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:
Nov. 29, 1983
Filed:
Dec. 17, 1981
Franz Hannemann, Detmold, DE;
Durkoppwerke GmbH, Bielefeld, DE;
Abstract
A workpiece transporter for a sewing machine comprises an endless conveyor belt looped around a driving sheave and several deflecting rollers, the latter including a first and a second roller carried on the free ends of respective spring-loaded levers placing that belt only under a moderate tension. The first deflecting roller is closely juxtaposed with the upstream side of the driving sheave, its axis defining with that of the sheave and with the fulcrum of its lever an obtuse triangle whose vertex angle increases as that roller approaches the sheave when an obstacle retards the belt motion, such approach clamping the belt more tightly between the roller and the sheave for firmer entrainment.