Concrete press with mold clamping means

Details Concrete press with mold clamping means Concrete press with mold clamping means

1973-10-29

1976-07-13

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Press forming apparatus having opposed press members

Male shaping member and female mold

425150, 425410, 425454, B28B 300

Patent

active

039690610

ABSTRACT:
A concrete press has an upper movable platen and a lower fixed platen. Hydraulic cylinders are interposed between the upper platen and frames of the press which extend horizontally over this platen. A mold shaped as a concrete building panel is filled with high water-to-cement ratio concrete and is introduced between the platens for pressing. The mold has collapsible interleaving sides. Lateral hydrostatic pressure on the short ends of the molds is resisted with hydraulic rams. Hydrostatic pressure against the long sides of the molds is resisted by hydraulically positioned wedges which are interposed between the mold sides and the frames which contain the platens and cylinders. Means which are responsive to the cylinder positions are provided for maintaining all parts of the movable platen level during the compacting process. The mold sections are prevented from collapsing inadvertently with magnet means.

REFERENCES:
patent: 1998117 (1935-04-01), Brush
patent: 2038205 (1936-04-01), Case
patent: 2786254 (1957-03-01), Olson
patent: 2820250 (1958-01-01), Stratton
patent: 3195186 (1965-07-01), Gauban et al.
patent: 3553798 (1971-01-01), Reckman et al.
patent: 3640660 (1972-02-01), De Mets
patent: 3667880 (1972-06-01), Malet et al.

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