Adjustable ratchet wrench

Details Adjustable ratchet wrench Adjustable ratchet wrench

1977-04-11

1978-09-12

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

81163, B25B 1346

Patent

active

041127927

ABSTRACT:
There is disclosed an adjustable ratchet wrench including a disk member with ratchet teeth on its periphery and hub portions of reduced diameter on each side. A centrally disposed rectangular opening is provided in which a double acting lead screw is mounted. A pair of jaws are threadedly mounted on the lead screw for movement toward or away from each other dependent upon the direction of rotation of the lead screw. A two piece body is provided which defines an elongated handle and two parallel, spaced apart members which terminate in a generally circular, enlarged ratchet holding head having circular openings in which the hub portions of the ratchet disk are received. A pawl is provided for controlling the direction of ratchet movement.

REFERENCES:
patent: 275079 (1883-04-01), Reichling et al.
patent: 295797 (1884-03-01), Osborn
patent: 600158 (1898-03-01), Miller
patent: 1135929 (1915-04-01), Sands
patent: 4016782 (1977-04-01), Guimarin

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