US Patent: 1,398,978 - Tool-Driving Machine


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US Patent: 1,398,978

Tool-Driving Machine

Patentee:

Henry C. Smith (exact or similar names) - St. Marys, Auglaize County, OH

USPTO Classifications:

74/89.38

Tool Categories:

metalworking machines : metalworking machine mechanisms : metalworking power transmission

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Nov. 17, 1919
Granted:	Dec. 06, 1921

Patent Pictures:

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"Vintage Machinery" entry for Quickwork Co.

Description:

Claim:

This invention relates to driving mechanism for rotatable machine tools such as to drills, reamers and milling cutters, and its object is to provide a driving gearing and feeding device for a spindle to which the cutting tools may be connected by means of universal couplings and interchangeable shafts.