Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 383
FIRE-ESCAPES. 363 mer of the arm entirely within the lock-frame, so that no external force whatever can be ap-plied to it; and, second, by so arranging the trigger that it can not be pulled except at theinstant of deliberate firing, and only by this means. The Colt Cartridge-Pack, illustratedin…
Mechanical engineering
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