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468 ough than the use of the hand brush. To a much lesser extent this method has also been adopted for applying paint to the ship’s structure during construction, and even less so dur- ing the service life of the ship after completion. For this reason it would seem to be worth while to illustrate and describe an efficient spray painting equipment. This equipment consists of an air gun which takes the place of the brush and by means of which the paint is sprayed on, the necessary air and material hose and the mate- rial pressure container operated by available air supply on board or about the ship or by means of an individual air compressor unit driven either by an electric motor or a small independent engine. The equipment illustrated and de- scribed herewith is manufactured by the Binks Spray Equipment Co., 3126 Carroll avenue, Chicago. To obtain a perfect spray coating which is more durable than the hand applied, per- fect atomization must take place, permitting the fine particles of paint pigment and carrier to knit together and create a more binding degree of adhesion than in any other manner. The gun shown in the accompanying illustration has straight frictionless side air ports which gives a flat spray without great pressure drop. Com- Rfressed air when released through these side ports expands to a degree before striking the material. The ait ports are brought close to the mate- rial outlet and the expansion of the air is confined to the grooves. There- fore, a finer atomization is produced, due to the expansion of the material assisted by the patented method of directing the compressed air in the spray gun. The first pull of the trigger re- leases a clean blast of air for dust- AIR THE CONNECTION AT BOTTOM OF ‘HAN- DLE IS FOR THE AIR. PRESSURE WHILE THE CONNECTION NEAR THE NOZZLE IS FOR THE MATERIAL GUN USED FOR SPRAYING ‘PAINT. MARINE REVIEW December, 1925 SPRAY GUN AND PAINT CONTAINER WITH LINES OF HOSE FOR THE AIR AND THE MATERIAL. THE SECTION OF HOSE TO THE RIGHT IS FOR AIR FROM THE COMPRESSED AIR RESERVOIR ing off the surface to be coated. A further pull of the trigger produces a perfect spray uniform across its entire width. This enables an opera- tor to work close to the surface plac- ing materials exactly where directed, thus eliminating waste and excessive spray mist. Large flat surfaces are covered with a horizontal or vertical flat fan-form spray, whichever is con- venient for the operator. For nar- row surfaces or trim work the round spray is used. No time is lost in changing the position of the sprays, as this is done by an instant adjust- ment requiring only a touch at the noz- zle head. The amount of paint or cover- age desired is regulated by a material control adjustment. The mechanical construction of the gun is simple and sturdy so that it will stand up against hard usage. For painting surfaces where it is necessary to reach some distance, as froma staging on the side of a ship, extension handles can be provided. Paint materials or fluids which are to be applied are placed in a con- tainer and sufficient pressure is sup- plied by regulation to insure a proper and constant flow of paint through the hose to the gun. It is very import- ant to have a correctly designed pressure container. Simple regula- tion by the operator is a first con- sideration. The pressure containers supplied with this equipment and shown in the accompanying illustra- tion have a well designed control head fitted with two pressure regula- tors. One of these governs the work- ing pressure of the gun and the other controls the material flow through the hose to the gun. The regulators are fitted with pressure indicating gages and necessary fittings and safety re- lief valves arranged and mounted for balance and convenience. The head of the container is secured to the body, a drawn steel tank, by tog- gle bolts for ease and speed of re- moval and replacement. The tank opening corresponds with its diam- eter, thus permitting the insertion of inner receptacles or liners. It is, therefore, possible instead of placing the paint or fluid directly in the pres- sure tank, to place these materials in containers which are then inserted into the pressure tank. This makes it possible to change quickly to dif- ferent colors of paints or materials without the necessity of cleaning the container between each refilling or change of materials. Each pressure container is furnished with one inner receptacle constructed of heavy tin and fitted with inside hand grips. Not only thus proper paint spray equipment offer great economies in time and labor costs, but a_ better appearance and a .more_ thorough coating is insured for all surfaces. Every little crevice and inaccessible corner is sure to be reached when paint is applied with spraying equip- ment, specified for this purpose. Good painting protects the surface it cov- ers and the resulting neat appearance signifies care and progressiveness and constitutes a real asset. A clean, neat, well kept up ship is likely to be a well run ship in every other respect and therefore pays well.