US2340601A - Outdoor furnace - Google Patents

Description

Feb. 1, 1944. L. LANGFORD 2,340,601

OUTDOOR FURNACE Filed April 12, 1941 v LeonarcLLany/ord INVENTOR amyimr,

' AWTOR N EYS- Patented Feb. 1, 1944 UNITED STATES PATENT OFFICE 2,340,601 i oUirnooR FURNACE Leonard Langford, Brownsville, Tex. Application April 12, 1941, Serial No. 388,313

2 Claims.

This invention relates to outdoor furnaces, and more particularly to those-which utilize some liquid fuel such as crude oil.

In furnaces of this type, commonly called incinerators, the basic fuel is refuse or trash, and for that reason it does not always maintain a uniformly high combustibility, because there may be a relatively large amount of incombustible material therein. Accordingly, some kind of oil must be added as an aid to combustion, the usual method being throwing the oil in the same door that the trash is put in. This is highly inefficient and also creates a fire hazard. I realize that some furnaces have been developed to overcome this disadvantage but, so far as I am aware, no one has developed a device having the particular advantageous combination and arrangement of parts of that embodied in my invention.

The object of this invention is to attain uniform combustibility in an incinerator.

Another object is to save fuel oil in the operation of an incinerator.

Another object is to utilize the heat given off from an incinerator for a useful purpose, such as heating Water.

Still another object is an easily constructed and efficient device for accomplishing the above result.

These and other objects may be accomplished by my invention which embodies among its features a furnace consisting of a drum such as an oil drum, with a door cut in its side and a conventional grate and ash pit installed, a chamber in its upper portion to receive water to be heated, a Smokestack also installed in the upper portion, and my improved fuel oil feeding means. The latter consists in a tube extending across the furnace, having oil outlets therein, and rotatably mounted with a cylindrical oil reservoir attached to its end, outside the furnace, so that, when the tube is rotated so the reservoir is upward, the oil will flow through the outlets but when the reservoir is turned down the flow will stop.

Other objects and features Will become evident from the following disclosure when taken in connection with the accompanying drawi in which Figure 1 is a prespective view of my improved furnace,

Figure 2 is a vertical cross-section taken through the same,

Figure 3 is a perspective view of my improved oil feeding device, and

Figure 4 is a partial vertical cross-section of a modification of the furnace.

Referring to the drawing in detail, my furnace consists of a cashing I0, formed preferably of an oil drum or similar metallic container, with a door ll cut in its side and an ash outlet I2 close to the bottom. Inside the casing there is secured a conventional grating l3, and a smoke pipe I4 is attached in suitable manner near the top.

Because my device gives a steady and uniform fire I contemplate utilizing this heat, which would otherwise go to waste, to heat water for laundry purposes, etc. Accordingly, I provide a heating reservoir in the upper portion consisting of a bottom 15, a cover 16, and an outlet ll of any suitable construction. In the modification shown in Figure 4 I run the smoke pipe I4 directly through the heating reservoir, as shown.

My oil feeding means consists of a tube l8 extending diametrically through the furnace and having outlet holes l9 therein. On one end of the tube is a connection, such as a T, 20, to which a cylindrical oil reservoir 2| is attached. It will be noted that when the reservoir is raised the oil will flow into tube l8 and be fed through holes l9 but, when the reservoir is lowered, as shown in dotted lines in Figure 2, the flow of oil will I cease. Compression springs 22 on either end of tube I8 act as a brake thereon to hold the tube and reservoir in whatever position they are rotated to.

There is also a tray or pan 23 attached to tube 18 and lying thereunder to catch oil from the holes. This tray is non-rotatably fixed on the tube by means of a transverse pin 24, and its object is to hold burning oil directly under the water reservoir if desired, or to catch a supply of oil and dump it on the fire when expedient.

It will be seen that by this device, when a trash fire is started in the incinerator, the fiow of oil may be regulated so that a brisk, consuming fire of uniform intensity is produced. This not only causes more complete consumption of trash but also produces suficient steadiness to heat the water in the reservoir. My device is easily constructed of commonly available materials, and crude oil or crank case oil may be utilized. Although a preferred embodiment is described herein I do not wish to be limited thereto but only to the scope of the appended claims.

What is claimed is:

1. In a device for supplying oil to the fuel bed of a furnace, a feed pipe adapted to be rotatably mounted in a substantially horizonal position above the fuel bed in a furnace, said pipe having one end closed and the other end open to provide an inlet and provided with a row of longitudinally spaced discharge openings in one side thereof, a supply conduit connected to the inlet end of the feed pipe, said supply conduit extending at a right angle with relation to the feed pipe and in a direction opposite to that side of the pipe having the discharge openings, an oil container having fixed communicating connection with said supply conduit, and, means on said feed pipe for releasably holding the same in'adjusted angular position.

2. In a device for supplying oil to the fuel bed of a furnace, a feed. pipe adapted to be rotatably mounted in a substantially horizontal position above the fuel bed in a furnace, said pipe having one end closed and the other end open to provide an inlet and provided with a row of longitudinally spaced discharge openings in one side thereof, a supply conduit connected to the inlet end of the feed pipe, said supply conduit extending at a right angle with relation to the feed pipe and in a direction opposite to that side of the pipe having the discharge openings, an oil container having fixed communicating connection with said supply conduit, means on said feed pipe for releasably holding the same in adjusted angular position, an elongated pan pivotally suspended from said feed pipe and disposed to normally assume a position below the discharge openings therein, and an element fixed to and projecting from the feed pipe in position to engage said pan whereby to turn the pan with the feed pipe when LEONARD LAN GFORD.

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