vancing tumblers,whichare pressed slowly but firmly against the keybits, which give both the key tumblers, r, andfence tumblers, e, the impress of their own ar-rangement. These motions are effected byabout one-third of the revolution of the keyhandle. Continuing to turn the cam of thedriving wheel…
Patents · Claim · Combination · Tumblers · Key · Scientific American · Patent office · Key pod · Purpose set · Weather strip · Key bits · Purposes set · Driving wheel · Key tumblers · Cross head
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