US Patent: 2,401,276 - Tripping mechanism


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US Patent: 2,401,276

Tripping mechanism

Patentees:

John H. McKewen (exact or similar names) - Cincinnati, OH

Lawrence Lee Schauer (exact or similar names) - Wyoming, OH

USPTO Classifications:

173/5, 408/129

Tool Categories:

metalworking machines : drilling and boring : drill presses

woodworking machines : wood drilling and boring : drill presses

Assignees:

Cincinnati Bickford Tool Co. - Cincinnati, OH

Manufacturer:

Cincinnati Bickford Tool Co. - Cincinnati, OH

Witnesses:

Unknown

Patent Dates:
Applied:	May 22, 1945
Granted:	May 28, 1946

Patent Pictures:

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Vintage Machinery entry for Cincinnati Bickford Tool Co.

Description:

This tripping mechanism for drill presses supports both an immediate withdrawal of the drill, as when through drilling, as well as a delayed withdrawal, as when spot facing.