Sewing – Elements – Presser devices
Patent
1991-10-07
1993-06-22
Crowder, Clifford D.
Sewing
Elements
Presser devices
D05B 2900
Patent
active
052208770
ABSTRACT:
A pressure foot lifter mechanism is installed as an attachment on any sewing machine. In a preferred embodiment, a clamp is attached to the presser foot lifter bar of a sewing machine, and a coil spring is used to bias a cable attached to the clamp in a downward direction. The coil spring extends over and biases the presser foot lifter bar, and thereby the pressure foot, downwardly. The cable passes through a flexible tube removably attached to the outer surface of the machine. The tube extends upwardly from the coil spring, then across the horizontal body of the machine, and then downwardly to a hole in the table top of the machine. A washer or flange is placed over the hole in the table top. The tube which carries the cable is removably attached at several locations to the sewing machine. When pressure is applied to a foot pedal, a cable tension will increase and the end of the cable attached to the pressure foot lifter bar will lift the presser foot from the table. The material to be sewn is then placed under the pressure foot with both hands. When foot pressure is released, the presser foot is lowered due to action of the coil spring.
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Crowder Clifford D.
Lewis Paul C.
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