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US Patent: 3,440,463
Spring brake for saw motor
Patentee:
Timothy W. Hennessey - 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.

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