Method of manufacturing a woodworker's holdfast

Details Method of manufacturing a woodworker's holdfast Method of manufacturing a woodworker's holdfast

2006-08-09

2009-08-11

Ross, Dana (Department: 3725)

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Plural or complex apparatus

C072S388000, C269S2890MR, C269S291000

Reexamination Certificate

active

07571631

ABSTRACT:
A semi-automated method for manufacturing a woodworker's holdfast tool from an unheated length of mild steel rod includes forging a flattened contact surface at one end of the rod and subsequently bending the rod upwardly away from the contact surface and forming the crook portion in an automated wire forming machine configured to exceed the desired working angle during cold forming of the crook portion to account for the resilience of the rod when the bending force is removed.

REFERENCES:
patent: 4202082 (1980-05-01), Williams
patent: 6341517 (2002-01-01), Benes et al.

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