US1227607A - Metric valve. - Google Patents

Description

H. R. GILSON.

METHIC VALVE.

APPLICATION f lLED Aue.3|. 1914.

Patented May 29, 1917.

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FFIFE.

HLENRY R. GILSON, 0F BADEN', PMNSYIAVANI.

i METEIC VALVE.

Specification of Letters Patent.

Patented May 29, 191'?.

Application filed August 31, 1914. Serial Ito. $59,449.

To all 'whom t may concern.'

Be it known that I, HENRY R. GILsoN, residing ,at' Baden, in the county of Beaver and State of Pennsylvania, a citizen of the United States, have invented or discovered certain new and useful Improvements in Metric Valves, of which improvement the following is a specification. A

My invention relates to metric valves, and the object thereof is, in addition to improving the general construction, operation and efliciency ofsuch valves, to provide a durable and practical valve that may be set in operation with minimum effort.

In the accompanying sheety of drawings, forming part of.my specification, I have illustrated one embodiment of my invention. Figure 1 is a sectional view' taken `on the lineI--I, Fig. 2; Fig. 2 a sectional view taken on the line II-II, Fig. 1; Fig. 3 a sectional View taken on the line III-III, Fig. 2; and: Fig. 4 a detached detail view showing the arrangement of gears. The relative positions of the se'veral elements constituting the complete valve structure are the same in Figs. 1, 2 and 4, while in Fig. 3 a different position is shown in full lines and still another position in dotted lines, as will be explained hereinafter.

Like numerals are used to designate like parts in the several figures.

While my invention may be employed in metric valves adapted to be used for various specic purposes,`it is particularly applicable to valves for supplying a predetermined quantity of water for flushing water closets. It is desirable in metric valves for this purpose that, commensurate with structural durability and efliciency, they be compact in' form; that there shall be no uncertainty of their action; that their operation be easily effected; that they cannot be held open to waste water; and that, without requiring eX- ternal adjustment, the same amount of water will be delivered during each operation regardless of the supply pressure. Furthermore, when used with siphon closet structures it is desirable, in order to prevent the siphon action of the closet from drawing too much water from the bowl, to so construct the valve as to retard or diminish the final flow of water to the bowl. Finally, it is desirable that there be no hammeringaction as the valve closes. It is toward these features of metric valve construction that my invention is primarily directed.

Referring to the drawing, the valve structure and operating mechanism is mounted in a casing 1, preferably made of cast brass, and having a lateral inlet 2 and an outlet 3. The inlet leads to an inlet chamber 4 which is separated from an outlet chamber 5 by a partition 6 having a valve orifice 7 through it. The valve for closing the orifice 7 may be of any desired or well known type, but preferably comprises a closure or valve 8, having a laterally projecting portion, provided with a gasket 9 which bears upon the annular upturned edge of the orifice wall, as shown particularly in Fig. 2. To the end that the valve 8 may be easily accessible for repair, the portion of the inlet chamber is provided with an opening 10, adapted to be closed by a removable plug 11, through which opening the `valve 8 may be removed after the fluid supply has been shut off at a point beyond the inlet 2.

In operating the valve to permit a predetermined quantity of water to flow through the orifice 7, means are provided to effect an initial unseating of the valve closure, the pressure and velocity of the water flowing through .the partly opened valve being then effective to cause the operating mechanism to further unseat the closure and to subsequently seat it. And, to the end that the initial opening of the valve may be accom plished with a minimum effort on the part of the operator, the valve closure is prefer ably tilted or raised only at one side, rather than being raised bodily against the fluid pressure in the inlet chamber.

For the purpose of thus operating the valve, any suitable mechanism may be employed. In the illustrative embodiment of my invention the valve closure 8 is provided with a depending stem 12 having at its lower end-a slot opening 13 adapted to receive a pin 14 secured eccentrically to a rotatable pinion 15. In the lowermostposition of this pin, as indicated in Figs. 1 and 2, the valve is closed, while in Fig. 2` the valve is tilted, the pinion 15 having been turned casing formingithe through a small angle in a right handed diwhich it was opened, the stem 12 being provided with radially extending ribs 16 to properly guide the valve to its seat.

The means for effectin the initial unseating of the valve may ge best explained after having described lthe mechanism for effecting the further rotation of the pinion 15. rihe fluid, or a portion of it, after it passes through the orifice acts upon a fluid motor, preferably in the form of a paddle wheel 18, secured to a rotatable shaft 19, and having blades 17. As seen particularly `in Fig. 4, the shaft 19 is provided with a small pinion 20, which meshes With a pinion 21 secured to a rotatable shaft 22. The shaft 22 is in turn provided with a pinion 23 meshing with a pinion 24 rotatably mounted upon a shaft 25; and to the pinion 24 there is secured a pinion 26, which meshes with pinion 15 and is also rotatable upon the shaft 25. ByV properly proportioning the size of the several pinions, the number of revolutions of the fluid motor 18 required to effect asingle rotation of the pinion 15 may be varied so as to permit any desired quantity of fluid to pass through the valve during one cycle of its operation.

The initial opening of the valve by a partial turning of the pinion 15 is preferably effected by means of a hand lever 27 -secured to the shaft 25, to which there is also -secured an arm 28 having a pawl 29 at its outer end in such position as to engage,

.i when the lever. is turned in one direction,

a tooth of a ratchet wheel 30securedto the inion 24 and rotatable upon the shaft 25. The lever 27 is held in the position indicated in full lines in Fig. 3 by means of a spring 31, the opposite ends of which engage the casing 1 and the shaft 25, to vwhich the lever is secured. By moving the lever through an arc of about 90 the valve 8 and the stem 12 will be brought to the positions indicated in Fig. 3, and, because of the positive connection between the the -mtor shaft 19, it will e understood that the movement of the lever 27 will also rotate the Huid motor. By such an arrangement the rotation of the motor will have K been started before fluid, passing through the partially opened valve, impinges upon its blades, thus eliminating all uncertainty of the operation of the valve. After the `initial opening of the valve the ratchet 30,

being secured to the pinion 24, continues to rotate with such pinion, the pawl 29 slipping over* the teeth of the ratchet. Since, in effecting the initial opening of the valve, the movement -of the lever is always in the Same direction as that of the 4rotation of the ratchet during the further opening and v closingof the valve, it follows that the valve cannot be held open to waste Water by holding the handle in any osition after the initial opemng of the 4va ve. ln other words, after the initial opening of the valve,its

inion '24 and i r 'I 1,227,607

further complete cycle of operation is entirely under the control of the fluid motor egardless' ofy the position of theioperating ever.

As stated heretofore, either all or a portion of the Huid passing through the valve may be directed upon the blades of the uid motor. However, to the end that the entire construction may be as compact as possible, `the casing is, by means of a removable partition 32, divided into two chambers, one

containing the motor and the other the train v of operating pinions. Fluid from the valve 4orifice passes through both chambers, thus rendering itl possible to reduce the motor to such proportions as are-necessary only to assure the operation of the valve, and without sacrificing the quantity rate of How through the valve. A further advantage in providing two compartments and in causing part of the water to flow through each of them is that the quantity of fluid l delivered by each operation of` the valve may be varied by increasing or diminishing .the area of an inlet or outlet passage of one of such chambers. For example, by decreasing the area ofthe outlet passage of the gear chamber a" greater proportion of the fluid will pass through the paddle wheel chamber, With the result that asmaller quantity of fluid will be delivered at each operation of the valve. Adjacent to the motor the casing 1 is provided with a removable closure 33 for the purpose of assembling the operating mechanism and to gain convenient access thereto.

In the operation of the valve construction, the hand lever 27 is moved from its full to its dotted line position, as shown in Fig. 3, and, through the'pawl 29 and ratchet 30,'causes the entire train of mechanism to move through a portion of its cycle of operation, thereby tilting the valve closure 8 to the position indicated in'full lines'in Fig. 3 and setting the paddle wheel 18 in rotation. The fluid, passing throughthe partially opened valve, causes a continued rotation of the paddle wheel and the consequent further opening and closing of the valve, the wide open position being indicated Ain dotted lines in'Fig. 3. When the valve is nearly It will be observed that the supply of Water is gradually, rather than suddenly, shut of. This has the double advantage of, first, preventinghammering, and secondly, when the valve is used for flushing Siphon closets the supply of wateris graduallydiminished. 13o

the advantage of which has already been explained. It will further beobserved that, with a relatively low supply pressure and consequent low velocity of entering water, the speed of rotation of the motor will be slower and the valve will be open longer than when a high pressure supply and therefore high velocity' discharge is used, the quantity of water delivered at each operation of the valve in both cases being substantially the same.

I claim as my invention:

1'. In a metric valve, the combination of a casing, a single valve therein for controlling flow therethrough, means for effecting an initial incomplete opening of said valve,

and mechanically operable means for effecting a further opening' and subsequent closl ing of said valve.

2. In a metric valve, 'the combination of a main valve, means for effecting an initial tilting thereof, and a mechanically operated means for effecting a further opening and subsequent closing of said valve.

3. In a metric valve, the combination of a main valve, manually operable meansv for `effecting an initial incomplete opening thereof, and mechanically operable means impelled by fluid passing through said valve for effecting a further opening and subsequent, closing thereof.

4. In a metric valve, the combination of a main valve comprising an orifice and a stem-provided closure seated thereon, a rotatable member operatively connected to said stem and adapted when passing through one revolution to positively open and close said valve, and means impelled by fluid -passing through the valve for continuously rotating said member. A

5. In a metric valve, the combination vof a main valve comprising an orifice and a closure seated thereon, said closure having a stem secured to it, a rotatable member operatively connected to said stem and adapted when passing through one revolution to open and close said valve, manually operable means for effecting an initial rotation of said member, and iuid-impelled means for effecting a further complete rotationl of said member.

6. Ina metric valve, the combination of a main valve comprising an orifice and a closure therefor, a paddle wheel adapted to be rotated by fluid passing through the orilice, means coordinated with said wheel to open and close said closure, and means for effecting an initial opening of said closure and rotation of said wheel.

7. In a metric valve, the combination of a main valve comprising an orifice and a closure therefor, said closure having a stem secured to it, a rotatable member operatively connected to said stem and adapted when passing through one revolutionY to open and close said valve, a paddle wheel adapted to be rotated by fluid passing through said orifice, means cordinated with said wheel for rotating said member, and means for. effecting an initial rotation of said member and of said paddle wheel.

8. In a metric valve, the combination of a casing divided into inlet and outlet chambers, the outlet chamber being divided into compartments for a fluid motor and for valve operating mechanism, and a valve controlling communication between the inlet and outlet chambers, the fluid assing through said Valve flowing partly t rough each of said compartments.

9. In a metric Valve, the combination of a main valve comprising an orifice and a closure seated thereon, saidV closure having a stem secured to it, va rotatable member operably connected to said stem and adapted uponv its rotation to open and closer said valve, manually operable means for effecting an initial rotation of said member, and fluid-impelled means for e'ecting a further complete rotation of said member.

10. In a metric valve, the combination of V nated means for e'ecting an initial opening of said closure.

In testimony whereof I have hereunto set myhand.

HENRY R. GILSUN.

Witnesses:

ALICE A. TRILL, FRANCES J. TOMASSON.

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