Abstract: An air conditioning system comprises sensor means arranged at a location for sensing the air condition at said location, and air delivery means arranged at the location, the air delivery means being responsive to the sensor means to deliver air to the location in accordance with the prevailing air condition. The system is particularly useful in a building having a plurality of locations. In this case, separate sensor means and an associated air delivery means are arranged at each location so that a controlled air supply can be delivered to each location in accordance with the air condition at that location and independently of the air condition at the other locations.

Abstract: A system for removing paint from the paint-laden air extracted from a paint spray booth includes an endless paint receiving member formed from a plurality of linked channel members. Each channel member has air inlet apertures in the top surface thereof and an elongate plank arranged beneath said apertures such that air flowing through said apertures is diverted by the plank and deposits its paint thereon. The paint receiving member is circumgyrated so that each portion thereof on which paint has been deposited is subsequently moved through a series of washing baths containing solvents to remove the paint and aqueous solutions to rinse off the solvents.

Abstract: An air conditioning system comprises sensor means arranged at a location for sensing the air condition at said location, and air delivery means arranged at the location, the air delivery means being responsive to the sensor means to deliver air to the location in accordance with the prevailing air condition. The system is particularly useful in a building having a plurality of locations. In this case, separate sensor means and an associated air delivery means are arranged at each location so that a controlled air supply can be delivered to each location in accordance with the air condition at that location and independently of the air condition at the other locations.

Abstract: The invention provides a paint spray booth of the kind having an enclosed chamber defining a working area with a perforate working floor. A sub-floor located beneath the working floor has an opening, or a series of openings, through which air from the working area is extracted together with a scrubbing liquid with which the sub-floor is continuously flooded. According to the invention, sound-deadening means for reducing noise within the working area is located beneath the working floor, and these means comprise, generally, a sound-reflecting baffle plate fitted on one surface with an acoustic material. In a particular form of the invention, the openings comprise tubular outlet structures having downwardly-depending wall members, and the baffle plate surrounds the wall members in the form of a jacket, the acoustic material being disposed within the space formed between the wall members and the jacket. The wall members are perforated to allow sound to pass through into the acoustic material.

Abstract: In an automatic paint spraying apparatus automatic control means comprises two parts, the first part providing programmable control means for determining a desired sequence of operations and the second part comprising position indicating means for generating an electrical digital signal representing the position of a spray gun and comparator means for comparing the signal from the position indicating means with reference signals determining the sequence of operation and providing an output for use in controlling the spray guns, the second part of the automatic control means being arranged for location within a paint spraying area having an hazardous atmosphere.

Abstract: An automobile body is prepared for painting by suspending it roof uppermost from movable conveyor means and moving it first past spraying means which sprays the body at high energy with a phosphate solution so as to initiate a fine crystalline deposit growth on the exposed body panels. The body is then moved roof uppermost into and along a tank containing a flowing stream of phosphate solution, in which it is immersed to a level about that of the window openings. During this movement, a static head of phosphate solution is created in the body so as to generate a flow of the solution from the interior to the outside of the body by flooding the solution under pressure through the window openings. Crystalline deposit growth over the unimmersed upper portion of the body is sustained by spraying the upper portion with phosphate solution.

Abstract: Coating apparatus for coating an article by successive strokes of a coating applicator transverse to the direction of relative movement of the article includes an opto-electrical transducer such as a television camera arranged to view in one vertical window the applicator during its stroke and in a second spaced vertical window an area of the article to be coated, means being provided to store information obtained during a scan of the second vertical window indicating regions of the article to be coated and control means arranged to control operation of the applicator in dependence on the detected portion of the applicator in the first window and the information stored from a previous scan of the corresponding region of the article through the second window.

Abstract: Waste paint which is contained in an aqueous medium which flows from a paint spraying booth is collected by apparatus which comprises a vessel which is located outside the booth and has at the lower portion thereof an inlet for paint laden aqueous medium or for scum from the surface of aqueous medium in a flotation tank, and an outlet at the lower portion for the passage of aqueous medium from the vessel. A paint solids outlet is associated with the upper portion of the vessel and fluid pressure is applied to a raft of paint solids accumulated in the vessel to cause the flow of paint solids from the vessel into a container.