US Patent: 3,440,463 - Spring brake for saw motor


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US Patent: 3,440,463

Spring brake for saw motor

Patentee:

Timothy W. Hennessey (exact or similar names) - Springfield, OH

USPTO Classifications:

310/77

Tool Categories:

woodworking machines : circular saws : radial arm saws

woodworking machines : woodworking machine mechanisms

Assignees:

Robbins & Myers, Inc. - Springfield, OH

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Jan. 13, 1967
Granted:	Apr. 22, 1969

Patent Pictures:

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Description:

This invention is intended for the motor of a radial arm saw, and is claimed to stop the blade in five to ten seconds, without damaging the motor or loosening the sawblade.

Robbins & Myers made motors but not complete radial arm saws; it is not known which makers, if any, used this invention.