Tools – Wrench – screwdriver – or driver therefor – Machine
Patent
1998-11-30
2000-03-14
Eley, Timothy V.
Tools
Wrench, screwdriver, or driver therefor
Machine
81 5714, 81 60, B25B 1700
Patent
active
060357460
ABSTRACT:
A cartridge includes two stems rotatably received in a housing and each having a gear extended inward of the housing. A gear transmission device is coupled between the gears of the stems for allowing one of the stems to be driven by the other stem with a greater speed and the other stem to be driven with a greater torque. The gear transmission device includes three or more gear members each having two gear portions of different sizes for engaging with the gears of the stems. A ratchet mechanism is disposed in the housing for controlling driving directions between the stems.
REFERENCES:
patent: 5406866 (1995-04-01), Badiali
Berry Jr. Willie
Eley Timothy V.
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