US Patent: 45,749
|
| Improvement in fan-blowers
|
|
Patentee:
|
|
| Rufus Porter (exact or similar names) - Malden, MA |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Granted: |
Jan. 03, 1865 |
| Antedated: |
Jun. 23, 1864 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Jeff Joslin
|
|
Description: |
| This patent does not mention the famous Roots blower, patent 30,157, but that is clearly the inspiration. Porter's innovation is to replace the gear wheels of Roots' design with pitman arms and sliding shafts. |
|
