US1540035A - Automatic regulator - Google Patents

Description

' 2 Sheets-Sheet 1 IIVVENTOR 6/2 deceased,

A. ROESCH AUTOMATIC REGULATOR Filed Aug. 1921 WITNESSES 52 duflk; Q/Q4%( Jun 2, 1925.

ATTORNEYS June 2, 1925,

A. ROESCH AUTOMATIC REGULATOR 2 Sheets-Sheet 2 Filed Aug. 1921 WI TNESSES Patented June 2, 1925. y

r UNITED STA ES A 1,540,035 PATENT OFFICE;

ALFRED nonson, nEoEasEnrArE or BROOKLYN, NEW YORK, ,BY'YEMMA nor-son, AnmrNIs'raA'rmx, orBBooK N, EW roan, ASSIGNOR 'ro CHARLES J. TAGLIABUE "MANUFACTURING 00,01 B tooxLYN', NEWYORK, A CORPORATIO or NEW YORK.

auroitarro 'nneum'roa;

Application filed August 9, 1921. SeriaI No. 491,048. I

' To all whom it may concern;

Be it known that ALFRED Rfonson, de ceased, late a citizen of the UnitedStates, and resident of the boroug of Brooklyn,

6 county of' Kings, city an State of New York, has invented certain new and useful Im roveme'nts in Automatic Regulators, of

which the.- following is a specification.

.The invention relates to regulators where- 1 by temperatures or pressures are automatically regulated in accordance with predetermined desires or lans. "Heretofore regulators ofthe typ'gin questionwhich, generally speaking, include a valve-operating dia- 15 pliragm having noinherent elasticity of its own, have depended for their adjustment to' various temperatures or pressures and for collapsing the diaphragms and for resisting the internal pressures withinthe diaphragms 20 upon the use of springs, weights or fluids under pressure. The object of this invention is to provide an eflicient and simple construction 1n which the elements recited above are eliminated and replaced by inherently elas- 2 tic devices connecteddirectly with the valve lator operatively combined. with a hot wa r heater; Fig. 2 is an enlarged detail elevation partly in section; Fig, 3 is a sectional elevation on a still larger scale illustrating a novel stufling-box arrangementforming part of the invention, and Fi 4 is a plan view 'on' an enlarged scale i1 ustrating the adg'usting arrangements of the improved reguator.

In the illustrated example 5 represents a tank containing water and provided interiorly with a'heatin coil 6 which is vin connection with a pipe leading to a source of steam or otherheating medium and conit'rolled by a valve 8 of any suitable type. The valve 8 is carried by a-vertically movabl'e stem 9, having" its u per end-screw.-

threaded for the accommo ation o:|:'v an adjustingi nut 10 which constitutes an adjustperiphery with note es or the like adapted able abutment for one end of a spring 11 which serves, whenfree to do so, as'will. appear more. fullyhereinafter, to actuate thestem 9 upwardly and thereby keep valve 8 openythe upward travel ofstem 9, in such,

. case, being limited in the customary manner, 60

by the usual form of disc holder. Thei stem 9 is further arranged to beoperated in&

adownward direction by'a rod 12 opera-l tively connected with a capsular spring 131 which latter is preferably connected with a os plurality of capsular springs 13 which are connected with each other by means of tubes 14. The upper one of said plurality of capsular springs 13 may be attached'to a-hollow stud 15 which passes through asuitable opening in the upper portion of a bracket or support 16 and which'stud 15 is threaded at its upper end for the accommodation of an adjusting disc 17. The latter, as shown in Fig.4, is preferably provided onits upper face with suitable graduation marks 18 and designations 19 to facilitate the setting of the' regulator; said disc 17 is'further pretterably providedu on its circumferential.

to co-operate with ,a pawl 21 whereby unintentlonal shifting of the adjusting disc 17 from jarring or vibrationis' prevented. The

'pawl 21 is-carried by a'spring 22 and is yieldingl maintained thereby in engageat ment wit the notches 20; the s ring 22in turn is mounted upon the brac et 16. A spring 15 which surrounds the stud.15,belowjthe bracket 16 and with one end engages the same and vWithits other end en-. M ages the upper'capsularj spring 13 keeps t e series ofcapsular sprin I3 and the rod 12 pushed downward as 3.1 as ermitted by the"adj usting disc 17, the ownward movement of which is arrested by the bracket.

vent'the adjusting disc 17- 'from being'entirel unscrewed from the stud 15.. The diap ragms of the capsular springs 13 are constructed of s ring-tempered material so that each capsu' ar spring possesses an in '16'and into which disc v17 the stud1 5i's herent elasticity tending to return it to its normal condition or, in other words, to collapse it. As stated,-the lower terminal capsular spring 13 is connected with the rod 12 while the other terminal capsular spring 13 is connected in the present instance with the'capillary tubing 24 leading to the'sensitive member or bulb 25 which contains a suitable volatile fluid in the usual way. When the regulator is used as indicated in the illustrated example, the'sensitive member 25 is located interiorly of the tank. 5 so as to extend into the water therein which is to be heated and regulated.' The sensitive 1 member 25 is alwa s located so as to be sustion is replaced by a suitable device or element located in such case so as to be within the zone of the. pressure which is to be regulated.

In describing the operation of the regulator the illustrated example of its use will be utilized as a basis, it being understood that this is done simply-for the purposeof description and without intent todefine the limits of the invent-ion.

To begin with the adjusting disc 17 is rotated in the proper direction to move the rod 12 upward and in a direction away from the stem 9, thus permittingthe spring 11 to actuate valve stem 9. upwardly and thereby move thevalve 8 to its wide open position after which the heating medium is turned on, for instance, by opening a suit.- able control valve located anywhere be tween the valve 8 and the source of said heating medium, which latter enters the heating coil 6 and thus heats the water in the tank 5. When the water has reached the desired temperature the adjusting disc 17 is rotated in the reverse direction to move the rod 12 downwardly and against the stem 9 which, as the actuation of the disc 17 is continued, is correspondingly shifted'to close the valve 8 far enoughto admit the amount of heating medium necessary to maintain the water at this temperature to .the coil 6; should the temperature of the water now rise above or fall below the predetermined point it will'be regulated by the action of the capsular springs 13 upon the valve 8. That is to say, when the temperature of the water rises beyond the desired point the temperature of the volatile fluid in the bulb 25 also rises whereby said fluid is expanded and thus creates a higher pressure in the bulb 25 and tubing 24 which causes the capsular springs 13 to expand. This expansion of said springs is communicated to the rod-12 and thereby to the valve stem 9 and-causes an axial movement of the. latter in a direction to move the valve 8 to'-' ward itsseah, In this way the supply of 'heating medium to the coil 6 is correspondingly reduced with the result that the tem perature of the water gradually falls back to the degree desired, the capsular springs 13 meanwhile contracting as the pressure of the volatile fluid is reduced and carrying the rod 12 along whereby the spring 11 is permitted to return the valve 8 to the open position initially occupied thereby.

consequently contract or collapse, because of the inherent elasticity of the diaphragms thereof. The result of this collapse of said springs 13 is an axial movement of the rod 12 in a direction away from valve stem 9, thereby allowing spring 11 in turn to cause an axial movement of the valve stem 9 in heating medium to the coil 6 is increased and the temperature of the water is raised back to its intended point. 1

From the above it will be clear that the valve 8 is set to admit suflicient heating medium to the coil 6 to produce the tempera ture in the water which is desired and that said valve 8 is automatically closed or opened beyond this set point by the action of the capsular springs 13 if said temperture rises or falls beyond the desired point and is always returned to its set position after each use or fall. In this way the temperature of the Water in the tank 5 is regulated in the desired manner and is maintained at an approximately constant point in accordance with the predetermined plan.

The battery of capsular springs 13 provides the necessary range of movement to move freely between two or more valve packings and thus avoids the friction resulting ordinarlly from a bearing contact between metal parts. A preferred arrangeshows'how friction is further reduced by operate the valve 8 within its limits of ad-.

ment is shown in detail in Fig. 3 which also the use of a smaller-valve stem (made possible by widely spaced bearing surfaces) and how said stem' is protected from damage;

In the illustrated example 26 indicates two valve stem packings of suitable material, between -whichthe stem 9 slides, said ackings being located in the gland 27 and t 1e lower to operatively connect said bonnetwith the bracket lfi; the gland 27 inv turn is secured within extension; 30 by means of a sleeve 32 which is in screw-threaded engagement with extension 80, said sleeve 32, also serving to protect from outsidedamage that ortion of the valve-stem 9 which'projects eyond the gland 27. The proper compression of the packings 26-is maintained by the spring 11 which has its one end in engagement with the follower 29 and which, 'in addition to lifting valve-stem 9, also serves the purpose of always keeping said packin s 26 under the required pressure-thus at al times preventing leakage of the steam past the packings without undue pressure of the packings against the valve-stem.'

Another novel feature of the present invention comprises an indicator 33 mounted upon the rod 12 by means of a collar 34 and which consequently travels up and down with the. movement of the rod 12 'and therefore also with the movement of valve-stem 9, thus indicating'the extent to which valve 8 is closed; the condition of the valve is indicated by the tip of said pointer 33 which registers with a suitable mark 35 on the sleeve 32 when the valve is fully closed or if valve 8 is onl partly closed by the distance between said tip of thepointer 33 and the mark 35.

It will be obvious that a cooling medium may be passed through the pipe 7 and coil 6 instead of a heating medium if the conditions incident to the desired operation require that this be done.

The regulator may be used with equal efliciency as a pressure regulatorby connecting the tube 24 with the source of the pressure which is to be regulated. It is th'erefore 'to be distinctly understood that the terminology used in the. claims is intended to cover pressure regulation as well as tempcl'ature regulation.

Various changes in the form shown and described may be made within the scope 'of the claims without departing from the spirit of the invention.

I claim:

1. An automatic regulator comprising a valve controlling the flow of an element, adjusting mechanism operated independently of said valve for adjusting the same to variable set positions to regulate'the flow of said element in accordance'with a predetermined regulation to be maintained,'an expansible and contractibl'e device included'in said adjusting mechanism and having an inherent elasticity, said device responding to variations in said element and actuating said adjusting mechanism accordinglv whereby the valve is automatically shifted from any given-set posltion in accordance to increase deviations from said predetermined regulation, and means independent of said. ad.- justing mechanism for indicating the position oi said valve. i

2. An automatic regulator comprising a valve controlling the. flow of an elcment,a plurality of. capsular springs connected with each other independentl of said valve and arranged to control sai valve, and an adjusting device whereby said capsular springs v are. bodily moved as a unit relatively to said valve to predetermine a set position of the latter to regulate the flow of said element in accordance with a predetermined regulation to be maintained, said capsular springs responding to variations in said element whereby the valve is automatically moved from a given set position in accordance to or decrease the flow of the latter to correct increase or diminish the flow of-the latter to correct deviations from said predetermined regulation. 2

An automatic regulator comprising a k valve controlling the flow of a heating ele--' ment, a plurality of capsular springs com-- municatmg with each other, a device extendmg from one terminal spring toward said valve in independent relation thereto, an

adjusting device whereby said capsular springs are bodily moved as a unit relatively to said valve to predetermine a set positioif of the latter to regulate the flow of said element in accordance with a predetermined regulation to be maintained, a capillary't-ube connected. with the other terminal capsular spring and a heat sensitive member connected with said tube, said capsular springs being responsive to said heat sensitive member whereby said valve is automatically moved from given set position in accordance to increase or diminish the flow ofsaid element to correct deviations from said predetermined regulation. 7

4:. An automatic regulator comprising a valve casing, a valve therein for controlling the How of an element, a valve-stem on which said valve is mounted, a support fixed upon said valve casing, a rod slidably mounted upon said-support in axial registry with and independent of said valve-stem, a plurality of capsular springs connected with each other and carrying said rod, an adjusting device for bodily moving said capsular springs as a unit relatively to said stem to predetermine a set position of said valve in accordance with a predetermined regulation to be maintained, and means for indicating the adjustment of said device, said capsular minish the flow of said element to correct deviations from said predetermined regulation. v i

'5.- An automatic regulator comprising a valve casing, a supporting bracket mounted upon said'casing, a stuffing-box, a valve in said casing forcontrolling' the flow of an element, a valve stem carrying sald valve and projecting through said stufling-box, an

abutment adjustably' mounted upon" said valve-stem, a spring engaging said abut-- ment and tending to move said valve to an open position, a sleeve secured upon said stuffing-box and enclosing the projecting end of said stem, a rod extending into said sleeve and adapted to engage said stem, a plurality of capsular springs connected with each other and with said rod, a hollow stud carrying said capsular springs and slidably mounted on said bracket, an adjusting disc mountedgupon said stud and co-operating with said bracket to bodily move said capsular springs and rod as a unit. whereby said valve is adjusted to a set position in accordance with a predetermined regulation to be maintained, a spring whereby saiclcapsular springs are maintained in an adjusted position a capillary tube connected with said stu said valve predetermine a set position of said predeter-- the latter to regulate the fiowofsaid element in; accordance with a predetermined regulation to be maintained, said capsular springs responding to variations in said ele-v ment whereby the valve is automatically moved from a given set position in accordance to increase or diminish the flow of the \latter'tocorrect deviations from said'predetermined regulation and means independent of said adjusting device for indicating the position of said valve.

7, In an automatic regulator, the combination of a valve, adjusting means for predeterminingvarying set positions of said valve, the latter and said adjusting means having no positive connection with each other and being capable of independent movement and means for automatically moving said valve from its set position.

8. In anautomatic regulator, the combi nation of a valve'casing, a, tubular exten sion thereon, a valve, a valve stem carrying said valve and projectin into said extension, a spring within sai extension cooperating with said stem to move said valve in one "direction, a rod independently slidable in said extension and adapted to engage said stemland to move toward and.

away from the same and thermo-sensitive I means for operating said rod to automatically actuate said valve in the opposite direction.

9. In an automatic regulator, the combi nation of a valve; a valve stem carrying the same,'a plurality'of packings for said stem,

tubular members engaging said packings, a

projection on said stem, a spring engaging said projection and one of said' tubular members whereby said valve is actuated in one direction and said packings are com pressed and'thermosensitive means for operating said valve in the opposite direction. 7 EMIMA ROESCH, Administmhz'a: of Alfred Roeseh, deceased.

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