Machine element or mechanism – Gearing – Toothed gear and recirculated unconnected elements
Patent
1977-02-03
1978-02-28
Gerin, Leonard H.
Machine element or mechanism
Gearing
Toothed gear and recirculated unconnected elements
74190, 7424215R, F16H 700, F16H 1500, F16H 710
Patent
active
040759016
ABSTRACT:
A transmission including a cylindrical drive pulley, a cylindrical driven pulley, an endless belt of a suitable material and a predetermined uniform thickness, the belt being frictionally confined between the drive and driven pulleys and loosely encompassing one of the pulleys, an inner pair of cylindrical positioning pulleys mounted within the endless belt on opposite sides of the encompassed pulley, an outer pair of cylindrical positioning pulleys mounted on the outside of said endless belt on opposite sides of the other pulley, each of the inner and outer pairs of positioning pulleys frictionally confining the endless belt, and means for moving the pairs of positioning pulleys inwardly or outwardly with respect to the interior of the endless belt so as to cause the endless belt to bend partially around one of the drive and driven pulleys such that the inner and outer surfaces of the belt become respectively alternately shortened and lengthened therearound, to thereby serve as an extension of the radius of the partially surrounded pulley for infinitely varying the resultant speed ratio between the drive and driven pulleys within predetermined limits.
REFERENCES:
patent: 716520 (1902-12-01), Cole
patent: 3864986 (1975-02-01), Bochan
patent: 4019397 (1977-04-01), Bochan
General Motors Corporation
Gerin Leonard H.
Moran John P.
LandOfFree
Variable speed friction transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variable speed friction transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable speed friction transmission will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1669409