US1440409A - owens - Google Patents

Description

Jam. 29 w23. 31A4A U 9 S. H. OWENS. FUEL SAVER.

FILED MAR. 6. 1923- ,2 SHEETS-SHEET 2 glu/undo@ SAMUEL -I. O'WENS, 0F EVELETH, MNNESOTA.

FUEL SAVER.

Application filed March 6, 1922.

To ai@ whom t muy Be it known tha l, a citizen of the Unite Eveleth, in the county o of Minnesota, have in ful Fuel Saver, of Wh a specification.

This invention relates to a vice for stoves, furnaces erected, or may oe built as heating unit at tie til/ne of r i.

@ne object of the invention vision of a device that may be z st/n. ,n such position Within the tire be); as to cause combustion of the fuel to taire place tivi. about the outer edges .t the bultr Another object of the invci .ion t application of the device as a draft regir lator.

Still another object is the provision of novel means for adjusting t". f serve as a draft regulator.

@ther objects Will present them,s the description proceeds, it boing province of the disclosure to mprore erally and to enhance the utiln.;77V of dei, of that class to which the present invention belongs. It also being understood that slight changes may be made Within the scope of what is clamed Without departing from the spirit of the invention or sacrifie ing any of the advantages thereof.

ln the drawing forming a part of the specification- Figure 1 is a vertical sectional. view of a stove With the invention applied thereto.

Figure 2 is a plan view of the dislr forming a part of the present invention.

ligure 3 is a detail sectional plan view of a portion of the device.

Figure 4 is a view in side elevation of a modiiied form of operating means for the device, the heating element being shown in section.

Figure 5 is a modified form of the device parts being` shown in section and parts in elevation.

Referring to the drawing by characters of reference, the numeral. 1 designates the body of a heating stove, having a grate 2 and a top 3. lin zulapting` the device to a. stove as illustrated in Figure 1. an opening 4 is formed in the top of the stove and tube 5, having an attaching flange 6, is secured over opening, bolts .7 bei: used of fuel.

Serial No. 541,419.

for thisl purpose. A cap 8 is screw threaded to the upper end of the tube 5. A stem 9 passes through an opening in the cap 8 and extends down through the tube and into the stove. dish or plate 10 is secured to the lower end of the stem or rod 9, the diameter of the disk being somewhat less than the internal diameter of the stove at the fuel level. A tube 11 is loosely mounted in the opening' 4 and has a cap 12 Which rests on the top of the stove, supporting the tube Within the combustion chamber of the stove Where' it surrounds the rod 9 protecting` it from the intense heat of the said chamber.

ln practical operation the disk 10 is lowered on the top of the fuel bed, this prevents the draft of the chimney from having any effect on the fire except about the outer edges of the fuel bed, With the result that combustion takes place at the outer edge of the fuel. The products of combustion being directed by the plate 10 against the sides of the stove greatly increasing the heating effi ciency of the same. When combustion of this outer ring of fuel has sufficiently proceeded the plate 10 is raised and the inner portion of the fuel bed permitted to burn, the dislr then forming a deflector to direct the heat to the shell of the stove. By raising the plate 10 to the position shown by dotted line in Figure 1, an effective damper is produced. rlChe converging side Walls of the stove acting in conjunction with the plate to restrict the chimney draft to a greater degree as the plate is elevated. In any of its positions the disk serves to prevent undue draft at the center of the fuel bed, which results in a more evencombustion of the fuel.

Means for supporting the disk at various elevations in the combustion chamber may consist of a spring actuated latch 13, pivotally mounted on the cap 8 and adapted to engage any one of a series of notches 14 formed in the rod 9.

ln attaching the device to a furnace or other larve heater, a device such as shown in Figure 4 is provided, which comprises a frame 15 secured to the top of the furnace. A cord or other flexible element 16 is secured to the rod 17 which supports the deflecting plate 18. rlhe cord is trained over guide sheaves 19 located at the top of the frame and then leads to a drum 20, Which is mounted for rotation on the frame. A crank handle .21 employed for rotating pawl 22 and ratchet 23 prevent retrograde movement ot the drum, supporting the plate at any desired elevation in the lire box.

ln stoves the side" walls of which are parallel as illustrated in Figure 5, a `liange 2d may be cast integral with the side wall or otherwise attached thereto and a truncated dome shaped member 25 rests on the said iiange. The member 25 has a.y dralt opening 26 through which. projects they stem 27 of the plate 28. Lugs 29 space the plate 28 from the opening 26 and prevent closure of the draft opening when the plate is elevated to the limitof its movement.

lty is to ber understood ot course that the plate l() although illustrated being. round may be rectangular or of any other con figuration.

Having thus described the invention, what is claimed is:

l. A device of the class described coinprising a heater having converging` side walls and a plate within the heater andinounted for vertical movement whereby the effective draftfarea between the periphery of the plate and the side walls of the heater is increased or diminished.

raad/ice limit the draft in the heater.

3. ifi device of the class described compris ing a heater having upwardly and inwardly inclined side walls a plate mounted iiorfvei tical movement within the combustion chamber of the heater, the plate being adapted to coact with the side walls of the heater to limit the drai't opening in the heater and means for raising and ior locking the plate in adjusted position. l

4l. A device as set licrth in claim 25 and further characterized by the tact that said means comprises a stem having a series oi" notches and a latch secured to the heater, and adapted to engage' the notches.

.ln testimony that l claim'the foregoing as my own, l have hereto ailixed my signature in the presence oi" two witnesses.

` n SAMUEL H. @l/WENS.

lllitnesses A. I. NAsLUND Gr. B. GABLE.

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