Patent information:
| Patent: | Utility 1,469,584 |
| Patented: | October 2, 1923 |
| Applied: | December 30, 1921 |
| Title: | Tube Forming Machine |
| Description: | Machine for making porcelain wall tubes |
| Category: | Wall Tube |
| Assigned to: | Federal Porcelain Co. |
Patentee Information:
| CASE, Francis M. | Cleveland, OH |
Class and subclass information:
| Class: | 425 | PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS |
| Subclass: | 340 | PLURAL RESHAPING MEANS OR PLURAL VULCANIZING MEANS INCLUDING CONFORMING PREFORM SUPPORT; |
| Class: | 425 | PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS |
| Subclass: | 152 | WITH SAFETY FEATURE; Plural starting buttons or mold operating means dependent upon position of a machine element; |
| Class: | 425 | PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS |
| Subclass: | 392 | PREFORM RESHAPING OR RESIZING MEANS: OR VULCANIZING MEANS INCLUDING A CONFORMING PREFORM SUPPORT; Rod or tubular preform; |
| Class: | 425 | PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS |
| Subclass: | 444 | SHAPING SURFACE INCLUDING MEANS TO RELEASE OR REMOVE PRODUCT FROM SHAPING SURFACE; By movable ejector means entering mold cavity; |
Known specimens:
| None known |
Drawings:
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