US Patent: 2,404,980 - Machine control means


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US Patent: 2,404,980

Machine control means

Patentee:

Edwin A. Munschauer, Jr. (exact or similar names) - Buffalo, NY

USPTO Classifications:

188/69, 192/131R, 361/189

Tool Categories:

metalworking machines : metal shearing machines

metalworking machines : machine tool controls

metalworking machines : metalworking presses : punch presses

Assignees:

Niagara Machine & Tool Works - Buffalo, NY

Manufacturer:

Niagara Machine & Tool Works - Buffalo, NY

Witnesses:

Unknown

Patent Dates:
Applied:	Feb. 16, 1944
Granted:	Jul. 30, 1946

Patent Pictures:

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Vintage Machinery entry for Niagara Machine & Tool Works

Description:

Improved electrical two-hand controls that will not operate unless both buttons are cycled off-on. This restriction prevents an operator from disabling one button to allow faster (but less safe) operation.