Concrete-molding machine

Details Concrete-molding machine Concrete-molding machine

1995-08-25

1997-07-01

Mackey, James P.

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For press shaping surface

425192R, B28B 302, B30B 1502

Patent

active

056436165

ABSTRACT:
Concrete-molding machine having a ram on which an upper mold part is fastened in a releasable manner. The quick-fastening device used for this purpose comprises connecting pins which have a shank and a widened cross-piece. In order to simplify the device, the connecting pins are fastened on the upper mold part by means of their shanks. Located on the ram or on a carrying plate fixedly connected thereto is a horizontal slide with keyhole-like clearances into which the connecting pins can be inserted from beneath. Pneumatic lifting elements grip below the slide and draw it up, in the connecting position, to the cross-pieces.

REFERENCES:
patent: 3799721 (1974-03-01), Howard
patent: 4116599 (1978-09-01), Ruegg
patent: 4484880 (1984-11-01), Schwarz
patent: 4773839 (1988-09-01), Case et al.
patent: 4790739 (1988-12-01), Manfredi
patent: 5078586 (1992-01-01), Holzschuh
patent: 5259742 (1993-11-01), Ichikawa et al.
patent: 5486101 (1996-01-01), Guyon
2-page leaflet of Manfred Vetter GmbH, Zuelpich, Germany; date unknown.

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