Apparatus for making tiles or slabs
AssigneeRobert Abraham Limited
InventorCharles K. Colley
Life of this patent
Estimating the term…
Abstract
Apparatus for making tiles or slabs such as roofing tiles or paving slabs from castable material, comprises a sequence of platens on an endless conveyor which affords a substantially continuous surface onto which are laid plates and from which dividers are extensible between those plates to sever or at least partially sever a layer of castable material charged and compacted onto the plate. Improvements include selective operation of dividers and their additional provision medially of the platens, selectively operable multiple drill head, charging roller, special plates for tiles to be bent, interlocked drive system.
Claims10
Apparatus for making tiles or slabs such as roofing tiles and paving tiles from castable material, comprising an endless conveyor, a sequence of platens on the endless conveyor forming a substantially continuous surface, a series of plates on the substantially continuous surface, and dividers extensible between adjacent plates to at least partially sever a layer of castable material charged and compacted onto the plates, and further comprising a charging stage for said castable material, the charging stage comprising means for positively discharging the castable material onto the plates on the conveyor and compaction means for bearing down on such positively discharged castable material, and wherein means for discharging castable material comprises a helically bladed roller and a pressure roller, the bladed roller being tapered and indented and having a canted axis to as to be effective to produce a continuous substantially even stream of castable material to a position below the pressure roller.
An apparatus for making tiles or slabs such as roofing tiles and paving tiles from castable material, comprising:
- an endless conveyor means;
- a sequence of platens on the endless conveyor means forming a substantially continuous surface with a slot separating adjacent platens, the platens having first and second lengths;
- a series of plates on the substantially continuous surface;
- a plurality of dividers manually removed from and emplaced in selected slots, and automatically retracted into and extended from the selected slots between adjacent plates to at least partially sever a layer of castable material charged and compacted on the plates, the dividers being selectively manually positioned in slots at first predetermined distances from each other and selectively manually positioned in slots at second predetermined distances from each other enabling the apparatus to produce tiles or slabs of two different lengths;
- first and second track means extending along a length of the conveyor means;
- the plurality of dividers comprising a first and second set of dividers having first and second abutment means respectively, the first abutment means engaging with the first track means and the second abutment means engaging with the second track means, wherein the elevation profile on the first track means causes the first set of dividers to be automatically retracted into and extended from selected slots and the elevation profile of the second track means causes the second set of dividers to be automatically retracted into and extended from selected slots.
Dependencies are inferred from the claim text.