US Patent: 2,121,085
|
| Clamp
|
|
Patentee:
|
|
| Alfred F. Krumholz (exact or similar names) - Chicago, IL |
|
|
Patent Dates:
|
| Applied: |
Apr. 10, 1937 |
| Granted: |
Jun. 21, 1938 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Jeff Joslin
|
|
Description: |
| This clamp is adapted for use in welding: a sleeve is used to protect the screw thread from weld spatter.An example is marked "Red Head" on one side and "Chicago Boiler Co. / Pat. 2,121,085" on the other. A search turns up ads from Chicago Boiler Co., 1971 Clybourn Avenue, for their "Red Head welding clamps". The ads we found span 1951 through 1962. |
|
