US1072707A - Thermostatic controlling apparatus for heating systems. - Google Patents

Description

T. PARMERJR. THBRMQSTATIG GONTROLLINS APPARATUS FORAHEATING SYSTEMS. APPLIOATION FILED APR. 21. 1909 Y 1,072,707, Patented Sept. 9, 1913.

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A T. FARMER, JB. THERMOSTATIG GONTROLLING APPARATUS FOR HEATING SYSTEMS.

. APPLIoATloIf FILED APR.21,1909. s 1,072,707. Patentedssept. 9,1913.

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THOMAS FARMER, JR., F ALBANY, NEW YORK, ASSGNOR TO CONSOLIDATED CAE- I-IEATING COMPANY, F ALBANY, NEW' YORK, A CORPORATION OF WEST VIRGINIA.

THERMOSTATIG CONTROLLING APARATUS FOR HEATING SYSTEMS.

Spec'ieation of Letters Patent.

rateale-eu sept. e, i913.

Application filed April 21, '1909. Serial No. 491,335.

To all 'whom t may concern:

Be it known that I, THOMAS FARMER, J r., a citizen of the United States, and residing at Albany, county of Albany, State of New York, `have invented certainnew and useful Improvements inThermostatic Controlling Apparatus for -Heating Systems, the following being a full, clear, and exact disclosure of one form'of my invention which I at present deem preferable. v

My invention relates to an automatic or thermostatic controlof heating systems and particularlythose adapted tobe used on railway cars which are ordinarily heated by steam from the locomotive.

My invention relates particularly to a heating system'` which may be used either as a low-pressure system, the steam. being throttled before passing through the heat# ing pipes, or as a high-pressure system, the steam passing directly from the train pipes to the heating pipes without any reduction in pressure, although the outlet from the controlling device will still be regulated by the thermostatic device.

For a detailed description of the present form of my invention, reference may be had to the following specification and to the accompanying' drawings forming a part thereof, in which- Figure 1 is a transverse sectional view of a railway car showing a heating system having my improved controlling devices ap-` plied thereto; Fig. 2 is a vertical sectional view taken on the line 2-2, Fig. 5; Figs. 8 and 4 are vertical sectional views of the valved portions of my improved controlling device showing the parts in the relative positions when the controlling device is being used to supply low-pressure steam or vapor to the heating pipes, and when used to supply high-pressure steam thereto, respectively, Fig.-3 being taken on the line Fig. 5.' Fig. L5 is a top plan view. j

In the drawings, the numeral 1 indicates l the iioor of the car, while the numeral 2 indicates the side thereof.

The numeral 3 indicates the upper or outgoing heating pipes for the steam, while the numeral 4 indicates the incoming or return heating pipes for the steam, both of these pipes being shown as arranged longitudinally of the car.

VThe numeral 5 indicates the casing of my improved controlling device, and the numeral 6 the thermostatic regulator attached to the said casing. The train line supply pipe for the steam is indicated by the numeral 7, and this is connected with thecasings of the controlling device 5 by the branch pipes 8.v The pipes 9 connect the upper part of the casing 5 with the steam heating pipes 3, while the pipes 10 connect the return steam heating pipes 4 with the casing 5 in which the outlet of steam and water or condensed vapor are controlled.

Referring now to Fig. 2, the numeral 11 indicates the hollow diaphragm in which a suitable eXpansible substance is contained, and which causes the diaphragm to expand along its transverse axis, according to the degree'of heat by which it is surrounded. This diaphragm is preferably located upon a suitable support, such as the spider 12, and mayl be adjusted to close the valves connected therewith at the requisite tempera-V ture, by means of the adjusting .screw 13. A plate 14 rests upon the top of the diaphragm 11 and is provided with a stem 15 which extends upward through the casing 16 where it connects with the valve stem 17 by means of a universal or ball-and-socket joint 18. A spring 19, having one end seated within the casing 16, and having its oppo site endlbearing against the plate 14, tends tov contract the diaphragm 11 against the pressure of the substance containedtherein. The port 20 in the casing 5, by means of which the return pipe 10 is connected with said casing, communicates with the chamber 21, the upper and lower ends of which are formed by the screw-threaded disks 22 and 23 respectively. In the chamber A21. andv held in position by said disks, is a suitable straining device 24, made of wire gauze or other reticulatedV material. The valve stem 17 rpasses through the disks 22 and 23 and is` provided with a series of parallel ridges 17 which form guides for the stem and at the same time allow the chamber 21 to communicate with` the chamber in the casing 16, through the valve 25. The upper end of the valve stem 17 is provided with a small groove 26, which forms a by-pass, and will connect the inflow chamber 27 with the chamber 21, so as to prevent the accumulation of water in the former, when the system is not in operation. Y

The numeral 28 indicates an adjustable valve member having transverse passages 29 therein, and a vertical passage 30 communicating with the chamber 27. The valve member 28 forms an adjustable valve seat when considered in connection with the valve stem 17, controlled by the thermostatic device. The valve member 28 is made adjustable by means of screw-threads 31 carried 'by the rotatable valve rod 32, which terminates in a square end 33, adapted to receive a suitable lwrench or hand-Wheel 34. The valve member 28 also cooperates with an opening in the valve seat 35, fixed in the partition 36, between the chambers 37 and 27. lt will thus be seen that when the valve member 28 is raised out of the cylindrical casing of the valve seat 35, there is a direct communication between said chambers 37 and 27 independently of the openings 29 and 30. The movable valve member 28 preferably has a loose tin the cylindrical portion of the valve seat 35, as indicated. This permits but little steam to pass around the valve member 28 when the valve is partially open and prevents friction by expansion or contraction. A. suitable screen of wire gauze or similar material surrounds the valve member 28 and serves to prevent particles of dirt, carried by the steam, from entering the chambers in the valve casing. The steam supply pipe 8 connects with' the casing 5 through the port 38, which communicates with the chamber 39. A hand operated valve L.t0 controls the admission of steam from the chamber 39 to the chamber 37, so that the flow of steam to the heating pipes connected with the valve casing 5 may be turned oft or on independently of the regulating or controlling devices.

In Fig. 3 I have shown the parts of my improved controlling device as arranged when the car is being heated by low pressure system of vapor. In this form vthe valve member 28 is in its lowest position against the seat 35 permitting the steam to pass through the passages29 and 30 only, the flow of the steam through said passages beingcontrolled by thevalve stem 17 In Fig. 4.- the valve member 28 is raised so as to permit. the flow of steam around said valve as well as through the passages 29 and 30. In this position the end of the valve stem 17 cannot contact with the valve member 28 or in kany manner regulate the How through the passage 30. Said valve stem 17 however, is free to move upward and downward to close or open valve 25, depending upon the degree of heat surrounding the diaphragm 11 and supplied by the outgoing steam or water. In this way the steam outlet is controlled of condensation is allowed to tiow away when high-pressure steam is used, as well as when low-pressure steam is used, and the valve member 28 is in its lowest position.

In operation the steam enters chamber 39 through pipe 8 and when' the valve 40 is raised passes through chamber 37 and the passages 29 and 30 into the chamber 27 and from thence through the pipe 9 to the radiator. The passage of the steam is controlled by the thermostatically operated stem 17. After passing through the radiator the steam and water of condensation enter the chamber 21 and flow downwardly past the valve 25 onto the plate 14 covering the thermostat 11. The valve 25 is so arranged as to independently control the steam outlet.

By the above description it Vwill be-seen that I provide a controlling device which maybe so manipulated as to instantly convert the heating pipes from a low-pressure to a high-pressure system, or vice versa, while at the same time no manipulation is necessary to regulate the action of the outlet or trap valve for releasing the water of condensation. The adjustment of the movable valve member 28 Y permits a wide range in the amount of steam supplied to the. heating system and Vtherefore enables the temperature of the interior .of the car tovbe controlled accurately and between wide limits. A further advantage ot' this arrangement arises from the fact that the outlet or trap valve is not allowed to cool to such a degree that the water of condensation therein may become frozen in cold weather while the steam is in the train pipe. lf the valve should become cooled to such an extent as to freeze the water therein, it may easily be thawed out by permitting the entering steam to pass directly through the valve when the steam is rstturned on.

Having thus described my invention, what I claim and desire to protect by Letters Patent is:

1. A controlling device for heating systems comprising a casing provided with a steam supply passage and a return passage, a hand valve controlling said steamsupply passage and provided with passages therethrough, a normally stationary valve seat with which said lvalve coperates, and a thermostatically operated member provided with valves for respectively controlling the flow through said return passage and the supply through the passagesin said hand y valve.

2. A controlling device for heat-ing systems comprising a casing provided with a steam sup ly passage and a return passage, an adjusta le valve seat, a valve coperating with said seat and controlling the steam supply passage and provided with passages l y therethrough, and av thermostatieally conindependently ot the inlet, so that the water trolled member provided with valves for respectively controlling the ow through said return passage and regulating the flow through the passages in said valve.

3. A controlling device for heating systems comprising a casing provided with a steam supply passage and a return passage, a hand valve controlling said steam supply passage and provided with passages therethrough, a normally stationary valve seat cooperating with said valve, a second valve member adapted to control the flow through said valve passages, a valve or controlling the flow through said return passage, and a thermostat for operat-ing the two last mentioned valves.

A. A controlling device for heating systenis comprising a casing provided with a steam supply passage anda return passage, a hand valve controlling said steam supply passage and provided with a movable member having a passage therethrough, a normally stationary valve seat provided with a cylindrical wall surrounding said movable member, and a thermostatically controlled member provided with valves forV respectively controlling the flow through said return passage and also regulating the iiow 'through the passage oii said movable member.

A controlling device for heating systems comprising a casing provided with a steam supply passage and return passage, a hand valve controlling said steam supply passage and provided with a movable member having a passage therethrough, a normally stationary valve seat provided with a cylindrical wall surrounding said movable member, a second movable member adapted to control the flow through the passage of said first mentioned movable member, a valve controlling the flow through said return passage, and a thermostat operatively connected with said second member and the last mentioned valve.

v6. A controlling device for heating systems comprising a hand operated inlet valve provided with a passage therethrough, a movable member controlling the flow of steam through said passage when the valve is closed, an outlet valve, and a thermostat operatively connected with said movable member and said outlet valve.

7. A controlling device for heating systems comprising a hand operated steam inlet valve having a passage therethrough, a valve seat coperating with said valve, a movable member for controlling the How of steam through'said passage when the val-ve is closed, any outlet valve, and a thermostat connected with said outlet valve and said movable member.

8. A controlling device for heating systems comprising a hand operated inlet valve having a movable part provided with a passage therein, a normally stationary valve seat provided with a cylindrical wall surrounding said valve, a movable member for regulating the iiow through said passage when the valve is closed, an outlet valve, and a thermostat operatively connected with said outlet :valve and said movable member.

9. 'A controlling device for heating systems comprising a casing provided with a chamber having a steaml inlet and a steam outlet, the latter leading to a radiator, a hand operated valve controlling the passage of steam through said chamber, said casing being also provided with a second chamber having an'inlet and an outlet, Saidv inlet communicating with the return from said Y radiator, a thermostatically controlled valve for regulating the flow through said second chamber, and a second thermostatically controlled valve cooperating with said hand valve to regulate the flow of steam through the iirst mentioned chamber.

In witness whereof I have hereunto set my hand and seal vbefore two subscribing witnesses, this 16 day of April, 1909.

THOMAS FARMER, JR.

yitnesses CORNELL S. HAWLEY, MORGAN F. MAcDoNo-UGH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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