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Ordnance Memoranda Volume 21 United States Army Ordnance Dept

Ordnance Memoranda Volume 21

United States Army Ordnance Dept

Published September 12th 2013
ISBN : 9781230358666
Paperback
42 pages
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 About the Book 

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1878 edition. Excerpt: ...of the holt isMoreThis historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1878 edition. Excerpt: ...of the holt is countersunk flush with the bottom of the lower plate, which has a slot to prevent the bolt from turning when the nut is screwed on. Each plate has on the inside 3 beds for the shot, of a depth equal to half the thickness of the plate. They are made in the form of a spherical segment, the curvature of which is the same as that of the shot- their centers are on equidistant r.adii, midway between the edge of the bolthole and that of the plate. In the upper plate are 2 holes.25 inch diameter placed opposite to each other at.5 inch from the edge of the plate to receive a rope handle. For the 8-inch siege-howitzer the stand of grape must be attached to a sabot as for canisters. The sabot may be fastened to the lower plate with screws, or the bolt may be made long enough to pass through it, or else the sabot may be inserted into the piece separately from the stand of grape. FILLING SHELLS. Workmen.--1 man to fill- 1 helper. Materials.--Powder- cylinders of rock-fire- loaded juses- fuse-pilugs: tow. Implements.--1 pair of shell-hooks- 1 handspike- 2 hand-hammers- 2 scrapers (pieces of sword-blade)- 2 tote-hooks- 2 pairs of pincers- rags- 1 chisel and 1 mallet, to clean the shells and break up any hard substances that may be found in the interior- 2 searchers, for sounding cavities- shellgauges- 1 grate, to dry the shells on- 1 fuse-saw- 1 gimlet- a ring of rope, or a hollow block- 1 funnel- potvder-measures- 1 tub or vessel for powder- 2 baskets, for the composition and fuses- 1 rasp- 1 fuse-setter- 1 mallet- 1 fuse-reamer. The shells are cleaned inside and out, gauged, and examined that they have no defects that would cause their rejection- that the fuse-hole is not defaced- if there be water in the cavity, the shell is dried by...