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US Patent: 2,066,372
Method of Making Dies or Punches
Patentee:
Joseph J. Tomalis (exact or similar names) - Providence, Providence County, RI

USPTO Classifications:
72/324, 72/356, 72/375, 76/107.1, 76/119, 81/460

Tool Categories:
metalworking tools : metal punches
metalworking machines : metalworking presses : stamping presses : stamping press dies

Assignees:
American Screw Co. - Providence, Providence County, RI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Oct. 03, 1935
Granted: Jan. 05, 1937

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for American Screw Co.
Description:
Claim:

An important feature of the invention resides in the construction of a punch comprising a projection or nub extending integrally from a shoulder on the end of a metal bar, wherein the metal of the punch is compressed and upset as a result of cold pressing into a matrix and wherein simultaneously a fillet is formed at the junction of all of the surfaces of the projection and the said shoulder.

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