Abstract: An apparatus for cooling castings and cooling and drying moulding sand, comprising a horizontal drum rotatable about its longitudinal axis and having an inlet opening for castings and casting moulds at one end and an outlet opening for castings at the other end. The drum wall first has an impermeable part which is followed by a perforate part for the discharge of moulding sand. An underlying descriptive line of the drum viewed in the direction from the inlet end to the outlet end slopes upwardly at least for a part and this gives rise to several embodiments.

Abstract: The invention relates to a device for spreading distributable material, for example, fertilizer, comprising a hopper containing the material and having an outlet port, communicating with a distributor pipe adapted to swing to and fro, to which a bracket is fastened; the bracket favorably affecting the distribution pattern of the material to be deposited. The invention has for its object to improve the action of the distributor pipe so that a more advantageous distribution pattern is obtained; the invention provides a device in which the bracket holds a deflection member arranged behind the exhaust opening of the distributor pipe, viewed in the direction of flow of the material, the operative surface of the member being at an acute angle to the direction of flow; a further object of the invention is to improve the connection between the bracket with the deflection member and the end of the distributor pipe so that a ready exchange becomes possible.

Abstract: A device for delivering one by one an essentially rectangular object of lenticular cross section from a pile of said objects having non-uniform, different thicknesses, said device comprising a plate supporting the pile, a stop surface standing on the supporting plate in front of one transverse edge of the objects and terminating at a given distance above the supporting plate to form a delivery gap and a catch operating in a direction towards the stop surface for conducting away the lowermost object through the gap in a direction of length wherein the improvement comprises one upright peripheral strip of the stop surface extending down to the supporting plate and at right angles to the stop surface, along the other peripheral strip thereof, a second stop surface is provided which is set back at the level of the gap over at least the width of one peripheral strip, the distance between the second stop surface and one peripheral strip being smaller than the width of the object; and a pressing member acting substa

Abstract: A lightweight grab stick incorporates a hand grip with trigger pull action. The support column and swing leg are of channel form and the trigger rod is connected to a control link member. The tips of the support column and swing leg are flattened to provide gripper jaws. The control link member is pivoted at triangularly spaced points respectively to the support column, the trigger rod and a pull rod which is connected to the swing leg. The control link and swing leg are on opposite sides of the support column and the pull rod protects through the support column. A guide prevents lateral motion of the swing leg.

Abstract: Paint-laden air extracted from a paint-spraying booth is scrubbed by passing the paint-laden air together with a flow of water through at least one tube which extends downwards from the floor of the booth to a position spaced from the bottom of a water-container. A perforated baffle is located between the bottom of the water-container an an air velocity control opening associated with the tube, or one with each tube, the opening being of lesser cross-section than the tube and the perforations small as compared with the opening. A first stage separation of paint from air is effected by impingement against the baffle, a second stage by impingement of paint-laden air which passes through the perforations against water on the bottom of the water-container, and a third stage by passage of air through an annular curtain of water formed between the control opening and the surface of water in the water-container.

Abstract: A butterfly valve comprising a housing in which a flat flap having an elastic rim is adapted to turn between a position in which the plane of the flap is parallel to the axis of the flow passage across the housing and a position in which the elastic rim is in sealing relationship to a seat arranged all around the axis of the passage across the housing, said seat having the shape of a cone surface, the apex of the cone being located outside the axis of the flow passage across the housing, wherein the sealing surface of the seat forms part of an oblique circular cone, the circular base of said cone being at right angles to the axis of the flow passage of the seat.