US Patent: 1,434,992
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| Speed Varying Transmission
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Patentee:
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| Harry C. Clay (exact or similar names) - Columbus, Bartholomew County, IN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 31, 1921 |
| Granted: |
Nov. 07, 1922 |
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Joel Havens
"Vintage Machinery" entry for Reeves Pulley Co.
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Description: |
| Abstract:
In that type of speed varying transmission in which there are two pairs of co-acting cones supporting a V-shaped belt, the cones of the two pairs being simultaneously shifted in opposite directions in order to vary the radii of contact between the belt and cone pairs, it has heretofore been customary for many years to control the position of the cone elements of each pair by means of thrust bearings acting upon the ends of the hubs of the cones and, because an apparatus of this kind must ordinarily be as compact as possible, the hubs of the cone elements have been made comparatively short. As a consequence, owing to the heavy wedging force exerted by the belt upon the cones, considerable difficulty has been experienced in maintaining proper thrust bearings.
Claim:
In a speed varying transmission, the combination with belt-receiving cone pairs having extended hubs, and shafts upon -which said cone pairs are splined, of a thrust sleeve journaled upon said extended hub and having an axial extent substantially coextensive with. the cone hub, and a bearing-receiving cup, within the cup of sleeve, a controlling lever, and a yoke interposed between said lever and sleeve intermediate the length of the sleeve, said yoke having a rocking engagement with the sleeve at diametrically opposite points on a line substantially parallel with the plane of the lever, and a rocking engagement with the lever at diametrically opposite points on a line substantially at right angles to the plane of the lever. |
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