Presses – With additional treatment of material – Cutting – breaking – piercing – or comminuting
Patent
1982-01-19
1983-10-11
Feldman, Peter
Presses
With additional treatment of material
Cutting, breaking, piercing, or comminuting
100 46, B30B 702, B30B 1528, B30B 1534
Patent
active
044085206
ABSTRACT:
A platen press has upper and lower platens each provided with at least one rigidifying beam. A group of hydraulic cylinders spaced about over one of the platens serves to urge the two platens together in a pressing direction to compress a workpiece--plywood, fiber mat, chipboard, or the like--between the platens. During pressing the platens and their rigidifying beams bend somewhat. This bending is measured by an apparatus which comprises a flexible strand, holders at the ends of the one beam for gripping the ends of the strand and holding same straight and under tension, and sensors fixed on the one beam at a location between the ends of the one beam for measuring the displacement of the strand relative to the beam at the location during pressing. This sensor lies wholly out of physical contact with the strand.
REFERENCES:
patent: 150115 (1874-04-01), Weston et al.
patent: 2627289 (1953-02-01), Berthelsen
patent: 3640660 (1972-02-01), DeMets
patent: 3729985 (1973-05-01), Sikorra
patent: 3952879 (1976-04-01), Grove
patent: 4289467 (1981-09-01), Pesch
patent: 4367655 (1983-01-01), Bluml et al.
Sitzler Hans-Dietrich
Wons Hubert
Dubno Herbert
Feldman Peter
G. Siempelkamp GmbH & Co.
Ross Karl F.
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