Tensioning spring for brick cutter wires

Details Tensioning spring for brick cutter wires Tensioning spring for brick cutter wires

1991-05-20

1991-12-24

Rachuba, M.

Stone working

Sawing

Reciprocating

125 17, B28D 106

Patent

active

050742779

ABSTRACT:
A cutter frame for cutting unfired brick material is provided with a tensioning leaf spring having a lateral mounting portion. A cutter wire end loop is positioned over the mounting projection and is placed in substantial tension by such spring. The mounting projection is deformed by plastic deformation to provide a fully curved cutter wire loop support surface. Since the support surface for the cutter wire is curved, sharp corners are eliminated and fatigue failures in the cutter wire are substantially reduced. Further, the smooth support surface allows the wire to automatically position itself to equalize the tension in each leg of the loop.

REFERENCES:
patent: 3435815 (1969-04-01), Porcier
patent: 3478397 (1969-11-01), Pearne et al.
patent: 3976045 (1976-08-01), Coggins, Jr.
patent: 4287869 (1981-09-01), Schmid
patent: 4393450 (1983-07-01), Jerard

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