Annual Report of the Secretary of WarU.S. Government Printing Office, 1887 |
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Página 183
... finished diameter before shrinking , and finished turned on the exterior as far forward as the sleeves . Time occupied in these opera- tions ; skilled machinists , 157 hours ; laborers , 30 hours . Work on the jacket was commenced May ...
... finished diameter before shrinking , and finished turned on the exterior as far forward as the sleeves . Time occupied in these opera- tions ; skilled machinists , 157 hours ; laborers , 30 hours . Work on the jacket was commenced May ...
Página 184
... Finished boring of the assembled gun was com- menced June 29 , finished July 6. Time occupied : machinists , 44 hours ; laborers , 44 hours . Rifling commenced July 9 , finished July 16. Time occupied : machin- ists , 67 hours ...
... Finished boring of the assembled gun was com- menced June 29 , finished July 6. Time occupied : machinists , 44 hours ; laborers , 44 hours . Rifling commenced July 9 , finished July 16. Time occupied : machin- ists , 67 hours ...
Página 257
... finished diameters prescribed , before any part of the interior is fine - bored or fin- ished . All the parts are to be accurately finished , fitted and assembled , and the mortar completed in accordance with the drawings and ...
... finished diameters prescribed , before any part of the interior is fine - bored or fin- ished . All the parts are to be accurately finished , fitted and assembled , and the mortar completed in accordance with the drawings and ...
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Palavras e frases frequentes
3.2-inch breech-loading alidade annealed Appendix Arsenal axle band base ring blank cartridges block bolts brake breech breech mechanism breech-block breech-loading rifle caliber 45 carriage carrier ring cartridges cast cast-iron cent chamber Chief of Ordnance compression contract cooling cylinder Density Double hooping Du Pont's dynamite Elastic limit Elongation after rupture Exterior diameter feet field guns finished forgings front Gatling gun grooves heated hole Hook Hotchkiss inch of original Inside interior jacket June 30 lathe length manufacture Mean measured metal Middle Midvale Steel Company mortar muzzle nitro-glycerine Ordnance Department Ounces P₁ P₂ pins pounds per square powder prescribed pressure primers R₂² rear rear-sight rounds sabot Sandy Hook screws seat shell shot shrinkage shrinking Single hooping sleeve slot South Boston Iron spindle square inch steel breech-loading surface Tensile strength thread Tons Total number transom trunnion-hoop trunnions Watertown Arsenal Watervliet Arsenal weight ז ז ז