Extractor tool

Claim 1

A TOOL FOR EXTRACTING BUSHINGS OR THE LIKE, COMPRISING AN OPEN-ENDED HOUSING, A LONGITUDINALLY SLIDABLE EXTRACTOR BAR COAXIALLY DISPOSED IN SAID HOUSING, A NORMALLY CONTRACTED, RADIALLY EXPANDABLE GRIPPING ELEMENT CARRIED BY SAID EXTRACTOR BAR AND PROJECTABLE AND RETRACTABLE BY THE LATTER THROUGH THE OPEN END OF SAID HOUSING, A COAXIAL LONGITUDINAL BORE EXTENDING THROUGH THE EXTRACTOR BAR AND GRIPPING ELEMENT, A DRAWBAR SLIDABLE IN SAID BORE, WEDGE MEANS ON SAID DRAWBAR OPERABLE UPON LONGITUDINAL MOVEMENT THEREOF RELATIVE TO SAID EXTRACTOR BAR, TO EXPAND SAID GRIPPING ELEMENT WITHIN A BUSHING OR THE LIKE LOCATED ADJACENT THE OPEN END OF SAID HOUSING, A CROSSHEAD CONNECTED TO AND EXTENDING TRANSVERSELY OF SAID DRAWBAR, A YOKE PIVOTALLY CONNECTED TO SAID EXTRACTOR BAR, AN OPERATING LEVER FIXED TO SAID YOKE, FIRST CAM MEANS FIXED TO SAID YOKE AND ENGAGEABLE WITH SAID CROSSHEAD FOR SHIFTING SAID DRAWBAR WITHIN SAID EXTRACTOR BAR TO EXPAND THE GRIPPING END THEREOF, SECOND CAM MEANS FIXED TO SAID YOKE AND ENGAGEABLE WITH A PORTION OF SAID HOUSING TO SHIFT SAID EXTRACTOR BAR WITHIN THE HOUSING, THE REPECTIVE CAM MEANS BEING SEQUENTIALLY OPERABLE UPON THE ROTATION OF SAID YOKE ABOUT ITS PIVOT, AND SPRING MEANS OPPOSING THE ACTION OF SAID CAM MEANS FOR EFFECTING THE RETURN MOVEMENT OF SAID EXTRACTOR BAR AND DRAWBAR.