US PATENT SUBCLASS 112 / 449-- .~.~.~.~.~ And means to change, without operator intervention, stitch width, or material feed

US PATENT SUBCLASS 112 / 449
.~.~.~.~.~ And means to change, without operator intervention, 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}
446	DF	.~.~.~ Closed pattern sewing (e.g., buttonhole) {2}
448	DF	.~.~.~.~ Having cam actuation of needle or material feed {1}
449		.~.~.~.~.~ And means to change, without operator intervention, stitch width, or material feed

DEFINITION

Classification: 112/449

And means to change, without operator intervention, stitch width or material feed:

(under subclass 448) Device wherein a human attendant can preset elements of the device to cause the amplitude of lateral needle movement or the amount of material transported past the needle per needle reciprocation to vary as the device operates without further input from the human attendant.

(1) Note. This subclass is intended to include a device which can be preset by a human attendant to produce rectangular buttonholes wherein the device sews at least parts of two sides of the buttonhole without further input by the attendant.