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. 13, 1985
Filed:
Oct. 06, 1983
Kurt Reinke, Bielefeld, DE;
Durkoppwerke GmbH, Bielefeld, DE;
Abstract
A photoelectric device on the head of a sewing machine detects the trailing edge of a fabric workpiece and initiates a count of pulses representing increments of the steps of displacement of the workpiece in stitch formations. Each step is subdivided into a plurality of segments which are represented by respective multiplicities of increments so that from a count of increments after detection of the reference point to a particular angular orientation of the arm shaft, a stitch combination can be drawn from a memory which will include stitches of an original length and stitches of a length reduced from the original by a fixed amount so that in the number of stitches of the selected combination the row will be completed to a certain distance from the reference edge.