Patent information:
| Patent: | Utility 1,755,308 |
| Patented: | April 22, 1930 |
| Applied: | January 11, 1927 |
| Title: | Apparatus for Finishing Insulator Shells |
| Description: | Machine to form grooves inside the suspension disk to aid cement adhesion. |
| Category: | Suspension |
| Assigned to: | Electric Service Supplies Co. |
Patentee Information:
| SMITH, William Henry | Norristown, PA |
Class and subclass information:
| Class: | 425 | PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS |
| Subclass: | 268 | POTTERY WHEEL TYPE SUPPORT AND PROFILE; Externally engaging profile tool; |
Known specimens:
| None known |
Drawings:
Page 1 |