US1279135A - Air and varnish heater. - Google Patents

Description

C. L. MANVILLE.

AIR AND VARNISH HEATER.

APPLICATION FILED SEPT- 4.1915- Patented Sept. 17,1918.

F|c].1. /Z 6 IL v I 2 i Q G 12 J m M J M a g H Z m" W //\4 .Z

ATTCIRNEYE:

CLAUDE L; MANvILLE, OF NORTH TONAWANDA, NE YORK, ASSIGN'OR To THE RUDOLPEWURLITZER MANUFACTURING COMPANY, OF NORTH TONAWANDA, NEW YORK, A CORPORATION or NEW YORK.

AIR A D vARNIsH HEATER.

Specification of Letters Patent. Patented Sept, 17, 1918.

Application filed. September 4, 1915. Serial No. 49,001.

To all whom it may concern:

Be it known that I, CLAUDE L. MANVILLE, a citizen'Of-the United States, residing at North Tonawanda, in the county of Niagara and State of New York, have invented new and useful Improvements in Air and Varnish Heaters, of which the following is a specification.

This invention relates to a method of and an apparatus for heating varnish and air in the use of the air-brush system of applying varnish to woodwork.

Heretofore, means have been provided for heating either the air or the varnish, but the results have proved unsatisfactory. When the varnish alone is heated, the cold air chills and thickens it, preventing its even flow and producing a comparatively rough or pebbled coating. When the air alone is heated, it fails to break up the varnish granules sufliciently to produce a smooth surface, such as required, for example, for piano cases.

. The object of my invention is the provision of a simple and inexpensive apparatus by which the varnish and air will be heated practically to the same degree, in order to cause the varnish to flow more evenly from the air brush and spread it over the woodwork in a finer and more uniform condition and in comparatively smooth coats, thus requiring less rubbing of the successive coats or applications of varnish.

adapted to be partly. filled with water and which in the example shown in the draw ings is externally screw threaded at its ends to receive internally screw threaded unions or couplings 2 which engage caps 4. Between the opposing ends of the reservoir and these caps, suitable packings 5 are in; terposed. 1 is the valved water-inlet pipe of the reservoir.

' Passing longitudinally and preferably centrally through the reservoir 1 is a steam pipe 6 which serves to heat the water theresteam through it.

Immersed in the Water of the reservoirare two pipes or coils 9 and 10, one for heating varnish and the other for heating air. The inlet ends of these coils pass through one of the caps of the reservoir and are connected respectively with an air compressor or compression tank and a varnish supply tank, not shown, while their opposite ends pass through the other cap of the reservoir and are connected with the usual inlets of the air brush, so that the varnish is sprayed and projected against the surface to be varnished in a common manner. the varnish heating pipe or coil has valves 12 and 13 for regulating the passage of the fluid through them.

14 indicates a water gage connected with the reservoir, and 15 a thermometer also connected therewith for observing the temperature of its contents.

The hot water in the reservoir in turn heats the varnish and air heating coils 9 and 10, and by locating the steam pipe 6 centrally in the reservoir, and the coils 9 and 10 on opposite sides thereof, a uniform therefore smoother and finer-grained, re-

quiring less rubbing to produce the desired ultimate finish and efiecting an important saving in time and labor. Sags or runs which are often caused by .the air brush are also avoided by the use of this heater. The

varnish and japan can also be used without thinning with turpentine, thereby saving one or two coats of varnish on case-work of all kinds.

The air pipe has a valve 11 and Furthermore,- the air pressure may be u materially reduced by the use of this heater,

as the varnish granules are broken up more readily in a heated state and therefore yield to a lighter air pressure which is less likely to produce a stippled efiect than a comparatively high pressure.

I claim as my invention:

1. An air and varnish heater for air brushes, comprising a Water reservoir; means for heating the Water therein, and separate air and varnish heating coils both arranged in said reservoir, whereby the air and varnish supplied to the air brush are heated to substantially the same temperature. I V i 2. An air and varnish heater for air brushes, comprising a Water-reservoir, a

team pipe located cent-rally therein, air and varnish heating coils located in the reservoir on opposite sides of said steam. pipe and extending through the heads of the reservoir, and controlling valves arranged in said coils outside of the reservoir. 7

CLAUDE L. MANVILLE.

Copies of this patent may be obtained for five cents each, By addressing the Gommissionerof Patents. Washington, 13.0.

Images