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US Patent: 1,167,440
Variable-speed gearing
Patentee:
Grant Sipp (exact or similar names) - Paterson, NJ

USPTO Classifications:
474/81

Tool Categories:
metalworking machines : drilling and boring : drill presses
woodworking machines : wood drilling and boring : drill presses

Assignees:
None

Manufacturer:
Foote-Burt Co. - Cleveland, OH
Sipp Machine Co. - Paterson, NJ

Witnesses:
John W. Steward
William D. Bell

Patent Dates:
Granted: Jan. 11, 1916

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Foote-Burt Co.
Vintage Machinery entry for Sipp Machine Co.
Description:
This patent covers a speed-changing mechanism for a sensitive drill that allows quick speed changes over a wide speed range.

This patent was seen on a Foote-Burt drilling machine. We assume that Sipp Machine Co. also used it.

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