The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 1976
Filed:
May. 21, 1975
John W Wurst, Dover, NJ (US);
Stephen A Garron, Elizabeth, NJ (US);
The Singer Company, New York, NY (US);
Abstract
A sewing machine is disclosed in which the pattern of successive needle penetrations during stitching is influenced in accordance with pattern information stored within the machine in a static memory. This pattern information is retrieved and utilized electronically to control, among other factors, the magnitude and direction of feed of the work fabric being stitched. Manually operable electric feed reversing switch means is provided which is effective, while it remains closed, to interrupt utilization of this pattern information to the stitch forming instrumentalities both as to needle bight and work feed motion and to substitute in its place information from auxiliary static memory for use electronically to influence uniform work feed in a reverse direction with the needle maintained in one predetermined lateral position. Provision is also made upon each reopening of the feed reversing switch for reinstating the beginning of that particular pattern of stitches which had been interrupted regardless of where during the course of sewing that stitch pattern the feed reversing switch may have been closed.