. Ways (carriage end sec¬ tion). Bolts 1 do Steel. Car runway. Track channel (right) Steel Track channel (left) do Clamp plates do Bearing angles do Splice plates do Clamp bolts 1 Splice bolts 1 Track channel ( ight I.. .. Steei Track channel (left) Inside track guide Outside track guide Blocking Loading track brace Bolts 1 Top blocking I. ..do. Lo ver blocking channels.. Lo.ver blocking blocks Square head holts 1 Top blocking do ...do .. .do Yellow pine F. S Yellow pine .. .do Steel Yellow pine Yellow pine 6 8-pound. 33.5 long. 2.5 bv 2.5 by 0.375 , 9.5 long^ 0.75 by 2. 2.5 by 2.5 by 0.375 angle. 0.75 galvanized pipe, 5.312 long. 6 13-pound channels. 0.75 by 1.75. 0.75 by 7.5. 12 bv 2 >.5 pound. 192 long- t>o. 9.25 by 0.5 by 5. 3 by 3 by 0.5 by 10. 7.5 by 0.5 by 10.75. 1 by 6.5. 0.75 by 2.5. i2 bv 20.. p >und. 270 long.. Do. 3.75 by 0.5 by 57 4.75 by 0.5 by 57. 7 by 10 by 36. 2 by 0.5. 0.75 by 1.75. 3.5 bv 10 bv 36. 3.5 by 10 bV 36. 7 bv 9.75 pound, 66 long. 7 by 8 bv 66. 0.875 bv 9.5. 3.5 by 10 bv 36. Bolts provided with nuts. 89 Equipment for 60-centimeter track mortar transport car—Continued. Piece mark. 11 A. IIB. IIC. IID. HE. 11F. ne». 11H. 12A. 12 I 12B. 4 I 12C. 4 I 12D. 12E. 12F. 12P.. 12H. 12 K. 12L. 13 A. 133. 13C. 13D. 13 . 13F. 13 ;. 10\. 103. ioe. 10D. 103. 10F. io ;. 10H. 10 v. 10L. IOM. Drawing. Name of pieee. MORTAR TRUCK. Cradle. Angle Plate —do — do I.iner Bolt1 I iner Bolt1 Support guide Bolt1 Tap bolt Cradle support Bearing (right) Bearing (left) Do vel pins Bushing Screw Dor point set sere v. Axle Truck wheel Diigoml brjs*.. Angle Gusset Bolt1 Bearing connection. Tie rod AUXILIARY MORTAR TRUCK. Bolster Wedge stop Tan bolt Bolt' Wed re Journal-bearing Bolt 2 Journal-bearing cap. Tap bolt Truck wheel Truck axle Material. Steel ...do .. .do .. .do White oak. White oak. Cast steel . Cast steel . .. .do .. .do Steel BronzeNo.3 F. S Steel. . .do. Steel. . .do. Steel. F. S.. Steel Cast steel. Cl st steel. . .do Cast steel Steel C. R. S... Remarks. 4 by 4 bv 0.625. 16.25 by 0.5. 16.5 bv 0.625. 6 by 0.625. 0.5 by 2.5. 0.5 by 3.25. 0.75 by 2.5. 0.75 by 1.5. 0.5 by 1. 0.75 by 1.5. 2.5 by 2 by 0.375. 0.5 thick. 0.75 by 2.25. 0.5 thick. With four 1.25 nuts. 1 by 3.5 thread 3.25 long. 0.75 by 2.25. 0.75 by 2.625. 0.75 by 2. 1 Bolts provided with nuts. 2 Bolts pro/ided with nuts and loek vashers.. War Department. Office of the Chief of Ordnance, Washington, April 23, 1919. Form No. 2025. Ed-Apr. 23-19—2,000. PLATE I. REMOVE ABLE MIL _NARROW GAUGE TRUCHS R r.GUN CAR SUPPLY CAR AAA ROW GAUGE TRAMS PORT CAR RE MO YE ABLE SECTION ^SUPPL Y CAR REMOVE ABLE RAIL / 6UN F=3^3^ MAR ROW GAUGE ERi/ERS- Y GUN CAR ao: \sUPPLY CAR SUPPLY CAR RE MOVEABLE RAIL NARROW GAUGE TRUCKS \ nr. GUN CAR :OOi: vsupply car >C MOVEABLE RAIL NARROW 6AUGE TRUCKS RY GUN CAR no SUPPLY CAR SUPPLY CAR jL — Z REMOVE ABLE SECTION RCMOVEA0LE SECTION REMOVE ABLE SECTION F!6. / !b=B NARROW GAUGE TRANSPORT CAR r/a. £ W NARROW GAUGE TRANSPORT CAR r/a. j .GUN iP J-Q / HARROW &AUGL TRANSPORT CAR r/6. 4 Dfit PER' TAINS TO CLASS J« SUCCESTED TRACK ARRANGEMENT FUR PLACING CARS FROM BROAD TO NARROW GAUGE ROADS. „ /-) StfMTTCO: ■OTUW XPAA TMf B 7 lilA Of VISION a may a, an 77fi»WD«raRbiAQ/Mt6«of'dAwd Nwv.w~. DRAWING to FILE 110759—10 PLATE II. 116759—19 PLATE III. KKi I'ilifl I SHEAVE CRADLE LINERS DRAFT GEAR DRAFT GEAR CHANNELS 7M BOLSTER CHANNELS 7K — DRAFT GEAR END SILL CHANNEL 7L GUN BRACKET CHANNEL BRACKET- CRADLE LINERS (CONCAVE) DIAGONAL BRACES HAND BRAKE BUFFER HAND BRAKE BEARING CONNECTION- HOOK BOLT- PLAN-5H0WIN6 CAR WITHOUT MORTAR SLEIGH RUNNER j SLEIGH YOKE(REAR) SUPPORT GUIDE — BRACKET SLEIGH YOKE(FRONT) PULL ROD BRACKET BRACKET CRADLE LINERS i SLEIGH RUNNER CRADLE LINER IZ INCH MORTAR ■HOOK BOLT -SHEAVE ! CRADLE SUPPORT- BEARING GUN TRUCK CRADLE FRAME SLEIGH LINER STOP BLOCK STOP BLOCK STIFFENING BRACKET - RING AND EYE BOLT NAME PLATE EEO.-ISFT4IN. TRUCK C'TRS 6 WHEEL NARROW GAUGE TRUCK 6 WHEEL NARROW GAUGE TRUCK- SECTION A-A 380.5-SIFT 8.5IN. OR,WING PCRTAN5 TO NARROW 6AU6E TRANSPORT CAR MODEL OF 1918 Pgfcfts FOR 12 INCH MORTARS jj£%J CAR ASSEMBLY nm —gaaaay uaa. I" DIVISION IO I DRAWING 61 I FILE REVISIONS li fl) JO AO 50 60 70 80 90 100 110 180 130 INCHES 11G759—19 PLATE IV. SIDE ELEVATION 24 40 60 80 100 120 MO 160 ISO 200 220 240 260 280 INCHES TAUT TO: '.Tt'TIWWF TK CLASS 5<5 NARROW GAUGE TRANSPORT CAR MODEL OF 1910 FOR 2-INCH MORTARS METHOD OF ASSEMBLING MORTAR s*.iTT!S n i i lu ; J gppwig KprvrMy ua<»- I PRCnANCE department u.sa DIVISION /27 | DRAWING SS | FILE 110759—19 -1 PLATE V. PLATE VI. 116750—10 I PLATE VII. OTHER END OR JXCKLE FFSTENFD TV ff£>DF &tFsrr CH*/NS OF OR* SFFLL THCHLF FOR HAULING QUN W \ \ our OF CRA OL £ \ / \ \ I / 1 \ / 1 — / fV-TT : top or tom?/NG purrropm 9 /£ /6 ro pt 49 JP 36 48 44 48 Sp f6 60 64 63 72 76 SO S4 83 SP //VCPPS NARROW GAUGE TRANSPORT CAR MODEL or m (FOR IE INCH MORTARS) \mmi&TOF m ON CARRIAGE CLASS 34 wormr ™Ai0n asasnst rim [t-is fHXU) BT CWCR Cf Tl : M.TM U«T cf OMfrC a.-»JAMCf OEfWTVCNT u.SN.A>*JC)« QRONAACC )tft*RTMtKT U.SNj DMSON If DRAWING -5 116759—19 PLATE VIII. 116759—19 PLATE IX. 116759—19 L PLATE X. inn$n SECTION AT CR0S3 BTARER. SECTION AT 4.5 O/A 975 fu FLUSH FLOOR LCT IN WITH e'sa c 17. fc * BLACKALL RATCHCT SRAKE1. X LENGTH OF HOIST BEAM- INSIDE OR'G. PER¬ TAINS TO SMELL CAR - NARROW GAUGE FDR RAILWAY BATTERIE5 MODEL Of 1915 GENERAL ARRANGEMENT REVISIONS AM B I*>B CLASS Q£C 2 9 /9/7 ItfRTTctT IXAMBKO I5-0 — OVE.R END ■.y/O" yDHA.CC, Of^TMTNT UiA DIVISION II DRAWING 2. FILE CLASS 3A 11R759—10 PLATE XI. 116739—10 r PLATE XII. I PLATE XIII. 110759—10 T PLATE XIV. 63.75 IN5IDC SECTION AT CROSS BEAKO? 23675 = 13- 87? INSIDE LENGTH ~5Z0U(SZi\ ORG. PER TAINS TO CLASS) OIV. SUPPLY CAR-NARROW GAUGE FDR RAILWAY BATTERIES MODEL OF 1918 GENERAL ARRANGEMENT HfVISIONS TLeSrrfED" cm aa 1/ )fZU "AV, yfriVM "»« 11 cov^ DIVISION 13 DRAWING 2. CLASS 34- 116759—19 " V