Tools – Wrench – screwdriver – or driver therefor – Sliding jaw – cam-closing
Patent
1992-12-11
1994-12-27
Smith, James G.
Tools
Wrench, screwdriver, or driver therefor
Sliding jaw, cam-closing
279 65, 279 74, B25B 1312
Patent
active
053754891
ABSTRACT:
An automatically adjustable socket transferring torque a range of bolt heads sizes in either direction comprises a pair of jaws slidable angled to a center cylinder and urged outward to a receiving position so that when the socket is set upon a bolt head the bolt head impresses the jaws towards the center cylinder, angularly so that the jaws maintain a parallel orientation to the bolt head faces. An upper cylinder and a lower cylinder surrounding the center cylinder each having complementary double arch rims interact as torque is applied to the upper cylinder, first to separate the two cylinders the bottom cylinder further impressing the jaws upon the bolt head until the jaws are maximally closed upon the bolt head the double arch rims then providing a torque transfer means from the upper cylinder to the lower cylinder. The lower cylinder transfers torque to the jaws through torque transfer surfaces to the jaws tangential to the bolt head. The invention also contemplates adapting jaws gripping surfaces to transfer torque to other configurations of objects to be torqued and adapting the socket to different sources of torque.
REFERENCES:
patent: 1155662 (1915-10-01), Kleisteuber
patent: 2476874 (1949-07-01), Johansson
patent: 2565212 (1951-08-01), Drazick
patent: 2599026 (1952-06-01), Strayer
patent: 2764050 (1956-09-01), Leibowitz
patent: 3373639 (1968-03-01), Van Dalen et al.
patent: 3719110 (1973-03-01), LaPointe
patent: 4213355 (1980-07-01), Colvin
patent: 4235134 (1980-11-01), McLendon
patent: 4374481 (1983-02-01), Brodie
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