US1502008A - Tank heater - Google Patents

Description

July 22 1924. 1,502,008

TTTTTTTT ER Filed April 13 1922 Patented July 22, 1924.

warren s'rarss isaaaas FRED A. BAGLEY, Olli CEDAR RAPIDS, IOWA.

TANK HEATER.

Application filed April 13, 1922. Serial No. 552,336.

7 '0 all whom it may concern:

Be it known that I, FRED A. BAGLEY, a citizen of the United States, residing at Cedar Rapids, in the county of Linn and State of Iowa, have invented certain new and useful Improvements in Tank Heaters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to heaters used for keeping stock drinking tanks free of ice in cold weather, and comprises certain improvements in such heaters, and more par ticularly those using solid fuel.

The nature of the improvements will be fully disclosed in the description and claim following, reference being had to the'accompanying drawing, in which Fig. 1 is a section in the line 1-1 of Fig. 2, of a tank heater embodying my invention. Fig. 2 is a plan view of the same, with the cover removed. Fig. 3 is a similar view showing a modified form of the heater adapted for the burning of long wood.

Referring to Figs. 1 and 2, which represent a coal-burning heater, the numeral 5 denotes a circular receptacle provided with a water-tight bottom 6. In practice the receptacle is formed of sheet steel, tapered somewhat from top to bottom, so that in the event of being frozen in the ice it lifts, instead of being crushed by the pressgre. This shell of steel is welded at its joint and to the bottom, which is of cast iron, and suitably shouldered at 6 The bottom is comparatively thick and heavy, and serves as ballast to hold the heater in its proper upright position in the water, in which it is designed to float. To further stabilize it in this floating position, it is provided with lateral buoys 7, which are air-tight cylinders attached to a band 8 en; circling the receptacle. To the upper edge of the receptacle are welded lugs 9, on which rests the cover 10, giving an air-space between for draft. The cover, which is considerably larger in diameter than the receptacle, has an annular depending flange 10 to protect the contents of the receptacle against rain and snow. At the middle it fits neatly around the smoke flue 11, the lower portion of which, 11, fits on the upturned central portion of the grate 12. This, as shown in Fig. 2 has a radial grid, and rests on brackets 13 welded to the inside of the receptacle at a suitable distance above the bottom to-form an ash-- pan, and allow for the passage of air, and the products of combustion, as indicated by the arrows in Fig. 1.

The same principles are involved in the modified form shown in Fig. 8, but in this case the shape is long and rectangular, so that stove-wood, or even longer lengths may be burned, instead of coal.

The operation of the device will be readily understood. The cover being removed, fire is kindled on the grate, and when well under way suflicient fuel is added to insure combustion, but at a slow rate, for a day or so. The .draft,- as will be evi dent, passes from top to bottom of the fuel bed, and out through the central flue, combustion being complete and economical. This is continued from day to day, until the ash-pan may need emptying, when the cover, flue and grate are easily removed, and the ash-pan cleared of ashes.

It will be evident that the heat will be diffused near the surface of the water in which the heater floats. The effect is toclear such surface of ice, and without wasting fuel in heating the water to any considerable depth, the only real necessity being to give access to water instead of ice.

By this arrangement of a central flue and a surrounding grate the heat is mostly disposed at the outside of the fire-pot and next to the water and ice, with resulting economyand efficiency.

Having thus described my invention, I claim:

In a heating device for tanks having a centrally apertured marginal grate carried by a supporting receptacle and provided with an upwardly and inwardly inclined annular flange surrounding said aperture, a flue carried by the grate andarranged centrally of the receptacle, the wall of the supported end of the flue being uniformly,

downwardly and outwardly flared and adapted to be seated upon the annular flange surrounding the aperture in the grate In testimony whereof I affix my signa- Whereby to form a fire box above the grate tnre 1n presence of two wltnesses. having a gradually decreasing Width from the top of the receptacle t0 the grate, and FRED A. BAGLEY. a flue passage having a gradually decreas- Witnesses:

ing diameter from the grate t0 the top of F. W. ARMSTRONG,

the receptacle. D. L. VVOOD.

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