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:
Jun. 12, 1984
Filed:
Jun. 01, 1982
Applicant:
Inventor:
Thomas G Graham, Emerson, NJ (US);
Assignee:
The Singer Company, Stamford, CT (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
192 / ; 192 95 ; 1921 / ; 112220 ;
Abstract
A clutch element fastened to the end of a sewing machine main shaft by a shouldered screw is slidable thereon to a first position wherein axially extending clutch fingers thereof extend through guide notches in an interlock element fixed to the main shaft by the shouldered screw, into axially aligned recesses in a belt driven handwheel so as to drive the sewing machine main shaft. In a second position of the clutch element, the axially extending fingers thereof are withdrawn from the recesses in the handwheel so that the sewing machine main shaft is not driven. Detent means are provided to maintain the clutch element in a selected position.