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US Patent: 1,817,036
Rate change device
Patentees:
Edward J. Kearney (exact or similar names) - Wauwatosa, WI
Robert S. Condon (exact or similar names) - Milwaukee, WI

USPTO Classifications:
409/169, 74/342, 74/473.1

Tool Categories:
metalworking machines : metalworking machine mechanisms : metalworking machine gearing
metalworking machines : milling machines

Assignees:
Kearney & Trecker Corp. - West Allis, WI

Manufacturer:
Kearney & Trecker Corp. - West Allis, WI

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 21, 1927
Granted: Aug. 04, 1931

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Kearney & Trecker Corp.
Description:
"A purpose of the invention is to provide a device productive of a series of rate changes from the movement of a single lever, together with means indicating the particular rate corresponding with any given lever position... the invention has been shown in connection with a machine tool of the type generally known as a knee and column type milling machine."

By the time this patent was issued, co-inventor Robert Scofield Condon had left Kearney & Trecker to work for the Gleason Gear Works in Rochester. His timing was poor: when he made the move in 1929, he was one of 80 engineers at Gleason, but by 1934 he was one of two.

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