US1194338A

US1194338A - mahon

Info

Publication number: US1194338A
Authority: US
Publication date: 1916-08-08
Anticipated expiration: 1933-08-08

Description

.A. MAHON.

BROODER HEATER;

APPLICATION FILED 050.22. 1914.

1 1 9%,33fi. Patented Aug. 8, 1916.

2 SHEETS-SHEET l.

A. MAHON.

BROODER HEATER.

APPLICATION FILED DEC. 22, 1914' 1 1 94,338. Patented Aug. 8, 1916.

2 SHEETS-SHEET 2.

l J /E i m /7 E 43 l /6 j X 9 7 f a 2 m? r H 26 5 1 -H I I m5 Nomus PCYL'RS CIIHPNOTO-LI1NQ,WASHINGYUN. u. c

ALEXANDER MAHON, 0F FAIRFAX, VIRGINIA,ASSIG1\TOR OF ONE-HALF TO JAMES P. COON, OF WASHINGTON, DISTRICT OF COLUMBIA.

BROODER-HEATER.

Specification of Letters Patent.

Patented Aug. 8, 11916.

Application filed December 22, 1914. Serial No. 878,510.

To all whom it may concern:

Be. it known that I, ALEXANDER MAHON, a citizen of the United States, residing at Fairfax, in the county of Fairfax and State of Virginia, have invented certain new and useful Improvements in Brooder-Heaters, of which the following is a specification.

With respect to the present invention it may be premised that because of the danger of fire and the harmful efiect of gas fumes upon young chicks within the hover chamber of a brooder that it is the common practice to place the heater on the exterior of the brooder, thus minimizing this danger but with an accompanying loss of heat from radiation, and a lackof uniform heating of all parts of the hover chamber as well as great variation in temperature and great difficulty and care in the maintenanceof a suitable temperature.

The object of this invention is to provide a heater for brooders which, by reason of its structure and location within the brooder, will not only conserve and utilize all the heat produced, and therefore produce an economy in the use of fuel, but also protect the hover chamber of the brooder from the disastrous effects of fire, or the presence of gas in the heater, render the heating of the brooder chamber uniform and preserve a more constant temperature as well as to pro vide for easy access to the heating lamp and control of the heat produced.

Another object of the invention is to provide means for protecting the heater lamp from the explosive effects of the heat generated thereby and confined in the heater.

A further object is to provide means for the raising and lowering of the chimney of the heater lamp from the exterior of the brooder so associated with the heater as to preventthe communication of gases or fumes to the interior of the brooder. j

Primarily, the invention consists of a brooder heater adapted to be located within a chamber below the hover chamber, and comprising a lamp or other source of heat, a gas-tight casing for said lamp extending to and in open relation with the exterior of the brooder for the introduction and withdrawal of the lamp, draft flues connected to said casing, a heating dome above said lamp forming a gas-tight part of said casing, a second dome surrounding said heating dome and extending within the hover chamber and pipes forming a communication between said chamber and the outer air and connected to the said second dome for the introduction of fresh heated air to the hover chamber. 7

The invention also consists in certain other novel features in the arrangement and construction of parts by which ventilation and draft is provided without undue waste of the heat, and in further means for defleeting the heat from the lamp, and means for getting access thereto through the protecting casing, all, as hereinafter set forth and claimed.

In the accompanying drawings, Figure 1 is a view in perspective of a section of a brooder provided with the heater of the present invention and partly broken away to disclose the heater which is shown partly in dotted and partly in full lines, and is also broken away to disclose fully the interior thereof; Fig. 2 shows a portion of a brooder with the heater located therein, the brooder and heater being represented by a vertical cross section taken longitudinally through the heater casing; Fig. 3 shows a vertical section taken transversely through the brooder and the heater at a point in front of the burner, a section only of the brooder being shown; Fig. 4: is a detail view in perspective of the chimney and its associated heat guard and the means for raising and lowering the chimney and guard from the exterior of the brooder.

Referring to the drawing, the brooder 1 may be of any well known or preferred construction, but is here represented as a rectangular structure, the showing of the drawing being such as to so indicate the location of the heater therein that the burner and the heating dome thereof will be central of the brooder. For the purposes of this invention the brooder is provided, in addition to the hover chamber 2, with an under-chamber 3 that is separated from the hover chamber by a floor 4. Within the under-chamber 3 is located the heater of the invention, which in the main comprises a metal casing 5 in the form of a rectangular box in one end of which is removably located a lamp-heater 6, the casing having a width slightly larger than that of the lamp heater so that the lamp heater may be readily inserted and withdrawn from the open end of the casing, Which end is closed by a ventilating door 7,

' as shown in Fig. 1, the side walls of the cassaid opening is formed a collar 8 to receive one of the oppositely extending smoke or draft pipes 9, which pipes extend beneath I the hover floor and through the opposite walls of the brooder to the exterior air, and serve to lock the casing in its proper position. With the exception of the draft flues 9 and the front opening of the casing, the said casing is gas-tight, and by reason of the connection of these lines and their extension to the outer air and the extension of the open end of the casing to the exterior of the brooder through an opening for that purpose, Which is closed by the casing, the said casing is gas-tight and cannot communicate any gas or fumes to the hover chamber, or the chamber beneath the hover chamber, while by reason of this arrangement the said under-chamber is heated by radiation fro-m the casing and the flues, thus conserving all the heat units and causing the uniform heating of the floor of the hover chamber by reason of the distribution of the radiated heat thereunder. As a further means to conserve the heat produced the heater casing is so supported within the under chamber as to bring its top in contact with the floor of the hover chamber.

At the inner end of the casing, and directly over the lamp heater, the casing is provided with an opening over which is secured by a gas-tight and fireproof union, a

heating dome 10, which is designed to ex-- tend into the hover chamber 2 through a central opening in the floor 4. This heating dome is preferably cylindrical and provided with a base flange 11 which is united to the casing by means of clamping bolts 12 and a gasket 13 of asbestos, or other fireproof material, that will not be destroyed or displaced by excessive heat, which gasket is clamped firmly between the fiangesll and the casing, thus making a heating extension which will be proof against the communication of fire or fumes that may be present within the casing and permit of theremoval of'the dome for cleaning and other purposes and allow of its ready replacement without destroying its fire and gas proof properties. The heater is also provided with a second dome 14 slightly larger than the dome which surrounds the heating dome, and which is loosely supported on the top of the casing .and fits the opening in the floor of the'hover chamber through which the dome 10 extends. The dome 14 is provided in its top with an opening 15 for egress of the heated air between the domes, this opening being central of the hover chamber. In order that the heated air constantly supplied to the hover chamber may be fresh air, intakes 16 are connected with the dome 14 near its base and extend below the hover floor to the outer air, thus introducing the fresh air and causing it to be in some measure heated in its passage to the dome 14 from the heat of the under-chamber 3. At the ends of these pipes 16 a. plate 17 is secured having an opening therein to match the opening of the intake, and in this plate is mounted a suitable slide acting to open o1- close the intake to a greater or less degree and thus control the admission of the air and regulate the heat affected from this source. lVithin the casing is provided a metal chimney 18 which extends within the heating dome 10 and is movable up and down therein. To conveniently elevate the chimney to a point clear of this lamp, as required when removing or inserting the lamp, the chimney is provided with trunnions 19 by which it is pivotally connected to arms 20 rigidly connected to a rock-shaft 21, supported from a hanger 22 that is removably secured to the top of the casing 5. Centrally of the shaft 21 is a rocker arm 23 to which is pivotally connected the operating slide-rod 24 extending to the casing opening where it may be readily operated from the exterior.

Secured to the chimney so as to be raised and lowered thereby is a plate or heat shield 25 having downturned guiding portions 26, which plate is of metal or other fire resisting material and acts to form a fire screen and heat guard that is useful when any excessive degree of heat is present that would endanger the lamp heater and cause explosion or fire. This heat guard is of form to substantially fit the casing below the dome or to impinge against the walls of the casing so as to guide and maintain the chimney in its proper relation to the heating dome. In addition to the protective value of the shield 25 as above recited it is made a 0011- server of heat by being provided with a covering 25 of asbestos or other heat non-conducting material, so that at such times when the heat is at alow degree its confinement to the upper part of the heater above the lamp will produce the desired temperature about the heating dome.

. From the foregoing it will be seen that a brooder heater is here provided that while conserving all the heat and properlydistributing it to the hover chamber with fresh heated air, also by reason of its gas-tight construction and its connection for communication with the exterior of the brooder removes all danger of gas fumes and fire being communicated to the hover chamber.

What I claim and desire to secure by Letters Patent is:

1. In a brooder, the combination of a hover chamber, formed with an opening in its floor near the center thereof, and a brooder heater, said heater comprising a tunnel portion located below the floor of the hover chamber and extending to the wall of the brooder into open relation to the exterior thereof, and a dome, secured to the tunnel by a gas-tight and fire resisting connection and arranged to extend through said opening into the hover chamber, said tunnel and dome being sealed against the accidental escape of products of combustion and other fumes, except where the tunnel is in open relation to the exterior of the brooder.

2. In a brooder, the combination of a hover chamber, formed with an opening in its floor near the center thereof, and a brooder heater, said heater comprising a tunnel portion located below the floor of the hover chamber and extending to the Wall of the brooder into open relation to the exterior thereof, and a dome arranged to extend through said opening into the hover chamber removably secured to said tunnel by a gas tight and fire resisting connection.

3. In a brooder heater, the combination with a brooder having an upper hover chamber and a lower heating chamber, of a gastight casing Within said heating chamber, having a dome at one end forming a gastight part of said casing and at its other end extending into open relation to the exterior of the brooder, smoke pipe or pipes connecting said casing with the outer air, a source of heat located within said casing beneath the dome thereof, and a second dome surrounding the heating dome, having air supply ducts, substantially as described.

4:- In a brooder heater, the combination with a brooder having an upper hover chamber and a lower heating chamber, of a gas-tight casing within said heating cham ber, having a dome forming a gas-tight part of said casing and extending into the hover chamber, said casing extending in open relation to the exterior of the brooder and closing the opening therein for such extension against communication to the lower heating chamber, a source of heat within said casing, and draft pipe or pipes similarly extending to the exterior, whereby the source of heat is disposed centrally of the brooder and gas and fire within the heater prevented from being communicated to the interior of the brooder.

5. In a brooder heater, the combination with a brooder having an upper hover chamber and a lower heating chamber, of a gastight casing within said heating chamber having a dome at one end forming a gas tight part of the casing, said casing extending in open relation to the exterior of the brooder, a source of heat within said casing beneath said dome, smoke pipe or pipes for said casing, a second dome surrounding the heating dome and supported on and closed at its base by the casing and extending into the hover chamber, said second dome having an outlet at or near its top and air supply pipes connecting said domewith the outer a1r.

6. In a brooder heater, the combination with a brooder having an upper hover chamber and a lower heating chamber, of a source of heat disposed centrally of the said heating chamber, a gas-tight casing for said source of heat, said casing having a heating dome forming a gas-tight part of the same above the source of heat, a tunnel portion extending to the exterior of the heating chamber for the passage of the source of heat to and from its place within the casing, closing the heating chamber against communication with the exterior, smoke pipe or pipes for said casing, a second dome surrounding the heating dome and supported at its base by the said casing, said second dome having air supply pipes connected therewith and discharge outlets for conducting the heated air to the hover chamber.

In a brooder heater, the combination with a brooder having an upper hover chamber and a lower heating chamber, of a source of heat within the lower chamber, a gas-tight casing for said source of heat extending in open relation to the exterior of the brooder and closing the opening therefor through the brooder, and provided with a heating dome forming a gas-tight part of said casing, extending Within the hover chamber, draft flues connecting said casing with the outer air, a second dome surrounding the heating dome, having fresh air supply pipes extending through the heating chamber to the outer air and outlets for discharging the heated air into the hover chamber.

8. A brooder heater to be located within a chamber below the hover chamber of a brooder, the same comprising a lamp or other source of heat disposed centrally of said chamber, a gas-tight casing for said source of heat having a heating dome forn1- ing a part thereof and a tunnel portion extending to the exterior of the brooder for the passage therethrough of the heating device within the casing, a chimney adapted to be moved up and down within the heating dome, and mechanism within the casing for causing said movement and adapted to be operated from the tunnel opening at the exterior of the brooder.

9. A brooder heater comprising a gastight casing having a heating dome as a part thereof and an extension opening to the ex terior of the brooder, a source of heat, a chimney to extend up into the dome, a rock shaft supported within said casing having an arm or arms carried thereby and pivotally connected to the chimney, an arm for rocking said shaft, and an operating rod connecting with said rocking arm and exber and a lower heating chamber, of a source of heat, a gas-tight casing therefor extending from within said heating chamber into open relation with the exterior of the brooder to form a passageway for the source of heat, said casing having a separable heating dome forming a part of said casing, a heat resisting gasket interposed between the I base of the dome and the casing, and means for clamping the same between the casing and the base of the dome, substantially as described, whereby the entire casing is rendered proof against the communication of fire and fumes to the heating chamber of the brooder.

12. In a brooder heater, a casing having a dome, a removable lamp within said casing and below said dome, a chimney extend ing into said dome and having a movable support independent of the lamp, whereby said chimney is maintained in fixed working relation to said dome, and means for actuating said support for moving the chimney to and from the lamp to permit the withdrawal and replacement of the lamp.

13. In a brooder heater, a casing having a dome,'a removable lamp within said casing below said dome, a chimney extending within said dome, adapted to be moved to and from said lamp, means for raising and lowering said chimney, and a heat shield connected to and movable with said chimney and being in guiding contact with the casing. I

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

. ALEXANDER MAI-ION. Witnesses H. M sTERLING, J osnPH W. BUELL.

"Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.