US665133A - Electrical valve-controller. - Google Patents

Description

"No. 665,!33. Patented Jan. I, 190i.

CLB. RIGGS.

ELECTRICAL VALVE CONTROLLER. (Application filed Feb. 5, x900. (No Model.) 3 SheetsSheet Witmeoow vewboz a4 a a I 3% Qttozwz CO 13 W t i L THE Mmms PEYERS co.. PHuToumu, wasnmm'bN, n. c.

No. 665,!33. Patented Jan. I, IBM.

0. B. RIGGS.

ELECTRICAL VALVE CONTROLLER.

(Application filed Feb. 5, 1900. (No Model.) '3 Sheets-Shoat 2.

avwewtoz a i 6/ QHOZMM MW Patented Ian. I, [90L C. B. RIGGS.

- ELECTRICAL VALVE CONTROLLER,

(Appliution filed Feb. 6, 1900.;

3 Shouts-Sheet 3.

(No Model.)

UNITED STATES PATENT CFFICE.

CLARENCE B. RIGGS, OF NE\V ROCHELLE, NEWV YORK.

ELECTRICAL VALVE-CONTROLLER.

SPECIFICATION forming part of Letters Patent No. 665,133, dated January 1, 1901.

Application filed February 5, 1900. e 0 4,135. (No model- To aZZ ilk/tom it may concern.-

Be it known that I, CLARENCE B. RIGGS, a citizen of the United States, residing in the town of New Rochelle, in the county of Westchester and State of New York, have invented a certain new and usefullmprovement in Electrical Valve-Controllers, of which the following is a specification.

My presentinvention relates to an improved apparatus for the control of gas, water, and steam valves and the like at a distance, and comprises a simple and economically-operated means whereby any number of valves may be singly or simultaneously opened or closed wholly or to such an extent as desired, said means being so constructed that the operator is informed at all times exactly where each valve in the system stands and in which direction it is being moved at any time.

The preferred form of my invention is illustrated with examples of modifications in the accompanying drawings, wherein Figure 1 shows in perspective the valvemoving parts of myinvention as applied to a water or gas pipe system and in diagram the electric connections between the same and the controlling-box at the operators station. Fig. 2 is an interior plan view of my preferred form of controlling-box. Fig. 3 is a central longitudinal section of the box shown in Fig. 2. Fig. 4c is a detail view of a modified form of my invention, wherein the automatic re lease is operated mechanically instead of magnetically; and Fig. 5 shows in diagram the application of a relay system to the purposes of my invention.

My invention, broadly considered, covers the use of a valve or valves operated by electric motors, a central device for closing the circuit of said motors so as to operate them in one direction or the other, a central means for opening the circuit so closed, and electric circuits controlled by contact-makers at the valves, whereby the main circuitopening means may be operated.

In its best form this invention includes an indicator moving with the main-circuit-opening means and adjustable so as to open said main circuit at any point of time desired.

The accompanying drawings illustrate one preferred embodiment of the invention above broadly outlined, wherein a controlling-box 1 carries the indicating-pointer 2 over itscover 3, said cover being preferably made of insulating material, so as to electrically separate theconcentric metal rings 4 and 5, carried upon said cover and provided with holes at intervals fora purpose hereinafter described. The cover carries appropriate terminals or binding-posts 6, 7, S, 9, 10, and 11, projecting into the box, where they make contact with the springs l2, 13, 14, 15, 16, and 17, attached to the bottom of thebox 1.

In that form of my invention wherein the main current which drives the valve-moving motor is directly controlled at the central box and passes through said box there are provided two three-knife switches 18 and 19 or equivalent means for properly making and breaking the main circuit and directing the current through the motor elements, as also to control the automatic releasing means. These three-knife switches are capable of being pressed down toward the bottom of the box by means of thebuttons 20 and 21,'which project through the cover of the box, but are held normally open by means ofpropersprings 22 and 23. In Fig. 2 theswitch 18 is shown open andswitch 19 is shown closed or depressed. Each switch comprises three separate blades or knives (t b 0, connected by an insulating-bar d, which latter carries a lip orprojection 24 25, adapted to cooperate withcorresponding latches 26 27 to hold the switch closed when depressed manually. These latches act either by gravity or in any other well-known manner.

At 28 and 29 are shown two electromagnets, whose respective poles are brought together opposite thelatches 26 and 27, which latter act as armatures, being attracted at the proper time to open one or theother switch 18 or 19.

The indicating-pointer 2 is carried upon arevoluble arbor 30, which also carries two pinions, having teeth oppositely turned, as shown at 31 and 32 in Figs. 2 and 3. This construction is made clear by the breaking away of a portion ofwheel 32 in Fig. 2 to show the teeth on thewheel 31 beneath it. Opposite to thewheel 31 and in the same plane is placed the lever 33, pivoted at 34 and adapted to swing against the periphery of saidwheel 31 to move the same one tooth forward whenever said lever is swung upward. Upon the the motor for opening the valve, and as the other side of the arbor and in the same plane with thewheel 32 is asimilar lever 35, pivoted, as at 36, and acting when swung upward to give towheel 32 the opposite movement to that imparted by the lever 33. The twowheels 31 and 32 being fixed to a common arbor move together, and consequently only onelever 33 or 35 can operate at once. The two levers are provided with adjustable screw-stops 37, 38, 39, and to properly limit the back-and-forth movements of the levers and 35. The normal position of each of these levers is away from its wheel, it being carried to this position by means of gravity, the springs 41 42, or by equivalent means.

At 43 and 44 are shown two 1nagnets,whose respective poles are brought together opposite saidlevers 33 and 35, said levers acting as armatures to be attracted toward said poles when the magnets are energized for a purpose disclosed hereinafter.

The various parts herein described are connected by wires for operation in a manner described later, it being sufficient for the present to state that the inner andouter rings 4 and 5 (shown in dotted linesin Fig. 2) are respectively connected to proper wires at 45 and 46. Metal pins orpegs 47 and 48 are adapted to be adjusted into any desired holes in the rings. (See Fig. 3.)

The main driving motor at each valve (shown at 49) comprises the usual field-magnet 50 andarmature 51, the latter acting to drive aworm 52, which meshes with the worm-wheel 53 on the usual screw-shaft of the valve to be opened or closed. On the top of the gear-wheel 53 are a number of pins, as five, projecting upward, as at 54, and adapted to make contact with ametallic brush 55, attached to but insulated from the side of the motor or otherwise appropriately supported. The two terminals of any convenient source of electricity, as thebattery 56, are connected, respectively, to thebrush 55 and the beaterminal 6. The brushes of the driving-motor are shown at 57 and 58. The terminals of the main driving-circuit for the motor are shown at 59 and 60.

The operation of the specific device so far described is as follows: Supposing the valve to be entirely closed and that it be desired to partly open the same, before operation bothswitches 18 and 19 would be open and themotor 49 would stand still. Now if one of the switches, as 18, be closed by pressing the button 20 a circuit will be established as follows: The current entering at 59, followingwire 61 toterminal 11 and spring 17, would cross knife 1) ofswitch 18, thence tospring 14 andterminal 8, and bywire 32 through thearmature 51 from brush 57 to 58. Returning bywire 63,terminal 9, andspring 15, it would cross knife CL ofswitch 18, thus reachingspring 16,terminal 10,wire 64, and thus through the field-magnet 50 and out to the main line at (30. This circuit would drivewheel 53 revolved the pins 54 would come successively into contact with theinsulated brush 55. Each time this contact occurredmagnet 44 would be energized by the following circuit: beginning atbattery 56 and bywire 65 to brush 55, to a pin 54, and thence to thepipe 66 andwire 67 or ground to terminal 7 at the central box. From terminal 7 the current would pass tospring 13, across knife 0 ofswitch 18, throughmagnet 44, back tospring 12 andterminal 6, and thence back to battery bywire 68. Each time the magnet 44- is energized it attracts thelever 35, the end of which strikes a tooth of thewheel 32, causing the indicating finger orpointer 2 to follow the movement of the distant wheel by a movement of one tooth for each energizing of themagnet 44, since each time the circuit throughbattery 56 is broken the lever falls away and clears thewheel 32. This movement of the valve-wheel 53 may be continued to any point desired and may be stopped at any point at will by inserting themetallic pin 47 into the proper perforation or hole in theouter ring 5. As shown by the dotted continuation of thepointer 2 in Fig. 2, this pin will lie in the path of movement of said pointer, and supposing the above operation to have taken place and to continue until thepointer 2 comes into contact with thepin 47 the following circuit will be set up on occurrence of this contact: from knife I) ofswitch 18 bywire 69 to connection 46 withouter ring 5 and from this ring and its insertedpin 47 topointer 2 andwire 70 throughmagnet 28 andwire 71 to knife a ofswitch 18. The first description of the main circuit made it clear that knives Ct and b ofswitch 18 were on opposite sides of the motor-armature, and therefore the circuit just described would be in shunt with the armature and would possess suflicient voltage to energize themagnet 28, thus attracting thelatch 26 and permit-- ting the spring 22 to throw open theswitch 18 and stop the motor. It is obvious that the circuit needed for this last-named purpose need not necessarily be supplied from a shunt directly around the armature, but may be supplied from any desired source either connected with the main circuits or not.

It will be clear that the position of thepointer 2 can always be made to indicate clearly the condition of the valves controlled by the box to which it is attached, and the cooperation of the stopping, starting, and indicating means is of such a positive character that there is no opportunity for mistake in this particular.

Inspection of the drawings will make it clear that whenit is desired to close the valve again in whole or in part thebutton 21 should be depressed, whereupon themotor 49 will start in the opposite direction, since under these conditions while the field-n'lagnet current will remain constant in direction the armature-circuit will be reversed. Themagnet 43 will act upon the lever 33 to operate theindicator in a corresponding direction, and themagnet 29 will act to open the driving-circuit at any point desired when theindicator 2 comes into contact with thepin 48, properly placed upon the inner ring l.

It is to be understood that the mechanism and circuits so far described are capable of indefinite modification and adaptation of its parts to multiple circuits in a well-known manner. Many equivalents for various parts in this device may be substituted in a well known way without departing from the spirit of the present invention.

In order to illustrate by a mere example the flexibility of my improved system, lhave shown in Fig. 4 how my indicator may be made to act mechanically instead of throughmagnets 2b and 29 to open the main circuits and stop the driving-motors at the proper time. In this modification of my invention thelatches 26 and 27 lie in the path of movement of theindicator 2, which is preferably geared to less than a whole revolution for the entire throw of the valve-gate desired. It is evident that with this form as soon as the moving indicator reaches the proper point one or the other of thelatches 26 27 is drawn away from engagement with its cooperating lip and the corresponding switch is thrown open. While this form does not lend itself to as ready and complete adjustment for different movements of the valve, it is nevertheless useful in many cases as a substitute for the form shown in Fig. 2.

In Fig. 5 I have shown a modification of my system particularly adapted to the operation of valves at a considerable distance from the controlling-box-as would be used, for instance, in water-supply systems for towns. This system depends upon the con trol of the main driving-circuit by means of a distant switch 72, actuated by a comparatively light current, the main drivingcurrent for the motor not being carried into the controlling-box. A number of means might be devised for this purpose, and in Fig. 5 l have shown, as an example, an insulating-disk 72, carryingmetal strips 73 and 74 on its circumference, separated byinsulating-pieces 75 and 76. The disk 72 is pivoted and may be turned in one or the other direction from the position shown by means of the two solenoid-cores 77 and 78, adapted to be moved by thesolenoids 79 and 80. Four brushes 81, 82, 83, and 84 bear upon the outer parts, supported by the disk 72. Of these, 81 and 8e are connected to the two sides of the main circuit and bear constantly each on itsown metal strip 73 and 7-1. When the motor stands still, its fieldmagnet is in circuit with the main line, as shown, but thebrushes 82 and 83, connected to the armature-brushes, bear upon the insulating-pieces 75 and 76.

By an obvious modification of the connections shown in Fig. 2 the switches controlled by thebuttons 20 and 21, respectively, close circuits which energize thesolenoids 79 and 80, and thus the disk is turned in one direction or the other. Inspection will show that this sets up current in one direction or the other through thearmature 51, with the desired result upon the valve. Thewires 67 and 68 are shown cut off in this figure, as they cooperate with apparatus exactly like that shown in Fig. l and within the box in Fig. 2 for opening one or the other switch in said box at the proper time, and thus permitting thespring 85 or 86 to return the switch to the open-circuit position shown in the drawings.

My present invention is applicable to many situations and for governing all sorts of valves, and I do not wish to limit myself to the operation of valves of the class herein de scribed.

What I claim is l. A valve, an electric motor for moving the same, a central device for closing the circuit of said motor, a second central device for opening said circuit, electromagnetic means for actuating said circuit-opening device, electric circuits for said electromagnetic means and contact-makers moving with the valve for controlling said circuits for automatically stopping the valve-motor.

2 A valve, an electric motor therefor, a driving-circuit and switch for said motor, a magnet for opening said switch, an indicator, driving means therefor controlled by movement of said valve and an adjustable circuitcloser for said magnet adapted to operate at one or another position of said indicator at will.

3. A valve, an electric motor therefor, driving-circuits and two switches for control of saidmotor 1" or opposite directions of rotation, a tripping means for opening one or the other switch according to the direction of movement, oppositely-acting pawls for impelling said tripping means, an electromagnet for moving each of said pawls, circuits for said magnets and contact-makers moving with said valve for producing intermittent excitement of said magnets.

at. A valve, a worm-gear for operating the same, an electric motor and worm for driving said gear, pins on said gear, a brush making contact with said pins successively, a switch controlling the electric motor, electromagnetic means for opening said switch and a circuit for operating said electromagnetic means including said pins and brush.

5. A valve, electric valve-operating means and a main circuit therefor; in combination with a central box bearing a pointer, electromagnetic mechanism for opening said main circuit, a perforated metal ring adjacent to said indicator in circuit with said electromagnetic mechanism, mechanism controlled by movement of said valve for moving said indicator and an adjustable pin fitting into JEO the holes in said ring and adapted to close the circuit of said electromagnetic mechanism through said ring and pointer.

6. In an electric valve-operating device, a central controlling mechanism and an exterior valve and electric motor therefor; said controlling mechanism comprising a progressive indicator device, two three-knife switches and two electromagnets for driving said indicator device in one or the other direction, one blade of each of said switches being in circuit with its corresponding magnet.

7. In an electric valve-0perating device, a central controlling mechanism and an exterior valve and electric motor therefor; said CLARENCE B. RIGGS.

Witnesses:

HAROLD S. MAOKAYE, BENJAMIN A. GOULD.

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