US1280870A - Gas heating system. - Google Patents

Description

B. A. SCHRODER.

GAS HEATING SYSTEM.

APPLICATION FILED DEc26. 1914.

Patented Oct. 8, 1918.

lu/vanto@ BERNARD A. CHRODER l BERNARD A. SCHBODER, OF' BIRMINGHAM, ALABAMA, ASSIGNOR T0 AUTOMATIC GAS RADIATOR COMPANY, A CORPORATION ALABAMA.

I. GAS' 'HEATING SYSTEM.

- To all whom t may cncer/n:

.a speci Be 4it known that I, BERNARD A. Sonno- -DER, a citizen of the United States, residing diators of the type heretofore used with steam and hot water radiation systems without requiring any substantial.- change in their designv or arrangement.

A further and most important object .of my invention is to safe guard against the possible opening of the gas valve of'any type of gas burning radiation system when the fan for exhausting the gases from the radiators is not in service and this control I effect by a Anovel and simple means of making the operation! of the radiator gas valves responsive. to the operation of the" prime mover which drives the exhaust an.

I claim'this feature broadly. By this arv rangement when the prime mover stops and the exhaust fan is out of, service, it is not 'possible for any valve of the radiation system to be opened by the Vautomatic control devices and I preferably so protect the valves from casual manual operation that they cannot be opened under such conditions. 'As 4a preferred means for controlling the valves, 1 utilize a motor generator set, the motor beingadapted to drive the exhaust fan and a small generator which supplies .current for operating the valves.

AA further important feature of my.- invention is the means-by whichit is adapted for automatic operation under the control of an'adjustable circuit closing thermostat of standard design which may be set for an desired degree of room temperature which it is desired vto maintain and which will act inthe well known manner to make and break the electriccircuits, which control the radiator gas valves, and. cut vthe radiators into and out of service as the temperature .rises substantially 'above or falls substantially below that for which the instrumentis set. I provide a magneticallyoperated gas -valve for each radiator and wire all so Specification of Letters Patent.

Application led December 26, 1914. Serial No. 879,109.

Patented Oct. 8, 1918.

vopen the valves when'their respective thermostats close their control circuits and when such circuits are opened by the thermostats the valves, are released and close automatically. By this means a radiator is caused to burn only a small part of the time toma-intain the room temperature, thereby insuring the economical operation of my system.

A further object of my invention is to insure the uniform heating of the several radiator sections by the utilization of aperforated draft pipe.or similar means which preferably extends through the several radiator sections and is designed and adapted to produce' in each of the several sections a substantially. uniform. draft to insure the equal iadiatingefiicicncy throughout the radiator.

A further object of my invention is to utilize an elongated gas burner which is inserted through the bottom alining openings of the radiator sections and which is supplied with air through a series of air ports provided in the radiator sections to cause a substantially uniform fla-me in each section.

A further object of my invention is to reduce to its simplest and most compact form the control mechanism for the gas and to mount all parts within an inclosing casing which is small,attractive in appearance, and readily attached to theradiator, thereby, making simple and inexpensive the installation of my gas burner equipment.

A further object of my invention is the complete in'closure of the magnetically controlled gas valve -within a,gas tight casing so that it is protected perfectly from being tamperedwith and leakage avoided.

A further novel feature of my invention is the provision of a baille strip to be in.

serted into the bottom `of the radiator-secf tions and Ato be disposed between the burner tube and the air inlet ports so as to deflect the entering air and 'cause a better and more, 100

only are hereinafter more particularly de- 105.

scribed and illustrated in the accompanying drawings which form a .part of this specifi Figure 1 is a view illustrating :the piping i connections and motor generator set in side 110 y elevation; and one radiator partly in section on the linew-w of Fig. 2and partly in elevation.

Fig. 2 is a' vertical sectional view taken along the line i/-y/ of Fig. 1.

Similar reference numerals refer to similar partsthroughout the drawings.

I have shown my invention in'connection with a radiator formed vby a series of sections 1 but it will be understood .that other forms of radiators may be substituted. Theseradiator sections arefsiibstantially of standard form except that to reduce the cost kI dispense with nipples between sections and merely face off the bosses 2 so as to make a tight `Joint when the sections are drawn together in the manner hereinafter described.

In each radiator section and preferably at the bottom thereofI provide an lair inlet opening 3. The 'radiator sections are tied together at their -upper ends by a perforated The draft pipehasa series of port-s 7 there.

ally as they approach thev outlet end of thel v draft pipe 4 having its ends threaded and one screwed into a threaded opening in a blu 5 and the other screwed through' a' l b C9' p1ugv6. whichplugs Iit snugly into and effectively close the radiator end openings.

in which preferablydecrease iii size gradupi pe, to give a uniform draft to each 'radiator section. The exposed end of pipe 4 is connected by an elbow with the exhaust pipe 8 connecting with a-main-exliaust pipe 9 of the radiator system, which in' turn is connected to the blower 10. 'I he radiator sections are tied together at their lower'ends 4by the burner. pipe 11 which is screwed at one -end into a plug 5 while its other end is screwed' into the reduced'end 12 of the gas control casing 14.` Square shoulders 13 fare provided on the plugs 5 a-nd 6to receive.

a wrench.' Albaiiie plate 1,5 is inserted through the end openings of the radiator j 'sections and extends longitudinally under the burner and overthe air inlet holes 3, 'serving to baiile and distribute the air to the burner 11so as to obtain a substantiallyv uniform combustion in the Several radiator sections.

The control casing-14 is shown producedin as simple vand compact form as possible and one which -is especially designed to prevent l.the apparatus being tampered with. The casing is preferably formed-as an iii. tegral `angled *ca stingl having a chamber 16 in its upper endl below which isga diaphragm.

17 provided. with a ycentral opening through 'which the inner angled and, threaded end vof a small pipe 18 is passed. A nut 19 on the pipe engages-the under faceof the diaphragin and a, nut 20, having a taper valve seat. in tlie top of'its bore, engages the end of pipe 18 above the'diaphragm and servesv to holdl the pipe in positionwith the Spud 21 'thereonI disposed, just beyond the air intake opening 22. Au adjustable sleeve 23 is slidable over the .opening 22 to regulate" therein a valve casing 27 and a valve 28A which controls the gas supply to the pilot burner 29 Whichpasses through a suitable opening provided therefor in the end radiator section. This section is also provided with an opening 30vfor`g'iving accessto the pilot to light it. I screw or otherwise'ii'iake tight and fast in the top of the chamber 16 a metal cap 31 having integraltherewitli or 'otherwise suitably connected thereto a core 32 of a magnet 33. The wires for this magnet. are connected toA the terminals 34 and 35 mounted in insulationplugs 34a and 35n seated tight in .openings in the cap. These terniinalsare connected respectively tothe leads 36 andf37 of a. branch circuit connected inmultiple to the wires 38 and 39' of the main contro] circuit for the whole system. i Y

.Current is supplied to the main .cont-rol circuit by a .small generator 40 which is part of a small and compact motor gi'an'eiaf tor Iset con'iprising a .motor 41 Aconnecteolo'n one-side. to the blower 10 and on the other side to the generator 40, all parts being mounted upon a suitablebed plate 42. The

curi-ent is supplied to drivethe motor- 41by n l the service wires 43 and A44 vunder control o f a main house switch 45.

YIn each branch control circuit formed bythe leads 86 and 37 for a radiator or 'a group of radiators, I provide an adjustable' make .and break thermostat 46 of standard f design and which therefore Iwill not de nio" scribe in det-ail votherwise.than testate that its pointer arm 47 is adjustable, relative to the dial 48 which is marked for4 the dierent i .degrees of temperature whichv it may be de-v siredto maintain in the room and when the' pointer .is 4'set for any given degreie' the thermostat will make and breakjthe circuit A connectionsacross its yterminals 49 and 50 as the vteniiperature 'approaches and departs l `from that designated degree. Of'course the thermostat may permit of`a-substantia1"de partiire from .the given degree before acting on vthe circuit. The .wire '36 'is interrupted and its ends connected to these terminals '49 .and '50 with the result that whenthe circuit is closed by the thermostat the mgnetuS A will be energized and its core 32 will raise the cone valve 24. and allow gasto flow .through pipe 18 tothe mixing` chamber in the end ofthe casing 14 and thence int-o the iisf viously ignited, is maintained constantly.

burning while the heater is under automatic control, and it will ignite the gas as soon as it flows from the perforations in the burner 11. The products of combustion will pass up through the several radiator sections, being drawn in substantially equal volume therethrough and out through the pipe 4 and the exhaust pipe connections 8 and 9 to the blower 10 which discharges it through a pipe or stack 51 to the atmosphere. A Water sealed drain pipe 52 having a U-bend is provided at the bottom of the exhaust pipe 9 to take care of the water of condensation therein. A

It being understood that one or more radiators may be controlled by each branch control circuit 36, 37, that there may be as many of such branch circuits as the house or building to be heated may require, and that the pipes 9,and 25 are connected to each radiator, the operation of my system may be brieiy described as follows: By closing the switch 45, service current is supplied to the motor 41 which thereupon drives the blower and the generator. The blower serves through its connections 8`and 9 to exhaust the gas and products of combustion from the radiators and the small generator 40 delivers current through the main control circuit to the several. branch circuits 36, 3 7 under control of their therniostatic regulators 46.

Assuming a regulator to be set for 7 0 and the temperature of the room to be the regulatorwill immediately close the circuit to the magnet 33, and, if the blower and generator are operating, the magnet will 'open the valve 24: and the radiator will start into service, the burner being ignited by its constantly burning pilot. As the temperature in the room rises the thermostatic regulator responds and when the temperaturereaches it automatically breaks the branch control circuit, whereupon the magnet 33 is denergized and the valve 24 drops by gravity shutting ofi' the gas supply to the radiator and the latter remains out of service until the temperature in the room falls to a predetermined extent, whereu on the regulator-will again automatically c ose the branch circuit and the operation will be repeated. In this manner, my heating system will automatically maintain any desired temperature in any room of the house and by cutting Ithe radiator out of service when the room has been brought to the desired temperature, I obtain a very great economy in the consumption of gas, for by actual tests I have found that the gas under ordinary Vweather conditions burns only a small fraction of the time. My system requires but a small blower sufficient toinsure the exhaust of the gas and products 'of combustion from radiators connected thereto, no other duty and when the blower is on no explosion can result.

A perforated cover plate 53 may be provided for the opening 30 through which the pilot burner. 29 is ignited.v I attach this plate by screws to the radiator so that it can be removed, but -it generally remains in place as the pilot burner is intended to burn while the radiation system is in service.

Having thus described'my invention, what I claim as new and desire to secure by Letters Patent, is

1. In-a gas burning radiation system, a gas Iheated radiator, a gas control valve therefor, suction means to exhaust gases from the radiator, electric valve operating means for -the gas valve, and a common source of power for actuating said suction mea-ns and energizing the valve operating means.

2. In al gas burning radiation system, a gas heated radiator, an electrically controlled gas supply Valve for said radiator, a fan and suction connections therefrom to the radiator, and a motor generator -set which drives the fan and supplies current to operate said valve.

3. In a heating system comprising a plurality of independent gas burning radiators, each having a' gas supply valve, electric means to operate the valves, thermostatic means which control the operation of the valves, power driven means to exhaust gases from theradiators, and a motor generator set comprising a `generator which supplies current to said elect-ric means and a motor connected to said generator and to saidpower driven'exhaust means for the system.

4. In a gas burning radiation system, in combination, a motor generator set, a fan blower driven by said motor generator, and an electric circuit system supplied with current by said motor generator set and adapted to control the opening of radiator gas supply valves, gas burning radiators, and -a suction pipe system connected to said fan and to the several radiators for the purpose of exhausting the gases from the latter.

5. In a gas burning radiation system, a gas -burning radiator, a gas valve therefor, electric apparatus to operate said valve, a thermostatic meansto automatically control the operation of said electric apparatus,a power drivenv suction apparatus connected' to the radiator, and a common motor to drive the electric and suction apparatus.

6. In a gas burning radiation system comprising radiators which are grouped for branch circuit connects, means automatically unit control, an exhaust piping system and motor driven means coperating therewith to carry off the products of combustion from said radiator, electric means to control 4the supply of gas to the radiators of each unit7 said means being, in a branch control circuit, a common control circuit with which each temperature-responsive means adapted to be set for different temperatures and to make Aand break the branch circuit that it controls, 15

substantially as described.

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

' .BERNARD A. SCHRODER. Witnesses: v

R. D. JOHNSTON, Sr., NoMIE WELSH.

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