Marking tool drive system for drawing machines or similar types

Abstract From the Canadian patent

This invention describes improvements made to the working head of a drawing machine with a working surface which carries the strip material on which the machine is to operate. The working head includes a drive system which improves the operative devices for the working tools; the said operative devices are of the electromagnetic type and comprise a winding which almost completely surrounds the working tool incorporated into the electromagnet core. These devices make it possible to move the tool along its own axis, guided by two end bushings; it is also possible to remove it from or put it in contact with the strip material which is placed on the working surface on reception of sig-, nals …