Patent information:
| Patent: | Utility 3,185,560 |
| Patented: | May 25, 1965 |
| Applied: | November 10, 1959 |
| Title: | Plural Piston Press Forming Apparatus |
| Description: | Press for forming the inner shape of glass articles such as a suspension insulator |
| Category: | Press |
| Assigned to: | Pilkington Brothers Ltd. |
Patentee Information:
| WILCOCK, John Edward | St. Helens,, England |
Class and subclass information:
| Class: | 65 | GLASS MANUFACTURING |
| Subclass: | 314 | PRESS MOLDING MACHINE; Plural motors coaxial with plunger; |
| Class: | 425 | PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS |
| Subclass: | 356 | PLURAL SHAPING PLUNGERS OR ROLLS COACTING WITH A SINGLE FEMALE MOLD; |
| Class: | 65 | GLASS MANUFACTURING |
| Subclass: | 318 | PRESS MOLDING MACHINE; With means varying plunger pressure during pressing; |
| Class: | 65 | GLASS MANUFACTURING |
| Subclass: | 320 | PRESS MOLDING MACHINE; Selectively operated plural plungers; |
| Class: | 65 | GLASS MANUFACTURING |
| Subclass: | 362 | PLUNGER; |
Known specimens:
| None known |
Drawings:
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