Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Patent
1989-03-30
1990-07-10
Smith, James G.
Tools
Wrench, screwdriver, or driver therefor
Handle clutched to head
81 583, B25B 1346
Patent
active
049399616
ABSTRACT:
The present invention provides a reversible wrench which comprises a first gear face disc having a single side profile teeth on one of its flat sides and a square central hole, and rotatably mounted in one end of the wrench body; a second gear face disc having a symmetrical single side profile teeth on one of its flat sides and a central hole which is concentrically disposed in the first disc and meshed with the first disc by the depressing of an undulated spring washer or compression spring which is axially bounded between the discs and the wrench body; a driving stud which is slidably received through the square hole of the first disc, the hole of the second disc, and the spring washer, with at least one end thereof projecting from one of the opposite sides of the wrench body; in which the second gear face disc being non-rotatably connected to the wrench body.
REFERENCES:
patent: Re28037 (1974-06-01), LaPointe
patent: 145399 (1873-12-01), Colbert
patent: 249003 (1881-11-01), Cherry
patent: 1321005 (1919-11-01), Bowman
patent: 1628467 (1927-05-01), Mandl
patent: 1644079 (1927-10-01), O'Neill
patent: 1873472 (1932-08-01), Pfauser
patent: 2667801 (1954-02-01), Eaves
patent: 3466953 (1969-09-01), Gegg
patent: 3640158 (1972-02-01), Myers
patent: 4408504 (1983-10-01), Dobosh
patent: 4475420 (1984-10-01), Atkinson et al.
patent: 4603606 (1986-08-01), Headen
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