US Patent: 159,989
|
| Improvement in chucks
|
|
Patentee:
|
|
| John H. Westcott (exact or similar names) - Oneida, Madison County, NY |
|
|
Patent Dates:
|
| Applied: |
Dec. 10, 1874 |
| Granted: |
Feb. 16, 1875 |
|
Patent Pictures:
[
1 | 2
]
|
|
|
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
"Vintage Machinery" entry for Westcott Chuck Co.
|
|
Description: |
| Brown & Allen - patent attorneys
The Westcott Chuck Co. name, which changed its name from Oneida Steam Engine & Foundry Co. in about 1886.
My invention relates to certain improvements in scroll-chucks, such as are well known and in ordinary use; and it consists in a novel construction of the scroll and box, whereby the threads are kept cleared and prevented from clogging. In scroll-chucks as heretofore constructed, threads on the face-plate and the box carrying the dogs have been formed with their ends tapering, the ends of the thread of the scroll having been so formed by the meeting of the volute of the thread with the inner and outer concentric circles of the scroll-plate. This formation has produced more or less of a wedge-like action upon any dirt which might accumulate between the threads, which have thereby been liable to become clogged and cause inconvenience in handling the chuck.
|
|
){kind=link}
){kind=link}