Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Presses or press platen structures – per se
Patent
1977-11-14
1979-08-14
Drummond, Douglas J.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Presses or press platen structures, per se
4285395, 252 122, B30B 1534
Patent
active
041644409
ABSTRACT:
A device for vulcanizing conveyor belts is disclosed consisting essentially of an improved flat platen press comprising two platens which are parallel to each other and superimposed, a plurality of frames, resting on carriages, each provided with a central aperture, the platens being inserted in the frame apertures, one of the platens being attached to the rim of the frame apertures and the other platen being supported by the pistons of cylinder/piston systems attached to the rim of the frame apertures, clamps for clamping, moving and tensioning the conveyor belt up-line and down-line of the platens, and two metal strips subtended by cylinders, one metal strip surrounding the upper platen in the longitudinal direction and the other metal strip surrounding the lower platen in the longitudinal direction, and means for heating each of the platens, and including means for substantially reducing the coefficient of sliding friction between each platen and the corresponding metal strip surrounding it.
REFERENCES:
patent: 3032454 (1962-05-01), Rohdin
patent: 3547742 (1970-12-01), Cottrell
patent: 3956058 (1976-05-01), Wemhoener
patent: 3993426 (1976-11-01), Ahrweiler et al.
Drummond Douglas J.
Industrie Pirelli S.p.A.
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