US1300788A - Regulator for furnaces. - Google Patents

Description

e. M. TAGGAHT.

REGULATOR FOR FURNACES. APPLICATION EILED JULY 16. 1918.

- 1,300,788. Patented Apr. 15,1919.

2 SHEFTSSHEET le. M. TAGGABL REQULATOR FOR FURNACES. APPLICATION FILED JULY 16. 1918.

1,300,788. Patented Apr. 15,1919. V 2 SHEETS-SHEET 2.

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gwuamtoz GEORGE M. TAGGALRT, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALF T0 SILAS H. YERKES, OF PHILADELPHIA, PENNSYLVANIA.

REGULATOR FOR FURNACES.

Application filed July 16, 1918.

To all whom/it may concern:

Be it known that I, GEORGE M. TAGGART, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented,

a furnace until after they have been burnt.

Thus my invention serves as a fuel economizer due to the retention of the gases and other products of combustion until they have been consumed within'the furnace.

Another object is to so construct my invention that it can be regulated to properly proportion the amount of draft to the chimney from the furnace during the normal operation of the furnace. I

A still further object is to makemy invention of a simple and durable construction and so that it can be quickly and cheaply applied to furnaces, stoves, and heaters of various descriptions.

These objects, and other advantageous ends which will be described hereinafter, I attain in the following manner, reference being had to the accompanying drawing in which V Figure 1 is a side elevation of a furnace having my invention attached thereto.

Fig. 2 is an enlarged side elevation of my invention, 7 r

.i Fig. 3 is aninverted plan View of Fig. 2, Fig. 4 is a sectional elevation of my invention, and

r Fig. 5 is a sectional plan view taken on th line 55 of Fig. 4.

Referring to the drawings, 6 represents a furnace having an outlet flue'pipe 7 which extends to the chimney (not illustrated).

The device of my invention is interposed between twosections 8 and 9 of the flue 7 and, specifically, consists of an upwardly tapered box 10 which isrectangular in cross section, as shown in Fig. 5.

Specification of Letters Patent.

Patented Apr. 15, 1919.

Serial No. 245,171.

This box includes a bottom plate 11 having a central hole 12 therein into which fits a coupling collar 13 which is adapted for connection with the section 9 of the flue pipe 7. The box 10 at opposite sides of the plate 11 has openings 14 and 15. These openings permit air to enter the box in an upward direction for a purpose hereinafter descibed.

The opposite sides 16 and 17 of the box 10 taper upwardly to the top 18, and the top 18 is intersected by an upper collar 19 which is adapted for attachment to the section 8 of the flue pipe 7 Two flat plates 20 and 21 form regulating doors and have their lower edges pivotally mounted in sockets 22 and 23, respectively, which are, in the present instance, illustrated as a part of the plate 11. The doors 20 and 21 are of such size as to extend from the level of the plate 11 to the top 18 when the plates are in vertical positions. Also, these doors 20 and 21 extend from side to side of the box, as clearly illustrated in Fig. 5. Thus when the doors 20 and 21 are in their vertical positions, as shown in Fig. 4, they prevent air, which enters through the openings 14 and 15, from passing into communication with the interior of the upper collar 19. Thus the openings 14 and 15 are cut ofl to the chimney. I

By the construction and arrangement of the doors 20 and 21, as above described, they are mounted so as to pivot on their lower edges within the sockets 22 and 23; hence the box 10 and has a two-armed'lever 25' connected thereto and positioned within the box. This lever 25 has its opposite ends pivotally connected to the respective doors 20 and 21 by links 26 and 27. The outer ,end of the shaft 24 is provided with a segment 28 having a handle 29 thereon. The segment 28 has a slot 30 concentric with the axis of the shaft 24, and a clamping bolt 31 extends through the slot 30 into the front of the box 10 and by the use of the bolt 31 the segment 28 can be secured in various pivotal positions.

It will thus be noted that by moving the segment 28 by the handle 29 the shaft 24 will be rocked and the above connection will serve to move the doors 20 and 21 toward or from each other within the box 10. Thus when the doors 20 and 21 are moved close to each other, for example as shown by the dot-and-dash line position in Fig. 4:, the outlet from the furnace to the chimney will be narrowed and the draft through the furnace will be reduced. At the same time air can enter through the openings 14 and 15 so that there will be a suction produced due to the draft of the chimney.

By having the doors 20 and 21 arranged as indicated they taper upwardly when moved together and thus serve as a check to keep the major portion of the gases and other products of combustion within the furnace until they have been burnt. Also, the tapered or inner position of the doors 20 and 21 produces an injector for the products of combustion passing through the space between the upper ends of the doors so that after the gases pass upwardly beyond the doors they expand within a comparatively large space and thus tend to retard the upper'passage of the gases through the section 9 of the flue pipe 7. The coupling collars 13 a nd19 actually form continuations of the flue pipe 7.

It will be noted that the doors 20 and 21' perform two functions. They serve as restricting members for the gases and other products of combustion, and also serve as they are moved inwardly to contract or reduce the outlet passage for the gases, they proportionately increase the opening or passageway for the incoming air. Hence it will be understood that by a single movement of the handle 29 in either direction the proper amount of air and the proper outlet passage for the gases and products of com bustion can be secured.

In starting the fire it is preferable that the doors 20 and 21 be moved to their full open position, such for example as shown in full lines in Fig. 4c. The arrangement of the doors permits a full draft to be attained for the reason that no portion of the plates are in the path between the upper and lower collars.

After the fire has been oncestarted the doors 20 and 21 can be moved toward each other to any extent according to the requirements of the furnace.

In View of the fact that my. invention holds the gases of combustion in the furnace until they are burnt, there will be practically no smoking of the furnace. 7

While I have described my invention as taking a particular form, it will be understood that the-various parts of my invention may be changed without departing from the spirit thereof, and hence I do not myself to the precise construction set forth, but consider that I am at liberty to make such changes and alterations as fairly come within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A device of the character described including a box having a bottom plate with a hole therein; a coupling collar adapted to fit within saidv hole; a coupling collar in communication with the top of said box and above said first coupling collar whereby products of combustion can pass through said first coupling collar, thence through said box, and finally out through the top coupling collar, said plate having openings oppositely disposed at both sides of said first coupling collar and open to the atmosphere, said box including sides tapering upwardly from said plate at the outside of said openings and other plane parallel sides extending between said first two sides; and plates having their bottom portions pivot ally mounted within said boxand adapted to be moved toward each other between the planes of said parallel sides to vary the amount of products of combustion passingthrough said box and to permit air to pass through said box through said openings, substantially as described.

2. A device of the character described in cluding'a box rectangular in cross section I cline in opposite directions so that said sides taper upwardly from the bottom to the top edges thereof, the other sides of said box' extending between said edges and extending at oppositely disposed inclines to each other from the top to the bottom edges of said first sides; a plate forming the bottom of said box and having a central hole therein for attachment of a coupling collar, said plate extending between and supporting the bottom edges of said box sides and havingopenings between the bottom edges of said second mentioned sides of the of said latter portion of the plate between In testimony whereof I have signed my the openings and said hole; and doors name to this specification in the presence 10 llnountedi within said biox arid haviing tllieir of two subscribing witnesses.

ower e ges trunnione wit in sai soc ets whereby the upper edges of said doors can GEORGE TAGGART be moved toward and from each other in the Witnesses:

space above said hole, substantially as de- SILAS H. YERKES,

scribed. AUGUSTUS B. Corrns.

00p!" of this patent may be obtained for five cents each, by addressing the commissioner of Patents.

wumnmn, D. 0.

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