US Patent: 1,929,021
|
| Multiple Roll Set Board Drop Hammer
|
|
Patentee:
|
|
| Michael H. Flynn (exact or similar names) - Hartford, CT |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
May 03, 1926 |
| Granted: |
Oct. 03, 1933 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
"Vintage Machinery" entry for Billings & Spencer Co.
|
|
Description: |
| Jeffery Kimball Eggleston - patent attorney
The object of the invention is an improvement in the mechanism for causing the lifting rolls of the several sets to bear simultaneously and equally upon the hammer board. These rolls and their supports and the members which move the latter are ponderous structures but are required to move quickly into and out of board-gripping position and some considerable difficulty has been encountered, under these conditions, in causing them to exert substantially equal pressure on the hammer board as well as in causing them to release the board simultaneously. Failure of the rolls to act in close unison when engaging, as well as when disengaging, the board interferes with sustained reciprocation of the hammer, besides inuring and shortening the life of the board. The present invention overcomes the difficulties referred to, by the use of mechanism simple in form and the least subject to derangement, under the severe conditions of drop hammer use.
|
|
