US PATENT SUBCLASS 112 / 462-- .~.~.~.~.~ And fine adjustment of stitch width or material feed

US PATENT SUBCLASS 112 / 462
.~.~.~.~.~ And fine adjustment of stitch width or material feed

Current as of: June, 1999
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112 /	HD	SEWING

154	DF	STITCH FORMING {17}
157	DF	.~ Zigzag {3}
443	DF	.~.~ Vibrating needle {9}
459	DF	.~.~.~ Having cam actuation of needle or material feed {4}
461	DF	.~.~.~.~ And specified material feed {2}
462		.~.~.~.~.~ And fine adjustment of stitch width or material feed

DEFINITION

Classification: 112/462

And fine adjustment of stitch width or material feed:

(under subclass 461) Device further including means by which the amplitude of needle oscillation or the rate of material transport can be varied independently of the first element

cam surface.

(1) Note. Means for adjusting the stitch width are usually similar in structure to means for adjusting the material feed; therefore, both means are included in this subclass.

(2) Note. Devices wherein the only available adjustment of stitch width or material feed results in the elimination of needle shifting or material transport are not included in this subclass.