. The railroad and engineering journal . of the way, entirely exposingthe powder-chamber and bore. When shoved home it issecured by a latch-hook. The De Bange gas check is stalk, secured at the rear, passes through the breech-block and has a mushroom-shaped head projecting intothe bore. Around the neck of the stalk and just under thehead of this mushroom is a collar of asbestos and tallow,secured in a cotton cover and supported in place by twoconvex tin guards. gun is fired the mushroomhead is pressed back upon the asbestos collar and forcesit against the walls of the bore. An
. The railroad and engineering journal . of the way, entirely exposingthe powder-chamber and bore. When shoved home it issecured by a latch-hook. The De Bange gas check is stalk, secured at the rear, passes through the breech-block and has a mushroom-shaped head projecting intothe bore. Around the neck of the stalk and just under thehead of this mushroom is a collar of asbestos and tallow,secured in a cotton cover and supported in place by twoconvex tin guards. gun is fired the mushroomhead is pressed back upon the asbestos collar and forcesit against the walls of the bore. An obturating primer, asin the other system, cuts off escape of gas by the system is shown in fig. 5. In comparing these two systems of fermature one can-not but believe that the Krupp system is by far the betterone. In it the tulje or Ijody of the gun is not called uponto bear any of the longitudinal strain. The enormousbackward thrust of the powder-gases is taken up by tiieheavy jncket nnd carried dirprr lo ilip trunnions. The. The French Fermature.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
