US508857A - andrews - Google Patents

Description

E. W. ANDREWS'.

IN'UUBATOR.

(N o Model.)

Patented Nov. 14, 1893.

1.-. I l I I l l I I il UNITED STATES vPATENT OFFICE.

, EDWIN W; ANDREWS, or ELMIRA, NEW YORK, AssIeNoR To EMANUEL e ANDREWS. A

INCUBATOR.

's'PnorEIoATIoN arming part of Letters Patent No. 508,857, dated November 14, 1893.

Application iiled December 1. 18.92. Serial No. 453,788. (No model.)

To afl?- wlwm it may concern,.-

Beit known that I, EDWIN W. ANDREWS, a

citizen ofthe United States, 'residing at El will enable others skilled in the art to which 1t appertains to make and use the sanne.v

to obtain by the use of my said invention is to provide and toproduce an incubator of novel construction wherein certain advantages of operation are to be obtained. Specitcally speaking, these advantages consist primarily in th'e production of an` incubator whlchwill be more compact in size and efvfective in operation than those4 incubatore which have been heretofore made, and where- 1n large radiating drums and water are pans made use of. A

Another advantage is in the novel means I have employed in heating the interior of the incubator, or incubating chamber, and in su pplyingthereto the propel` amount of moisture, all of whichI will more fully hereinafter describe and claim.

AF'ora better comprehension of my improved Incubator attention is directed to the accomspecification, and in which- Figure 1 is a top view of the incubator with the cover and lamp removed and showing a port1on of the water drum in section. Fig. 2 1s a v ertical sectional view of the incubator showing the heating apparatus in elevation; Fig. an enlarged elevation of the water drum, showing the air valve therein; Fig. 4 a top view of the lamp burner and one form of regulating mechanism of the same. an elevation-of Fig. 4. f

In all of the above views,corresponding parts are designated by the same letters of reference. f

A represents the ordinary incubating cham- 5o ber, which isto be supported in any way,but

mg. 5 is preferably on suitable legs B. This incubating chamber is provided at one side with the usual doors having glass doors therein, Athrough which the'interior of the incubating chamber may be observed, and by which the amountol:` moisture necessary in theincubator may be determined by the extent of the coudensation thereon, as will be explained hereinafter.

C is a partition mounted Within the vincutending from top to bottom and from side to side, so as to form a smaller chamber C at one end.

Dis another partition arranged similarly to the partition C and near the other end of the incubating` chamber, except that it is provided with an open space beneath its lower end through which the air may circulate out through the opening a.

E is awater drum which is placed within the chamber C at thek upper part thereof, and which is preferably made of sheet metal or cast metal in the form of a hollow parallclogram. This water drum is provided at its central part witha vertical partition bextending from the top to the bottom of said water drum, and with short connecting partitions b', by means of which a secondary chamber F will be formed Within said water drum.

G G are metal pipes which'eitend horizontally out from the secondary chamber F near its lower part and provided at their outside ends each with a double elbow c, which are conected to the water drum by pipes H which enter the latter near its bottom. These pipes Gand Il, being arranged as I have just described near the upper end of the incubating chamber, will not interfere in any way with the proper distribution of the eggs therein.

The heating apparatus for my improved incubator is located preferably at the end thereof, adjacent to the water drum. vThis heatingy apparatus consists of an ordinary lamp cl having, preferably, a metallic chimney d', which flares outwardly. Mounted directly above this chimney d is a water tank e, having a flaring passage e therein, which constitutes practically a continuation of the bating chamber near one end thereof -and ex- IOO chimney d. This water tank e is provided at one side with a faucet f by which the water may be withdrawn from the apparatus.

Mounted a short distance above the water tank e is a smaller cylindrical water tank g the ytop ot' which is ona level intermediate between the top of the water drum E and the radiating pipes G and H." This cylindrical water tank g is provided at its top with an opening having a screw cap g thereon, through which the desired amount of water may be introduced into the apparatus. The water tank g communicates with-the water tank e by means of small conducting pipes h. The proper supply of air to thelamp dis obtained by means ofismall holes lwhich are made within the chimney d. The upper cylindrical water tank g communicates directly with the Water drum E by means of a horizontal pipe j which passes through the end wall of the incubating chamber and enters the water drum near its bottom. The water tank e communicates with the secondary chamber F by means of a right angled pipe lo which enters the water drum e at or near its lower end and extends into-the secondary chamber F so as to be Hush with the bottoin of said second- `ary chamber, or approximately so. These pipes j and k serve to support the water tanksy e and g so that the latter will be independent of the lamp (Zand will bear in no way theref on. The lamp d can therefore be removed at any time for the purpose of filling, as may be desired.

Extendingr up from the bottom of the incubating chamber and entering the secondary chamber F are air supply pipes Z, which extend up into said secondary chamber F to a point near its upper end so as to be above the level of the water within the same. `The said secondary chamber 'F is provided on its inner wall with a plurality of holes m, 1n, which are placed above the level of the water in the secondary chamber and which open into the incubating chamber. Mounted upon the samewall of the secondary chamber, and in the incubating chamber above the pipes G and H, is a slide I, held in guides m and provided with a handle I extendingloutside ofthe incubating chamber and by-w'hich the said slide I may be moved back and forth. The said slide I is provided with openings therein, corresponding in size` and location with the openings m.

A convenient form of regulating mechan- The preferablel material of which I desire` to construct the thermostatic bar J is hard rubber, because I have found in experimenting with my improved incubator that that material is extremely susceptible to slight changes in temperature but it is evident that `any other suitable material may be substi- `tuted, such, for, example, as brass or acombination of brass and hard rubber. Extending up from the central portion of the lthermostatic bar .I is a metal rod o, leading up to the top of the incubating chamber and engaging with oney end of the lever K, which is fulcrumed,as shown, close to the rod o. `The said rod o is screw-threaded at its upper end and is provide'd on that portion with an adjusting nut o' by which the relative relations between the lever K and the thermostatic bar J may be regulated at will. Pivoted 'to the outside end of the level K is a rod L which` extends downward and is movably connected in any way with the end ot' the lever p, fulcrumed preferably near saidend and onto the burner of the lamp.` The other end of said lever p connects rigidly with the crank arm Q, which extends horizontally across the lamp burner with `its crank portion surrounding the wick. The ordinary wick tube is surrounded with the movable shield r, provided with' wings fr having openings therein, through which the crank portions of the arm Q extend. By means of the system of levers which I have just described, it will be observed that va very slight movement ofthe thermostatic bar will causea correspondingly lengthy movement upward and downward of the shield'rl so as to allect the dame to a greater or less extent.

The above described heat regulating device will not be claimed herein, the Commissionerv of Patents, having required me to file a divis` .ional application thereon, and it will, therefore, be understood that my improved incubator is entirely independent of said heat regulating device, and that ,any suitable heat regulating device may be used in connection therewith. I consider that the said heat regulating device is" however, a very convenient and appropriate device for use with my improved incubator.

M represents the egg rack, which is supported on cleats 8,3, secured to the partitions C and VD and arranged beneath the radiating pipes G and H. p

It will be evident that the height of the incubating chamber may be increased as desired, and that a corresponding number of egg trays may be used.

v The operation of my device and of the improved thermostatic regulator therefor will now be described.

A suitable quantity of water is poured into the water chamber g vuntil there is a sufli.

cient height therein to lcover the pipe j. This water will therefore entirely fill the water tank e, the pipe'k, the radiating pipes G and H, the connecting pipejand will partially till the water drum E, the secondary chamber F, and the water tank g. The lamp being lighted the heat therefrom will ascend the flaring passage e and will flow against the bottom of the IOO llO

' H, the double elbows, C,.the pipes Gand G, the

secondary chamber F, and the pipe 7c, back to the water tank e. The hot water within the radiating tubes G and H will therefore heat the interior of the incubating chamber to the desired temperature. At the same time that the Water is circulating betweenthe radiating pipes G and II, a suitable supply ofair enters the air pipes Z fromthe bottom of the incubating` chamber and passing up into the top of the secondary chamber F- above the water li'ue and coming into contact with the water therein, will pass out through the openings m and will enter the incubating chamber in a thoroughly moistened condition. This moistened air will pass down through the incubating chamber around the eggs on the egg tray and under the-bttom of the partition D, and will escape through the vent a.

The moistened air coming into contact with the glass doors of the device will condense thereon and according'to the amount of this condensation which can be observed from the outside of the device, a person skilled in the operation of my improved incubator can readily determine whether or not the proper amount of mistened air is entering the incubator. It too great an amount of air is passing over the eggs the handle 1 of the slide valve is moved slightly, so that the holes in thevside of said valve are thrown out of their corresponding relations with the holes in the secondary chamber F, so that maintained in the box istirst determined by ex-y g the supply lof air is decreased. The supply of moistened `air in the incubating chamber can be so regulated that oit-lier a very small quantity will pass through or a very great quantity, as will be necessary, according to the condition of the atmosphere of the room in which the incubator is to be placed, and in this connection it is to be noticed that in incubators wherein a vwater tank is made use of, there is no provision for regulating the supply of moistened air within the same. Often therefis too much moisture'in the air for the proper incnbationof the eggsand at other times there is not enough moisture for thispn rpose. The proper temperature which is to be perimentng with the'adj usting screw o if the heat regulating mechanism described above is used and when once obtained,no further adj ustment will be necessary. Should the temperature within the incubating chamber begin to rise the thermostatic bar J will expand and will curve or buckle at its center causing the rod to rise slightly and the outside end of the lever K to be depressed to a greater extentand'allow the connecting rod L to be correspondingly moved and the short lever p .will be elevated at its longer end, so as to carry the shield lr upwardY and surround the flame to a certain extent and the heat thereof -will Abe decreased until the'increased heat which caused the thermostatic bar to be voperated ywill be thorough-ly counteracted.

Having now described my invention, what l claim as new therein, and desire to secure by Letters Patent, is as follows:

i 1. Iiian incubator, the combination with au incubatingchamber; of the waterdrum E.

therein; the lamp d, outside of said incubating chamber; the water tanks e and'g, above said lamp,and communicating with each other. the-tank g, communicatingwith the water drum E; the radiating pipes H, in said incubating chamber, and communicating with said water drum E; .and the `radiating pipes G, in said incubating chamber, connecting with said radiating pipes H, and communieating with said tank by means of, the' pipe je, substantially as set forth.-

A2. In an ineubator,`the combination with anl incubating chamber of the water drum E and secondary chamber F, therein; the radi-l ating pipes H communicating with said water drum, the radiating pipes G, G, communicating with said secondary chamber; the elbows C, C, connecting said pipes G and H, the air pipes Z, l, extending up into said secondary chamber F above the water line; the water tank g communicating with said water drum E and the tank e, communicating with said secondary chamber F; the pipes h, h, connecting said 'water tanks e and g, the lamp a, beneath the said water tank e, substantially as described.

3. In an incubator, the combination with an incubating chamber of the water drum, the secondary chamber F within the same; the radiating pipes H, H, y communicating with said water drum; the pipesG, G, communicating with said secondary chamber F; the elbows C, C, connecting said pipes G, H; the air pipes 1,1, entering said secondary chamber above the water line; the openings m, fm, in said secondary'chamber and entering the incubating chamber; the slide valve, I, having holes therein, corresponding with holes in the IOC l'IO

water tank g, communicating with said water 5` drum E; the water tank e communicating with*I said secondary chamber F; the pipes h, h,

e.'and g; the lamp c,beneath said water tank' e; the chimney d for said lamp; the openings z', i', within said chimney, and the daring openings @"extending up through said tank e and opening beneath the bottom of the water `tank g, substantially as described.`

5. 1u an incubator, the combination with an incubating chamber of the partitions C and D; the openings beneath the partition D; the vent a; the egg rack M supported by Said partitions C and D; and radiating pipes in upper part of said incubating chamber, substantially as described.

6. In an ineubator,consistiug of an incubating chamber, provided with the partitions C and Dv therein; the opening beneath the partition D; the vent-a; the egg rack M supported by said partitions C and D'; radiating `pipes near the upper end of said incubating.

chamber, the-heating apparatus at onel end of said ineub-ating'chamber, the said radiating pipes connecting said heating apparatus and a heat regulating device, substantialiyas described.

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

v EDWIN \V. ANDREWS.

\Vitnesses: 5

GEO. W. CONNER, H. C. ROBERTSON.

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