US Patent: 54,760
|
| Improvement in chucks
|
|
Patentee:
|
|
| Leverett Homer Olmsted (exact or similar names) - Stamford, CT |
|
|
Patent Dates:
|
| Granted: |
May 15, 1866 |
|
Patent Pictures:
|
|
Images includes all drawings for this patent. |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Jeff Joslin
Vintage Machinery entry for L. H. Olmsted
|
|
Description: |
| Three-jaw chuck whose jaws are held open by springs. The shell's tapered interior prevents the jaws from closing completely, thereby avoiding their falling inside the bore of the spindle. The 1866-07-07 Scientific American had a Classified Ad from L. H. Olmsted of Stamford, Conn., for "Drill Chucks. Olmsted's Patent. Self-centering and Tightening, made from the best Cast Steel, and every piece is hardened. We make two sizes... Price: No. 1, $7; No. 2, $5.50." |
|
