Pipe-end finishing machine

Claim 1

A PIPE-END FINISHING MACHINE COMPRISING IN COMBINATION, A MANDREL HAVING AN AXIS OF REVOLUTION, A PLURALITY OF APERTURES DISPOSED RADIALLY AND LONGITUDINALLY SUBSTANTIALLY ADJACENT ONE END OF SAID MANDREL, AN EXTERNALLY THREADED PORTION DISPOSED ADJACENT THE OTHER END OF SAID MANDREL, A LIKE PLURALITY OF PINS RESPECTIVELY DISPOSED FOR RADIAL SLIDABLE MOVEMENT WITHIN THE APERTURES OF SAID MANDREL, RESILIENT MEANS CONNECTED BETWEEN EACH OF SAID PINS AND SAID MANDREL FOR URGING SAID PINS TOWARD A RECESSED POSITON, A SHAFT ROTATABLY MOUNTED WITHIN SAID MANDREL HAVING A HEXAGONAL PORTION AT ONE END THEREOF, A STUD HAVING OPPOSITELY THREADED ENDS WITH ONE END THEREOF CONNECTED TO THE OTHER END OF SAID SHAFT FOR ROTATION THEREWITH, A PAIR OF RAMPED SLIDES RESPECTIVELY MOUNTED ON THE OPPOSITELY THREADED ENDS OF SAID STUD FOR THREADED ENGRAGEMENT THEREWITH AND IN SLIDABLE CONTACT WITH THE AFORESAID PINS FOR ADJUSTABLY URGING SAME IN AN OUTWARDLY RADIAL DIRECTION IN OPPOSITION WITH SAID RESILIENT PIN URGING MEANS, A TOOL HEAD ROTATABLY AND SLIDABLY MOUNTED ON SAID MANDREL, AT LEAST ONE TOOL BIT ATTACHED TO ONE END OF SAID TOOL HEAD, A WORM GEAR MOUNTED ON AND SURROUNDING SAID TOOL HEAD, KEY MEANS INTERCONNECTING SAID WORM GEAR AND SAID TOOL HEAD, A WORM DISPOSED IN DRIVING ENGAGEMENT WITH SAID WORM GEAR, A HOUSING ROTATABLY MOUNTED ON SAID TOOL HEAD, AN ADJUSTMENT NUT MEANS CONNECTED TO SAID TOOL HEAD AND IN THREADED ENGAGEMENT WITH THE THREADED PORTION OF SAID MANDREL FOR MOVING SAID TOOL HEAD ALONG A PORTION OF THE LENGTH OF SAID MANDREL WHEN TURNED ON SAID THREADED PORTION, AND MEANS INTERCONNECTING SAID HOUSING AND THE AFORESAID MANDREL FOR THE HOLDING THEREOF IN PREDETERMINED FIXED IN RELATIVE POSITIONS.