Improvements in Safety Razors.
Реферат: 29,010. Scharff, E. March 3, [date applied for under Patents Act, A.D. 1901]. Razors.-In safety razors, the blade is pressed on to the frame by a roller n carried at the ends of arms f of bellcrank levers pivoted at the back of the frame c. The ends of the other arms g carry screw-threaded holes in which work set-screws d, which project through the casing. The heads of these screws m abut against the outside of the casing, and, by rotation of the screws, pressure is applied to the blade by the roller n.