Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 944
tube D. F is a projecting piece of the breech-pin, to guide the said pin when the capY is off and the pin put in the tube, also to guide it back and forth. The forward end H of the tube I)is made of the form of the segment of a helix, so inclined that when the sliding breech-pin is pushedforward,… … recess, will aid the thread in forcing in the breech-pin, and, during the discharge, will aid the screw-thread in resisting the recoil. In this way the breech-pin is held firmly in its place during the dischargeof the piece—a very important combination indeed. The forward end of the breech-pin is a…
Mechanical engineering · Mechanics · Engineering
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