Endless belt power transmission systems or components – Pulley with belt-receiving groove formed by drive faces on... – Adjusted by power from pulley drive train
Patent
1977-08-09
1981-06-23
O'Connor, Daniel J.
Endless belt power transmission systems or components
Pulley with belt-receiving groove formed by drive faces on...
Adjusted by power from pulley drive train
474 19, 474 43, 474171, F16H 5552
Patent
active
042742951
ABSTRACT:
A variable ratio belt drive of the type in which each pulley has an axially movable pulley half for varying the effective drive diameter and speed ratio in a continuous, stepless manner. The drive includes a primary control assembly in one pulley having a threaded interconnection between the drive shaft and one of the pulley halves for effecting a change in the drive diameter upon application of a brake band to a collar mounting the pulley half. In one preferred embodiment, two collars and two brake bands are provided while in another, only a single band and collar is used. The other pulley is provided with a secondary control assembly which automatically responds to the primary control assembly and preferably includes cam means for precluding belt slippage.
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Baker Dorsey L.
O'Connor Daniel J.
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