US Patent: 2,382,719 - Drill Spindle Driving Mechanism


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US Patent: 2,382,719

Drill Spindle Driving Mechanism

Patentee:

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

USPTO Classifications:

408/133, 74/28, 74/333, 74/606R

Tool Categories:

metalworking machines : metalworking machine mechanisms : metalworking power transmission

metalworking machines : drilling and boring : drill presses : radial drill presses

Assignees:

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

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	May 28, 1943
Granted:	Aug. 14, 1945

Patent Pictures:

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

Description:

Original application 28 July, 1939. Divided and this application 28 May, 1943.

Claim:

The principal objective of the present invention has been to provide a spindle assembly which is sustained in an improved bearing arrangement whereby correct axial alignment and true running of the spindle are maintained and such distortions are avoided. This application is a division of my copending application Serial No. 287,132 entitled Drill spindle driving mechanism and, among other features, the invention contemplates a transmission connection for imparting drive to the spindle which is disposed adjacent the tool-receiving socket of the spindle, or in the case of a radial drill approximately in the plane of the lower spindle bearing.