US339966A - Ventilating attachment for heating-stoves - Google Patents

Description

(No Model W. M. BRINKERHOFF.

VENTILATING ATTACHMENT FOR HEATING STOVES. No. 339,966.

Patented Apr. 13, 1886.

Q I IIITIIHIII:

UNITE TATES XVARREN M. BRINKERHOFF, OF AUBURN, NElV YORK.

VENTILATING ATTACHMENT FOR HEATlNG-STOVES.

SBECIEICATION forming part of Letters Patent No. 339,966. dated April 13. 1886.

Application filed December 26, 1885. Serial No. 186,708.

To aZZ whom, it may concern:

Be it known that I, WARREN M. BRINKER- HOFF, of Auburn, in the county of Cayuga and State of New York, have invented certain new and useful Improvements in Ventilating Attachments for Heating-Stoves, of which the following is a specification.

My invention relates to apparatus for ventilating apartments,and the purpose thereof is to provide simple, effectiveand comparatively inexpensive devices, which, when combined with any ordinary heater, will carry off the lower stratum of cold air lying near or upon the floor of the room and discharge the same into the smoke-pipe at such a point as to enable the latter to carry off the entering current without materially diminishing the draft.

It is especially the purpose of my invention to provide means for the purpose described which may be applied to or combined with a stove or heater of any pattern without any material change or alteration to adapt it to the discharge of the special function mentioned.

My invention consists in the several novel features of construction and combinations of parts hereinafter fully set forth, and specifically defined in the claims annexed to this specification.

In the accompanying drawings, Figure 1 is a view, partly in side elevation and partly in vertical section, illustrating my invention.

Fig. 2 is a vertical transverse section of the elbow shown in Fig. 1, taken at a point between the stove or heater and the upright portion of the pipe. Fig. 3 is a partial side elevation with the pipe in vertical section, showtion a slightly-modified construction. Fig. 4 is a vertical section upon the line 00 7, Fig. 3.

It is a fact of universal experience that in all apartments heated by stoves or heaters of any pattern a cold stratum of air is always to be found near or resting upon the floor. More over, as carbonic-acid gas is one of the products of combustion, and is given off largely by respiration and by the exhalations of plants, and has at an ordinary low temperature a greater specific gravity than atmospheric air, this gas will with others be found in all living apartments lying in large quantities within the lower and cooler air-strata next to the floor. It is evident, therefore, that if this (No model.)

cooler stratum with the poisonous gas mingled with it can be drawn off in such manner as to permit the upper and warmerstrata to descend and occupy its place, not only will the tem pcratnre of the room be equalized and the unhealthy gases removed, but by thus supplying a warm stratum of air next the floor, the consumption of fuel necessary to render the apartment comfortable may be decreased, and the health of thehouse greatly promoted.

It is a further purpose of my invention to provide a construction which shall effect the results proposed without materially obstructing the draft by unduly occupying the draftspace, and wherein the air-duct by which the foul gases and cold air are removed, shall present the maximum surface to the heated products of combustion passing from the stove, whereby an ascending current is established in the ventilating-pipe with the minimum length ofair-duct.

lt is my object, also, to so arrange and combine the parts that the heated currents from the stove shall be swept against the exposed surface of the air-duct, whereby the latter is rapidly heated and an ascending current generated therein.

It is my purpose,also, to give such a relative arrangement to the elbow and the air-duct connected with it, that the two may be readily, permanently, and cheaply connected together to form an entirety, the construction being such that the union between the two shall not be destroyed by burning out the fastenings which unite the air-duct and the wall of the elbow, a result to which the parts might be peculiarly liable, owing to the excess of heat received by the wall of the air-pipe under my arrangement.

The results I accomplish by theconstruction described, as follows:

In the annexed drawings, the reference-letter A designates a'stove or heater of any known pattern. This heater is connected with a smoke-flue by means of an elbow, d g, hav ing a form which is substantially the same as that already in use.

In connection with the elbow d g,I place an air-duct, h, which may be formed in any desired manner, either integral with or joined to said elbow, the preferred construction be- IOC ing that the duct follows the wall of the elbow, lies adjacent thereto, and issuitably connected with or attachedto said wall, with its lower end opening either within or without the wall of the heater, to which the elbow is applied. The duct h may be extended upward beyond the elbow, should this be necessary, in order to give the ascending ai r-current sufficient heat to create a proper draft, and the point of discharge may be placed at any suitable point to effect this purpose. At its lower end the airduct h communicates with a vertical pipe-see tion, b, which may be either within or outside of the heater, its lower open end being brought within such proximity to the floor that it will take up the cold air stratum lying upon or near the same.

It may in some instances be found desirable to place the ventilator-pipe I) either within or the air-duct 71, at its lower end 'to the open end of the elbow, where it may communicate with a pipe within the uptake of. the heater; or I may terminate said duct at one side of the elbow outside the heaterfas in Fig. 3. In the latter case a veutilatingpipe will be necessary, but in the formerit may or may not be uquired, according to the construction of the "stove.

I may form the air-duct integral with the elbow, or I may construct it separately and join it to the elbow; or I may otherwise form and unite the two, myinvention being limited to no special form of constructing or uniting said parts.

In constructing the air-duct I may employ a pipe which is circular; but I prefer to so form it that it shall be elongated in crossscction-that is to say, having two unequal diameters. By such construction I not only avoid any material obstruction of the draftspace, but I obtain a greatly increased heatingsurface, which is directly exposed to the heated currents carried through the elbow.

A damper may be used in the air-duct in any way considered desirable. In the same manner either one or both arms of the elbow may be prolonged beyond the dimensions shown or those usually employed, but without departing from my invention.

-What I claim is 1. The combination, with a stove and its smoke-pipe, of an elbow interposed between the two,and provided with an air-duct following the wall of said elbow and lying adjacent thereto, said duct communicating with the outer air at the end nearest the stove and at the other end discharging into the elbow or be smoke-pipe, substantially as described.

2. The combination, with a stove and its smoke-pipe, of an elbow interposed between the two, and provided with an air-duct following the wall of said elbow, the wall of the el- 6 bow forming one wall of said duct, the latter communicating with the outer air at the end nearest the stove and at the other end discharging into the elbow or smoke-pipe, sub- 4. Thecombination, Wlth a stove, of an 01- 8 bow provided with an air-duct, which follows its wall and'is of unequal diameter in cross-section, said duct communicating with the outer air at the end nearest the stove, and at the other end discharging into the elbow or smoke- 8 3- pipe communicating therewith, substantially as described.

5. The combination, with a. stove and its smokepipe, of an elbow interposed between the two, said elbow being provided with an 0 air-duct following its wall and lying adjacent thereto, and communicating at the end nearest the stove with a ventilator-passage, which extends toward the floor, and at the other end discharging into theelbow orsmoke-pipe, substantially as described.

6. The combination, with a stove and its,

smoke-pipe, of an elbow interposed between the two, said elbow having an air-duet following and lying adjacent to the wall thereof, and loo connnunicating with a ventilator -passage at the end nearest the stove, said ventilator-passage extending toward the floor at a point outside the heater, while the duct discharges into the elbow or the smoke-pipe connected there-.

to, substantially as described.

7. As a new article of manufacture and'sale, an elbow for a smoke-pipe,having an air-duct which follows the wall of said elbow and is permanently connected therewith, said duct no having communication at the end nearest the stove with the outer air and extending toward the discharge end of the elbow, substantially as described.

WVARREN M. BRINKERHOFF. \Vitnesses FREDERICK I. ALLEN, GEORGE W. NELLIS.

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