US2048777A - Paint drier - Google Patents

Description

y 1936- R. 5. BROWN PAINT DRIER Filed June 11, 1934 ATTO RNEY'S Patented July 28, 1936 UNITED STATES PATENT OFFICE ram'r mum.

Raymond s. Brown, Detroit, Mich. Application June 11, 1934, Serial No. 730,159

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The invention relates to apparatus designed for use in the drying of paints and lacquers and it is the object of the invention to obtain a'portable construction particularly adapted for use in repair jobs. To this end the invention consists in the construction as hereinafter set forth. In the drawing: Fig. l is a side elevation of the apparatus;

Fig. 2 is a front elevation thereof; Fig. 3 is a cross section on line 3-3, Fig. 1; Fig. 4 is a cross section through the electrical service cable. y

In repair paint jobs such for instance as the refinishing of a portion of an automobile body, it .is essential to closelymatch the color of the surrounding portions. It is also highly desirable,

that the work should be quickly finished so as to diminish the time in which the automobile is out of service. with lacquer finish and also certain synthetic paints, the drying may be. expedited by the application of heat. In case, however, of a repair job where the area to be repainted is surrounded by an old portion, care must be exercised in the application of heat. This is for the reason, first, that there is a slight change in color or shade during drying under heat and it is therefore important to stop the process when the color of the new work matches that of the old; second, it is undesirable to heat the formerly finished surface. My improved apparatus is adapted for limiting the application of heat to the refinished area, and is so constructed that it may be conveniently applied to any portion of the surface of an automobile body or other object to be refinished. The construction is also one which can be used in any paint shop which is supplied with an electrical service.

In detail, A is a. tubular standard having a suitable base B and a telescopic extension C which may be raised or lowered and secured in any position of adjustment by a clamp D. At the upper end of the extension C is a clamping head E for adjlgltably securing a laterallyextensible arm F. At e outer end of this arm is' an L-shaped bracket G terminating in a radially serrated circular head G engaging a. correspondingly serrated head H on an arm H. A clamping screw I passing axially through these heads serves to secure the same in any desired position of relative angular adjustment. J is a hollow disk pref erably formed of two pressed sheet metal cupped members secured to each other by bolts J engaging abutting peripheral flanges J. The front face of this hollow disk has a series of apertures 65 uniformly distributed over its area, each adapted to receive an electrical socket K for holding an electric bulb or other radiant heater L. Surrounding these sockets and secured to the-hollow disk J are concave reflectors M preferably of a a parabolic form and so arranged with respect to 5 said sockets as to place the bulbsor heaters in proper focus. The reflectors M are of such diameter as to extend into close proximity to adjacent reflectors so that the entire area of the disk is covered thereby. Housed within the hollow disk 10 J are suitable electrical connections to the several sockets which are supplied with current through a conductor cable N passing through an aperture in the rear face of the disk.

With the construction as described, when the device is to be used for drying a refinished area, such for instance as a portionof an automobile body, the standard A is moved into proximity to the body and the telescopic extension C is adjusted to the properheight. If the surface to be finished is oblique to the perpendicular, the lateral arm F may be adjusted to provide clearance.

for rocking the hollow disk J to the proper angle which is accomplished by loosening the clamping screw I and adjusting the serrated heads G and H. "According to the size of the area to be heated, the operator mayuse one or any number of the heaters L, the others being thrown out of action by loosening up the same in their sockets. Also the extent of area and the intensity of the heat may be adjusted by moving the disk towards or from the finished area. Thus the heating of the finished surface may be accurately controlledin extent, intensity and time.

As most shops are provided with a three-wire electrical service, I preferably divide the heating units, placing substantially one-half on one side and the other half on the other side of the circuit. A three-wire service cable N is used for supplying the current and the cross section of the conductors in this cable is less than would be required in a two-wire system. Thus the size of the cable is diminished, which is more convenient with a portable apparatus.

What I claim as my invention is:

said sockets housed within said hollow head, a cable for supplying current to said connections and a standard on which said head is universally adjustably mounted permitting of the directing of radiant heat at any angle towards the surface to be finished.

2. An apparatus for heat-treatment of painted surfaces comprising a hollow disk head having apertures in its front face distributed over the area thereof, electrical sockets secured within said hollow disk in alignment with said apertures, radiator heater units secured to said sockets and concaved reflectors surrounding said heater units, said reflectors extending into proximity to each other and together covering substantially the entire area of the disk heat, electrical connections to said sockets housed within said hollow disk head, an electrical service conductor therefor, a standard, a horizontal arm mounted on said standard to be adjustable vertically, horizontally and rotatively, and a mounting for said hollow disk at the outer end of said arm including a clamp permitting rotative adjustment about an axis transverse to the axis of said horizontal arm whereby said disk is universally adjustable to any angle and into any plane parallel to the painted surface under treatment.

RAYMOND S. BROWN.

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