Reversible socket wrench

Details Reversible socket wrench Reversible socket wrench

1975-10-23

1977-01-25

Herrmann, Allan D.

192 clutches and power-stop control

Clutches

Automatic

81 591, F16D 4108

Patent

active

040046664

ABSTRACT:
A reversible wrench has a handle integral with a ring shaped head. A reversing mechanism in the head includes a cup shaped member rotatable on a cam block carrying a tool holder. A rotatable control plate on the head has a depending pin engaged in a slot in an end wall of the cup shaped member. The cam block has an upstanding pin engaged in another slot in the end wall and contacting a leaf spring carried by the control plate. Slots in a cylindrical wall of the cup shaped member carry rollers adjacent the cam faces of the cam block. A finger grip on the control plate facilitates rotation of the control plate and rotation of the cup shaped member and rollers on the cam block to effect reversing action between the wrench head and the tool holder.

REFERENCES:
patent: 1859600 (1932-05-01), Prettyman
patent: 2707540 (1955-05-01), Morris
patent: 2722149 (1955-11-01), Henley
patent: 3362267 (1968-01-01), Rozmus

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