US1602886A

US1602886A - Device for controlling the flow of fluids

Info

Publication number: US1602886A
Authority: US
Inventors: David C Davis
Original assignee: Westinghouse Electric and Manufacturing Co
Current assignee: CBS Corp
Priority date: 1923-08-13
Filing date: 1923-08-13
Publication date: 1926-10-12
Anticipated expiration: 1943-10-12

Description

Oct. 12 1926.

Filed August 13. 1923 of d Patented bot. 12 1926.

UNITED STATES navmo. navrs, or manna, rnmrernv'ama; assrenon ro wnsrmeurorrsa meme An muracrume column, A CORPORATION ianvrcn iron coarser-ante an new or rams.

, Application fled August 18, im. Serial no. man. v

' These and other obi'lects, which will be made apparent throug out the further descri tion of the invention, may be attained b the employment of the apsaratus hereinater described and illustrate in the accompanying drawing in'which the single fi re 13 a diagrammatic illustration of one orm evice in which my invention, may be practiced.

' Described generally, the invention resides in actuating'a cook or valve of any welllmown construction by the movements of twosolenoids, one solenoid be arranged I to .0 en' the valve while the remaining sole- ,noi is arranged'to. close the valve.

motor 10 an mit the flow of the flui nected to the 'operatin Upon electrical current'bein transmitted to the device& the "firstsolenoi ismomentanly ener and moves toopenthe cock to peractuates -a current control device which 'The fluid is permitted to flow through t e valve until such time as the closin solenoid is energized, whereupon the valve 1s closed and the motor is disconnected from the circuit.

to the drawing for a more de Referring tailed descri tion of my invention, I show a a yalve 11. The valve 11 ma be of any well-known construction which is adapted to be opened and closed as'b an operating lever 12. The free end 0 the operating lever 12 is secured to an arcuate arm '13 havin disposed at one end a ing solenoid 4, and at its remai end a closing solenoid 15. A'spring 16 is confix d g lever 12 and to a is installed under tension and isso arran ed as bias the operating lever 12 to eit er a c osed or an open position, thereby mini- This solenoid also be with a source of n openoint 17, which is located comedic tance elow the center line of the cock 11. .It-

FATE-INT OFFICE.

mizing any tendency for the lever to come Arranged concentrically about the core members are the resplective coils 20' and 21. One terminal of eac of the solenoid coils .20 and 21 is connected through conductors 22 and 23 to the respective

fixed contact points

24 and 25 of a two-way switch 26, the blade of which is in .turn connected througha conductor 27 to operated in any desired manner, that is, manuall or by automatic means.

. Associated with the solenoid coil 20 is a current control device 29 embodyin by a non-conductin element 32. The coil 20 is connected to t e spring 30 while the spring 31 is connected through a conductor 83 to the side 28 of the so ply circuit. The free ends of the s rings and 31 are mounted to age e fixe contact members 84 or 35, respective y. The rings 80 and 31 are normally biased upwaz contact member 34 is connected throu ha conductor 37 to the o 'posite side 0 the supply circuit at 38, while the contact memr is connected through a conductor 89 to one terminal 40 of the motor; 10. The other terminal 40' ofth'eimotor 10 is connected through a conductor 41with a fixed contact member 42 adapted to engage aspring 43 which, together with a similar spring 44, form a current control device 45 which is in general, a duplicate. of that at 29 except for the fact that the fixedv contact member 51 for the lower s ring is mounted thereover rather than ereunder. The spring 43 is connected throu h conductors 4 and 48 to the side 38. of t e sup 1y circuit. The spring 44 is connected t on h a conductor 49 to the solenoid coil 21, while its remaining end may engage a fixed contact member 51 which. is connected throu h a conductor 52 and the conductor 48 to-tie side 38 of the supply circuit. I The core 18 carries an extension 86 to engage the

sprin

30 and 31 and the core 19 carries a simi ar extension 46 to engage the'springs 43 and 44.

The operation of the above: device is as the one side 28 of a supply circuit. The switch 26 may be vre--

silientsprings

30 and 31 which are oined as shown. The

follows: Upon the switch 26 being closed at the contact 24, a circuit is formed and the current flows from the side 28 of the circuit to energize the 'coil 20- of the opening solenoi'd 14, thence through the spring 30 and, by'means of the contact 34 and the conductor 37, to the side 38 of the supply circuit. Upon suilicient magnetic influence eing exerted, the core member 18 together with the arcuate arm 13, the core member 19 and the operating lever 12 are. moved in a clockwise direction a suflicient distance to fully open the valve 11 to permit the fluid to flow therethrough. The motion of the operating lever 12 is accelerated by the spring 16, the tension upon which is gradually reduced as the operating lever is moved from its midposition,

Upon the extension member 36 engaging the current control device- 29, contact is broken at the member 34 and established at the member 35,- de-energizing the solenoid 14 and energizing the motor 10. Current flows from the motor to the side 38 of the circuit by means of the conductor 41 the spring 43, and the conductors 47 and 48.

The motor is continually energized and the operating lever 12 remains in such a position as to permit the fluid to flow through the valve 11 until such time as contact isostablished' at 25 in the switch 26. Current then flows through the conductor 23-to energize the coil 21 of'the closing solenoid 15, from whence it flows through the conductor 49, the sprin 44, and the

conductors

52 and 48 to the si e 38 of the supply circuit.

Upon the coil 21 becoming energized, the core member 19 together with the arcuate arm 13, the. core member 18'and the operating lever 12 are moved in a counter-clockwise direction a sufiicient distance to fully close the valve 11, thereby shutting off the flow. of the fluid and permitting the spring 31 to return to its normal position and open the circuit to the motor. Upon the extension 46 striking the current interrupter-45,

the springs 43 and 44 are disengaged from the contact members motor circuit and also breaking the circuit of the closing solenoid coil, thereby de-energizing the solenoid and permitting the device to remain inactive until such time as contact is resestablished at 24, whereupon the cock is opened to permit the flow of the fluid and coincident therewith current is permitted to flow to energize the motor.

As may be ascertained from the above description, the closing solenoi'd 14 and the current control device 29 form a positive closing means for the motor circuit, while the o ening solenoid 15 and the current co'n trol evice 45 form a positive opening means for the motor circuit, thereby insuring the' makin and breaking of the contacts regardless 0 any tendencies toward adhesion of 42 and 51, breaking the aeoasse the enga ing elements. Furthermore, the closing 0 the motor circuit is arranged'instantaneously with the o ening of the valve, any possibility of the valve opening lagging behind the starting of the motor, being eliminated. In addition to the above, it may be noted that the solenoids are only energized momentarily, the amount of current cons sumed thereby bein reduced to a minimum.

Apparatus of t e character described herein is especially adapted for use in connection with compression refrigerations of the household type which employ water as a condensing medium. Refrigerators of this type usually operate intermittently; that is, aperipd of operation of from one to one and one-fourth hours is followed by a period of inactivity of from one and onehalf to two hours, the length of the periods depending upon the duty imposed upon the re rigerator and upon the setting of the automatic devices which control the switch for portant item in-the operating costs of apparatus of this character. I have found, that with the use of the fluid control device here above described, a positive and complete opening and closing of the water control valve is accomplished coincident with the starting and stopping of the motor, thereby avoiding any excessive use of condensing water and incidentally reducing the operatin costs materially.

ile I have shown my invention in but one form, it will be obvious to those skilled in the art that it is not so limited, but is susce tible of various other changes and modi cations without departingfrom the spirit Ythereo and I desire, therefore, that only such limitations shall be placed thereupon as are imposed by the prior art or as are specifically set forth in the appended claims.

' What I claim is 1. In a device for controlling the flow of fluid, the combination of motor means, a valve, and electro-magnetic means for operating the valve coincident with the starting and stopping of the .motor means, said means being de-energized except at the instant of starting or stopping.

2. In a device for controlling the flow of fluid, the combination of a motor, a valve, and electromagnetic means for opening and closing the valve coincident with the startand for disconnecting the motor from the source of electrical energy.

4. In a device for controlling the flow of fluid, the combination of a motor, a current control device arranged in. series with the motor and a source of electrical energy, electro-magnetic means for operating the valve and for actuating the current control device, whereby the valve is opened and closed coincident with the starting and stopping of the motor, said electro-magnetic means being energized only during the operation of the valve.

5. In a device for controlling the flow of fluid, the combination of a valve, a motor, a current control device arranged on each side of the motor,'said current control devices being arranged in series with the motor and a source of electrical energy, an opening solenoid and closing solenoid for actuating,- respectively, the current control devices and for operating said valve, and means for energizing and de-energizing the solenoids.

6. In a device for controlling the flow of fluid, the combination of a motor, a valve, a lever for operating the valve, a solenoid for moving the lever to close the valve, a solenoid for moving the lever to open the valve, 21 current control device associated with each solenoid, said current control devices being arranged in series with the motor and a source of electrical energy, and means for energizing either one of the solenoids, whereby the valve is actuated, and the motor is connected or disconnected to a source of electrical energy.

7. In a device for controlling the flow of fluid, the combination of a motor, a valve, a lever for operating the valve, a' solenoid for moving the lever to close the valve, a solenoid for moving the lever to open the valve, means for biasing the lever to an opened or closed position, a current control device associated with each solenoid, said current control devices being arranged in series with thelmotor and a source of electrical energy, and means for energizing either one of the solenoids, whereby the valve is. actuated, and the motor is connected or disconnected to a source of electrical energy.

8. In a device for controlling the flow of fluid, the combination of motor means normally energized, a valve, electro-magnetic means for actuating, the valve, and means for temporarily energizing the electro-magnetic means to actuate the valve coincident with the starting of the motor means.

9. In a device for controlling the flow of fluid, the combination of a motor, a valve, electro-magnetic means for opening the valve, electro-magnetic means for closing the valve, means for momentarily energiz ing the opening electro-magnetic means c0- incident with the starting of the motor, and means for momentarily energizing the closing electro-magnetic means coincident with the stopping of the motor.

In testimony whereof, I have hereunto subscribed my name this 2nd day of Aug.

DAVID C. DAVIS.

and for disconnecting the motor from the source of electrical energy.

5. In a device for controlling the flow of fluid, the combination of a valve, :1. motor, a current control device arranged on each side of the motor, said current control devices being arranged in series with the motor and a source of electrical energy, an opening solenoid and closing solenoid for actuating,- respectively, the current control devices and for operating said valve, 'and means for energizing and de-energizing the solenoids.

6. In a device for controlling the flow of fluid, the combination of a motor, a valve, a lever for operating the valve, a solenoid for moving the lever to close the valve, a solenoid for moving the lever to open the valve, a current control device associated with each solenoid, said current control devices being arranged in series with the motor and a source of electrical energy, and means for energizing either one of the solenoids, whereby the valve is actuated, and the motor is connected or disconnected to a source of electrical energy.

7. In a device for controlling the flow of fluid, the combination of a motor, a valve, a lever for operating the valve, asolenoid for moving the lever to close the valve, a solenoid for moving the lever to open the valve, means for biasing the lever to an opened or closed position, a current control device associated with each solenoid, said current control devices being arranged in series with the motor and a source of electrial energy, and means for energizing either one of the solenoids, whereby the valve is actuated, and the motor is connected or disconnected to a source of electrical energy.

8. In a device for controlling the flow of fluid, the combination of motor means normally energized, a valve, electro-magnetic means for actuating the valve, and means for temporarily energizing the electro-magnetic means to actuate the valve coincident with the starting of the motor means.

9. In a device for controlling the flow of fluid, the combination of a motor, a valve, electro-magnetic means for opening the valve, electro-magnetic means for closing the valve, means for momentarily energizing the opening electro-magnetic means coincident with the starting of the motor, and means for momentarily energizing the closing electro-magnetic means coincident with the stopping of the motor.

In testimony whereof, I have hereunto subscribed my name this 2nd day of Aug.

DAVID C. DAVIS.

Certificate of Correction.

It is hereby 1926, upon the improvement in the printed specification 1' certified that in Letters Patent No. 1,602,886, granted October 12, apgcation of David C. Davis, -of Chester, Pennsylvania, for an vices for Controlling the Flow of Fluids,

errors appear in uiring correction as follows: Page 3, lines 53 and 54,

claim 8, strike out the wor s normally energized, and line 55, after the word means, first occurrence, said Letters insert the words normally tie-energized; and that the Patent should be read with these corrections therein that the same migy conform to the record of the case in the Patent Olfice. igned and sealed this 14th day of December, A. D. 1926.

M. J. MOORE, Acting Commissioner of Patents.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,602,886, granted October 12, 1926, upon the a lication of David C. Davis, of Chester, Pennsylvania, for an improvement in evioes for Controlling the Flow of Fluids, errors appear in the printed specification re uiring correction as follows: Page 3, lines 53 and 54, claim 8, strike out the wor s normally energized, and line 55, after the word means, first occurrence, insert the words nomwlly tie-energized; and that. the said Letters Patent should be read with these corrections therein that the same ma conform to the record of the case in the Patent Ofiioe.

igned and sealed this 14th day of December, A. D. 1926.

[emu] M. J. MOORE,

Actmg Commissioner of Patents.