Excerpt_-_Pages_from_1861_US__Army_Ordnance_Manual.pdf

•14 ORDNANCE MANUAL.

CHAPTER THIRD.

ARTILLEKY CARRIAGES.

NOMENCLATURE.

The nomenclature and the tables of weights and dimensions given in this chapter apply to the latest patterns adopted.

The parts are enumerated generally in the order in which they are put together.

The wheels are designated by numbers referring to special description given after the carriages.

The axle-trees, washers, linch-pins, nave-boxes, bolts, nuts, &c., are designated by letters and numbers which refer to the forms and dimen¬ sions laid down in the tables.

Field Gun Carriages. (Plate 2.)

There are four gun-carriages for field service, viz.:

One for the 6-pounder gun and 12-pounder howitzer.

One for the 24-pounder howitzer.

One for the 12-pounder gun, model 1857.

One for the 12-pounder gun and the 32-pounder howitzer.

The parts of these carriages are all similar, differing only in their dimensions. The parts which are common to all are marked with an asterisk (*).

The carriages for the 24-pounder howitzer and 12-pounder gun, 1857, differ chiefly in the length of the cheeks, and the position of the elevating-screw.

Wood.—1 stock in two pieces, assembled with 2 dowels; 2 cheeks; 1 azle-hody.

Iron.—*2 trail-handles, fastened by 2 bolts No. 3 A, and 2 nuts.

1 lock-chain, (page 70;) 1 lock-chain bolt A; 1 toasher; 1 nut.

1 lunette for the trail: the under side of the front part of the circum¬ ference is plated with steel.

1 trail-plate, plate-iron No. 6, fixed to the lunette by 2 rivets No. 3 B. The lunette is fastened to the stock by 6 nails No. 2 C, and tl^ trail-plate by 6 nails No. 2 C, and both by the pointing-ring bolts. W

1 large pointing-ring and plate: the plate is fastened W the trail by 2 bolls No. 3 11, and 2 nuts, octagonal. ^

1 small pointing-ring ; 2 bolts No. 3JI, and 2 nuts, octagonal.

*2 wheel-guard plates, fastened to the sides of the stock by 10 nails No. 2 C.

*2 prolong e-hooks, fastened on the top of the stock by 8 nails No. 2 C.

LIMBER. 45

1 stop for rammer-head, fastened to the under side of the stock by 4 nails No. 1 C.

*1 ear-plate for worm, fastened to the under side of stock by 2 nails No 2 C.

*1 ear-plate key and chain of 5 links No. 1, and 2 rings No. 1 B, attached to the stock by 1 eye-pin No. 1.

2 chains and hasps for sponges and rammers, united to 1 eye-plate, which is fastened to the under side of stock by 2 screws No. 20, 3 in.

*2 turnbuckles, (brass,) riveted to the studs of 2 stud-plates, which are fastened to the sides of the stock by 4 nails No. 2 C.

2 trunnion-plates, fastened to the cheeks by 6 cheek-bolts A, 4 washers, G nuts; by 2 chin-bolts, 2 bevel washers, 2 nuts; by 2 key-bolts, 2 nuts, and by

28 nails (16 No. 2 D and 12 No. 2 C) for the 12-pounder carriage, and by 20 nails (12 No. 2 D and 8 No. 2 C) for the others.

2 cap-squares; 2 eye-pins No. 1, riveted into the cap-squares; 2 cap-square chains, each consisting of 5 links No. 2 and 2 rings No. 2 B.

2 eye-pins No. 2, screwed into the outside of the cheeks; 2 cap-square keys; 2 key-chains, each 5 links No. 1 and 2 rings No. 1 B; 2 eye-pins No. 1 for key-chains,-screwed into the outside of the cheeks.

* 2 D-rings for handspikes, fastened near the head of the cheeks by 4 staples.

6 rondelles, (cast iron,) placed between the cheeks and stock.

3 assembling-bolts, for the cheeks and stock; 3 washers ; 3 nuts, 1 of them octagonal.

*1 washer-hook for lock-chain, under the head of middle assembling-bolt on the right cheek.

2 washer-hooks for handspikes, held by the rear assembling-bolt.

1 axle-tree No. 1. (See page 68.)

2 understraps: the front ends hold the implement-hooks.

1 axle-strap has an eye for the sponge-bucket, 3 bolts No. 4 B, 3 nuts: 1 bevel washer for the 6-pounder.

2 axle-bands on the end of the axle-body, fastened by 6 nails No. 1 C.

*1 box for elevating-screw, (brass ;) 2 bolts No. 3 C ; 2 washers; 2 nuts.

*1 elevating-screw.

*2 shoulder-washers No. 1, shrunk on the axle-tree; *2 linch-washers No. 1;

*2 linch-pins No. 1.

2 wheels: No. 1 for the 6-pounder; No. 2 for the other carriages. (See page 68.)

Limber.

The same limber is used for all the field carriages, including caisson, forge, and battery-wagon.

Wood.—1 axle-body; 2 hounds', 1 fork; 1 splinter-bar; A. foot-hoara brackets; 2 foot-boards ; \pole; \ pole-prop.

46 ORDNANCE MANUAL.

lROI^.—^screws for foot-board brackets No. 16; 20 nails for foot-boards

No. 1 C.

4 rivets No. 2 B, 4 burrs, one at each end of the hound.

4 washer-plates for stay-pins, let in and fastened on upper and under side of hounds by 8 nails No. 1 C.

1 axle-tree No. 1, (see page 68;) 2 shoulder-washers No. 1; 2 linch-washers

No. 1; 2 linch-pins No. 1.

1 pintle-hook: the inside of the cylindrical part is plated with steel; 3 bolts No. 4 C ; 2 washers ; 3 nuts No. 4.

1 stay-plate for ammunition-chest, fastened on the under side of the fork with 2 nails No. 2 C, and held by the pintle-hook bolt.

1 pintle-key, attached to the rear of the axle-body by 1 key-chain of 8 links

No. 3, and 2 rings No. 2 A, and 1 eye-pin No. 3.

1 tar-bucket hook, fastened to the front of the axle-body by 2 nails No.

1 C.

2 bolts No. 3 E; 2 washers; 2 nuts No. 3, to connect the axle-body and hounds.

2 under-straps ; 4 bolts No. 3 B; 4 nuts, 2 axle-bands, shrunk on the ends of the axle-body, and fastened by 6 nails No. 1 C.

2 end-bands for splinter-bar, having 2 troxe-hooks, fastened by 4 rivets No.

2, (wire;) 2 bolts No. 3 D for hounds and splinter-bar; 4 washers; 2 nuts

1 eye-plate for pole-prop socket, let in the under side of splinter-bar.

2 middle-bands for splinter-bar, having 2 trace-hooks.

1 fork-strap.

2 bolts No. 3 D for splinter-bar and fork; 2 nuts No. 3.

1 pole-prop socket, hooked in the eye-plate; 1 rivet No. 2.

1 pole-prop ferrule ; 1 rivet No. 2.

2 stay-pins for ammunition-chest; 2 keys ; 2 key-chains, 5 links No. 1 and

2 rings No. 1 B; 2 eye-pins No. 1.

1 rivet No. 3 B and 1 burr, for large end of the pole; 1 pole-bolt No. 3 D ; 2 washers ; 1 nut.

\ pole-pad bolt.

1 pole-yoke, composed of 1 muff; 1 collar, in 2 parts; 2 branches; 2 sliding-rings ; 2 bolts No. 3 for collar; 1 washer for muff; 1 key.

2 wheels No. 1.

Leather.—1 pole-prop strap, with 1 buckle No. 10, held by 3 screws 1 inch, No. 12.

1 Ammunition-Chest.

Caisson. (Plate 3.)

Wood.—1 middle rail; 2 side rails ; 1 cross-bar, framed into the rails ; 1 bolster iov front foot-board; 1 front foot-board; 1 rear foot-board1 axle^ body ; 1 stock.

CAISSON. 47

-1 middle assemhling-bar, fastened to the rails by 2 holts No. 3 A;

2 washers ; 2 nuts.

1 carriage-hooky let in on the under side of the middle rail.

1 rear fastened to the side rails by 2 holts No. 3 D; 2 washers; 2 nuts.

1 hridle for rear of middle rail, fastened to sides by 4 nails No. 1 C.

1 spare-wheel axle, consists of 1 body; 1 washer ; 2 ribs, fastened to the body by 3 rivets ; 1 chain and toggle ; 2 stays ; 2 nuts.

1 stay-bolt No. 3 D; 1 foot-bolt No. 3 D; 1 nut.

4: foot-hoard bolts No. 3 D; 2 washers; 4 nuts; 2 nails No. 1 C, fastening the front foot-board to the side rails; 6 nails No. 1 C for the rear foot¬ board.

2 lock-chain bridles, fastened under the front end of the side rails by the four foot-board bolts.

2 lock-chains, (see page 70.)

2 lock-chain hooks, fastened to the outside of the side rails by 4 nails No. 1 C.

1 axle-tree No. 1; 2 shoulder-washers No. 1; 2 linch-washers No. 1; 2 linch¬ pins No. 1.

2 under straps ; 4 bolts No. 3 B; 4 nuts.

2 axle-bands, fastened on the ends of the axle-body by 6 nails No. 1 C.

2 rivets and 2 burrs No. 3 B for the stock.

1 lunette: the lower side of the eye is plated with steel. The plates are fastened to the stock by 2 bolts No. 3 D; 2 nuts ; 12 nails No. 2 C.

1 key-plate for spare pole, fastened to the under side of the lunette by the front lunette-bolt; 1 key for the same, attached to the left side of the stock by 1 key-chain of 11 links No. 1 and 2 rings No. 1 A, and 1 eye-pin No. 1.

2 wheel-guard plates, fastened to the stock by 10 nails No. 2 C.

1 stock-stirrup, held by 2 bolts No. 3 D, which pass through the front foot-board; 2 washers; 2 nuts.

1 axle-strap, fastened to the middle rail by 3 bolts—one. No. 3 D, and two. No. 3 B ; 3 nuts.

1 spare pole-ring, held by the axle-strap, in rear of the axle-tree.

4 stay-pins, like those for the limber, except in length; 8 washer-plates for same, let in the top and bottom of side rails, and fastened by 16 nails

No. 1 C; 4 keys for stay-pins; 4 chains; 4 eye-pins, the same as for the limber.

1 ring-bolt for spare handspike, on the right side of the middle rail; 2 washers; 1 nut.

1 key-plate for spare handspike, fastened on the right side of the middle rail by 2 nails No. 1 C; 1 key; 1 key-chain; 1 eye-pin, same as those for ammunition-chest stay-pins.

1 key-plate for the shovel-handle, fastened on the inside of the right side

48 ORDNANCE MANUAL.

rails by 2 nails No. 1 C; 1 key; 1 key-chain; 1 eye-pin^ the same as for spare handspike.

2 staples for tool-handles, driven into the top of the axle-body.

2 wheels No. 1.

Leather.—1 pole-prop strap, with 1 buckle No. 10, held by 3 screws, 1-inch, No. 12.

2 ammunition-chests, like the one on the limber. (See page 53.)

Travelling Forge. (Plate 4.)

BODY AND BELLOWS-HOUSE.

Wood.—2 side rails; 1 front cross-bar, fastened to the side rails by 2 wooden pins; 2 middle cross-bars, fastened to the side rails by 6 wooden pins;

1 rear cross-bar, fastened to the side rails by 2 wooden pins; 1 middle rail, the ends fastened to the middle cross-bar by 4 screws No. 14; 1 axle-body; 1 stock.

4 floor-hoards, fastened to the middle cross-bars by 16 screws No. 14.

4 corner-studs, joined by tenons to the side rails, and fastened by ^ pins.

1 front end-board, mortised into front studs, and fastened by 2 pins.

2 side studs, fastened to side rails and plates with tenons and 4 pins.

2 plates, framed on the upper ends of the studs.

1 front end-stud, mortised into the front end-boards.

2 end-boards for roof, fastened to the plates and corner-studs by 6 screws No. 12 and 4 screws No. 14.

2 roof-bows, fastened to the plates by 4 screws No. 14.

2 side linings for iron room, fastened to the studs by 12 nails, 8-penny.

1 rear end for iron room, dovetailed into the side linings.

2 groove-cleats for cover of iron room, fastened to the studs by 6 screws No. 14.

1 sliding cover for iron room, consists of 6 boards, fastened to 2 battens by 36 nails, (wrought.)

2 braces for the bellows-arms, framed into, and fastened to, the corner side studs by 6 screws No. 14.

1 cap for coal-box, let in and fastened to the rear end-board of roof by 5 screws No, 14.

10 boards for sides of bellows-house, fit into rabbets in the corner-studs, side rails, and plates, to which they are fastened by 4-penny nails.

7 boards for the roof, fastened to the roof-bows and end-board by 4-penny cut nails.

1 prop for the stock, like the pole-prop for the limber.

1 bellows-pole, (hickory, oak, or ash.)

Iron.—1 axle-tree, the same as for the 6-pounder gun-carriage.

2 axle-bands, fastened on the ends of the axle-body by 6 nails No. 1 C.

2 under-straps, fastened to the side rails by 4 bolts No. 3 D, 4 washers, and 4 nuts.