. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . Fig. a.—Giffard gun—gas-chamber. trigger is pressed the hammer strikes the extremity^ of the rod/, and, through its impact,thrusts the valve ^ to a distance regulated by the stop e. There then escapes through c acertain quantity of liquefied gas, which expels the projectile that has previously been intro-duced into the barrel through a sort of cock d. As for the valve g, that is at once closed bythe pressure of the
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . Fig. a.—Giffard gun—gas-chamber. trigger is pressed the hammer strikes the extremity^ of the rod/, and, through its impact,thrusts the valve ^ to a distance regulated by the stop e. There then escapes through c acertain quantity of liquefied gas, which expels the projectile that has previously been intro-duced into the barrel through a sort of cock d. As for the valve g, that is at once closed bythe pressure of the liquid. Gun: see Fire-Arms and Ordnance. Gun-Lathe: see Lathes. Metal-Working. GUN, PNEUMATIC. The improvedl pneumatic ordnance designed by John Rapieff isadapted to the firing of projectiles containing high explosives. It consists, as shown in , 2, and 8, of a gun-barrel A that is provided from its breech to a point beyond the trunnions.
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
