Power transmission mechanisms

Details Power transmission mechanisms Power transmission mechanisms

1985-10-08

1987-03-24

Herrmann, Allan D.

Machine element or mechanism

Gearing

Directly cooperating gears

74458, 74465, F16H 116, F16H 5522

Patent

active

046515860

ABSTRACT:
A power transmission mechanism having an hourglass worm with a continuous tooth groove. Cooperating with the hourglass worm is a wheel device having a plurality of recesses therein spaced around its circumference with the spacing between the recesses corresponding to a pitch of the continuous tooth groove. A roller is mounted in each of the recesses for rotation in a transverse direction with respect to the circumference of the wheel device and is in meshing engagement with the continuous groove. Each roller is formed from a pair of disc rollers.

REFERENCES:
patent: 908049 (1908-12-01), Teal
patent: 1007584 (1911-10-01), Lord
patent: 1273533 (1918-07-01), Pfahler
patent: 1297238 (1919-03-01), Pfahler
patent: 1470718 (1923-10-01), Forsyth
patent: 1580055 (1926-04-01), Lay
patent: 1844005 (1932-02-01), Chandler
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patent: 2714315 (1955-08-01), Reader et al.
patent: 3495470 (1970-02-01), McCartin
patent: 3597990 (1970-05-01), McCartin
patent: 3608392 (1971-09-01), Gilbert
patent: 3820413 (1974-06-01), Brackett
patent: 4008625 (1977-02-01), Malhotra

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