Tensioning apparatus

Details Tensioning apparatus Tensioning apparatus

1977-03-23

1979-03-20

Christian, Leonard D.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

352156, G03B 104, G11B 1532

Patent

active

041450167

ABSTRACT:
A mechanism by which more than one torsion spring can be serially coupled to a member to impart a torque thereto equivalent to that from a single spring having the same number of turns as the total turns of the coupled springs. The springs to be coupled are connected at one end to respective storage shafts which are mounted to a free floating coupling arm. The coupling arm rotates about a shaft coaxial with the member to which the other ends of the springs are attached. In a capstan driven web system having a take-up reel and a supply reel, two sets of serially coupled negator springs are utilized to maintain proper web tension during driving of the web system.

REFERENCES:
patent: 2996264 (1961-08-01), Bygdnes
patent: 3252669 (1966-05-01), Geri
patent: 3679215 (1972-07-01), Roberts
patent: 3716205 (1973-02-01), Geuder

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