US Patent: 2,317,060 - Safety Device for Radial Drill Arm Elevating Screws


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US Patent: 2,317,060

Safety Device for Radial Drill Arm Elevating Screws

Patentee:

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

USPTO Classifications:

188/82.9, 408/132, 470/176, 74/424.71

Tool Categories:

metalworking machines : metalworking machine mechanisms

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:	Apr. 29, 1942
Granted:	Apr. 20, 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:

This invention relates to machine tools and is particularly directed to improvements in the mounting and structure of the elevating screw for a radial drill. In the type of radial drill concerned in this invention, the arm of the drill is raised and lowered on the column by means of a power driven nut mounted within the arm and engaging the threads of a vertically suspended elevating screw. The screw is normally stationary.