USRE11148E - Temperature - Google Patents

Description

2 Shgets--Sheet 1. L. I. EASTON. TEMPERATURE REGULATOR.

No. 11,'148. Reissued Mar. 3, 1891.

Ziff/166566." 4

S' Q Pq f lucini'mom mA-MA- UNITED [STATES PATENT 'Omtrent Leolux n. nns'roxor LA cnossn, Wiscoxsix.

- TEMPEaATUaE- REGULAToa SPECIFICATION forming part of ReissuedLetters Patent No. 11,148, datecliMareh 8, 1891. riginal No. 432,866, dated July 22, 1890. Application for reissue filed January 13,1891. Serial No. 377,667.

To @Z whom it mo/y con-cera:

llc it known that I, LUCIEN F. EASTON, a citizc'n of the United Statesnfesiding at La Crosse,

in the county of La Crosse and State of Yiscensiti, have invented certain new and useful Improvements in Temperature Regulators, of which the vfollowing is a specification.

M y invention relates to apparatus for regun latingor controlling the temperature of apart ro ments automatically; and it consists in appa- Referring to lxig. l, A indicates a register' zofor the admission et' Warm air, and il a valve for the a flmission of cold air into an apartn1ent, these devices A and i3 being merely representative forms of controlling devices for regulating the supply of warm and cold air. C indicates a chamber provided with a movable wall or piston o, which latter is connected in any convenient manner with the valve or valves of the register A, so that upon the movement of theiienible diaphragm or pistou a in one or the other direction the valve or valves shall be opened or closed, as required. provided with a dexiblc diaphragm or piston b, which ifi/connected in any convenient manr" ner with the valve il, so as to open or close the saine, according to the direction in which the diaphragm or piston D 'is moved. The valve or valves of the register A will be arranged to open through the action ot' a spring, Weight, or equivalent device, (indicated by the letter E,) and the valve B will be so hung as to open by gravity, or will be provided-With an opening spring, Weight, or equivalent device, as may be found expedient. The chainbers C and D both communicate with a charnber l-` by means of suitable pipes, said chainber l? containing a cent-ral flexible ,diaphragm G, provided on its faccswith circular disks ll,'through which passes a central stem I, carrying at its ends disksJ J, which are ar-V ranged to seat alternately against tubular necks l( of the chamber l? and to closecom- :l l) represents a sinnlarchamber, also inunication with the interiorof the chamber Aat that side against which the disk .l at the time'bears. From the interior of the chamber'F and on each side of the diaphragm G a pipe L communicates with a common serv,- ice-pipe M, which by a branch N communicates with an exhaust vessel or chamber or with suitable exhausting apparatus, like communication being made with the service-pipe M from each apartment in which the teniperature is to be regulated, each of said apa-rtments b'eing provided with the apparatus herein described. Communicating with the chamber F and chambers C and D are pipes Ovand P, provided, respectively, with airain lets c and d, controlled by caps or valves e and j of the form shown in Fig. i or an sentiva# lent form. Q indicates the compound barot a thermostat,'com'posed of hard rubber and `brass or equivalent materials having diierl ent'degrees ot' expansibility under variations of temperature. As is well understood, such a compound har bends toward the metallic side upon an increase and toward the hardrubber side upon a decrease of temperature. Freni each of the caps er valves e and f a rod or stem h extends to and through the end of the thermostat-bar Q, Where it is headed to prevent the bar from moving off the end ot the rod, the stems being of such length as to permit a limited movement of the bar Q from its-medial position without acting upon the head of either rod. Between the bar Q and the caps e and f each valve rod or stein is encircled by a light spiral spring g, which serves to `transmit motion from the bar to the cap or valve in one direction and to allow for the movement of the bar after the valve is seated upon the mout-hof the air-inlet cor d, thereby preventing injury to the parts and insuring accurate seating of the valves. The` springs g also serve to hold the valvesnormally to their seats and .to retain them in such position until the bar Q acts upon the head of the rod or valve to be opened The pipes 0 and 1 are formed with enlargements i, which screw upon the necks K'and form 'chambers, within which the disks .l move un- .der the play of the diaphragm G. The disks J are enough smallerthan the interior of the chambers to permit the passage of air around them into chamber F, and as a matter of conof the chamber F leaving communicationY l closed, so that air may not enter through theA `air-inlets c and (l and pass by pipes O and P to I unseating the right-hand disk J.

venienee the pipes which connect the chamvder normalconditions the diaphragm Gwill occupy a medial positio'n between the=walls open from both. the chambers c and d to the chamber F and by way of said chamber and pipes L to the service-pipe M. The Valves e and fwiil also under normal conditions be the chamber F, and thence to the service-pi pe M and by it to the exhaust chamber or apparatus. Under these condit-ionsbothof the valves Aand B will be closed bythe action of thevacuum. If, however, vthe temperature falls, the thermostat Q will bend over and open the ai r;in let d. This allows the external air to destroy thevacuum in chamber C and the springEto pull open the valve or damper A. The atmospheric pressure on the right side of the diaphragm G will force the diaphragm to the left, carrying with it and seating the righthand valve-disk J. This .prevents the destruction of the vacuum in the main M. The admission of heat to the'apartment through the register A will then tend to raise the temperature and cause the thermostatQ to bend to the right. Such bending first closes the air-outlet d and then opens the air-inlet c. This causes a destruction of the vacuum in the chamber D and a consequent opening of the ventilator B. rlheatmospheric pressure on thev left-hand side of the diaphragm G will force the diaphragm to the right, carrying with it and seating the left-hand disk J, and

This will allow' the vacuum in the pipe M to exhaust the air from the chamber C, and the consequent collapse of the diaphragm a will close the hotair valve A. The position willthenbe as shown in Fig. l.

Referring now to Fig. 2, the use of pressure instead of vacuum will be explained, like letters' representing like parts inthe two struct- 4u res as far as practicable. 'A indicates a register for the admission of warm air; B, a ventilator or cold-air inlet; C, a chamber pro- -vided with a iiexible diaphragm a, connected with the valves of the register A in such manner asthat upon the admissionef compressed air to the chamber C the register shall be closed; D, a similar chamber provided with a flexible diaphragm or piston b, connected .with the cold-air-inlet valve B in such man-V ner that upon the admission of compressed air tothe chamber D the ventilator B shall be closed, and() the compound bar by which the action of the apparatus is controlled'. F indicates a chamber containing a central flexible diaphragm G, which is arranged to seatalternateiy against annular seats K'on opposite sides of the chamber, and 'L L indicate .pipes connecting bya common servicepipe M with a compressed-air reservoir or warm and cold air inlets.

compression apparatus, as indicated, communcation being similarly established with like apparatus in the other apartments in which the temperature is to be controlled. "The pipes O and 1 are. provided-With air-vents c and (l, respectively, controlled by valves e andf, as shown. Each valve e and f is provided with a stem encircled by a light-closing spring'g, by which it .is normally pressed to its seat, the stem of each vaive protruding through the closing plug or endA of the pipe O orP in which it is placed and extending outward in such position to be acted upon by the moving `end of the compound bar Q. Under this construction and arrangement of parts it follows that so long as the barQ is in its normal position and out of contact with the stems of both valves e and f the compressed air from the reservoir or the compressing apparatus will befree to pass into chamber F on both sides of the diaphragm G, and being unable to escape through either vent c or d will pass into the chambers C and D and press outward the flexible diaphragm or pistons and close the Assuming, however, that the temperature rises above the prescribed limit, the bar Q, moving in conseu quence toward the metallic side, will press back the. stem of valve e and open the'vent c, thereby` permitting air to escapethrough saidvent from pipes O and j and chamber D, thereby permitting the diaphragm or piston b to fall and allowing the valve of the cold-air inlet B to open, the air being thus permitted to escape from the system of pipes and. chambers at the left of the diaphragm Gr,

but the system at the right-hand side thereof being sealed and containing a body ot air nhder pressure the diaphragm G will immediately more over to and seat upon the` annular bearing or scat K at its lett, thereby clos-` ing communication between the compressedair chamber or the compression apparatus and IIO the system at the left, ofthe diaphragm and preventing of waste of compressed air. This condition will continue until the temperature is' sufficiently lowered and the bar Q resumes piston a toV fall and to open or permit the opening of the register A or other valve or dam per regulating the admission of warm air.

Then through At the same time, owing to the relief of pressure at the right-hand side of.. the diaphragm G, said diaphragm will, under the iniiuence ot' the compressed air from the chamber or compression apparatus, beforeed over against its seatat the right-hand side of the chamber F, thereby preventing the escape or Waste of compressed air at the right-hand side of the passing updiaphragm, the compressed air ward on the left-hand side ofthe diaphragm through pipe j to chamber' D and closing the valve of the cold-air'nlet B. The parts will remain in -the position lastv indicated until the temperature is restored to the predeter mined degree and the bar Qv resumes its normal medial position, and thus the parts will act alternately to admit warm or cold air, as conditions require.

Although both 'in Figs. l and 2'a ventilator as well as hot-air register is shown, it is not necessary tothe operation of the device, and I do not confine myself vto the use of both. ln ordinary househeating practice but one valve or damper is preferably cperated,whiie in a store-room a ventilator" alone might be desirable.

lt will be apparent that those ports which serve as inlets when the apparatus acts by vacuum or suction will serve as outlets when operating with pressure, and that those ports which serve as outlets when operating with vacuum will serve as inlets when operating with pressure; or, in other words, that inletports .become outlet-'ports and outlet-ports become inlet-ports. in changing from either plan to the other.

Havingthus described rn y invention, what l claim isl. In a temperature-regulating apparat-us,.

the combination ot a fluid-main common-to two or more apartments and communicating with apparatus for varying thepressn re within the main, a cham-ber containing a central diaphragm or piston and oommunicatingon opposite sides of said diaphragm or piston with said main, two chambers, each containing a movable diaphragm orpiston and respectively communicating with opposite sides of the inst-mentioned chamber, a warm-air valve or damper connected with the piston er dia.- phragm of one of said chambers, a cold-air valve or damper connected with the piston or diaphragm of the other of said chambers, airinlets communicating with said chambers', rcspectively, air-vents communicating with said chambers, respectively, and a. thermostat arranged, substautially as set forth, to act upon. saidfvalves and to open or close them alternatel y as the temperature rises above or falls below the prescribed limits.

:3. A temperatureregulator-consisting of the following' elements: a service-main communicating with a pumping apparatus for producing pressure or suction as required, a

chamber containing a central diaphragm or pistou,` passages opening from opposite sides of the piston or diaphragm into the main, valves or disks carried by the. central diaphragm orpiston and serving to open one and close the other side'of tl1cchamberalternate= ly, a secon d chamber con taining a flexible diaphragm or partition, a cold-air valve or damper connected with an d movable by the diaphragm or partitionof said second chamber, a third;

chamber, alsqprovided with a iienible diaphragm or partition, .a Warm-air valve orl damper con nected with and controlled by said diaphragm or partition, two ai rlvents, each communicating with one side ofthe firstchampiston G, pipesL L, connecting opposite sides ef said chamber with the main lfLstcm Learried by the pieten or 'f G and proses O and P,

vided with disks er valves provided, respectively, with' valves e j", applied to'said vents, chamd bers C 4and l), provided, respectively, with diaphragme er pistons te and h, ceid=air valve B, connected with the piston er diaphragmh, warm-air valve A, connected with the Apiston 4a, and thermostat Q, arranged, substant-iallj,Y

as shown and described, toactnate the valves c and f. i v

4. ln a temperature-regnlator, the combination, with a hot-air valve or regulator and a cold-air valve or regulator, of movable diaente c `and L phragms or pistons for actuating the same, a

service-main, an intermediate chambercontaining a central diaphragm orpiston, airvents arranged one to admit'air *to one side of the intermediate .chamberand to the piston controlling the cold-air valve, to admit air to the other side of the intermediate chamber" and to-the piston of thel Warm-air valve, valves controlling said vents, and a thermostat 'adapted to actuate said valves alternately as the temperature rises above or falls below the predetermined point.

5. In a temperature-regulator such as set forth, .,an airvent c, a valve e, provided with ,a stem h, a spring g,encircling said stem and' serving normallyto seat the valve and close the vent, and a thermostatic bar Q, arranged to act upon said stem and to open the valve' when the bar moves in the proper direction.

6, In a temperature-regulator, the `combi- -nation of a chamber, a movable partition within `said chamber, four ports, two c njeach side of said parution, one port on each. side communicating with the atmosphere and the the other IOO ros

other with a main or reservoir, two valves, one on each side of and operated by the partition to control the passage ofiiuid through the chamber, a thermally-controlled valve applied Vto each of the portscommunicating with the atmosphere, anexpausible'and contractiblc chamber connn-unicating with one of the ports open-ing 'to the atmosphere at a point between the thermal valve and the partitionactuated valve, and a damper, valve, or like device connected with a movable part of 'the expansible and cont-factible chamber;

7.*Ivn a temperature-regulator, 'the combination of a chamber, a movable partition therein, four. ports, two on eachside of said partition, one port on ea'oh'side communicatlng with the atmosphere andthe other com- 'mumcating with mainor reservoir, two valves, one on each 51de of and operated by the partition to control the passage of fluid through the chamber, a thermally-controlled valve applied to each of the ports in comxnnncation `with the atmosphere, two' expansible and contraotible chmnbere, each communicatiug with one of -the ports opening tov f the atmosphere at a point between the' theie mal valve thereof and the partition-aetnsfed valve, and two valves, dampeis, or like de vices; each connected with a. movable pai-t of one or the other of said ex'pansible and contraotible chambers. 4

LUCIEN F. EASTON.

n- Witnesses:

W. E. LOCKERBY, M. J. LUNDE.

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