Farrow's military encyclopedia : a dictionary of military knowledge . ical plunger, k, has throughits axis a longitudinal channel, at the head of whichis secured a sharp steel projecting point; forwardmovement of the pbmger, except upon impact inflight, is prevented by a steel crown-shaped spring,m, similar to the one l;eretofore described. A hollowcylinder, n, centers the plunger and is long enoughto permit the pin point to reach and pierce the ful-minate on impact; the slock is closed by a brass ring,w, resting on a shoulder turned in lop of stock. The action of the combination is as follows
Farrow's military encyclopedia : a dictionary of military knowledge . ical plunger, k, has throughits axis a longitudinal channel, at the head of whichis secured a sharp steel projecting point; forwardmovement of the pbmger, except upon impact inflight, is prevented by a steel crown-shaped spring,m, similar to the one l;eretofore described. A hollowcylinder, n, centers the plunger and is long enoughto permit the pin point to reach and pierce the ful-minate on impact; the slock is closed by a brass ring,w, resting on a shoulder turned in lop of stock. The action of the combination is as follows : Uponthe infiammalion of the charge, the plunger is thrownback, the spring being compressed, and the plun-ger, with its fulminate, strikes the metallic point;the gas due to the consequent ignition passes througlithe openings in the wall of the lube, spreads intothe circular groove around the outside of the tube,ignites the priming of the burning column, and thuscauses the inflammation of the section of this columnin contact with it; intlammalion spreads along the. burning prism, and. reaching its origin, is communi-cated to the second tier (if fuse is set for more than10 seconds), and so on to the chamber and recess ofrifled powder which communicates with the powderin shell. The combustion of the priming of com-pressed powder produces sutficient heat to melt thethickness of metal which closes the priming-cham-ber, and thus affords a broad outlet to the gas fromthe burning column. From experiments made in KUB IRON. 800 ETTMSET GUN. Switzerland, it is believed these fuses offer entiresecurity against premature ignition, the shells beinggiven the most violent shocks which could be re-ceived in transportation, loading, or unloading. Theignition is very certain, even wUh reduced charges. Should the fuse strike any resisting object beforethe burning composition has reached the point tcwliich the time-fuse was set, the plunger or percus-sion attachment, C, is thrown forward, the spr
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Keywords: ., bookcentury1800, bookdecade188, booksubjectmilitaryartandscience
