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Publication numberUS324106 A
Publication typeGrant
Publication dateAug 11, 1885
Filing dateFeb 25, 1865
Publication numberUS 324106 A, US 324106A, US-A-324106, US324106 A, US324106A
InventorsJohn L. Hamilton
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Heating and ventilating apparatus
US 324106 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

(No Model.) 2 Sheets-Sheet l.


No. 324,106. Patented Aug. 11, 1885..

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(No Model.)


2 Sheets-Sheet 2.








SPECIFICATION forming partI ofLetters Patent No. 324,106, dated August 11, 1885.

Application filed February 25, [885. (No model.)

The invention consists in the peculiar con.v

struction and arrangement of hot-air fines and passages, air-chambers, and Ventilating-dues with a tire-'place in the lower room and its smoke-flue, all as hereinafter fully described and claimed.

` Reference is to be had to the accompanying drawings, forming part of this specication, in

which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a perspective view of my improved heating and Ventilating apparatus as applied to heat two rooms', one above the other. Fig. 2 is a vertical sectional side elevation of the same. Fig. 3 is an enlargedfront sectional elevation, partly broken away. Fig. 4. is an..

enlarged side elevation, partly broken away,

and in section on the line x x, Fig. 3, an-d Fig] 5 is a sectional 'plan view taken on the .line y y, Fig. 3and partly brokenaway.

'The letter A indicates a fire-place shown without a grate 5 but'it may havea grate tted in it, if desired. At-B is shown a hood tted,

tightly over the dre-place and at the lower end of an air due or chamber, C, which extends upward through the lower room, D, to the close horizontal partition or wall E,which is about on a level with the door of t-he upper room of the building.

A smoke-flue, F, leads from the hood B up through the air-chamber C and partition E, and through an air-chamber, G, opening at g into thc upper room H, and the due F passes also through the partition I, forming the top of chamber G, into an upper smoke-due, J, which extends through the roof to receive a chimney top or cap of any approved design. The hot-air outlet g may be covered by a screen, K, of any suitable character.

The re-place A is peculiarly constructed as follows: I make its exposed back and end walls of common or tire-clay bricks a and hollow cast-metalchambers a, preferably of like size with the bricks a. and open at their backs, said chambers a being made preferably of castiron-onefourth of anA inch thick, and laid in the fire-place walls end to end, and alternately with 'the bricks a. Between every layer of bricks a and metal chambers c,I set the metal plates L, which range horizontally aroundl therre-place and cross a space, M, about four inches (more or less).in width, and the outer parts or edges of the plates L are set into the common hard-bri ck wall N back of the space M. The ends of every alternate plate L at the opposite sides and front of the lire-place are cut away at the space M, as at Z, and an airinlet, O, is provided at one side of the tireplace front next the floor. With this construction the space M is divided vertically by the plates L into a seriesof smaller chambers, m, opening into each other alternately at the front of the re-place at both sides, so that 'cold air entering at O will pass around one chamber mfto the opposite or left side and front of the fireplace to escape at Z into the next' higher chamber m, and will travel back through thisy chamber to escape at the right side ot' the fire-place into the next higher chamber, and so on, the air passing entirely varound the fire-place as it rises to each successively higher chamber m of the series, and

from the upper chamber m, and preferably at or near the center of the back wall of the `iireplace,'the air,l admitted at O, now thoroughly heated, will enter a flue, I), which ranges upward and opens at p into the upper hot-air chamber, G, and pass to the upper room, H, for heating it,vthe re in the fireplace A thus serving to heat both rooms D and H, the flue F giving oit' heat directly t0 room H, where it passes through the airchamber G.

It is evident that the hollow metal chambers a readily take up the heat from the lire in re-place A and give it off to the circuitous chambers m, and as many of these chambers a will be used as the weight of the upper duewalls will allow, so as to secure maximum heating effect on the air passing to the upper room, H.

The passage of the smoke-due F through from the chamber C to the roon1,throngh which the air of the room may circulate.

In the smoke-flue F is pivoted the damper j', the stem f of which passes outward through one of the passages Q R, preferably the upper one, R, as shown, and has suitable connect ing-rods, s S, with any suitable detents, allowing the damperf to be set for controlling the draft of the fire on the hearth.

The lower room, D, will be Ventilated directly through the hre-place A and due F, and for Ventilating the upper room, I-I, I provide an air-ue, T, which ranges through the het wall at the side of the hot-air and smoke iiues G J, so that an upward draft is induced in said ilne T, which has an opening at t into room H, near the iloor, and an upper opening at 1.', communicating with the liuc J, and also with the room H near the ceiling, and the opeuingst t have any suitable registers or valves, U V, respectively fitted to them in room H, either of which may be opened to ventilate the room into iue J from the top or bottom, as may be preferred.

At NV is shown a cap covering an opening, fw, into the upper smoke fine, J, which cap may be removed for cleaning out the soot from the ilue J, as may be required.

Any suitable pipe receiving air from out` side the building may connect with the airiulet O or passage m, so that pure warmed air may be supplied to the upper room, H, instead of admitting the airdirectly from the lower room through the inlet O, as will readily be understood.

I may make the hollow air-chambers a', built in the fire-place wall, of material other than cast metal, the object being to secure by said thin chambers the quick continuous pas- Y sage er radiation of heat from the fire-place to the air-passage m around it.

In building the fire-place A into a wall where it has to support considerable weight of superstructure, the hollow chambers a and solid brick a will be built up in columns, so that the columns of brick a will sustain the weight, and without danger of crushing the hollow chambers a'.

It is evident that the flue P may consist of a common stove-pipe run up through or along side of chamber C, instead of being built into the wall, as shown, and when such a pipe-ilue is used it will give off considerable heat to the chamber C, for distribution to the lower room through the openings Q R.

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

l. In heating and Ventilating apparatus, the fire-place A, built with hollow walls forming an air-space, M, a series of plates, L, set across space M and cut away alternately at the ends to form a circuitous passage, m, provided with an air-inlet, andthe exposed wall of the fireplace provided with hollow air-chambers a', substantially as herein set forth. y

2. In heating and Ventilating apparatus, the combination, with theiire-place A,constructed with hollow walls forming an air-space, M, a series of plates, L, set across space M and cut away alternately to form acircuitous passage, m, having a cold'air inlet, and the air-chamber a', built in the hre-place wall of the air-flue P, communicating with passage m,and leading to an upper room to discharge hot air therein, substantially as herein set forth.

3. In heating and Ventilating apparatus, the combination, with the ireplace A, built with hollow walls forming an air-space, M, aseries of plates, L, set across space M and cut away alternately to form a circuitous passage, m, having a coldair inlet, an air-flue, P, leading upward from passage m, an air-chamber, G, in the upper room, into which the flue P discharges the hot air, and the smoke-fine F, leading from the fire-place A and passing through chamber G, whereby the air escaping from passagel m is further heated by the flue F on its way to room H, substantially as herein set forth.

4. In heating and Ventilating apparatus, the combination, with the fire-place A, hood B, fixed therein, and smoke-fine F, of the airchamber C, inclosing ilue F above the fireplace, and the hot-air-circulation passages Q It, arranged one above the other in the side wall of said chamber, connecting it with the lower rooln, substantially as herein set forth.

5. In heating and Ventilating apparatus, the ventilatinglue T, made in the heated wall along the hotair chamber G and smoke-fiue J, and communicating by the lower passage, t, with the upper room, H, and by upper passage, t', with room H and flue J, substantially as herein set forth. b

JOHN L. HAMILTON. Witnesses:

D. Bonera, H. O. BOEGLE.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6019099 *Feb 17, 1998Feb 1, 2000Heat-N-Glo Fireplace Products Inc.Heat removal system for fireplaces
US6830550Jun 25, 2002Dec 14, 2004James Lee HedgecockStair step voltage actuated measurement method and apparatus
US8978639Oct 14, 2011Mar 17, 2015Hearth & Home Technologies, Inc.Secondary room air heat exchanger and method of heating secondary room air
Cooperative ClassificationF24B1/1885