US707938A - Electrically-operated valve-gate. - Google Patents

Description

in. 707,938. Patented Aug. 26, I902. A. 0BR.

ELEGTBICALLY OPERATED VALVE GATE.

(A pp lication filed Apr. 21, 1002.)

(No Model.)

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ALEXANDER ORR, OF GLOVERSVILLE, NEW YORK.

ELECTRlCALLY OPERATED VALVE-GATE.

SPECIFICATION forming part of Letters Patent No. 707,938, dated August 26, 1902. Application filed April 21, 1902. Serial No. 103,909. (No model.)

To all whom it may concern:

Be it known that LALEXANDER ORR, a citizen of the United States, residing at Gloversville, in the county of Fulton and State of New York, have invented a new and Improved Electrically-Operated Valve-Gate, of which the following is a full, clear, and exact description.

My invention relates to electrically-operated valve-gates, and more particularly to an appliance used for opening and closing the so-called auxiliary valve generally used in connection with a large main valve.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a front elevation showing my device applied to an auxiliary valve. Fig. 2 is a side elevation ofthe same. Fig. 3 is a fragmentary plan View, somewhat enlarged, showing part of the means for releasing the motor mechanism controlling the valve. Fig. 4 is a fragmentary side elevation, somewhat enlarged, showing a part of the mechanism for disengaging the motor mechanism.

To the valve-casing 1, containing the auxiliary valve, are secured the usual hydraulic pipes 2, 3, 4, 5 and'6 for operating the main valve. The valve-stem is shown at 7and is actuated by the connecting-rod formed of the members 8 9, which are provided with a turnbuckle 10 for the purpose of adjusting the valve. An eccentric llis mounted upon the shaft '12 for the purpose of operating the valve-stem. Gear-wheels 13 14 are connected together and are also connected with the drum 15. This drum is provided with a pawl 16 and a ratchet 17 of ordinary'construction and is driven by a weighted cord 18. A cam is provided at 19 and a revoluble arm at 20. A magnet 21 is provided with an armature 22, thisarmature being mounted upon the beam 23 and normally held in the position indicated by the adjustable spring 24. The screw 26 is for the purpose of adjusting the play of the armature. A lever 27 is provided with a boss 28 and is pivotally mounted at 29. The outer end of this lever is provided with a boss 30, which extends through the lever and is provided with a prismatic portion 36, disposed adjacent to the end of the beam 23. A leaf-spring 31 is mounted upon the beam 23 and is provided with an angular head 33, as indicated more particularly in Fig. 4. A prismatic boss 35 is rigidly secured upon-the beam 23, Whereas the prismatic boss 36 is connected with the beam 27 as above stated. The relation of these parts'is shown more particularly in Fig. 4. The cam 19, the revoluble arm 20, the gearwheel 14, and the drum 15 are all mounted rigidly upon the shaft 37. Upon the shaft 29 is mounted a movable arm 38, which, taken together with the member 27, constitutes a substantially L-shaped lever free to rock upon the shaft 29. All of the parts are preferably mounted upon a board 40. The spring 39 retractsthe beam 27. An electrical pushbutton 41 is connected with an electrode 42, from which a wire 43 leads to the magnet 21. From this magnet a wire 44leads back to the electrode 45, this electrode being connected by means of the wire 46 with the battery47. Another electrode 48 is by means of the wire 49 connected with the bell 50, which is likewise connected with battery 47, as is indicated in Fig. 1. From the electrodes and 48 the wires 51 52 lead to the respective spring-contacts 53 54. When the shaft 12 is rotated, the bosses 5-5 56, mounted upon the revoluble head 57 on the shaft12, by lifting the spring 53 cause the contacts to be momentarily closed.

The operation of my device is as follows: The drum 15 is wound up in any preferred manner. If desired, a key may be inserted through the sleeve 58 (see Fig. 1) for this purpose. The drum being wound, the weighted cord 18 causes the drum to rotate, thereby operating the gear-wheels 13 14 and the eccentric 11. This causes the valve-stem 7 to reciprocate. The gear-wheels 13 14 are so proportioned that one revolution of the wheel 13 is equivalent to two revolutions of the wheel 14, so that one complete revolution of the shaft 37 causes the valve-stein 7 to move simply the length of the valve-casing represented by the stroke of the eccentric 11. The revoluble arm 20 restrains the motor mechanism, consisting of the revoluble drum and its gearing, thereby preventing the same from running down. The motor mechanism can only be actuated for a moment at a time and that moment occurs when the revoluble arm 20 is momentarily freed. When the button 41 is pressed by the operative,the circuit from the battery is completed through the contacts 42 45, and the magnet 21, thus energizing the magnet and causing the armature 22 to be attracted thereby. The armature moves toward the magnet and carries the boss 36 slightly downward,disengagiug the same from the boss 35. The spring 39 thereupon draws the beam 27 toward the magnet, causing the arm 38 to swing toward the shaft 37that is to say, the beam 27 being released and drawn by the spring 39, causes the arm 38 to rock, together with the shaft 29. The beam 27 when thus moved upward carries with it the boss 28 and releases the upper end of the revoluble arm 20, which being thus disengaged moves outward from the board 40 and makes a revolution. As the arm 20 is rigidly mounted upon theshaft 37,this shaft likewise makes one complete revolution. The cam 19, which is mounted upon the shaft and which of course revolves therewith, is brought into contact with the arm 38, which is pushed back into its original position, thus rocking the shaft 29 and drawing the beam 27 into the position indicated in Fig. 2. The boss 28 is thus brought back into the path of the upper or free end of the revoluble arm 20, so that when this arm reachesthe position indicated in Fig. 2 it meets with the obstruction caused by the boss 28 and comes to a stop, thereby preventing any further motion of the motor mechanism. The revolution of the shaft 12 by raising the spring 53 by means of the bosses 55 56 closes the contact between this spring and spring54, thereby completing the circuit from the battery 47 through the bell 50 and apprising the operative that the shaft 12 is revolving. By this arrangement the operative can determine after pressing the button whether the valve is working properly. One winding of the drum is suflicient to actuate the valve a considerable number of times. The general object is to enable an operative who has control of the push-button 4:1 to open and close the valve, which may be at a distance. Each time the button is pressed the valve-stem 7 moves the length of the casing. If the valve is open, a push of the button serves to close it, and vice versa, if the valve is closed, a push of the button serves to open it. \Vhen the cam 19 pushes the arm 38 into the position indicated in Fig. 2, so as to draw the beam 27 forward, the beveled surfaces of the bosses 35 36 enable the bosses to pass each other, and the beveled head 33 of the spring 31 allows the bosses to engage each other Without any great shock. The idea is to have the beam 27 snap into p0- sition somewhat after the manner of the spring-bolt of a look. It will be noted that if the button is pressed for too great a period of time, so that the arm 20 tends to make more than a single revolution, the angular head 33 is lodged in the path of the prismatic boss 36. When, therefore, the cam 19 pushes the arm 38 and the arm 27 moves downward or toward the free end of the beam 23, the prismatic boss 36 encounters the bevel of the angular head 33, raises the head slightly, moves past it, and lodges against its flat edge. When, however, the circuit is broken, the beam 23 moves slightly and allows the boss 36 to pass under the head 33 and lodge against the boss 35, where it remains until the button is pushed again.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. An electrically-operated valve-gate, comprising a valve-stem for operating a valve, motor mechanism for actuating said valvestem, said motor mechanism being provided with a revoluble arm, a lever provided with a boss for engaging said arm, thereby normally restraining said motor mechanism, and means controllable at will for actuating said lever, thus causing said boss to momentarily disengage said arm.

2. An electrically-operated valve-gate, comprising a valve-stem for operating a valve, motor mechanism for actuating said valvestem, said motor mechanism being provided with a revoluble arm and with a cam, a lever provided with a boss for normally engaging said arm for the purpose of restraining said motor mechanism, and also provided with a surface to be engaged by said cam, and means controllable at will for releasing said lever.

3. An electrically-operated valve-gate, comprising a valve-stem for operating a valve, motor mechanism for actuating said valvestem, said motor mechanism being provided with a revoluble arm and with a cam, a lever provided with a boss for normally engaging said arm, thus restraining said motor mechanism, and also provided with a surface to be engaged by said cam, an electromagnet, means for energizing the same, an armature for said magnet, and mechanism controllable by said armature for momentarily releasing said lever.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALEXANDER ORR.

Witnesses:

WILLIAM A. MCDONALD, MERTIE G. lIowELL.

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