Mechanical transfer

Claim 1

A MECHANICAL TRANSFER MECHANISM COMPRISING, ARM MEANS PIVOTALLY MOUNTED AT ONE END FOR MOVEMENT ABOUT A FIRST AXIS, CRANK MEANS FOR SELECTIVELY PIVOTING SAID ARM MEANS, TRANSFER BAR MEANS SLIDABLY DISPOSED FOR LONGITUDINAL RECIPROCATING MOVEMENT RELATIVE TO SAID FIRST AXIS AND ADAPTED TO TRANSFER WORKPIECES ASSOCIATED THEREWITH IN ONE LONGITUDINAL DIRECTION OF MOVEMENT, MEANS PIVOTALLY AND SLIDABLY INTERCONNECTING SAID ARM MEANS AND SAID TRANSFER BAR MEANS, MEANS INCLUDING MULTI-SPEED DRIVE MEANS CONNECTED TO SAID CRANK MEANS AND HAVING ROTATABLE OUTPUT MEANS FOR BIASING SAID BAR MEANS AT A PRESELECTED SPEED FOR A PREDETERMINED PORTION OF THE OPERATIONAL CYCLE OF THE MECHANISM AND AT A DIFFERENT PRESELECTED SPEED FOR ANOTHER PORTION OF SAID CYCLE, AND MEANS FOR CONTROLLING SAID DRIVE MEANS IN RESPONSE TO POSITIONING OF SAID ARM MEANS TO REDUCE THE SPEED OF SAID DRIVE MEANS AFTER A PREDETERMINED ANGULARLY MOVEMENT OF SAID OUTPUT MEANS LESS THAN 180* AND TO STOP AND DRIVE MEANS AFTER A PREDETERMINED ANGULAR MOVEMENT OF SAID OUTPUT MEANS SUBSTANTIALLY EQUAL TO 180*, WHEREBY SAID TRANSFER BAR MEANS IS RECIPROCATED IN A MANNER WHEREIN DURING EACH CYCLE, THE WORKPIECES ARE TRANSFERRED AT A RELATIVELY FAST RATE AND THE THEREAFTER TRANSFERRED AT A RELATIVELY SLOW RATE IN ORDER TO MINIMIZE MOMENTUM OF MOVEMENT OF THE WORKPIECES AND PROVIDE FOR ACCURATE POSITIONING THEREOF AT THE END OF EACH OF SAID CYCLES.