US Patent: 2,073,704
|
| Drill press
|
|
Patentee:
|
|
| Walter G. Mitchell (exact or similar names) - Oak Park, IL |
|
|
Patent Dates:
|
| Applied: |
Jul. 13, 1935 |
| Granted: |
Mar. 16, 1937 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Jeff Joslin
Vintage Machinery entry for Sears | Craftsman
Vintage Machinery entry for Atlas Press Co.
|
|
Description: |
| This patent covers an intermediate pulley mounting ("slow-speed attachment") for providing lower speeds on a variable-speed drill press; the mounting used an expansion plug that fit into the top of the drill press column. This device was available as an accessory for all 101.03xxx model Craftsman drill presses, which were built by Atlas Press. Given the inventor's location, he was most likely a Sears employee, but the patent is not assigned to Sears or to Atlas Press. We do not know for certain who actually manufactured it; we assume here that it was made by Atlas Press.A 1946 patent, #2,395,896, was granted to our inventor, Walter G. Mitchell, and assigned to Sears. Another 1946 patent, #2,402,972, was granted to Mitchell and assigned to Independent Pneumatic Tool Co. Based on patent application dates, Mitchell likely changed employment in 1943 or '44. This drill press patent is, as far as we can tell, Mitchell's first patent of more than two dozen he would be granted. |
|
