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US Patent: 2,696,763
Counterbalancing Mechanism for Machine Tools
Patentees:
Jesse Daugherty (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI
Charles W. Ownley (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI
Gordon H. Jones (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI

USPTO Classifications:
408/235, 409/212, 409/237

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

Assignees:
Giddings & Lewis Machine Tool Co. - Fond Du Lac, Fond Du Lac County, WI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 15, 1950
Granted: Dec. 14, 1954

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.
Description:
Claim:

The improved counterbalancing mechanism comprising

the present invention has been designed primarily for use

in connection with machine tools of the type commonly

known as milling machines. The invention, however, is

capable of other uses and the same may, if desired, with

or without modification, be employed in connection with

a . great variety of machine tools having moving parts

thereof which require counterbalancing.

Heretofore planer type milling machines have presented

relatively serious alignment problems occasioned by the

weight of the headstock and its offset or overhanging

relationship with respect to the supporting structure upon

which it is slidably disposed. Briefly, machines of this

type ordinarily include an elongated bed upon which

there is supported a reciprocatory work-supporting table.

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