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US 3,936,910 AGranted
Carding method and machine
AssigneeUnitika Ltd.
InventorsToyozo Tanaka, Shigeyoshi Kubota, Masao Kunieda
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AssigneeUnitika Ltd.
InventorsToyozo Tanaka, Shigeyoshi Kubota, Masao Kunieda
Estimating the term…
A carding method in which the rotary flats of a carding machine are driven intermittently so that each time the flats are driven only a portion (1/6 to 1/4) of the flats opposed to the cylinder of the machine are replaced by fresh flats, thereby decreasing the amount of good fibers in the waste, particularly when carding synthetic fibers. The carding machine is provided with a solenoid clutch in the drive mechanism for the rotary flats and the flat cleaning means, and with a timer for controlling the clutch so that the flats can be intermittently driven at desired drive and stop intervals. For carding polyester fiber, the drive interval may be enough to replace one-fifth of the flats opposed to the cylinder of the machine with fresh flats, and the stop interval may be as much as sixty minutes.
A carding method using a carding machine having a cylinder and a loop of rotary flats, a portion of which loop is opposed to the cylinder, comprising intermittently driving the flats with repetitive drive and stop intervals, and feeding a unit length of flats on each drive interval less than the length of said portion of the loop of flats.
In a carding machine having a cylinder, a loop of rotary flats, and means for transmitting power to the flats, the improvement wherein said power transmitting means includes a clutch, and means for engaging and disengaging said clutch for timed intervals thereby intermittently driving the flats.
Dependencies are inferred from the claim text.