US1234096A - Valve. - Google Patents

Description

H. Cf FARRELL.

VALVE. y APPLICATION FILED APR-16. 1915 r; 49H96, Patented July 17, 1917.

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60 f Z5 Z /5 (j 9 I 9 2.9 4. /4 Z8 l '75 13 T Z0Y a ZZ Z Z6 z/ 76 0 j W? Z4 70 unir 1 HENRY C. FARRELL, OF BUFFALO, NEW YORK, ASSIGNOR OF ONE-HALF T0 LESLIE J'. BENNETT, OF BUFFALO, NEW YORK.

VALVE.

Application led April 16, 1915.

To all whom t may concern:

Be it known that I, HENRY C. FARRELL, a citizen of the United States, residing `at Buffalo, in the county of Erie and State of New York, have invented new and useful Improvements in Valves, of which the following is a specification.

rlhis invention relates to a valve and more particularly vto an automatic closing valve having a spring whereby the stopper when free is yieldingly held inl its closed position.

The objects of this invention are to provide a valve of this character which can be produced at comparatively low cost, which is reliable in its operation, which is readily accessible for inspection, adjustment or repairs, which is not liable to be opened slightly and caused to leak by the pressure of the fluid which is being controlled, and in which a leak tight joint is insured between the stopper and its seat.

In the accompanying drawings:

Figure 1 is a vertical longitudinal section of a valve embodying my improvements. Fig. 2 is a horizontal section of the same taken in line 2-2, Fig. 1. Fig. 3 is a side elevation, partly in section, of the stopper mounting. Fig. 4 is an enlarged sectional view of the valve seat and the valve stopper engaging therewith.

Similar characters of reference indicate corresponding parts throughout the several views.

1 represents the body or casing of the valve having an inlet nozzle 2, an outlet nozzle 3, a seat 4 provided with a port 5 and a tubular neck 6 which projects perpendicularly or laterally from the body on the discharge side of the seat and has its aXis in line with the port 5.

On the outlet side of the seat the same is preferably constructed in the form of two annular ribs orridges 8 arranged concentrically around the port 5.

The stopper of the valve comprises a cushion disk of fiber or similar material which engages with the inner end of the valve stem 7 a cup-shaped facing 8a of soft metal such as copper which receives the cushion on the front side thereof, and a screw 80 connecting the central parts of the facing and cushion with the valve stem.

As the valve stem is moved toward the valve seat the valve facing engages with the seat ribs so that the facing and cushion Specicaton of Letters Patent.

Patented July 17, 191% serial no. 21,654.

9 represents the bonnet of the valve which is connected by a screw joint 10 with the outer end of the neck 6 and provided cen trally with an axial bore or cylindrical opening 11 which receives the intermediate part of the valve stem 7. Leakage between this valve stem and the bonnet is prevented by means of a packingdevice consisting` preferably of a packing ring 12 arranged in a counter bore at the inner end of the bonnet around the valve stem and a gland 13 screwed into the inner end of the bonnet around the valve stem and against the packing ring 12, as shown in Fig. 1.

Means are provided whereby upon turning the valve stem about its axis the same will be `caused to move lengthwise in the bonnet for'moving the valve stopper 60, 8a toward and from the seat around the port 5 for closing and opening the latter. The means for this purpose comprises a transverse pin 14 secured in the outer part of the valve stem and having its opposite ends projecting laterally therefrom so as to form lugs which enter cam-shaped or inclined slots 15 formed on opposite sides of a reduced outer part or flange 16 of the bonnet. These cam slots are so constructed that upon turning the valve stem in one direction the opposite ends of its cam pin 14- will be caused to ride up on the cam-shaped surfaces of the slots 15 and raise the valve stopper from its seat while upon turning the valve stem in the opposite direction the ends of the cam pin will ride down the inclined or cam surfaces of the slots 15 and move the valve stopper against its seat.

The rotation of the valve stein for opening the valve stopper is preferably effected manually by means of a handle 17 having a hub 18 provided on its underside with a socket 19 which lits over the outer reduced part 16 of the bonnet and is provided in its outer end with a rectangular or flat sided opening 20, preferably square, which receives the correspondingly shaped outer part or end 21 of the valve stem. This handle and the valve stem may be detachably con- Vwhich is secured to the inner part of the Upon turning the handle 17inA nected in any suitable manner, for instance, by means of a screw 22 entering the outer end of the rvalve stem and engaging its head with the outer side of the handle hub, as

' shown in Fig. 1.

valve stem. a direction for causing the cam pin 14 to rise with the valve stem and stopper, the

innerend ofthe spring 23 will be pushed backwardly or uncoiled', thereby straining the same and causing the resilience of this springV upon releasing. the handle 17 to re-v verse the rotation of the valve stem and turn 1t in a directionrwhich will cause the cam Y pin 14. to ride downwardly on the inclined ends in oblique' surfaces of Valve.

Byy mounting ythe cam slots 15 and close the the spring 23 at its opposite sockets on the bonnet and valve stem its resistance to expansion or uncoiling is utilized as a means for automatil cally closingl the valve, thereby materially simplifying the construction over a valve in kwhich a spring is wound up or tightened Afor obtaining the required resilience which closes the valve. This is particularly advantageous in the present valve owing to the small amount of roomwhich is available and 'which would renderA prohibitive. any construction which is complicated or` which necessitates considerable room.

In order to prevent the pressure of the fluid which is being controlled from lifting the valve stopper from its seat and causing leakagek the innermost or lowerinost parts of thecam slots 15 on the bonnet are made circumferentially relative to the axis of the valve stem and bonnet, as shown at 27 in Uopies of` this patentmay be obtained for five cents each,v

Fig. 8. By this means the opposite ends of the pin 14- upon engaging the outer horizontal faces 27 o-f the cam slots will lock the valve stopper against its seat and prevent any pressure against the underside of the valve stopper from lifting or moving the saine oft' its seat inasmuch as this pressure is at right angles to the locking faces 27 of the bonnet which are engaged by opposite ends of the cani pin 14.

F or convenience in cleaning out the body or casing of the valve on the inlet side of its Y partition or diaphragm a clean out opening 28 is provided in thc valve casing adjacent to the port 5 which clean out opening is preferably closed by means of a plug 29,.:15 shown in Fig. 1.

My improved valve is not only and inexpensive in construction taken apart for inspection, adjustment and repairs7 but the same is also very compact and neat in appearance.

I claim as my invention:

A valve comprising a body or casing having an inlet nozzle7 an outlet nozzle, a valve seat arranged between said inlet and outlet nozzles, and a tubular neck arranged on the outlet side of the valve seat, a bonnet secured to the other end of said neck and provided with a central opening, an inclined slot at the outer end of the bonnet and an oblique socket at the inner end of the bonnet, a valve stem arranged within the body and bonnet and provided at its inner end with a stopper adapted to engage said seat and also with an oblique socket at a point outward of said stopper, a spring surrounding the valve stem within the body and having its opposite ends engaging with the oblique sockets of the bonnet and the valve stein, a pin arranged in the outer part of the valve stem and engaging in the inclined slot of the bonnet, a handle secured to the outer end of the valve stem and comprising a cap which incloses the outer slotted end of the bonnet, and a packing arranged on the inner end of the bonnet around the valve stem.

' HENRY C. FARRELL.

simple and easily by addressing the Commissioner of Patents,

Washington, D. C. Y

Correction in Letters Patent No. 1,234,09t

It is hereby oertied that in Letters Patent No. 1,234,096, granted July 17, 1917, upon the application of Henry C. Farrell, of Buialo, New York, for an irnprovernent 'in Valves, an error appears in the printed specification requiring correction as follows: Page 2, line 78,01ai1n, for the Word other" read outer;

and that the said Letters Patent should be read With this correction therein that I the same may conform to the record of the oase in the Patent Ofice.

Signed and sealed this 14th day of August, A. D., 1917.

[SEAL] R. F. WHrTEHEAD,

Act/ing Commissioner of Patents. Cl. 137-11-

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