US Patent: 393,618
|
Machine For Forming Screw Blanks For Wrenches
|
Manufacturer: |
Not known to have been produced |
|
Patent Dates:
|
Applied: |
Aug. 31, 1888 |
Granted: |
Nov. 27, 1888 |
Patent Pictures:
|
|
Loring Coes patent November 27, 1888 |
USPTO pdf tiff Google Patents
Report data errors or omissions
|
Description: |
Machine with forging dies to form the blanks for the adjusting screws for Coes "monkey wrenches." The machine includes a rotating set of top dies to upset the end of a rod segment and form the concentric base pin and enlarged section which is finished to form the "rosette."
The foot treadle forces the completed forging from the bottom die. |
|