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. 08, 1978
Filed:
May. 03, 1977
Konrad Pollmeier, Bielefeld, DE;
Franz Hannemann, Detmold, DE;
Durkoppwerke GmbH, Bielefeld, DE;
Abstract
A sewing station in which lengthy material, e.g. sleeve or trouser-leg fabric workpieces, can be provided with a seam in substantially automated operation. The material to be sewn is advanced from a loading station, where it is initially held by a fixed clamp, to the sewing machine. While the material is advanced past the sewing machine by the fabric transport, it is guided by a moving or trailing clamp which trails along with the material holding it in lightly stretched relation to the sewing machine transport mechanism. The clamps are provided with pneumatic pistons which actuate or perform the clamping functions. The pistons are controlled by switches and valves to alternatingly open and close the clamps as required by the seaming operation. The station provides for a simplified operation requiring monitoring by an operator only for the initial positioning and initial seaming.