Reinforcement elements for elongate concrete building blocks manufactured by sliding form casting and a method and a machine to produce such elements
AssigneeNilcon Engineering AB
InventorThony Gote Lidstrom
Life of this patent
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Abstract
A reinforcement element intended for essentially U-shaped elongate building blocks manufactured by using the sliding form casting technique. The reinforcment element consists of a plurality of first pretensioned equidistantly spaced steel wires deposited in the longitudinal direction of the block, above or below which wires is positioned, in parallel therewith, a wire net composed of two longitudinal wires and a plurality of equidistantly spaced transverse cross rods the ends of which are bent about the longitudinal wires. The invention likewise concerns a method and a machine to produce such reinforcement elements.
Claims10
A method of manufacturing an improved reinforcement element comprising the steps of
- feeding two steel wires in parallel with one another and spaced a certain distance apart,
- feeding transverse crosswise wire rods having a length exceeding the distance separating said two longitudinal wires towards and against said longitudinal wires so as to allow both ends of said crosswise wire rods to extend beyond said longitudinal wires and to ensure that said crosswise wire rods will be positioned at a certain mutual distance from one another,
- bending said ends of said crosswise wire rods about said longitudinal wires, and
- striking said bent ends with sufficient force to permanently compress the portion of the encircled longitudinal wire to effect a mechanical interlock therewith.
A machine for manufacturing an improved reinforcing element comprising
- members arranged to feed stepwise two longitudinal steel wires in parallel relationship and spaced a mutual distance apart,
- a device to advance equidistantly spaced transverse wire rods towards and against said longitudinal wires in a manner ensuring that said ends of said transverse wire rods extend beyond said longitudinal wires, and
- means to bend said ends of said transverse wire rods about said longitudinal wires and means for striking the bent ends of said transverse wire rods with sufficient force to permanently compress the portion of the encircled longitudinal wire to effect a mechanical interlock therewith.
Dependencies are inferred from the claim text.