US Patent: 213,900
|
| Ventilating Millstones
|
|
Patentee:
|
|
| George Helfert (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Aug. 16, 1878 |
| Granted: |
Apr. 01, 1879 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
|
|
Description: |
| Claim:
The object of this invention is to furnish millstones which shall be so constructed as to cause a circulation of air between and around the stones, to keep them and the flour or meal cool, and prevent the flour or meal from becoming heated and being thus injured. |
|
