High-torque open-end wrench

Details High-torque open-end wrench High-torque open-end wrench

1977-08-29

1978-12-19

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Rigid jaws

81 90B, 81180B, B25B 1302, B25B 1358

Patent

active

041300327

ABSTRACT:
A wrench usable where limited access normally requires an open-end wrench, but which has substantially the high-torque capacity and small radial clearance characteristics of a closed-end wrench. The wrench includes a sleeve forming a nut-engageable socket with a gap in its side, and an adaptor forming a socket with a gap in its side, the adaptor closely surrounding the sleeve and extending across the gap in the sleeve. The sleeve and adaptor have surfaces that become fully engaged when a wrench handle is applied to the adaptor to turn it so as to tighten a nut engaged by the sleeve.

REFERENCES:
patent: 2655827 (1953-10-01), Johnson
patent: 2801561 (1957-08-01), Bonner
patent: 4027558 (1977-06-01), Fish

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