Thread tapping device rotatable by reciprocating press

Claim 1

A TAPPING ATTACHMENT FOR A PUNCH PRESS OR THE LIKE COMPRISING A TOP PLATE, A BOTTOM PLATE OPPOSITE THE TOP PLATE, MEANS TO RECIPROCATE THE TOP PLATE WITH RESPECT TO THE BOTTOM PLATE, A TOP GEAR BLOCK SECURED TO THE TOP PLATE, A BOTTOM GEAR BLOCK SECURED TO THE BOTTOM PLATE, A GEAR TRAIN CARRIED WITHIN EACH OF THE GEAR BLOCKS, A HELICALLY GROOVED FIRST LEAD SCREW SECURED AT ONE END TO THE TOP GEAR BOX AND EXTENDING THEREFROM, A FIRST HELICALLY SPLINED BUSHING CARRIED WITHIN THE BOTTOM GEAR BOX IN DRIVING ENGAGEMENT WITH THE FIRST LEAD SCREW, A FIRST GEAR WITHIN THE BOTTOM GEAR TRAIN AROUND THE FIRST BUSHING AND SECURED THERETO, A SECOND GEAR WITHIN THE BOTTOM GEAR TRAIN IN MESH WITH SAID FIRST GEAR, A SECOND HELICALLY GROOVED LEAD SCREW SECURED AT ONE END TO THE SECOND GEAR AND EXTENDING OUTWARDLY THEREOF TOWARD THE TOP GEAR BLOCK, A SECOND HELICALLY SPLINED BUSHING WITHIN THE TOP GEAR BLOCK IN DRIVING ENGAGEMENT WITH THE SECOND LEAD SCREW, A THIRD GEAR WITHIN THE TOP GEAR TRAIN AROUND THE SECOND BUSHING AND SECURED THERETO, A FOURTH GEAR WITHIN THE TOP GEAR TRAIN IN MESH WITH THE THIRD GEAR, A THIRD HELICALLY GROOVED LEAD SCREW, SECURED AT ONE END TO THE FOURTH GEAR AND EXTENDING OUTWARDLY THEREOF TOWARD THE BOTTOM GEAR BLOCK, A THIRD HELICALLY SPLINED BUSHING WITHIN THE BOTTOM GEAR BLOCK IN DRIVING ENGAGEMENT WITH THE THIRD LEAD SCREW, A FIFTH GEAR AROUND THE THIRD BUSHING AND SECURED THERETO, AN EXTENSION ON THE BOTTOM GEAR BLOCK, A PINION GEAR MEMBER WITHIN THE EXTENSION IN MESH WITH THE FIFTH GEAR, A TAP RECEIVING CHUCK ASSEMBLY CARRIED BY THE EXTENSION, A CHUCK GEAR IN THE CHUCK ASSEMBLY, A FEED NUT IN SAID CHUCK ASSEMBLY FOR ADVANCING THE CHUCK TOWARD A WORK PART, A SPEED REDUCING GEAR TRAIN INTERCONNECTING THE PINION GEAR MEMBER AND CHUCK GEAR, WHEREBY RAPID RECIPROCATION OF THE TOP AND BOTTOM PLATES TOWARD AND AWAY FROM EACH OTHER WILL BE TRANSLATED IN ROTATION OF THE CHUCK ASSEMBLY AT A SUITABLE TAPPING SPEED.