US Patent: 2,313,438 - Fluid Operated Gear Shifting Mechanism


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US Patent: 2,313,438

Fluid Operated Gear Shifting Mechanism

Patentee:

William G. Hoelscher (exact or similar names) - Cincinnati, Hamilton County, OH

USPTO Classifications:

116/277, 137/553, 137/580, 137/635, 137/636, 192/3.57, 29/42, 74/346, 82/143, 91/448

Tool Categories:

metalworking machines : metalworking machine mechanisms : metalworking machine gearing : metalworking speed changing mechanisms

metalworking machines : metalworking machine mechanisms : hydraulic apparatus

Assignees:

American Tool Works Co. - Cincinnati, Hamilton County, OH

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Jul. 18, 1940
Granted:	Mar. 09, 1943

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for American Tool Works Co.

Description:

Claim:

It has been the object of the present inventor to provide a control lever and valve arrangement constituting a gear selecting and shifting means which is compactly arranged and easily operated from a single lever; this lever in one direction of movement selecting the speed and in another direction of movement effecting the gear change.