Mechanical timing device electronic upgrading means

Abstract From the Canadian patent

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 said coin carrier mechanism; wherein the actuation of the said clock winding lever is caused by a coin placed in the said coin carriage wound into primary contact with alternative abutting cam surfaces such abuttal thereof providing an electrical contact with the said electrical coin sensing mechanism having, at least one compatible contact thereon each contact dedicated to the, denomination …