Carl M Seipel

US Patent:

42746060, Jun 23, 1981

Filed:

Aug 30, 1979

Appl. No.:

6/071268

Inventors:

Hans Bernwall - Corte Madera CA
Lars Lundberg - 45071 Fjallbacka, SE
Carl Seipel - Kentfield CA

International Classification:

B65H 7518

US Classification:

242117

Abstract:

An improved winch is disclosed which possesses means for increasing the coefficient of friction on the surface of the spool only in an area substantially at the intersection of the drum and flange sections of the winch so that only the last turn of rope or line around the winch would contact the area of increased friction. Friction in this area can be increased by placing a rubber ring over a conventional winch which makes it self-tailing. As a further embodiment, the winch possesses a surface which is recessed, said recess containing radial projection elements for the support of friction increasing sections contained between said radial projection elements within the recess.