Method of making toothed lock washers

Details Method of making toothed lock washers Method of making toothed lock washers

1975-08-13

1976-11-02

Lanham, C.W.

B21D 5320

Patent

active

039887960

ABSTRACT:
A method of making toothed lock washers from sheet material wherein the lock washer bodies are blanked from the sheet material with adjacent outline configurations of the lock washers in close proximity within the sheet material, whereby the unused portions of sheet material between the outline configurations is minimized and sheet material is conserved.

REFERENCES:
patent: 1659161 (1928-02-01), Richer
patent: 1784142 (1930-12-01), Hosking
patent: 2188310 (1940-01-01), Price
patent: 2234194 (1941-03-01), Poupitch
patent: 2352118 (1944-06-01), Poupitch

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