Method for producing a transversely curved finger binding

Details Method for producing a transversely curved finger binding Method for producing a transversely curved finger binding

1979-01-23

1980-12-23

Hoag, W. E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264323, 264325, 264339, B29C 1700, B29F 500

Patent

active

042410061

ABSTRACT:
A method is disclosed for producing a longitudinally extending curved finger binding made of plastic material. The fingers are arched transversely to their longitudinal axis to provide an arched contour with a resulting increase in stiffness. A blank from which the binding is formed is heated to a temperature sufficient to soften the plastic blank. Fingers of the blank are curled and a backbone portion of the blank is curved into a closed circular plastic binding formation by use of a guide form. The guide form simultaneously curves each of the fingers transverse to their longitudinal axis.

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patent: 3280240 (1966-10-01), Bardy

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