US Patent: 1,273,441 - Method or Process of Nurling


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US Patent: 1,273,441

Method or Process of Nurling

Patentee:

Edwin Allen Bardwell (exact or similar names) - Shelburne Falls, Franklin County, MA

USPTO Classifications:

72/412, 72/68, 72/88

Tool Categories:

punches : pin punches

Assignees:

H. H. Mayhew Co. - Shelburne Falls, Franklin County, MA

Manufacturer:

H. H. Mayhew Co. - Shelburne Falls, Franklin County, MA

Witnesses:

Unknown

Patent Dates:
Applied:	Jun. 19, 1917
Granted:	Jul. 23, 1918

Patent Pictures:

Edwin A. Bardwell patent July 23, 1918

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Description:

The process involves impressing cross-hatched grooves in tool surfaces while the metal is hot. A nail set with knurled surface is shown as an example.