Machines for tapping nuts
AssigneeWestlane Industries, Inc.
InventorGeorge A. Harrow
Life of this patent
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Abstract
A nut tapper comprises a pusher for pushing blanks onto a rotating tap. The pusher is urged towards the tap by a pneumatic piston and cylinder unit and the speed of approach of the pusher towards the tap is limited by a cam and follower mechanism. The pressure in the piston and cylinder unit can be adjusted to vary the force exerted on a blank by the pusher. The piston and cylinder unit and the cam and follower mechanism are disposed together below the pusher and tap.
Claims4
A nut tapping machine comprising a rotary tap, a reciprocating pusher in line with said tap, means for feeding a nut to a position between and in line with said tap and pusher, a fluid actuated piston and cylinder unit, said piston having one end connected to said pusher, a rotary cam driven in synchronization with said tap, a cam follower carried by said piston and engaging said cam, said piston acting under fluid pressure supplied thereto in a direction to cause said pusher to advance toward said tap to force a nut onto and along said tap while said cam follower engages said cam whereby to limit the speed of movement of the pusher toward the tap to a speed determined by the profile of the cam.
Dependencies are inferred from the claim text.