US Patent: 1,660,137 - Drilling Machine


	Home\| FAQ	Search:Advanced\|Person\|Company\| Type\|Class	Login


Quick search:	Patent number:	Patent Date:

US Patent: 1,660,137

Drilling Machine

Patentees:

Albert E. Robinson (exact or similar names) - Cincinnati, Hamilton County, OH

Augustus M. Sosa (exact or similar names) - Cincinnati, Hamilton County, OH

USPTO Classifications:

29/26R, 408/133, 470/96, 74/333, 74/342

Tool Categories:

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:	Feb. 21, 1925
Granted:	Feb. 21, 1928

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:

Our invention relates to means for driving the drill-spindle of a drilling machine at a plurality of selective speeds, and is an elaboration upon thefinechanism disclosed in Letters Patent of the United States No.1,297,256, granted 11 March, 1919, on the application of H. W. Schatz and A. M. Sosa, for improvements in drilling machines.

In the device of said patent a relatively small gear is associated with the drill-spindle for rotating the drill-spindle at high speeds, and a relatively large gear, exemplified as an internal gear, is associated with the drill-spindle for rotating the drill-spindle at relatively-slow speeds, these relatively high speeds and relatively slow speeds being multiplied by speed changing mechanism.