press for embossing a thermoplastic plate, preferably for the manufacture of a university.

摘要

A record making press comprises a narrow hydraulic pressure chamber of which one broad wall is constituted by a flexible thermally conductive diaphragm capable of impressing contours of a matrix onto a sheet of thermoplastic material, a hydraulic fluid inlet and hydraulic fluid outlet for the chamber, and a thermally conductive structure which extends throughout a substantial part of the chamber for inducing turbulence into the flow of fluid therethrough.