ADJUSTABLE BLOCKING MEANS FOR TYPING AND PRINTING MECHANISMS

摘要

For typewriters and similar machines in which a blocking means cooperates with the type actuating means for preventing the simultaneous printing of more than one type, the blocking means is a member such as a ball block mounted on a lever for pivoting movement to vary the position of the blocking member relative to the type actuating means during the normal operation of the machine. A ratchet is provided to fix the blocking member in the desired position.