Fig. 66.—The "Paasche" Sprayer.
This spraying machine is manufactured by the Paasche Air Brush Co., 9, South Clinton Street, Chicago, in various sizes, for spraying by compression air liquids of all kinds. The above illustration shows what is known as the "Three in One" quick action model "S" brush, and is recommended for use with heavy material. Instead of the paint pot being at the top an underslung jar with aluminium cover as shown on the lower part of Fig. 67 may be used. This figure shows the same air brush or sprayer with one gallon container; in either case the spraying of the colour or material is quickly done. The flow of the liquid is entirely independent of the air circulation. An agitator is provided to keep the material well stirred, and should be used with all liquids which have a tendency to settle, such as bronzes, enamels, paints, etc. The coupling or taper stem of the flexible metal tube or bottles are easily detachable, and one material after the other can be used without stopping. If the underslung jar or the gravity pot be used no agitator is necessary.
This instrument is made in much larger sizes. The general form of apparatus is shown in Fig. 68, the special finishing hood with exhaust fan being in this case employed, while a paint container is suspended on an adjustable stand. In this case a chair is shown being painted.
Fig. 67.—Larger Size "Paasche".
A somewhat novel apparatus for separating oil and water is that shown in Fig. 69. This is constructed to obviate the trouble which is sometimes caused by the oil and water in the air main mixing. It is connected at the end of the air main as close to the air regulator or air outlet to the brush as convenient. Oil gets into the air main through the piston of the compressor, and will in time saturate the walls of the air pipes. The condensation of water which is due to changes of temperature makes the iron pipes sweat, and a considerable amount of water is accumulated in this manner. The simple appliance shown in the illustration will remove this.
Fig. 70 shows the Paasche Automatic electric controller which is used for automatic starting and stopping motor driven compressor outfits where from 1/8th to 1 horse-power motors are used.
