Splined socket member for wrenches

Claim 1

A WRENCH SOCKET MEMBER HAVING AN OPENING EXTENDING AXIALLY THERETHROUGH, THE FRONT PORTION OF THE OPENING HAVING A POLYGONAL RECESS TO RECEIVE A DRIVEN NUT OR BOLT, THE REAR PORTION OF THE OPENING BEING SURROUNDED BY A SERIES OF INWARDLY PROJECTING LONGITUDINAL SPLINES SEPARATED BY LONGITUDINAL GROOVES, SAID SPLINES BEING ADAPTED TO BE DRIVEN BY A ROTARY SHAFT, THE SOCKET MEMBER HAVING A CENTRAL ANNULAR RECESS IN FRONT OF THE SPLINES, EACH SPLINE HAVING A LONGITUDINAL CREST AND HAVING A REAR SHOULDER DIVERGING OUTWARD FROM SAID CREST TO THE REAR EXTREMITY OF THE SOCKET MEMBER AND HAVING AN INCLINED FRONT SHOULDER DIVERGING FORWARD FROM THE CREST TOWARD THE CENTRAL ANNULAR RECESS, THE CRESTS FORMING SEGMENTS OF A CYLINDRICAL SURFACE AND THE SHOULDERS FORMING RESPECTIVELY SEGMENTS OF A FRONT AND A REAR FRUSTO-CONICAL SURFACE, SAID CYLINDRICAL AND FRUSTO-CONICAL SURFACES BEING BROKEN UP BY THE LONGITUDINAL GROOVES, SAID GROOVES EXTENDING FROM THE REAR EXTREMITY OF THE SOCKET MEMBER TO THE CENTRAL ANNULAR RECESS, THE SPACE BETWEEN THE INCLINED FRONT SHOULDERS AND THE CENTRAL ANNULAR RECESS BEING UNOBSTRUCTED TO PERMIT THE RECEPTION OF A LOCKING DEVICE BETWEEN THE CENTRAL ANNULAR RECESS AND THE INCLINED FRONT SHOULDER OF ANY SELECTED ONE OF THE SPLINES, WHEREBY THE SELECTED FRONT SHOULDER MAY PROVIDE A THRUST SUSTAINING MEANS TO LIMIT FORWARD MOVEMENT OF THE SOCKET MEMBER RELATIVE TO THE SHAFT.