Plastic article or earthenware shaping or treating: apparatus – With means adjusting synchronization or compensating for wear
Patent
1976-06-23
1977-05-24
Spicer, Jr., Robert L.
Plastic article or earthenware shaping or treating: apparatus
With means adjusting synchronization or compensating for wear
425315, 425317, 425363, 425385, 425DIG201, B29C 306, B29C 1500
Patent
active
040252639
ABSTRACT:
An apparatus for manufacturing thermoplastic duplication plates having a relief image transcribed thereto from a matrix which has a relief pattern in complemental relation to the transcribed relief image. To this end, the apparatus includes a hollow cylinder heated to a predetermined temperature and by which a thermoplastic resin sheet is, while clinging thereto, transported towards a transcription clearance. A movable platen supported for movement between standby and operated positions cooperates with the hollow cylinder to define the transcription clearance. During the transportation of the thermoplastic resin sheet towards the transcription clearance, it becomes substantially semi-fluidized so that, during passage of the thermoplastic resin sheet together with the matrix carried by the platen being moved towards the operated position, the thermoplastic resin sheet penetrates deep into indentations in the matrix which define the relief pattern, thereby completing a thermoplastic duplication plate.
REFERENCES:
patent: 2849752 (1958-09-01), Leary
patent: 3131425 (1964-05-01), Jacobs et al.
patent: 3157723 (1964-11-01), Hochberg
patent: 3412427 (1968-11-01), Fliesfeder et al.
patent: 3596322 (1971-08-01), Swezey
Aisu Nobuo
Morino Ikuo
Nippon Paint Co. Ltd.
Spicer, Jr. Robert L.
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