Power transmission mechanism

Details Power transmission mechanism Power transmission mechanism

1985-03-07

1987-04-14

Braun, Leslie

Machine element or mechanism

Gearing

Directly cooperating gears

744247, 74458, F16H 118

Patent

active

046568840

ABSTRACT:
A power transmission mechanism in which a small rotatable screw thread is arranged symmetrically with a large rotatable screw thread. The pitch and the pitch circle diameter of the large screw thread are the same integer times the pitch and the pitch circle diameter of the small screw thread. The screw thread grooves are connected through ball means and a convenient combination of screw threads provides an input shaft and an output shaft either in parallel or in alignment. This arrangement provides a power transmission mechanism of a compact size and a simple structure with an enhanced ratio of power increase and decrease.

REFERENCES:
patent: 506409 (1893-10-01), Wellman
patent: 896691 (1908-08-01), Collier
patent: 1273556 (1918-07-01), Warriner
patent: 1359853 (1920-01-01), Wilkinson
patent: 1383706 (1921-07-01), Farnum
patent: 2451998 (1948-10-01), Wahlberg et al.
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patent: 3365974 (1968-01-01), Lieberman
patent: 3481215 (1969-12-01), Howell
patent: 3494215 (1970-02-01), Fengler
patent: 3752000 (1973-08-01), Roberts
patent: 3776060 (1973-12-01), Pessen
patent: 3969956 (1976-07-01), Hanslik

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