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US Patent: 941,506
Change Speed Mechanism
Patentee:
Charles B. Elmore (exact or similar names) - Hartford, Hartford County, CT

USPTO Classifications:
144/92, 474/63, 474/68, 474/77

Tool Categories:
metalworking machines : metalworking machine mechanisms : metalworking machine gearing : metalworking speed changing mechanisms
metalworking machines : drilling and boring : drill presses

Assignees:
Samuel E. Elmore - Hartford, Hartford County, CT

Manufacturer:
Dwight Slate Machine Co. - Hartford, Hartford County, CT

Witnesses:
Arthur B. Jenkins
Lena E. Berkovitch
F. H. Elliott

Patent Dates:
Applied: Nov. 07, 1906
Granted: Nov. 30, 1909

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Dwight Slate Machine Co.

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