Patent information:
| Patent: | Utility 1,556,440 |
| Patented: | October 6, 1925 |
| Applied: | December 20, 1924 |
| Title: | Press for Making Insulators and the Like |
| Description: | Press for forming threads in porcelain insulators and to prevent damaging the threaded pinhole once formed |
| Category: | Press |
| Assigned to: |
Patentee Information:
| HIBBARD, Robert L. | Bellevue, PA |
Class and subclass information:
| Class: | 425 | PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS |
| Subclass: | 418 | PRESS FORMING APPARATUS HAVING OPPOSED PRESS MEMBERS; Male shaping member and female mold; Means rotating male shaping members; |
| Class: | 425 | PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS |
| Subclass: | 423 | PRESS FORMING APPARATUS HAVING OPPOSED PRESS MEMBERS; Male shaping member and female mold; Female mold moving into a mating relationship with a male shaping member; |
Known specimens:
| None known |
Drawings:
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