Infinitely variable ratio drive mechanism

Details Infinitely variable ratio drive mechanism Infinitely variable ratio drive mechanism

1986-06-26

1987-10-27

Levy, Stuart S.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

74121, 74834, 242 673R, 242 754, B65H 2004, F16H 2920, F16H 3508

Patent

active

047024283

ABSTRACT:
A variable ratio drive mechanism comprises a reciprocable input member having a toothing, an output gear and an intermediate pivoted gear meshing with the toothing of said input member and said output gear to effect a driving connection between the input member and the output gear. An adjustment device is provided for selectably positioning the pivot of said intermediate gear whereby the distance between the pivot of the intermediate gear and the point of meshing engagement of the intermediate gear and the output gear can be infinitely varied. Preferably the pivot can be moved through a mid-position to positions either side of the mid-position.

REFERENCES:
patent: 883538 (1908-03-01), Graser
patent: 1187848 (1916-06-01), Landis
patent: 1189309 (1916-07-01), Taylor
patent: 2262915 (1941-11-01), Bobst
patent: 2765022 (1956-10-01), Bergevin
patent: 3076368 (1963-02-01), Groll
patent: 3092347 (1963-06-01), Kingsley
patent: 3371883 (1968-03-01), Hoffman et al.
patent: 3482800 (1969-12-01), Barnett et al.
patent: 3517872 (1970-06-01), Chmela
patent: 3650449 (1972-03-01), Mundus
patent: 4065043 (1977-12-01), Ohashi

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