B - Operations – Transporting – 27 – N
Patent
B - Operations, Transporting
27
N
18/1012, 154/40
B27N 3/20 (2006.01) B27N 3/24 (2006.01) B30B 5/06 (2006.01)
Patent
CA 1196261
Abstract of the Disclosure A belt-type particleboard press has upper and lower vertically spaced press platens confronting each other and forming a straight horizontal path that can be well over 10m long. Respective upper and lower belts have confronting parallel stretches lying between the platens and flanking the path. Thus the belts are driven to move the mass of particles to be pressed along the path from an upstream end to a downstream end thereof. Press frames traversed by the platens and belt stretches bears vertically on one of the platens, normally supporting the lower platen. Heavy-duty hydraulic actuators are engaged between each frame and the other platen, normally the upper platen. The press frame is constituted as a plurality of frames traversed by the platens and belt stretches and formed as a single sheet-steel element at and adjacent the downstream end and as a group of substantially identical such elements at and adjacent the upstream end. A plurality of substantially identical hydraulic actuators are engaged between each frame and the other platen. The number of actuators per frame increases from the downstream end toward the upstream end. Thus the pressure exerted against the other platen is substantially greater at the upstream end than at the downstream end. These actuators are upright simple hydraulic rams and are all pressurized at the same pressure.
410223
Borden Ladner Gervais Llp
Siempelkamp (g.) G.m.b.h. & Co.
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