Marking apparatus

Claim 1

IN AN APPARATUS FOR IMPRINTING INTERMITTENTLY ADVANCED SHEET MATERIAL BY PRESSING HATED TYPE AGAINST THE LATTER THROUGH A HOT ROLL LEAF STAMPING TAPE, THE COMBINATION OF SUPPORT MEANS ADAPTED TO BE MOUNTED ADJACENT THE PATH OF TRAVEL OF THE INTERMITTENTLY ADVANCED SHEET MATERIAL, A FIRST PRESSURE FLUID OPERATED CYLINDER CARRIED BY SAID SUPPORT MEANS AND HAVING A PLUNGER MOVABLE PERPENDICULAR TO THE PLANE OF THE SHEET MATERIAL, HEATED TYPE HOLDING MEANS MOUNTED ON SAID PLUNGER FOR MOVEMENT WITH THE LATTER TOWARD AND AWAY FROM THE SHEET MATERIAL, SUPPLY MEANS MOUNTED ON SAID SUPPORT MEANS FOR HOLDING A SUPPLY OF UNUSED STAMPING TAPE, TAKE-UP MEANS MOUNTED ON SAID SUPPORT MEANS FOR RECEIVING THE USED STAMPING TAPE, GUIDE MEANS LEADING THE STAMPING TAPE FROM SAID SUPPLY MEANS TO SAID TAKE-UP MEANS ALONG A PATH THAT INCLUDES A MARKING POSITION BETWEEN SAID TYPE HOLDING MEANS AND THE SHEET MATERIAL, A SECOND PRESSURE FLUID OPERATED CYLINDER CARRIED BY SAID SUPPORT MEANS AND HAVING A RECIPROCABLE PLUNGER, TAPE FEEDING MEANS INCLUDING A SHAFT ROTATABLY CARRIED BY SAID SUPPORT MEANS, TWO ROLLERS ON SAID SHAFT WHICH FRICTIONALLY ENGAGE THE TAPE AT LOCATIONS ALONG THE PATH OF THE LATTER BETWEEN SAID SUPPLY MEANS AND SAID MARKING POSITION AND BETWEEN THE LATTER AND SAID TAKE-UP MEANS, RESPECTIVELY, SO AS TO MOVE THE TAPE ALONG SAID PATH IN RESPONSE TO TURNING OF SAID SHAFT IN ONE DIRECTION, AND DRIVE MEANS CONNECTED WITH SAID PLUNGER OF THE SECOND CYLINDER FOR TURNING SAID SHAFT IN ONLY SAID ONE DIRECTION IN RESPONSE TO RECIPROCATION OF SAID PLUNGER OF THE SECOND CYLINDER, AND MEANS CONTROLLING THE SUPPLYING OF FLUID UNDER PRESSURE TO SAID FIRST AND SECOND CYLINDERS TO CAUSE SAID FIRST CYLINDER TO MOVE SAID HEATED TYPE HOLDING MEANS AWAY FROM THE SHEET MATERIAL DURING EACH ADVANCE OF THE LATTER AND TOWARD THE SHEET MATERIAL WHEN THE LATTER IS AT REST, AND TO CAUSE SAID SECOND CYLINDER TO OPERATE SAID TAPE FEEDING MEANS DURING EACH MOVEMENT OF THE TYPE HOLDING MEANS AWAY FROM THE SHEET MATERIAL.