gun while the shellman removes the old
truck and side-tackleman puts on new one.

With the ORDINARY CARRIAGE.--To shift a rear truck, handspikemen lift
under the rear axletree. To shift a front truck the rear truck on the
opposite side should first be taken off, then handspikemen lift under
the fore axletree.

[Illustration: SIDE ELEVATION OF XI-INCH GUN CARRIAGE AND SLIDE D. Van
Nostrand Publisher. Julius Bien, pr.]

[Illustration: SECTIONAL VIEW OF XI INCH GUN CARRIAGE AND SLIDE D. Van
Nostrand Publisher. Julius Bien, pr.]

[Illustration: PLAN OF XI INCH GUN CARRIAGE AND SLIDE D. Van Nostrand
Publisher. Julius Bien, pr.]

[Illustration: PLAN OF SLIDE FOR XI-INCH GUN CARRIAGE D. Van Nostrand
Publisher. Julius Bien, pr.]

EXERCISE OF PIVOT-GUNS.

XI-INCH SHELL-GUN

(_As an example._)

242. Arranged to traverse on circles fitted with Bossed Sockets for
pivoting, and with clevis-bolts and sockets for housing.

EQUIPMENTS AND IMPLEMENTS.

----------------------------------------------------------------------
ARTICLES FOR EACH GUN. | WHERE THEY ARE TO BE PUT
| WHEN THE GUN IS SECURED.
-----------------------------------+----------------------------------
Carriage and slide complete, with | In place.
elevating screw and pivot-bolts |
Two front roller levers |}
Two rear do. |} Becketed to brackets.
Two levers for training and |}
shifting trucks |}
Two in-tackles | Hooked in place.
Two out-tackles | Do. do.
Two shifting-tackles | Made up on slide.
Two training-tackles | Do. do.
Breeching | In place.
Preventer | Do.
Lashings for securing gun | Do.
Tompion, with wad and lanyard | Do.
Sponge and cap |} Becketed to beams between decks,
Rammer |} or inside the brackets.
A pot of oil or prepared grease | Breast of carriage.
for rifle cannon |
Lock, with string |} In place.
Vent-plug |}
Lock-cover and strap | In place on gun.
Breech-sight and cover | Do. do.
Reinforce-sight and cover | Do. do.
Trunnion-sight | In box between decks.
Priming-wires | Inside brac