B - Operations – Transporting – 30 – B
Patent
B - Operations, Transporting
30
B
100/46
B30B 7/02 (2006.01) B30B 1/32 (2006.01) B30B 15/04 (2006.01)
Patent
CA 1262072
INVENTION: PRESS WITH ADJUSTABLE PLATEN SPACING INVENTORS: RONALD BALLANTYNE and LEON MALASHENKO ABSTRACT OF THE DISCLOSURE A hydraulic press is inexpensively adapted to permit adjustment of the clearance between upper and lower platens and to permit the press to be divided into distinct upper and lower sections for purposes of transport. The press has four vertical posts which extend upwardly from the lower platen. Each post has a lower section which slides in the lower platen, an upper section is fitted into and slides relative to the upper platen, and a releasable joining structure which connects the post sections to define a unitary post structure. Light-duty hydraulic cylinders permit gross positioning of the upper platen on the posts. The upper platen is then locked to the upper post sections in a predetermined relative position, and heavy-duty hydraulic cylinders acting on the posts serve to draw the upper platen towards the lower platen to compress a work piece. When platen clearance is to be adjusted, the joining structures are released, hydraulic cylinders formed in the interior of each lower post portion are actuated to raise the associated upper post portions, and the upper platen is supported from the lower platen by mechanical blocks. Mechanical spacers retained by the joining structures are then replaced with spacers of different height thereby adjusting maximum platen clearance. Also, when the joints are released, the press effectively divides into upper and lower sections which can be more conveniently transported.
514483
Ballantyne Ronald
Malashenko Leon
Ballantyne Ronald
Hepburn (john T.) Limited
Malashenko Leon
Waraksa Mirek A.
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