US812926A - Low-pressure heating system. - Google Patents

Description

V v BATENTE'J E, 20, 1996.

HRRSN.

LOW PRESSURE HEATNG SYSTEM. APPLICATION FILED ma. 25. 1904.

AENTEB EB. 20, 1906.

A. HARRISON. LOW PRESSURE HEA'ENG SYS TEM.

vAPPLIUATION FILED AUG7 25,1804.

2 SHEETS-SERT 2.

O O O O O O O 0 OOOOOOOO OOOOOOOO OOOOOOOOOO To'otZZ whom, t 'may concern.-

stance.

' number of radiators may be employed and that either the single-pipe or 'tivpipe systems may be employed, as desired.

Attached to the main'2 inanyI preferred out the necessity of a punlig vis a' diagrammatic elevation o tem embodying my invention, certain parts Vtional view showing a detail of connecting certain radiators.

innrnjn ernten.

All/IOS HARRISUN, 0F CHICAGO, ILLINUIS, ASSlGNOR OF OE-FUURTH '70 ROBERT H. WALUH, OFv CHICAGO, ILLINOIS. l

I @llllmll-'KESSMHE HEATENQ: SYSTEM..

No. 812,925. Specification of Application iiled Augu Beit known that I, AMos HARRISON, a citizen of the United States of America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Low-Pressure Heating Systems, of which the following is a descrip: tion.

My invention relates to a system of heating apparatus wherein the heating medium con sists of a suitable vapor under low and prefF erably, a proximately atmospheric pressure.

The o ject of my improvement Ais to provide substantially automatic means for circulating such a medium at low pressure withor fan except at possibly infrequent perio in starting the operation.

To this end my invention consists in the novel construction, arrangement, and combination of parts herein shown and described, and more particularly pointed out in the claims.

'In the accompanying like or corresponding re e dicate like or corresponding drawings, wherein rence characters inparts, Figure 1 va heating sysbeing in section to more clearly show the construction. Fig. 2 is an enlarged sectionall View. showing a part of the construction of the pressure-reducing means. Fig. 3 is a secarts. Fig. 4 is a vertical section of the pre erred generator. Fig. 5 is a trans' verse section on line 5 5 of Fig. Lt, and Fig. 6

isa diagrammaticview showing a modified arrangement ci m device.

' In the preferre forni shown in the drawings, 1 is a`generator of any suitable construction connected by a main 2 to suitable As shown in Fig. 6, the radiator 3 is connected by what is known as asinglepipef system, while in Fig. 1 the connection: with the radiator .4 indicates the two-pipe sysf tem. The two methods are shown to indicate the referred connection in each in'-I t is of course obvious' that any Letten raient. Patented Feb. 2o, 190e.

st 25,1904. Serial Nn.222,197.

' manner is an automatic pressure-reducer comprising a casing 5, suitably connected at one end to the main; as at 6, and closed at its opposite end upon a centrally-contained tube or pipe 7. Oneend of the tube'7 forms a connection 'With,,an extension 10, preferably passing transversely ythrough the main 2,-as shown. Thus while the medium may circulate freely about the tube it'is prevented.

from passing into it. By this means the tubel is heated and the passing vpartially cooled vapor therein is increased in temperature above that which is conducted thereto. trom the radiators.

ssv

That part of the tube 7 extendin outside the casing 5 is preferably extende a' short distance above the roof ofv tlie `building ,in

which the apparatus is located, so that any air,l gas, or vapor within the tube may be freely discharged into the atmosphere.y In order to assist this action, I prefer to place upon `the projecting end of the tube an eject-v ing-cowl 8, provided with a suitable vane 9, the two being rotatably mounted to secure the most favorable action ofthe wind. In the preferred form shown the pipe 10 forms an extension or continuation of the tube 7 and is provided with a suitable trap or seal 12 and connected with a pipe 11, arranged to return any Huid arising from condensation in the s'ystem to the generator.

In'order to communicate thepartial vacuum or reducedpressure Within the tube 7l and associated parts to' the radiators and various parte oi'the system to cause the vapor to flow therein, I connect the radiators by a suitable pipe or pipes 14 to the tube 7 or extensions thereof above the highest point to which liquid' therein will rise. .If desired, automatic "air-valves 15, operated by the temperature in the usual manner, may be located at suitable points in the system to regulate the flow of Vapor in the pipes and *preventwaste v. 'I I prefer to provide a trap llineach pipe, 11 near `the generator and in 'other parts of the system Where fluid is likely to accumulate, and provide the same With drip-cocks 17, sothat the system may be drained when' A pipeflSiis provided with a valve 19 and arranged' 'to conduct'the liquid to be vapo- IOO emergency or in starting the operation.

Any preferred form of generator suitable for the purpose may be employed. Satisfacy system an( tory results may be secured by means of the generator shown in Figs. 5 and 6, made the subject-matter of a separate application for Letters Patent duly filed August 1, 1904, Serial No. 219,007.

As shown', the shell 22 is provided with one or more transversely-arranged porous beds 23 of incombustible material, which are raised to high temperature by a burner 24, ada ted for use with gas, oil, or the like. The Hui is introduced by a pipe or pipes 11 andy distributed by a foraminated annular trough 25 or, if preferred, by a. spraying-nozzle 26. (Shown in dotted lines.) The v `por generated is intimatelyinixed with tiic products of combustion from the burner, and the mixture thus formed` is passed intothe system by means of the pipe 27, connecting with the dome 28': The burner may be open to the atmosphere by means of a suitable opening 29 or other preferred means'. l

Obviously the highest economy is secured, inasmuch as the products of combustion, as wel] as the Generated Vapor, pass through the y give up their heat in their passage through the system, vas described.

Having thus described my improvement, it is obvious various immaterial modifications inay be made without departing from the spirit of my invention. Ileiiee 1 do not wish to be understood as limiting myself to the exact form and cpiistructioii shown.

What .l claim as new, and desire to secure by Letters Patent, is-

l. A device of the kind described, coinpri'sing radiators, conducting-pipes, and a generator for producing a heating medium, in coml'iination with an automatic pressurereducer and discharge-pipe, consisting of a tube open at one end, means for heating said tube by said heating'inedium, and means connectingvarious )arts of the system to the other end of said tube to induce a low 'of the heatingA medium to those parts.

2, A device oi the kind'described, comprising ri'rdiators, conducting pipes, and 4a generator'lor producing a heating medium, in combination with an automatic pressurereducer and discharge-pipe consisting ol a substantially vertical tube open :it its upper end to the atmosphere means vtor heating said vertical --tube by means of' said heating medium and induction-pipes connecting the lower end of said vertical tube with various parts of the system to induce a flow of the heating medium to those parts.

3. A device of the kind described, coinprising radiators, conducting-pipes, and a generator for producingr a heating,r medium, in combination with an automatic pressurereducer and discharge-mpc consisting of a substantially vertical tube open at its upper end positioned partly' within a casing connected to said conducting-pipes, whereby said vertical tube is heated by said heating medium, and induction-pipes connecting the lower end of said vertical tube with various parts of the system. to induce a How of the heating medium to those parts.

4. A device of the kind described, comprising radiators,conducting-pipes, and a generator for producing a heating medium,-

in combination with an automatic pressurereducer and discharge-pipe consisting of a substantially vertical tube open at its upperend and provided with a suitable ejectorcowl, means for heating said vertical tube by means of said heating medium and means connecting various parts of the-system to the lower part of said vertical tube to induce a flow of the heating medium to those parts.

5.` A device of the kind described, coinprising radiators, conducting-pipes, and a generator for producingr a heating medium, in combination with an automatic pressurereducer and discharge-pipe consisting'ot a substantially vertical tub'e open at its upper end and provided with a suitable ejectorcowl,y means i'or heating said vertical tube by means oi'` said heating medium, and induction-pipes connecting the .lower end oi' said vertical tube with various parts of the system to induce a [low of the heating medium to'those iarts. 6'. A device of the kind described, coinprising radiators, conducting-pipes, and centrolling nieans and a generator for producingr a heating medium, in combination with an automatic pressure-reducer consisting of a substantially vertical tube open at its upper end and provided with a suitable ejector- IOO cowl, said vertical tube being position-ed partly within a casing connected to said conducting-pipes, whereby said vertical tube is heated by said heating medium, and induction-pipes connecting the' lower end said vertical tube with various parts of the system to induce a flow of the heating medium to those parts. i

7. An automatic pressure-reducer, com,-Q

prising a tube adapted to be placed in a substantially vert-ical position, an air-tight casing inclosing a part of the length of said tube, means for connecting said casing to a conducting- )ipe whereby a heating mediaan is admitted to said casing to heat said tu/beand means'forvcnneeting nducten-ppes to' the' lower end of said tube.

v 8. An automatic pfessure reducer, comprlsng su tube adapted to be placed in a substantially vertical position provided with any1 ejectoreo'wl at its 'upper end,i`sl easing inelosingl L pait'o'f the length 0l? seid tube, means fr'eonneeting said cusingfto a; conducting-z '.ppe, whereby e, heating mediums admitted f 1o ,to seid caeihg to heat ll'slaidtube, end mean's Y Mee HARMSQH. Wltnessesnu l J BURTON-U. Hmgsg, vvCIHARms Cese(

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