Century Dictionary and Cyclopedia
- n. The vertical bolt which serves as the axis about which a gun swings horizontally.
“When the forward and after slides are of different lengths, and the traversing circles of different diameters, the longest slide will be fitted with an additional rear pivot-hole and plate, to correspond with the smaller circle, in order that the gun may be worked from the midship pivot-bolt and shifted to the different fighting centres or pivot-bolts of the smaller circle.”
“No. 2 levels the gun and wipes off and re-lacquers rear pivot-bolt and elevating screw; puts on sight-aprons; puts in rail-chocks and assists in securing lashings and breeching.”
“Compressors and levers, pivot-bolt | and housing-chock, for Friction |”
“Loaders put in the tompion and on muzzle-bag, and wipe off and re-lacquer the front pivot-bolt.”
“He will also assure himself that the following articles, which may be required, are in readiness in his division, and prepared for use, namely: One rattle for calling Boarders; one division-tub for fresh water; one spare bed and quoin for carriages requiring them; two spare gun-trucks; four spare handspikes; one worm; one scraper; one bristle sponge for cleaning guns; two spare breechings; four swabs, and, if any of the guns be on slides, a spare pivot-bolt.”
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