US1850354A - Flushing valve - Google Patents

Description

Patented Mar. 22, 1932 UNETE S'TTES TET FFIE JESSE C. OWENS, OF LOS ANGELES, CALIFORNIA, ASSIGNOR TO OWENS MANUFACTURING CO. LTD., A CORPORATION OF CALIFORNIA FLUSHING VALVE Application filed June 18, 1930. Serial No. 461,943.

My invention relates to a flush valve and has for its principal object the provision of a relatively simple, practical and eiiicient valve that is especially designed for use in g flushing water closet bowls and the like.

The particular form of flush valve herein set forth is an improvement upon the valve forming a part of the tank flushing apparatus disclosed in my co-pending application for U. S. Letters Patent filed April 23, 1930, Serial No. 6,595.

Further objects of my invention are, to provide a flushing device of the character referred to having a plurality of cooperating valves that control the flow of flushing water to the bowl or other member to be flushed and likewise controlling the flow of water that refills the bowl, further, to provide a flush valve having relatively simple and positively acting means for regulating the closing action of the valve and further, to provide a flush valve that is constructed and packed so as to minimize the liability of leakage of water through the valve when the same is closed.

With the foregoing and other objects in view, my invention consists in certain novel features of construction and arrangement of parts that will hereinafter be more fully de scribed and claimed and illustrated in the accompanying drawings, in which:

Fig. 1 is a vertical section taken through the center of a flush valve constructed in accordance with my invention.

Fig. 2 is a horizontal section taken on the line 22 of Fig. 1.

Fig. 3 is an enlarged horizontal section taken on the line 33 of Fig. 1.

Fig. 4 is an enlarged elevational view of a sliding pin that controls the closing action of the flush valve.

Referring by numerals to the accompanying drawings which illustrate a practical embodiment of my invention 10 designates a vertically disposed hollow cylindrical shell that forms a housing for the main members of the valve and the lower end of this housing is suitably connected to a tube 11 that leads downwardly to the bowl or other member with which the flush valve is associated.

The upper end of housing 10 is closed by a screw cap 12 andconnected to the upper portion of the tubular housing is a short tubular member 18 that serves as a connection for the pipe that leads from the source of water supply, for instance, the city mains.

Formed integral with the housing 10 a short distance below the connection 13 is a partition 14 in the center of which is formed an opening 15 and arranged on top of said partition around the opening therein is a ring 16 of suitable material,such as composition, rubber or leather and which forms a seat for the main valve of the flushing device.

Arranged for sliding movement within the housing 10 above the partition 14 is a hollow cylindrical valve 17 provided on its underface with a depending circular rib 18 that normally bears on top of the valve seat 16.

Seated in the upper portion of the periphery of valve 17 is a packing ring 19 and formed through the center of the bottom of valve 17 is an opening 20.

Arranged on top of the bottom of valve 17 and surrounding the opening therein is a ring 21 of composition, rubber, leather or the like and which forms a seat for the secondary valve.

The outer face of the intermediate portion of the wall of valve l7v is cut away to form an annular chamber 22 and formed through the wall of the valve and establishing communication between this annular chamber and the chamber within valve 17 is a port 23.

Formed through the top of valve 17 is a centrally arranged opening 2a and arranged to slide freely therethrough is the tubular body 25 of the secondary valve.

Formed integral with the upper end of the body of this secondary valve is aring or flange 26, that functions as a piston and seated in the edge thereof is a packing ring 27.

Formed through the top of valve member 17, to the side of the opening 24, is port 28, that establishes communication between the chamber within the valve member 17 and the chamber between the head of said valve memher and piston 26.

Formed through the piston 26 to the side of the wall of valve body-25 is a vertically dis- I the opening in the lower end of tubular valve 25 is a circular rib 32 that forms a seat body posed port 29, that establishes communication between the chamber above piston 26 and the chamber between said piston and the upper end of valve 17. Arranged to slide free- 1y through this port 29 is a pin 30, in the periphery of which is formed a spirally dis-. posed groove 31 so that, as water under. pressure passes through the groove 21 it will tend torotate said pin. a Y 7 I Projecting inwardly and upwardly around for a valve body 33 and the latter being se- 7 pin 36. The lower portion of yoke passes arranged a packing gland 47. 4O

cured on the upper end ofastem 34 that projects downwardly through the opening 20 and'lformed integral with'the lower end of said stem and projecting downwardly through opening 15 in partition 14 is a yoke '35 seated in the lower portion of this yoke and 'spanning the opening therethrough is a through the opening 37 in a plate 38 that is fixed within the lower portion of housing 10 and said opening 37 being slightly wider than the. thickness of said yoke.

Formed fl inte ral with and projecting laterally from t e lower portion of housing 10 is a tubular member 40 and screw-seated on the outer end thereof is the inner end of a short, horizontally disposed tubular member 41 provided at its outer end with an inwardly projecting flange 42.

' Removably positioned wlthin tubular .member 41 and bearing against a shoulder 43therein is adisc 44, against the inner face of which is positioned a packing washer 45 and bearing against said packing washer is a disc 46, on the outer end of which is Extending axially through sliding movement therethrough, is a push rod 48, on the outer end of which is mounted a disc 49. Inte'rposed between the disc 44 and 49 is an expansive coil spring 50.

"Arranged between disc 49 and flange. 42

- isa disc 51 that is carried by the inner end of a handle 52 and which latter projects out- L wardly'from the outer end of tubular mom ber 41.

Carried by the inner end of push rod 48 l and arranged for sliding movement by the uide ribs53 that project inwardly toward each other from; the inner end of tubular 55 member-40 is a vertically disposed plate 54, in which is formeda slot 55, the same extend- 1 ing from the lower left-hand corner of said plate inwardly and upwardly toward the lliipper rightehand corner of said plate (see Under normal conditions, or while closed, the various parts of the valve occupy the positions as illustrated in Fig. 1, with the lower endof main valve 17 closed upon seat 16, with the lower end of secondary valve 25 closed on the discs 44, 4e; and the packing washer 45 and arranged forv tion and the pin 36 in yoke 35 occupies a transverse position in the lower forward end of slot 55, with disc 51 bearing against flange 42 and disc 49 hearing against disc 51. c

To open the flush valve to permit the flow of waterdownwardly into the bowl, handle 52 is manually engaged and swung in any direction and as a result of such action the tilting of disc 51 engages disc 49 and forces the latter and push rod 48 inwardly against the resistance offered by spring 50. Aspush rod 48 and plate 54 are moved inwardly, the pressure of the plate below slot 55 on pin 36 swings the lower portion of yoke 35 out of its normal vertical position and which swinging move rznent is limited by the width of an open-' ing 3 Y As a result of this tilting orcocking movement of yoke and stem 34, to which it is connected, valve 33 is tilted relative to its seat,

thereby'per'mitting an initial flow of water under pressure to pass through the opening controlled by valve 33, thereby relievingthe 7 normal pressure of the water above the valves 17 and 25. V V

The inlet pressure existing between the piston at the upper end of valve 17 and piston 26 forces the latter piston and valve 25 upwardly, thereby elevating the lower end of valve 25 from'its'se'at 21 and which action also moves seat 32 into engagement with valve 33 so as to cut ofiflow of water through the opening in the lower end of valve 25. Under such conditionsthepressure above and below the main valve '17 is substantially balanced and valve 17 will be lifted by'engagement of the shoulder at the upper end of yoke 35 with the underside of valve 17 adjacent to the opening 20 in the bottom thereof.

With main valve 17 thus open, flushing water will flow from supply connection 13 downwardly through housing 10 through opening 14 andthence downwardly through pipe 11 and that flushing continues until sufficient water has passed through groove 31 in pin 30 to build up pressure above piston 26 and force the same downwardly until the lower end of valve 25 rests upon its seat 21 and finally'valve 17 will close upon its seat 10.

Valve 33, after its initial opening movement to begin the flushing operation will remain closed and spring 50 functions to seat valves 25 and then the main valve 17; However, the closing movement of thevalves 25 and 17 is retarded to a certain extent by the a pressure of water that enters the valve housing 10 through supply connection 13 for-the pressure of this supply water is to a certain extent acting upon theunderside of valve 17 and against the underside of piston 26 that is carried by the upper end of valve 25.

Pin 30 functions to control the flow of water into the chamber above secondary valve 26 and as said pin is free to slide through the port 29 and further, as said pin tends to rotate as a result of water passing through the spiral groove 31, the port 29 will always be maintained in a clean condition, free of deposits or other accumulations and thus the time period of the refilling action of the valve is rendered uniform and positive.

The packing washer and the gland 47 on push rod 4L8 efiectually prevents leakage of water outwardly through connection 40 and tubular member 41.

When the stem 34c and yoke 35 are at their lower limit of movement, pin 36 occupies a position beneath the lip or plate 54 that overhangs the forward lower edge of inclined slot 55 and as a result of this arrangement, the stem 34 carrying valve 33 is effectually held against any upward movement as a result of syphonic act-ion that might occur within the upper portion of the main valve housing and which action might otherwise tend to unseat valve 33.

Thus it will be seen that I have provided a flush valve that is relatively simple in construction, positive in action and very effective in performing the functions for which it is intended.

The valves within the housing of the device cooperate in providing a non-leaking seal within said housing and the closing of the valves are automatically controlled so as to bring about the necessary refilling of the bowl with which the flushing device is associated.

In operation the flushing device is practically noiseless and its construction is such that it may be readily assembled and likewise readily taken apart for the purposes of inspection, adjustment or renewal of parts.

It will be understood that minor changes -56 in the size, form and construction of the various parts of my improved flushing device may be made and substituted for those herein shown and described without departing from the spirit of my invention, the scope of which is set forth in the appended claims.

I claim as my invention:

1. In a flush valve, a housing, a pair of concentric valves arranged for independent sliding movement within said housing for controlling the flow of water therethrough, one valve being arranged within the other, pistons carried by the upper portions of both valves and a tilting valve extending axially through openings in the lower portions of both valves for controlling the flow of water through one of said concentrically arranged sliding valves.

2. In a flush valve, a housing, a pair of concentric valves arranged for independent sliding movement within said housing for controlling the flow of water therethrough, one valve being arranged within the other, pistons carried by the upper portions of both valves, a tilting valve extending axially through openings in the lower portions of both valves for controlling the flow of water through one of said concentrically arranged sliding valves and manually operable means for imparting tilting and sliding movement to said tilting valve.

3. In a flush valve, a valve housing, a pair of concentrically arranged valves arranged for independent sliding movement within said housing, a seat for one of said valves within said housing, a seat within one of said valves for the other valve, a stem extending partially through the two first mentioned valves, a valve carried by said stem, a seat within one of the first mentioned two valves for the valve carried by said stem and manually operable means for tilting and elevating saidstem.

4. In a flush valve, a valve housing, a pair of concentrically arranged piston valves arranged for independent sliding movement within said housing, each piston valve being provided with a packing ring, a seat formed within said housing for one of said valves a seat formed in one of said valves for the other valve and a third valve normally closing an opening in the lower portion of the inner one of said concentrically arranged valves. r

5. In a flush valve, a valve housing, a pair of concentrically arranged piston valves arranged for independent sliding movement within said housing, each piston valve being provided with a packing ring, a seat formed within said housing for one of said valves, a seat formed in one of said valves for the other valve, a'third valve normally resting on a seat within one of said piston valves and manually operable means for simultaneously tilting and elevating said third valve.

6. In a flushing valve, a valve housing provided with an internally arranged seat, a piston valve arranged for operation within said housing and normally resting on the seat therein, a seat within said piston valve, a second piston valve arranged for operation within said valve housing and within said first mentioned piston valve, the lower end of which second mentioned piston valve normally rests on the seat within the first mentioned piston valve, the second mentioned piston valve having an internally arranged seat, a combined tilting and sliding valve normally resting on the seat within the second mentioned piston valve, there being a port formed through'the head of the second meniis 7 tioned I piston valve: and a pin arranged. for

slidin movement through said port. 7

7, n a flushing valve, a valve housing provided with an internally arranged seat, a piston valve arranged for operation within said housing and normally resting on theseat therein, a; seat within said piston valve, a second piston valve arranged for operation within said valve housing and within 1 said first mentioned piston valve, the lower end of which second mentioned piston valve normally rests on the seat within thefirst mentioned piston valve, thesecond mentioned piston valve having an internally arranged seat, a combined tilting and sliding valve normally resting on the seat within the second. mentionedpiston valve, there being a port formed through the head of the second mentioned pis- 7 ton valve, apin arranged for sliding move ment through said port and manually operable means for imparting tilting and sliding movement to said third mentioned valve.

8. In a flushing valve, a valve housing pro- I vided with an internally arranged seat, a piston valve arranged for sliding movement within said housingand normally resting on the seat therein, a seat arranged within said iston valve, a second piston valve arranged or a sliding movement within a said housing and within'said first mentioned piston valve and normally resting on the seat within said first mentioned piston valve, said second men flowof fluidthrough the valve housing, one of the piston valves being providedin its head with a port and a pin arranged for slid.- ing; movement through said port.

11.7 In a flushing valve, a housing, a pair of cooperating piston valves and a combined tilting and'sliding valve for controlling the flow of fluid ,throu h the valve housing, one of the piston valves eing provided in its head with a port, a pin arranged for sliding move.

ment through said port and a portion of which pin is cut away to permit the fiow of fluid through said port.

12. In a flushing valve, a housing, a pair of cooperating piston valves and a combined tilting and sliding valve for controlling the flowcof fluid through the valve housing,.one of the piston valves being provided in its head with a port, a pin arranged for sliding movement through said port and which pin is provided with a spirally disposed groove.

In testimony whereof I aflix my signature.

V JESSE G. OWENS.

tioned iston valve being provided with an I interna ly arranged seat, a valve normally resting on the seat within thesecond men,-

tioned piston :valve, a stem depending from a the third mentioned valve, a yoke carried by said stem, a plate arranged for sliding move- 7 1 ment in the lower portion of the valve housing and a pin and slot, connection between w said plate and yoke.

9. In aflushing valve, a valve housing pro vided with an internally arranged seat, a piston valve arranged for slidin movement within said housing and normal y resting on V the seat therein,a seat arranged within said piston valve, a second piston valve arranged for sliding movement within said housing and within said first mentioned piston valve and normally resting. on the seat within said first mentioned piston valve, said second mentioned piston valve being provided with-an internally arranged seat, a valve normally resting on theeseat within the second mentionedpiston valve, a, stem depending from the third mentioned valve, a yoke carried by said stem, a plate arranged for sliding movement in the lowerlportion of the valve housing, a pin and slot connection between said plate and yoke,,a spring held push rod connected to said plate and a handle for operating said push rod.

Y 10 In a flushing valve, housing, a pair of I cooperating piston valves anda combined tilting, and sliding valve for controlling-the

Images