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US 4,786,242 AGranted
Apparatus for the casting of hollow slabs out of concrete
AssigneeOy Partek AB
InventorJaakko O. Barsk
Life of this patent
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Abstract
A casting apparatus for casting a hollow slab out of concrete includes a feeder member having an axis extending between first and second ends thereof and a forming member supported on the apparatus adjacent the second end of the feeder member. A central longitudinal axis of the feeder member is moved at a first end thereof along a path of movement of a set shape and a point of the axis of the forming member is maintained in a stationary position relative to the axis of the feeder member.
Claims12
A casting apparatus for casting a hollow slab out of concrete, comprising:
- walls;
- at least one feeder member having a first end, a second end and a central longitudinal axis extending between said first and second ends of said feeder member;
- a forming member having a first end, a second end and a central longitudinal axis extending between said first and second ends of said forming member, and being supported on the machine adjacent said second end of said feeder member, the feeder member being adapted to feed concrete mix toward the forming member;
- means for moving said central longitudinal axis of said forming member at said first end thereof along a path of movement of a set shape;
- means for maintaining a point of said central longitudinal axis of said forming member in a stationary position relative to the longitudinal axis of said feeder member;
- and
- means for moving the casting apparatus relative to the concrete mix fed to the forming member.
4 more elements
Dependencies are inferred from the claim text.