EP0192884A1 — Method and device for the slide-casting of concre…

Claim 1

Independent Claim 112 words

Method for the casting of concrete products by means of a continuous slide-casting method, whereat the concrete mix is subjected to pressure by means of a spiral screw or screws (2) and one or several cavities are formed in the product by means of one or several forming members (3) and whereat the concrete mix is compacted by displacing one or several walls of the slide-casting mould structure forcibly along a predetermined path of movement, characterized in that the moving wall (5) of the slide-casting mould structure is fitted as facing the forming members (3) which form the cavities and alter the angle of their longitudinal axes relative a certain articulation point.

Claim 2

Dependent Claim 112 words

Method for the casting of concrete products by means of a continuous slide-casting method, whereat the concrete mix is subjected to pressure by means of a spiral screw or screws (2) and one or several cavities are formed in the product by means of one or several forming members (3) and whereat the concrete mix is compacted by displacing one or several walls of the slide-casting mould structure forcibly along a predetermined path of movement, characterized in that the moving wall (5) of the slide-casting mould structure is fitted as facing the forming members (3) which form the cavities and alter the angle of their longitudinal axes relative a certain articulation point.

Claim 3

Dependent Claim 35 words

Method as claimed in claim 1, characterized in that the top wall of the slide-casting mould structure is displaced back and forth around a horizontal shaft (11) placed at the trailing end of the wall.

Claim 4

Dependent Claim 39 words

Method as claimed in claim 1, characterized in that the top wall (5) of the slide-casting mould structure is displaced back and forth around a vertical shaft (18 or 28) placed at the trailing end of the said wall.

Claim 5

Dependent Claim 37 words

Method as claimed in claim 1, characterized in that the top wall (5) of the slide-casting mould structure is displaced in the horizontal direction by means of an eccentric cam (23) revolving around a vertical shaft (22).

Claim 6

Dependent Claim 39 words

Method as claimed in claim 1, characterized in that the front end of the top wall (5) of the slide-casting mould structure is displaced along a path of movement that moves around the longitudinal axis of the top wall.

Claim 7

Dependent Claim 93 words

Device for the casting of concrete products by means of a continuous slide-casting method, whereat the device includes longitudinal walls (9,6,5), means for displacing one or several walls forcibly along a predetermined path of movement, a spiral screw or screws (2) for feeding the mix, as well as, inside the walls, one or several forming members (3) that form cavities, characterized in that the moving wall (5) of the slide-casting mould structure is fitted as facing the forming members (3) which alter the angle of their longitudinal axes relative a certain articulation point.

Claim 8

Dependent Claim 93 words

Device for the casting of concrete products by means of a continuous slide-casting method, whereat the device includes longitudinal walls (9,6,5), means for displacing one or several walls forcibly along a predetermined path of movement, a spiral screw or screws (2) for feeding the mix, as well as, inside the walls, one or several forming members (3) that form cavities, characterized in that the moving wall (5) of the slide-casting mould structure is fitted as facing the forming members (3) which alter the angle of their longitudinal axes relative a certain articulation point.

Claim 9

Dependent Claim 36 words

Device as claimed in claim 6, characterized in that the top wall (5) of the slide-casting mould structure is displaceable back and forth around a horizontal shaft (11) placed at the trailing end of the wall.

Claim 10

Dependent Claim 39 words

Device as claimed in claim 6, characterized in that the top wall (5) of the slide-casting mould structure is displaceable back and forth around a vertical shaft (18 or 28) placed at the trailing end of the said wall.

Claim 11

Dependent Claim 61 words

Device as claimed in claim 8, characterized in that the top wall (5) of the slide-casting mould structure is divided, in the transverse direction, into two or more parts (5'), which are interconnected by means of two or more longitudinal beams (27), whereat the said longitudinal beams are displaceable back and forth around vertical shafts (28) placed at their trailing ends.

Claim 12

Dependent Claim 37 words

Device as claimed in claim 6, characterized in that the top wall (5) of the slide-casting mould structure is supported on one or several vertical shafts (22), whereby the top wall is displaceable in the horizontal direction.

Claim 13

Dependent Claim 39 words

Device as claimed in claim 6, characterized in that the front end of the top wall (5) of the slide-casting mould structure is displaceable along a path of movement that moves around the longitudinal axis of the top wall.

Claim 14

Dependent Claim 53 words

Device as claimed in any of the preceding patent claims, whose side walls (6) are provided with means (30) for forming grooves into the sides of the concrete product, characterized in that the said means (30) for forming the groove are displaceable along with the top wall (5) of the slide-casting mould structure.

Method and device for the slide-casting of concrete hollow products

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