Advancing material of indeterminate length – By orbitally traveling material-engaging surface – With drive means
Patent
1983-10-21
1986-11-25
Hornsby, Harvey C.
Advancing material of indeterminate length
By orbitally traveling material-engaging surface
With drive means
226154, 226183, 242 54A, 192 56R, B65H 1722
Patent
active
046244000
ABSTRACT:
An elongated flexible probe carrier is wound on a take-up reel and is fed therefrom around a feed pulley, being held in frictional engagement with the feed pulley by a plurality of idler rollers on a pivotal support arm. The feed pulley and the take-up reel are both rotatably driven from a single drive motor, respectively through two electromagnetic clutches. The take-up reel clutch is directly coupled to the motor while the feed pulley clutch is coupled to the motor either through a belt and pulley arrangement for rotation in the same direction as the motor or through a gear train for rotation in the opposite direction from the motor. A reversible motor is used with the belt and pulley type coupling. Control means are provided for selectively varying the magnetic coupling forces exerted by the two clutches for control of the feeding and take-up of the carrier without slippage. A position detecting device is coupled to the feed pulley for measuring the movement thereof.
REFERENCES:
patent: 3396888 (1968-08-01), Rygiol
patent: 3506176 (1970-04-01), Brown
patent: 3585076 (1971-06-01), Prange
patent: 3777964 (1973-12-01), Kruner et al.
patent: 4160451 (1979-07-01), Chittenden
patent: 4293060 (1981-10-01), Miller
patent: 4449622 (1984-05-01), Okano et al.
Hornsby Harvey C.
Satina D. M.
Westinghouse Electric Corp.
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