Abstract: A machine and method for knurling an end portion of a cylindrical workpiece including a hypodermic needle or biopsy needle. The machine includes a base to which a reciprocating mechanism and a serrated block are attached. A pressure bar is positioned above the base and has a second serrated block attached thereto. The pressure bar is reciprocated back and forth, each movement comprising a stroke. A pair of lobes are attached to the top surface of the pressure bar. A pair of roller blocks are also attached to the base, each roller block having a rectangular opening and a roller located therein. The pressure bar passes through the rectangular openings. As the pressure bar is reciprocated back and forth and the lobes come into contact with the rollers, the pressure bar is biased toward the base whereby a knurl is formed in a workpiece placed between the two serrated blocks. A method for knurling an end portion of a cylindrical workpiece is also disclosed.

Abstract: A golf club has a normal address position when the user addresses a ball, and includes a shaft, a hosel mounted on the lower end of the shaft and a golf club head mounted on the hosel for pivotal movement about an axis which is generally horizontal when the club is in the address position. An eccentric cam member is mounted on the hosel for rotation between first, second and third angular positions, and a recess is formed in the head and adjacent the cam member and a lever is operative to move the club head toward and away from the hosel wherein said cam member is movable into and out of the recess, the rotary portion of the cam member in the first and third positions causing said head to pivot into loft angles above and below a nominal loft angle when the cam member is in its second position between first, second and third loft angles as the adjustment sleeve is moved between its first, second and third positions.