US Patent: 1,038,670
|
| Threading Die
|
|
Patentee:
|
|
| Oscar A. Smith (exact or similar names) - Cleveland, OH |
|
|
Patent Dates:
|
| Applied: |
Mar. 30, 1911 |
| Granted: |
Sep. 17, 1912 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
"Vintage Machinery" entry for National Acme Co.
|
|
Description: |
| Abstract
This invention relates to threading dies of the character known as opening or self-opening dies, the object of the invention being to provide an improved tool of this character simple in construction and easily operated and which there will be no variation in the thread during the operation of the die by reason of the fact that the construction is such that it is impossible for the die chasers to open while a thread is being cut even though the die chaser operating means should be slightly shifted and in which also the die will cut the full length of the stock.
See also patent #1,057,014.
G. L. Weed - patent attorney |
|
