Mechanism for maintaining constant tension

Details Mechanism for maintaining constant tension Mechanism for maintaining constant tension

1975-03-31

1977-07-12

Knowles, Allen N.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

B65D 148

Patent

active

040349632

ABSTRACT:
A constant tension winching mechanism which has a friction clutch interposed between the drive member and the drum of the winching mechanism. A conduit system is connected to the clutch for directing a cooling media thereinto and therefrom so the clutch will not be damaged by the heat generated by continuous slippage. A variable controller is provided to control the degree of engagement between the friction elements within the clutch, which controller may be either manually or automatically operated. The cable which leads from the winding drum is provided with a cable tension sensing mechanism which will operate the variable controller to maintain a constant tension on the cable at all times when operated by an automatic control. An actuator line is shown which leads to the clutch to vary the engagement of the friction elements within the clutch.

REFERENCES:
patent: 2303847 (1942-12-01), Lamond
patent: 2823896 (1958-02-01), Hood
patent: 2956650 (1960-10-01), Wilson
patent: 2966221 (1960-12-01), Kinney
patent: 3373972 (1968-03-01), Peterson

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