US Patent: 441,016
|
| Pencil-sharpener
|
|
Patentee:
|
|
| Arthur J. Mundy (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Feb. 26, 1890 |
| Granted: |
Nov. 18, 1890 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Jeff Joslin
|
|
Description: |
| This pencil sharpener rotates the pencil over rotating knives to remove the wood but leaving the lead mostly intact, the end of the lead being held against a stop. An emery wheel is then used to point the lead at a sharper angle than that used to shave back the wood. |
|
