USRE6294E - Improvement in hot-air furnaces - Google Patents

Description

JAMES e. wunnoin or rrrrs-BURG, PENNSYLVAMA.'

' |mPuovisnpllalnli' IN HoTvAlRiFuRAQ'x-:si

I Speciication forming part of Letters Patent No.v 119,955, dated Octoblr 17, 187.1; reissue No. 6,294, jdated v I February 16, 1875; application filed November 30, 1874.-

To all whom 'it may concern:

, y Be -t-known that I, JAMES G. WELDoN,

of Pittsburg, in the county of Allegheny and Stateof Pennsylvania, have invented certain new and-useful'lmprovements in Hot-Air Ap paratus; and'I do hereby declare that the following isa full, clear, and4 exact description Y, thereof, that will enable others skilled in the art to which it appertains to make and yuse [the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of Athis specification. i

^ This invention relates to an improvement in that class of hot-air apparatus used for the artificial..warming-.obuildiiigspvhereiu atcur..`

rent of air is made to pass througha series of'tortunus ilues or passage-ways, generally stacked together, over and around a furnace, in such 'a manner as Ato heat th'e air by contact on its way through them to the rooms or chambers to be heated. i l

. My invention consists in the` means I eml ploy for generating-steam,' and introducing'it j in to the-air-passages around theoutside ofthe furnace, so 'that all'the ingoing currents of air'shall absorb it, and thereby become' ade-v quately-tempered, and, to a great degree, re-

ompensed 1.for' the loss'of natural. moisture,

I andby which the original vitality'of the atmosphere is maintained, consequently betterI iittedfor respiration, and adapted to comyIn the accompanying drawings, Figure `1 represents a side elevation of a hot-air apparatus, partly perspective and partly' in sec-- tion.' with my swam generating npplylng contrivance attached.' Fig. 2 is 'a view 'of the lowp'ortion of 'a heating apparatus, showing .all my improvements-in, vertical transverse section f For the purpose of my invention, I construct a hot-air furnace, with its air-dues, passageways, and Aair-heating spaces, 1n any of the forms in use', and with'all the usualappliances and Vappendags'as incident -tosuch apparatus;

-but' in addition I. place onvfthe outside of the furnaceA and its casing Ba small tank, C,

provided with an automatic .arrangement for regulatingv to it a supply of ivaterwhich ar'- rangement consists in attaching Ito 'the cock oi' the vfeed-pipe n one end of a lever, m.,.and

to its other end ailoat, p, which rises and falls als the 'supply' increases or diminishes, and by this means opens or closes the feed-pipe, as

the case may require. To the bottom of this Y tank C I connect va pipe, D, which may pass downward-into the ain-inlet E, then up inside thecasing B, or it may Pass down and fake a turn upward, outside the casing, aud then unites in either casewithrth'e hollow arm F,

which extends through the walls of "the vfurnace A, and projects a short distance into the fire-pot, so as to be acted upon by direct heat.

Above this hollow arm F,and connected tlieletoby interior communication', is arranged a steamldrmn ..or..chamber, .8, from. the.. top-.off

which extends a pipe, H, that is turned downward to the air inlet or passage, either in a di- `rect vertical line and horizontal continuation, or by a line directly tool; near the mouth of the air-inlet, where it terminates in au open end, as shownin the figure.

rthe outlets R.

Such isthe construction vand relative position otparts that on a supply of water being let into the tank C it will ilow down the bent tube D, and from thence into the hollow arm F, so as to nearly llgitywhemon tire being vkindled in the 'furnace A, steam will lsoon be generated inthe hollow arm, and will pass up into the chamber S, and thence, by the pipe H, to its ppjen end, and willthere escape through the openings therein, into the air-duct E, where,

by'mingling with the inowing currentofpout v side air, it-hydrates `the'whole body of air toi g `be heated, and it will be carried upwardand around the heating-surface of the furnace, ad-

ding a moderate, agreeable, and -.healtl1ful quantity of moisture, such as can be produced in no other way; for unless the intlowing current be hydrated all at once, some portions will not receive 'any moisture.

I amaware that 'the employment in connec-4 y tion with a hot-air furnace of a steam-genera- Ator, from which steam may be injected into the hot-air space surrounding the furnace, for

PATENT OFFICE! the-purpose of hydrating the air,is not, broad 1y, new in this case. l

The peculiar and novel feature of .my invention consists in the construction andarrangef ment of an apparatus which will generate steam and conduct it downward to the air-in-4 f let of air-heating space, and allow thesteam` to escape at a point and with such volume as will insure.the vmoisitening of the whole body f incoming air to be heated and transmitted,v the devices heretofore used being capable of only partially hydrating the air, and therefore of little or no practical utility.

Having fully described-my invention. what Iclaim in Letters Patent is- Y' y The method'of generating steam and introducin g it into the air-passages of an airlheating apparatus, by passing the water for the production oi such steam into Va hollow arm, F,

so extending through the'walls of the furnace i and into the re-box, as to lbe acted upon-by erated, bymeans of suitable pipes H, into the air-passages E, leading to and around the out# side of said furnace, in the manner shown andset forth. Y

having asteam-generator; of an educLion-pipe let of the*l air-heating chamber, substantially as shownand described, so as to meisten the whole body of incoming air.

In testimony that I claim. f have hereunto set my hand this^17th day of November, 1874.A

Witnesses:

P. B. REILLY, T. J. MCTIGHE.

direct heat, and conveying the steam so. vgen- 2. The combination, with allot-air furnace leading downward from said. generator, and having 'open communication with the air-inthei foregoing I- JAMES e. WELDON.

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