Ratchet tool having open-ended jaws

Details Ratchet tool having open-ended jaws Ratchet tool having open-ended jaws

1987-07-20

1988-09-13

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

81418, 81 905, B25B 1352

Patent

active

047700700

ABSTRACT:
A tool having a pair of open-ended jaws with spaced confronting jaw faces and a support for the jaws, wherein each jaw comprises a continuous loop of chained links movably mounted on a plurality of rotatable rollers, said rollers being floatingly mounted on said support, each of said loops having a substantially straight segment that is spaced from and confronts the straight segment of the other of said loops, each link having a tread on the outer side of said loop, which tread aligns with the treads of the other links in said straight segments to constitute the confronting face of said jaw, and a ratchet means mounted on said support and adapted to push one of said loops to move in only one direction around its supporting rollers.

REFERENCES:
patent: 750440 (1904-01-01), Downing
patent: 768146 (1904-08-01), Reams
patent: 1675748 (1928-07-01), Bunker
patent: 1760167 (1930-05-01), Palmer
patent: 2353642 (1944-07-01), Buice
patent: 2862690 (1958-12-01), Mason

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