Abstract: An electronic upgrading mechanism for upgrading a mechanical timing device comprising an electrical coin sensing mechanism which is installed abutting a coin carrier mechanism of a mechanical timing device for detection of actuation of a clock winding lever in communication with a coin carriage of the coin carrier mechanism; wherein the actuation of the clock winding lever is caused by a coin placed in the coin carriage wound into primary contact with alternative abutting cam surfaces such abuttal thereof providing an electrical contact with the electrical coin sensing mechanism, having at least one compatible contact thereon, each contact dedicated to the denomination of a coin; wherein the electrical coin sensing mechanism communicates with a programmable electronic digital timing control and display device which is installed within an upgraded mechanical timing device thereby replacing clocking and flagging mechanisms of the mechanical timing device.

Abstract: A manual self-inking stamping device including a base for contacting material to be stamped, such base having a recess in which a self-inking stamp pad is supported for vertical movement with respect thereto. A depressable handle threadedly engages a shaft extending through the base from the stamp pad, and a movable member is disposed about the shaft for selective meshing engagement with the base at one end of the movable member and for engagement with the handle at the other end to lock the handle against rotational movement about the shaft. A spring disposed intermediately of the handle and the movable member urges the handle and the stamp pad upwardly and urges the movable member into engagement with the base. The handle may be depressed against the biasing force of the spring to bring the stamp pad into contact with the material to be stamped, the movable member acting as a stop to restrict the vertical depression of the handle.