Apparatus and method of manufacturing masonry fasteners

Details Apparatus and method of manufacturing masonry fasteners Apparatus and method of manufacturing masonry fasteners

1993-12-17

1995-01-17

Crane, Daniel C.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72469, B21H 312

Patent

active

053816820

ABSTRACT:
A method and apparatus for manufacturing a masonry fastener having a helical portion. A workpiece is positioned between a pair of tools mounted for relative movement. Both tools have faces defining a plurality of raised and recessed portions that extend generally diagonally thereacross. A frame supports the tools such that the face of one tool generally opposes the face of the other tool face. Relative movement of the tools causes the workpiece to rotate and move across the faces where it is deformed by the interaction of the respective raised and recessed portions of each tool. The result is a masonry fastener having at least a portion of its body formed into a substantially helical shape.

REFERENCES:
patent: 387184 (1888-07-01), Rogers
patent: 428498 (1890-05-01), Laundry
patent: 446042 (1891-02-01), Warren
patent: 1973201 (1934-09-01), Fassinger
patent: 3748673 (1973-07-01), Anderson
patent: 3803889 (1974-04-01), Muenchinger
patent: 4996860 (1991-03-01), Shinjo

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