SETTING CARRIAGE RETURN MECHANISM

摘要

A device for the step-by-step motion of a setting carriage of a calculating machine operated in the course of a division operation. A first bell crank is mounted on a stationary shaft for rotation by a rod for operating the machine. The shaft loosely extends through an elongated slot in a second bell crank having one arm operably connected to a swingable arm of the first bell crank and connected by a tension spring to a machine frame and another arm swingable into engagement with one of stops on the carriage. The spring biases the second bell crank so that the latter, when actuated by said first bell crank, is first rotated about the stationary shaft until said another arm engages and depresses one of the stops and then is moved linearly to shift the carriage a step.