Farrow's military encyclopedia : a dictionary of military knowledge . forced into these i^rooves, andany disturbance of it ou the body at starting is thus jectile, and the rilling is impressed on tlie riljM onlycovered by the tubiiiL. Its dimensions and weifrlitsare as follows : l,eni;tli of body, inches ; entireliiiLlh with fuse, inches; lenKlli >f brasscoat-int;, ) inches. The carlrid^re-case is composed of a spirally-rolledtube of sheet-brass, strengthened at the head withan inside and outsirle cup. The head is punchedout of sheet-iron, and is fastened to the cups withthr
Farrow's military encyclopedia : a dictionary of military knowledge . forced into these i^rooves, andany disturbance of it ou the body at starting is thus jectile, and the rilling is impressed on tlie riljM onlycovered by the tubiiiL. Its dimensions and weifrlitsare as follows : l,eni;tli of body, inches ; entireliiiLlh with fuse, inches; lenKlli >f brasscoat-int;, ) inches. The carlrid^re-case is composed of a spirally-rolledtube of sheet-brass, strengthened at the head withan inside and outsirle cup. The head is punchedout of sheet-iron, and is fastened to the cups withthree rivets. The primer consists of a casi; holdingthe anvil, and is closed at the bottom end by the capcontaining fwlminati- ; it is lilted into a hole whichpenetrati-s tli<- hea<l and both cups, and it projectsthrough into the inside of tin- cartridge-case. Thiscartridge, which can be manufactured with greatfarility, on account of its simplicity, has jjroveditself to be of a very durable (pialily. and it can beused repeatedly, Iht construcliuu of the body of. Fifr. 4. Hotchkies Revolving Cunnon. with Shouobviated. These grooves serve at the same time asbreaking-lines of the shell. After the coating is at-t4iched to the projectile, some small saw-tooth-likegrooves are cut into it. to reduce the strain whilebeing forced through the rifling of the barrel. Thesegrooves can be filled with a lubricating substance,an<l this is then carried perfectly between the pro-jectile and the bore of tlie barrcl. The coating ofthe projectile is conical at its front part, correspond-ing with the cone in the projectile-chamber, so thatit is exactly centered in the bore as sooii as the for-ward movement commences. Its rear end is cylin-drical to within about one-third of its length. Theshell is turned smooth all over, and is nearly 0. 016in diam<-ter less than the bore of the barrel. Thisprojectile is made with great care and exactness,witii only a very small deviation in dimension. The
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Keywords: ., bookcentury1800, bookdecade188, booksubjectmilitaryartandscience
