US728355A - Fireplace-heater. - Google Patents

Description

THOMAS BURNS BAYLESS, OF LEXINGTON, KENTUCKY.

UNITED STATES f Patented May 1e, 190e. PATENT OFFICE.

Fll`1EPLACE-HEATER.

SPECIFICATION forming part of. Letters Patent N 0. 728,355, dated May 19, 1903;

Application led October 30,

To a/ZZ whom t may 00h/cern.: f

Be it known that L'THOMAS BURNS Bev- LESS, a citizen ofthe United States, residing at Lexington, in the county of Fayette and State of Kentucky, have invented certain new and useful Improvements in Fireplace-Heat-` ers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilledV in the art to whichit appertains to make and; use the same.

This invention relates to air-heating de: vices of that class which are mounted in fireplaces or chimneys and through which fresh air is conducted past or in close proximity tothe fire or hot part ofV the Iireplace and. then discharged in heated condition into the room, whereby heatis' obtained n ot only by direct radiation from the burning fuel, Ibutalso by discharge of such heated air, as wellY as by radiation and reilection from the outer walls of the air-heater.

The objectV of the present invention isto provide an improved andexceedingly simple and efficient device of this character which will permit utilization of the heat generated in the fireplace in a most thorough and economical manner.` t

The invention will first be described withA reference to the accompanying drawings, which form a part ofthis'speciiication, and will then be pointed out more particularly in the annexed claim. Y

In said drawings, Figure l isa front view of a fireplace having myimproved heater mounted therein. Fig.,2vis a perspective View of the heater detached. Fig. Sis a central vertical cross-section through the fireplace looking from the left of Fig. 1. Fig. 4 is a central vertical cross-section through the fireplace looking from the right of Fig. l.

The letter A denotes a-replace of ordinary construction,.and Band Cdesignate the front and rear chimney-Walls, While D indicates a grate for supportof fuel, E the ash-pit beneath the same, and F a rear fire-brick or lining for protecting the heater from the fire. ln place of a grate suitable andirons or fire-dogs may be used where wood logs are to be burned, or suitable gas or oil fuel burners may be employed. v v l Myimproved air-'heater consists in the main serian Nt. 129,383. (Numdam of an upright wide but thin or flattishcasing G, fitting, preferably, in the back of the fireplace a'nd having a suitable opening or pipe at the bottom for-admission of fresh pure air y andhavinga suitable opening or pipe at the top for d ischargeof@ hotair into the room or V connected with a'Y tine or Iluesfor conducting the heated air to hot-air registers or radiators in otherV parts of the building, the heater thus acting on the principle of the ordinary furnace. In the present illustration of the invention Van air-inlet pipe H! depends from the bottom of the casinginto afresh-air chamber J beneath the fireplace, and a flue K extends from' the upper partof the casing through the side of the chimney and into the room, into which hot air is th-us discharged, while a due L is also shown for conducting'hot air to anV upper room. This casing G may rest in the door of the lireplace or may be supported with its bottom above the floor, and it may be fastened to the chimney-wall or otherwise mounted in place.. There'brick F is located between the grate andthe lower front part of the casing to prevent the yIire from burning or injuring` the same. The rear face or wall of the casing is usuallytlator plane, as shown, so as to fit closely against `the rear chimney-v wall, while the front face or wall of lthe casing is formed with a forward-projecting part g, preferably immediately above the fire-brick, whereby the thin or shallowspace between the front and rear walls of the casing is increased above the grate, While a horizontal shoulder g is also provided, which rests upon the upper edge of the lire-brick, by which the casing may thus be rigidly supported in place. The casing has alsoa forwardly-inclined top portion g?, preferably of thesame thickness or cross-dimension as the part g. This not only conforms to the ordinary construction of the rear chimney-wall at top of the fireplace,1but such forwardly-inclinedpart of the casing overhangs the fire, and is thusy acted on by the ascending heat, so that'theairin the` casing is continually heated as it rises until it reaches its dischargepipe oru'e. The iiue g.

K, as shown, extends laterally from one end of this inclined part gz'of thecasing andupwardly through the side of the chimney', so .thatthe hot air will readily ascend there- Ico through. The fresh air admitted through the l lower inlet-pipe passes up through the casing in a wide thin sheet, which is thus heated easily to very high degree. In the lower part of the casing the airis heated at the outset by reason of its proximity to the re, and is thus expanded as it ascends into the upper thicker or increased part of the internal chamberof the casing, and as it passes up through said upper part ot the casing and forwardlyinclined or overhanging part still in a comparatively thin sheet it takes up more heat from the rising flames and heat from the burning fuel, and this is expanded more and more, so that it is forced up through the lues and discharged.

It will be observed that the airinlet pipe H is located at the left-hand side ofthe heater or casing, while the air-exit iue is located at the opposite or right-hand side. By this arrangementthe air is prevented from rising quickly in a vertical column and is compelled to spread out and pass in a sheet across the whole width of the casing, thus taking up a great amount ot' heat.

As is Well known, in the ordinary roplace about two-thirds ofthe heat goes up the chimney and is wasted. By means of myimproved heater nearly half of this Waste heat may be utilized.

The heater maybe made of cast-iron, preferably in an integral or unitary part, and the fines made of sheet metal, or both may be constructed of any suitable metal and in anyr suitable manner. Two small knobs g3 are A fireplace-heater consisting of a wide thin casing adapted to fit in the back of the fireplace, and through which air ascends in a thin sheet, said casing comprising in a unitary structure a vertical member having a fiat back and a front projecting abruptly forward at its upper part, thus providing a horizontal shoulder to rest ou the {ire-brick placed against the lower front and enlarging the internal space transversely above the re-brick, and a forwardly-inclined or overhanging member extending from the top of said Vertical member and of substantially the same thickness as the upper part of the latter, `together with a lower pipe or opening for admission of fresh air and an upper flue or opening for discharge of hot air leading from said forwardly-inclined member, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS BURNS BAYLESS.

Witnesses:

JOHN L. BURNS, R. RICHARDSON.

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