Memory timing disc structure with adjustable pins which are set and resettable by automatic means during continuous cycle operation

Claim 1

A mechanical memory device which is automatically settable and re-settable in response to electrical signals, comprising, in combination: a disc rotatable about an axis and having a plurality of through holes spaced in a circle about said axis adjacent the periphery of said disc; a plurality of pins slidably mounted in said holes to allow sliding movement of said pins substantially parallel to said axis, each of said pins having a widened portion on opposite sides of the disc to limit motion of each pin to first and second limit positions representing a pair of binary conditions; motor means responsive to successive electrical signals for rotating said disc through discrete successive angular increments corresponding to the angular spacing of successive holes around said disc to position said pins at successive angular stations around said axis; solenoid means responsive to electrical signals for selectively moving pins successively located at a first station around said axis to said first limit position; switch means positioned to be engaged and operated by each successive pin which is situated at its first limit position as it arrives at a second station around said axis for providing successive electrical signals; and reset means situated at a third station around said axis for automatically returning successive pins which arrive at said third station in their first limit positions to their second limit positions.