Abstract: A material for use as cat litter comprising a composition of paper machine sludge combined in the presence of water with sodium bicarbonate and a hydraulic cement, dried and crushed to form coarse particles or extruded and chopped up to form pellets. Desirably, the composition includes an anti-static material and coloring.

Abstract: A fluid pump for location within a reservoir and which is operable with rise and fall of liquid within the reservoir. The pump comprises a tube of a resiliently deformable material, an abutment surface which is engaged by the tube and a float device which is mounted to the tube. Liquid entering the reservoir causes upward movement of the float device and such movement of the float device causes increasing engagement between the tube and the abutment surface. The increasing engagement between the tube and the abutment surface causes the tube to deform resiliently and a localized reduction in the contained volume of the tube is thereby effected to cause expulsion of fluid from the tube. Conversely, as the liquid level falls in the reservoir, the float device moves downwardly to reduce the extent of engagement between the tube and the abutment surface, so that the tube tends to resume its initial contained volume.

Abstract: A multi-terminal connector element comprising a stack of alternately arranged conductor grids and spacer grids containing spaced parallel lines of spaced openings which collectively define spaced parallel passages, the axes of which are perpendicular to the planes of the grids, spaced parallel conductors on the opposite faces of the conductor grids continuously extending from edge to edge along the openings with portions extending into the openings, said conductor grids being arranged so that the conductors in adjacent conductor grids are at right angles to each other, wiper bearing elements adapted to be inserted into the passages, mounting wipers which extend radially therefrom and axially spaced therealong a distance corresponding to the distance between conductor grids, said wiper carrying elements being rotatable to move the wipers into engagement with the inwardly extending portions of the conductor elements and conductor elements within the wiper bearing elements connecting the wipers.

Abstract: An air pollution control device for controlling the velocity of discharge from an industrial chimney or smokestack in order to optimize the plume rise and thereby minimize air pollution comprising a variable pitch truncated cone adapted to be mounted at or near the top of the chimney or stack, said cone being constructed to be expandable and contractible with respect to the axis of the chimney or associated flue or flues and kinematic means manually or automatically operable to control the size of the flow path of the gases through the truncated cone.