Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 954
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 Dis made of the form of the segment of a helix, so inclined that when the sliding breech-pin is pushedforward, after… … vfi>
Mechanical engineering
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