5| 65. |
32-pounder 27 cwt. |22. | 17.5| 8. | 5.5 | - | 1.3 | 1.55| 61. |
| | | | | | | | |
_Broadside Rifle._ | | | | | | | | |
100-pounder |35.5 | 31. | 9.5| 6. | 3.6 | 1.6 | 2.05| 115. |
60-pounder |28. | 23.5| 8. | 5.5 | - | 1.3 | 1.55| 80. |
30-pounder |25.5 | 21.5| 7. | 5. | - | 1.2 | 1.55| 39. |
20-pounder |23. | 17.5| 6. | 4. | - | 1. | 1.55| 34. |
--------------------------+-----+-----+-----+-----+-----+-----+-----+------+
211. Gun-tackle falls will be made of Manilla or such other pliable
rope as may be directed from time to time by the Bureau of Ordnance.
It is prohibited to blacken them or to diminish their pliability.
Three-inch rope will be found large enough for the heaviest, and from
2-1/2 to 2-1/4 inch for the lighter guns.
The rope being well stretched, the falls are to be cut of sufficient
length to allow the full recoil, leaving end enough to hitch round the
straps of their inner blocks, when hooked to the middle bolts.
212. Blocks for gun-tackles should have pins of hardened copper,
turned smooth, and sheaves of lignum-vitae without bouching. Those to
reeve 3-inch falls to be 10 inches, those for 2-1/2 inch falls 9
inches, and those for 2-1/4 inch falls 8 inches long. The hooks of
gun-tackle blocks are not to be less than one and a half inch diameter
at the bend for heavy, and one and a quarter for light,
broadside-guns.
Metallic blocks with nibs, which keep the blocks fair with the falls,
and thus prevent the falls from fouling in the recoil, are to be
supplied to all Marsilly and heavy pivot carriages.
GRIOLET.
213. The GRIOLET-PURCHASE for dismounting guns on covered decks is
composed of--
A toggle-block, made of elm or oak, the outer end or head of which is
made rather larger in diameter than the inner one, which exactly fits
the bore of the gun. The head has two sheaves in it, so as to form the
lower block of the muzzle-purchase, and is bound at the outer end with
an iron band.
A double cascabel-block of iron is made either with a shackle or to
fit between the jaws of the cascabel, where it is secured by the
cascabel-pin. The iron pins on which the sheaves revolve are formed
with eyes, for the convenience of hitching the standing part of the
purchase.
Two iron treble-blocks, one for
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