Concrete slab forming machine
OwnerArvids Kalnsinventor
Life of this patent
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Abstract
A machine for forming concrete slabs by a continuous process without using conventional casting forms. This requires that the consistency of the concrete mix be such that the concrete will be self-supporting before it has hardened. The machine to be disclosed is designed to utilize self-supporting concrete mixes of the optimum consistency, and enables close control of the forming process at each phase of the operation. The machine includes a carriage that is advanced by winch and cable along a track over a flat surface. A portion of the carriage coacts with the flat surface to form a mold cavity, and concrete mix from a hopper mounted on the carriage is delivered to the cavity by a novel feed and packing arrangement. Vibration means are associated with the mold cavity to consolidate the concrete mix and improve its flow.
Claims11
A concrete forming machine adapted for movement along a track over a flat surface comprising a carriage a portion of which coacts with the flat surface to form a mold cavity, a plurality of core members disposed longitudinally in the cavity in spaced parallel relation to each other, a hopper for a concrete mix mounted on the carriage, primary feed means in the carriage for delivering concrete mix from the hopper to an area adjacent the forward ends of the core members and for packing the mix above, below and between the members, said primary feed means having a portion thereof extending in front of the forward ends of and below the upper surfaces of the core members, secondary feed means in the carriage for delivering concrete mix from the hopper to an area above the core members at a point spaced rearwardly from the forward ends thereof and for packing the mix above and between the members, and power means on the carriage for advancing it along the track.
A concrete forming machine adapted for movement along a track over a flat surface comprising a carriage having a top plate spaced above the surface and a pair of side members the lower edges of which terminate in close proximity to the surface, the top plate, side members and surface forming a mold cavity, a plurality of core members disposed longitudinally in the cavity in spaced parallel relation to each other, a common support for the core members, the support being mounted in the carriage and connected to each core member adjacent the forward end thereof, a hopper for a concrete mix mounted on the carriage above the mold cavity, primary feed means in the carriage for delivering concrete mix from the hopper to an area adjacent the forward ends of the core members and for packing the mix above, below and between the members, said primary feed means having a portion thereof extending in front of the forward ends of and below the upper surfaces of the core members, secondary feed means in the carriage for delivering concrete mix from the hopper to an area above the core members at a point spaced rearwardly from the forward ends thereof and for packing the mix above and between the members, and power means on the carriage for advancing it along the track.
Dependencies are inferred from the claim text.