US833638A

US833638A - Heater for incubators.

Info

Publication number: US833638A
Application number: US28840905A
Authority: US
Inventors: Orlando P Shoemaker
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-11-21
Filing date: 1905-11-21
Publication date: 1906-10-16
Anticipated expiration: 1923-10-16

Description

PATBNTED OCT. 16,1190@ i o. P, SHOEMA'KBR. HEATER PoR INCUBATORS.

APPLICATION FILED NOV. 21. 1905.v

.Ufzaww/wwffgw Attorneys n UNITED sTATEs PATENT OFFICE.

ORLANDO SHOEMAKER, OFl CLAY CENTER, NEBRASKA. l HE/iTr-:FrFon I NcuBAToRs. l

To all whom it may concern/b Be it known that I, ORLANDO P. SHOE- MAKER, a citizen of the United States, residing at Clay Center, in the county 4oi Clay and StateofNebraska, haveinvented a new and useful vHeater or'lncubator's, of which the elements of the apparatus.. l l

' A further object of the invention is to obtain a maximum -radiatmg-surface for heatzo ingthe Water Without increasing the size of the heater andto obtain an effective circulation of the Water. v

Another object of the invention is toeffect an automatic control of thefheater by the z 5 temperature of the chamberto beheated in order that said chamber may be maintained ata uniform temperature irrespectivel of the riserand fall ofthev temperature externally of thechamber.- l

It is-alsoproposed to enable the convenient adjusting -ofthe re dating mechanism Without dismantlingthe eater.

,Withtheseand other 'objects in viewthe present invention consists in the combina- 3 5 tion and arrangement of arts, as Will be `hereinafter more fully'descri ed, shown in the accompanying drawin s, 'and particularly pointed out in the appen edclaims, it being understoodl that changes in the fo rm, proportion, 4o' size', and'minordetailsv may be made Within the' scope of the `claims Without departing from tliev's )iiit or sacrificing any of the advantaeesfo the invention. In the drawings, Figure lis ajperspective v view of a heater ofthe resent invention applied .t'kan incubator', t V`e top of .the incubator bein removed anda portion of the case thereof.` eing-brol{e1;\J-. avvay.,to ldisclose the regulatingmeans. .Fi .'2'is anenlargedzver- 5o tical sectional view oft elboiler'and heatingy drum thereforf Fig. 3 is adetail'cross-sec-'l tional view ofthe boiler. 'f

` Like characters of reference designate cerrespending .p rlts: ineach-of the. severalgur'es n b'oilerand .its lower end dis osedbelouTY the For an adequate understanding'ot the Specification of Letters Patent. l unmanned Noventa 21,1905. sprinnazeafioa l Patented oct. 1e, 190e.

plication and operation of the present inventin a conventional-form of incubator has been shown at 10 in Fig. ofthedrawings, the top ofthe incubator being omitted..

The present heating system includes aradiator 11, which extends around the inner Walls o f the incubator adjacent the topthereof, sofas to carrythe heated Water entirely around the incubator and into -the corners thereof. Ordinarily the box or case di an incubator is s uare or rectangular in'forni,

and therefore t ie radiator is made up of four successively-connected lpipe or iue `sections arranged inthe formvof a rectangle. A crossilue 16 connects opposite sides of the radiator. Communication etween the cross-iiuefand each adjacent side of the radiator isf' had tor from that side which is connected directly .to the heater for the purpose of compensating for the reduction of the temperature of the water at its remotest point from the heater. That side ofthe radiator which is tobe connected to the heater is provided about mid- Way of its ends With a plug or partition 15, and atthe opposite sides ofthis partitioninduction and eduction pipes 13 and14 lead outwardly from the radiator and pass through suitable openings formed in the adjacent side of the incubator.

The Water-heater incl des a boiler. made up of outer andinner

concentric shells

18 and 19, the annular space between the shells beving closed lat its upper and lower `-ends by means of. top and 'bottom piecesf21 and 22.

`A duct 6r passage 23 is located Withinthe annular Water-space 20, the upper end of the passage being 'closed by the top 21 and its ower o en end 'being adjacent the bottom of the boi-er. The induction-pipe 14 pierces the outer boiler-'shell 18, in communication `AWith the upper `portion of the duct 23, While; the eduction-pipe '13 communicates directly` jwith the" interior Ao1 the boiler.y It'willl here be explained that the'boiler'is suspended from the

pipes

13 and 14. A suitable'filling- "spout24 is providedl in one side of the boileradjacent its top andhas a suitable closure V25.' A

Independent of theboiler and concentrically embracing'- the same isa shell 30, having itsopen `upper end terminating shortof the lo'vver end of the boiler and aving a bottom 3 1 pierced by an upwardly-tapered open-ended lamp-chimney l29, which rises within the boiler and projects a suitable distance below the bottom of the shell. 'This chimney is adapted to fit the burner 28 of a lamp 27, and

` heater for applying and removing a lamp. It

willzhere be explained that the lamp carries the chimney 29 and the shell 30, so that when .the lamp is removed the shelll and chimney are removed therewith `without disturbing theboiler.

-When the lamp is burning, the heated prod-v ucts of combustion will pass up through the chimney and the central hot-air flue of the boiler, defined by the inner shell 19, while some of the products of combustion will pass upwardly through the annular Hue-passage formed by the 4outer shell 18 of the boiler and the fine-shell 30, whereby the boiler has inner and outer heating-surfaces, which materially remotes the heating of water. It will here e e lained that when vthe' water b'ecomes heate circulation takes place from the boiler through the pipe 13A into the radiator and then back through the pipe 14 into the duct 23 and thence downwardly to the bottom of y the boiler, whereby the relatively 'cool water 1s returned into the bottom of the boiler, so as to insure the proper circulation of the water.

It is proposed to regulate the paths of theproducts of combustion by the temperature within the chamber defined by the walls of the incubator, and this will be accomplished in the following manner: A damper 33 is provided for the top of the hot-air fiue tluough the boiler, and this 'damper is carried by the -long end portion of avertically-swinging lever 34, fulcrumed adjacent its other end upon a bracket 36, projecting outwardl from the adjacent side of the incubator. threaded link 43V is loosely hung from the short end of the lever and passes loosely through a perforation in the free end of one arm 41 of a bellcrank klever which vwb'rks through an opening in the ,adjacent wall of the incubator. Upon the lowerend of the link 43 there is an adjusting-nut 43a, which bears against the lower side of the arm 41 of the bell-crank lever.

The bell-crank lever works in a tubular sheathor case of the outer end with an external annular flange 44, rigidly connected to the outer face of the in- 42, which pierces the adjacent wall cubator by means of suitable fastenings.

arm 41 works.

The outer closed end of the tubular sheath is prvidedwith a vertical slot 4.5, in which the At the point of juncture of the arms -39 and 41 vof, the bell-crank lever saidlever is made substantially circular or in the form of a disk which has a working fit in incubator and is provided upon its the inner end of the sheath within the incubator and carries upper andlower spaced substantially horizontal thermostatic 'disks 38, which are hollow and contain a suitable liquid, which expands quickly under the infiuence of heat. The lower free lend of the arm 39 of the bell-crank lever engages the upper thermostatic disk, whereby the lever is actuated by the rise and fall of the thermostatic members, due to the expansion and ,contraction, and hence the damper 33 will be raised and lowered accordingly. v

Whenthe lamp is first lighted, the thermostatic members 38'are in their normal conditions, whereby the arm 39 of the bell-crank le- Ver will be at its lower limit and the damper 33 will be closed. In this condition thedraft of.

the lam is indirect-that is to say, the heated. prol uctsy of combustion vpasspupwardly from the'himney 29v into` thej'gboiler flue, thence down into the'drum orshell 31 and upwardly through the latteratfthle outside of the boiler, whereby the inner'anvd outer surfaces of the boiler are subjected to' theheated products of combustion, so as to quickly and uniformly heat the Water.` As the water becomes heated it circulates through theradiator and back into theboiler, thereby heating the compartment 10 by radiation. .As the temperature riseswithin the compartment the thermostatic members 38 expand, thereby tiltingdownwardly the arm 41 of the bellcrank lever,and thus lifting the damper 33, whereby the indirect draft of the lamp is gradually reduced until the temperature reaches a predetermined high degree, when the damper will be entirely open and the draft will be direct upward and outward through the open top of the boiler-Hue. When the damper is entirely open, .the heated products of combustion escape quickly through the top of the boiler-flue without materially heating the boiler. Hence the boiler cools off and the temperature in the compartment 10 is reduced. As the action of the regulator is automatic, the temperature of the chamber or compartment is maintained substantially uniform.

From the foregoing description it will be understood that the boiler and the thermostatic regulator are, carried by the incubator, While the heating-drinn 30 and the chimney 29 are carried by the lamp. Hence the heating-drum is removed with the lamp when the latter is to befilled Without disturbing the boiler and the regulator. It will also be noted that .by having thel boiler provided with a central heat-flue'the available'heating-surface of the boiler is ractically doubled, thereby insuring a uic and uniform `heating of the water, as' al arts thereof are subjected to th heat of the amp.

IOC

IIO

' 1. -A Water-heater comprising a boiler having an open-ended heating-flue passing therethrough, outlet and return pipes for the boiler, a passage Within the boiler return-pi e to the bottom of the boiler, a

drum em' racin and spaced from the boiler to forman ann ar flue-space, the drum being independent of the boiler with its upper end open and its lower end closed, and a chimney piercingthe bottom of the drum and entering the heat-flue of the boiler. A

2. Awater-heater comprising a boiler having an open-ended heating-flue passing therethrough, outlet and return pi es for the boiler, a passage within the boiler eading from the return-pi e to the bottom of the boiler, a drum en racin -and spaced from the .boiler to form an annu ar Hue-space, the drum bein independent of the boiler with its up er end open and its lower end closed, a c imney p1ercing the bottom of the drum and entering the heat-Hue of the boiler,l a damper for the upper end of the heat-flue of the boiler, and a thermostatic lregulator connected with the damper.

3. A water-heater comprising a boiler having a heating-liuc passing therethrough, outlet and inletpipes communieating with the boiler, a drum independent of and embracing the boiler with an annular line-space between l the boiler and the drum, the top of the drum being open and its bottom being closed, and a chimney piercing the bottom of the drum and entering the ue of the boiler.

4." A water-heater comprising a boiler having a heating-Hue passing therethrough, outlet and inlet'pipes communicating with the boiler, a drum independent of and embracing the boile with an annular Hue-space between the boiler and the drum, the top ofthe drum being open and its bottom being closed, a

- chimney piercing the bottom of the drum and eading from the,

entering the iue of the boiler, a damper for the open top of the boiler-Hue, and a t ermostatic regulator connected to the'damper.

The combination with a chamber to be heated; of a radiator therein, a boiler connected with the radiator and having a heating-flue passing therethrough, outlet and inlet pipes communicating withvthe boiler, a drum independent of and embracing the boiler with an annular flue-space between the boiler and the drum, the top ofthe drum being open and its bottom being closed, a chimney piercin the bottom of the drum and entering the ue of the boiler, a damper for the open top ofthe boiler-flue, a bell-crank lever plvotally mounted within the casing, an operative connection between said lever and the damper, and a thermostat associated with the inner .ortion of the lever.

6. he combination with a chamber to be heated, of a radiatortherein, inlet and outlet pipes extending from the radiator through one wall ofthe chamber, a boiler supported by the pipes and provided with an upright heating-flue; passing therethrou h, a lamn supported below the boiler, a chimney upon the lamp rising into the boiler-flue, a drum supported by the chimney independent of the boller and surrounding the same to define an annular iiue-space between the boiler and the drum, the bottom of the drum being closed and its to being open, a damper for the top of the boiler-flue, a thermostat Within thej chamber, and a connection between the ther- ORLANDO P. SHOEMAKER.

Witnesses:

OTTO BARTH, L, F. FRYAR.