Abstract: A slip-form paver is provided which is capable of paving a lane of concrete or other material in much the same manner that asphalt is spread as a top paving surface for a roadway. Spreading and levelling means are not restricted to the space between the traction members of the tractor portion of the machine, but are arranged behind such members so that the slab may be wider than, or offset, with respect to the distance between such traction members. The mounting of the final paving tool is capable of lateral movement independently of the steering of the tractor members so as to enable it to turn on a different radius. The elevation of this tool may also be controlled from a string line or the like so as to provide the desired pavement surface contour.

Abstract: A plenum chamber for an air slide conveyer is provided with two air chambers one within the other. The inner chamber communicates with a medial strip of the membrane which separates the chambers from the rest of the duct through which the material passes when fluidized by air from the plenum chamber. The central air duct also serves to support the membrane which is drawn over it and then clamped between the two halves of the duct. The supply of air to either the outer or inner chamber may be separately shut off. The lower half may be removed as a unit for repair or replacement of the membrane. A novel seal is provided for preventing the edges of the membrane from becoming wet and acting as a wick to moisten and clog the central portions of the membrane.

Abstract: A volumetric batcher is combined with a batch mixer so that similiar batches of powdered fluidizable material such as fly ash can be mixed with constant quantities of water resulting in mixtures having the same moisture. This enables their disposal at a land fill site or the like. To insure that the material in the batcher is settled to the desired degree before the inlet valve is closed, a high level indicator is provided which jogs the inlet valve to retard the rate of flow and this valve is allowed to continue to jog until a short period of time has elapsed during which the high level probe is constantly under the influence of the fly ash, at which time it is completely closed. Additional means are provided for insuring complete discharge from the batcher, measuring and timing the flow of water and removing air from the mixer and batcher during charging operations.

Abstract: An elevator, especially an oblique elevator, has a plurality of telescopic sections, along which a load container is movable. The telescoping of the sections takes place in such a manner that all the telescopic sections move simultaneously in relation to one another, or in such a manner that, as a given telescopic section extends, it takes with it all those arranged after it, as a "pack". For the purpose of locking in any desired position of extension a locking/unlocking device is provided between each pair of adjacent telescopic sections. This locking is effected by the actuation of a draw cable attached to the lowermost telescopic section, the draw cable acting upon an actuating cable which effects the locking or unlocking. The actuating cable runs in tackle block manner around two cable guides, and is shortened or lengthened by the variation of spacing of two cable guides.

Abstract: Apparatus is disclosed for feeding singled can lids from a conveyor to a spreader magnet buffer magazine, the can lids being made of magnetic material. The conveyor has an end roller made of magnetic material, the end roller being positioned adjacent to the magazine. Curved tracks are provided between the end roller and the magazine, the tracks serving to control the direction of movement of the can lids as they move from the end roller into the magazine.

Abstract: An elevating apparatus comprises an inclined elevator and a load-carrying carriage. The inclined elevator comprises a pair of guide rails, and the carriage is movable along the guide rails by means of a cable. The carriage is movable along the guide rails on rollers provided on rocker arms pivotally mounted on the carriage. The upper portion of each guide rail is angled away from the remaining portion of that guide rail, the upper portions of the guide rails defining a horizontal section of the elevator which constitutes a discharge position for the carriage.

Abstract: The invention relates to a load-carrying platform, particularly for moving furniture or the like along an inclined elevator. The load-carrying platform is supported by a carriage which is movable along guide rails of the elevator. Telescopic guides are provided between the carriage and the base of the platform, so that the platform is displaceable in relation to the carriage. Thus, when the unloading position is reached, the platform can be moved, at least partially, through a window opening and into the interior of a house.

Abstract: A telescopic beam comprises a plurality of telescopically-interconnected members which define rails along which a load-carrying tub can move. Means are provided for locking the telescopic members together. The beam is provided with a pair of tensioning cables which bridge several of the telescopic members. The cables are guided by means of spacers attached to the telescopic members.