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US Patent: 1,172,341
Speed Changing Mechanism
Patentee:
Edward P. Bullard, Jr. - Bridgeport, Fairfield County, CT

USPTO Classifications:
74/342, 74/473.24, 74/483R

Tool Categories:
metalworking machines : metalworking machine mechanisms : metalworking machine gearing : metalworking speed changing mechanisms
metalworking machines : drilling and boring : vertical boring mills

Assignees:
Bullard Machine Tool Co. - Bridgeport, Fairfield County, CT

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 11, 1911
Granted: Feb. 22, 1916

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Bullard Machine Tool Co.

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