US1088658A - Orchard-heater. - Google Patents

Description

J. L. HAMILTON. ORCHARD HEATER.

APPLICATION FILED APR. 19, 1913.

Patented Feb. 2

INVENTOR- ATTORNEY WITNESSES! ykjfiu JAMES L. HAMILTON, 0F GRAND JUNCTION, COLORADO,

Specification of Letters Patent.

Patented Feb. 24, 1914.

lpplication filed April 19, 1913. Seri'al No. 762,294.

To all whom it may concern:

Be it known that I, JAMES L. HAMILTON,

a citizen of the United States of America, and resident of Grand Junction, county of Mesa, and State of Colorado, have invented certain new, and useful Improvements in Orchard-Heaters, of which the following is a specification.

This invention relates broadly to heating apparatus, and specifically to a novel and improved construction of orchard heater.

The primary object of the invention is to provide an orchard heater of the oil-burning type which is pecially designed for burning licl uid fuel or oils of low grade, as asphaltum 01 s.

- In burning low grade liquid fuels, as asphaltum oils, in vessels wherein the flame is permitted to play over the entire surface, the richer, or more volatile, portion, which is uppermost in the vessel, burns first; thus the grade of the fuel becomes poorer as the bottom of'the vessel is approached, resulting incombustion or vaporization of the fuel becoming slower and the heat generated gradually growing less.

It is therefore an object of this invention to provide an orchard heater wherein the flame is permitted to play over a relatively small partonly of the surface of the oil in the container, or vessel, and wherein the oil is permitted to feed to the combustion point from the bottom of said container, resulting in the grade of the fuel supplied to the burning point being maintained substantially uniform until all is consumed.

A further object of the invention is to provide a heater of the character fmentioned in which a blast of air is directed upon the surface of the burning oil, resulting in said oil burning with a blow torch efi'ect.

With these and other objects in view, the invention resides in the construction, arrangement and combinations of parts herein after described and/illustrated in the accompanying drawings, in which Figure 1 is a top plan view of the invention; Fig. 2 is a longitudinal section of the same,-taken on' the line 2-2, Fig. 1; Figs. 3 and 4; are transverse sections taken, respectively, on the lines 3-3 and M, Fig. 1; Fig. 5 is a section on the line 5-5, Fig.2, showing a modified form of guides for the damper; Fig. 6 is a section somewhat similar to Fig. 2, showing a plurality of draft container.

tubes; and Fig. 7 is a view somewhat similar to Fig. 4, illustratinga modification.

I Referrin to said drawings, in which like reference 0 aracters distinguish like parts throughout the several views--1 indicates an 011 receptacle, or container, which is herein shown as being rectangular in shape, but which may be of any other suitable form. Removably mounted upon the to of said container is a shield 2 of downwar ly dished, or pan-like, form having laterally directed terminal flanges 3 which rest upon and project laterally beyond the top edges of the Extending downward through an-opening provided therefor in the bottom of said shield or pan 2 adjacent to one end of the latter is a sheet metal. fire-box 4:, open at both ends, which has a peripheral out: wardly directed flange 5 at its upper end mounted upon the bottom of said pan about the opening in the latter, whereby said firebox is suspended from said pan with its lower end elevated slightly above the bottom of the contain r.

.Resting upon the flanges 3 of the pan is a lid or covert, herein shown as flat, which has its lateral longitudinal edges turned under, as shown at 7, to constitute guideways in which the longitudinally extending flanges 3 of the pan are received, said cover thus being adapted for sliding longitudinally with respect to said pan in effecting the mounting and removal thereof. Provided in said cover over the position occupied by the fire-box 4 is one ormore draft-o enings 8 designed to admit air to said fireox for facilitating combustion of fuel contained in the latter. The volume of air permitted to enter the fire-box is controlled by a regulating damper 9 which is slidably mounted in a position permitting of closing off of one or all of said openings. As shown, said damper is slidable between a pair of oppositely disposed guide-flanges 10 mounted on opposite sides of said draft opening, or which may be formed by striking u strips of metal from said cover in a \vel -understood manner, as shown at 1O in Fi 5. A collar 11 is formed on said cover 6 a out an opening provided in the latterat the end opposite that which overlies the fire-box, and mounted about said collar is a tubular plpe or stack 12 through which the products of combustion from the fi e-box are discharged,

said products being directed thereto through 110 the space afiorded between the cover 6 and the bottom of the pan, as indicated by ar rows in Fig. 2. I

As fuel is consumed in the fire-box, oil 1s fed thereto from the container, the oil level in said fire-box and container being obviously maintained equal. And,since the oil supply to the fire-box must enter through the lower end thereof, which closely approaches the bottom of the container, it will be understood that the entrance of the lighter, most volatile portion, which lies on the surface, prior to the heavier bottom 011 is prevented, and that, as a consequence, the quality of the oil supplied to the fire-box will be maintained substantially uniform until all has been consumed.

For facilitating combustion when the fuel has burned down somewhat, that is, when the fuel lowers to a point where the drafts of air entering through the draft-openmgs 8 do not strike forcibly upon the surface of the fuela draft tube is provided, the same being suspended from and opening through the cover 6, whereby air is conductedclose to the surface of the oil. When the 011 has burned down, uncovering the lower end of such draft-tube, the air rushes through said tube in'the form of a blast, producing upon the surface of the oil a flame which resembles or closely approaches that of a blowtorch. The fuel in the fire-pot is thus vaporized and burned rapidly, producing a high degree of heat in which the carbon and other-smoke and smut producing elements is largely consumed, but little smoke and smut being permitted to issue from the stack.

It will be obvious that a plurality of draft tubes as 13 and 13 and having different 6 lengths may be projected into the fire-pot as V shown in Fig. 6 so that they may be successively uncovered as the fuel is lowered.

While'it is not the purpose of the device to heat and vaporize the fuel contained in the receptacle or container outside the firepot, some gas is of course generated within said. container. To permit this gas to escape. an opening 14: is provided in the bottom of the pan, preferably at a point directly in line with the center line of the stack.

While the cover 6 is shown to be flat in Figs. 1, 2, 3, 4 and 6, the same may, 'if desired, be made in the same form as the pan 2that is, dished as shown at 6 in Fig. 7-

. 5 in which case it will be disposed in a reversed position when mounted in place, thus increasing the capacity of the passageway for the products of combustion from the fire-pot to the stack, as is clearly illustrated in said Fig. 7.

Having thus described my invention, what- I claim as new, and desire tosecure by Letters Patent, is-- 1. An orchard heater comprising an oil as container, a downwardly dished shield mounted over said container, a fire-pot projected through and depending from said shield adjacent to oneend thereof, a cover mounted over said shield and supported at a distance from the bottom of the latter, said cover having closable draft-openings therein over the position occupied by said fire-pot, and a stack mounted on said cover at a point remote from said draft-openings.

2. An orchard heater comprising an oil container, a downwardly dished shield mounted over said container, a fire-potprojected through and depending from said shield adjacent to one end thereof, a cover mounted over said shield and supported at a distance from the bottom of the latter, said cover having closable draft-openings therein over the position occupied by said fire-pot, a tube depending within said fire-pot from said cover, and a stack mounted over said 35 cover at the end opposite that which overlies the fire-pot.

3. An orchard heater comprising an oil container,= a. downwardly dished shield mounted over said container, a fire-pot projected through and depending from said .shield adjacent to one end thereof, a cover mounted over said shield and supportedat a distance from the bottom of the latter, damper-controlled draft openings in said cover over the fire-pot, means for directing v blasts of air directly upon the surface of the oil in the fire-pot, and a stack located on said cover at the oppositeend of the latter. 4. An orchard heater comprising an oil container, a downwardly, dished shield mounted over said container, a fire-pot projected through and depending from said shield adjacent to one, end thereof, a cover mounted over said shield and supported at a distance from the bottom of the latter whereby a passagewayis afforded between them forthe products of combustion from the fire-pot, damper-controlled draft-openings in said cover over the fire-pot, and a -,stack mounted upon the end of the cover opposite that which overlies the fire-pot and having communication with said passageway.

5. An orchard heater comprising an oil container, a downwardly dished shield mounted over said container, 3. fire-pot projected through and depending fromsaid shield adjacent to one end thereof, a cover mounted over said shield and supported at a distance from the bottom of the latter whereby a passageway is afforded between them for the products of combustion from the fire-pot, damper-controlled draft-openings in said cover over the fire-pot, a tube for conducting air directly to the surface of the oil in the fire-pot, and a stack communieating with said passageway to permit products of combustion to issue therefrom.

6. An orchard heater comprising an oil container, a downwardly dished shield to the fire-pot, and a stack mounted on said 10 "mounted over said container, said shield havcover at a point remote from the fire-pot.

ing laterally projecting flanges along its In testimony whereof, I alfix my signalongitudinaledges, a fire-pot projecting ture in presence of two subscribing witnesses. through and depending from said shield, a

cover mounted over sald shield and having JAMES HAMILTON turned-under longitudinally extending edges Witnesses:

1 able relation to the shield H. E. DUNLAP,

in embracin sl' flanges, reglfiatable means for admitting air L. D. Momus.

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