US1546527A

US1546527A - Valve

Info

Publication number: US1546527A
Application number: US713219A
Authority: US
Inventors: James G Werner
Original assignee: AUBREY L ASHBY; BERTHA F WERNER
Current assignee: AUBREY L ASHBY; BERTHA F WERNER
Priority date: 1924-05-14
Filing date: 1924-05-14
Publication date: 1925-07-21
Anticipated expiration: 1942-07-21

Description

July 21, 1525. r 1,546,527

J. G. WERNER VALVE File lay 14, 1924 I I /I/// I I I I J} WITN SES: INVENTOR 535d. 1 J6Z/775 6 Werner ATTORNEY Patented July 21, 1925.

, UNITEDSTATES PATENT OFFICE.

JAMES G. WERNER, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR. OF ONE-THIRD TD BER'IHA F. WERNER AND ONE-THIRD 10 AUBREY L. ASHBY, BOTH OF PITTS- BURGH, PENNSYLVANIA.

. VALVE.

Application filed May 14, 1924. Serial No. 713,219.

1 0 all whom it may concern:

Be it known that 1, James G. WERNER, a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania,v have invented a new and useful Improvement in Valves, of which the following is a specification.

My invention relatw to valve devices and particularly to check valves to be used in connection with fluid-measuring pumps.

One object of my invention is to provide a check valve that shall effectively prevent the leakage of the fluid after it has been drawn through the valve. I

Another object of my invention is to provide a valve, of the above-indicated character, that shall have means for effectively po sitioning the same away from the bottom of the fluid receptacle.

Another object of my invention is to provide a valve that shall have strainers so located therein that sediment from the bottom of the fluid receptacle in which it is disposed will not be drawn through the valve.

Another object of my invention is to provide a valve device that shall be effective irrespective of the inclination of the same when installed.

Another ob ect of my invention is to provide a valve'devlce, of the above-indicated character, that shall have two portions se-,

cured together by bolts to permit ease in disassembling the device.

A further object of my invention is to provide a valve device, of the above-indicated character, that shall be self seating, positively actuated, yet simple in construction and elfective in its operation.

In practicing my invention, 1 provide a two part casing, the two parts of which are secured together by bolts. The lower part of the casing is provided with a spacing foot and wire mesh screens in the sides thereof. A valve member having an annular tin insert co-operates with a valve seat in the lower part of the casing. A spring is disposed between a guide in the upper part of the casing and the valve for positively seating the same, and a guide 18 provided in the lower part of the casing to prevent the valve from turning.

With the above arrangement, the valve will always seat itself irrespective of the inclination of the casing and proper screening of the fluid being measured, such as gasotank or receptacle 3 Which is usually located below the surface of the ground. A check valve #1 is connected to the lower end of the pipe 2 to prevent the leakage back into the tank 3 of gasoline which has been drawn into the sentry ormeasuring device 1.

The check valve 4 comprises, in general, a two-part casing, the upper part 5, of which is screw threaded to the pipe 2 and the lower part 6 of which is provided with a bottom plate 7 that is screw threaded to the part 6 and provided with a spacing foot 8 that rests-against the bottom of the receptacle 3. The bottom plate 7 is also pro vided with a projection 9 having a slot 10 therein forv purposes hereinafter set forth. Windows 11 are provided in the lower part 6 of the casing and wire mesh screens 12 are disposed in the windows to strain the gasoline.

The two parts of the casing are provided with

flanges

13 and 14 that have corresponding bolt holes therein to receive bolts 15 to secure the two parts of the casing together.

The lower part of the casing has an internal flange 16 which constitutes a valve seat. A valve disk or member 17 is disposed in the casing and it has two projections or

guide rods

18 and 19 thereon. The guide rod 19 is disposed in the projection 9 and has a pin 20 therein that is disposed in the slot 10 for the purpose of preventing the disk 17 from turning. The upper projecion or rod 18 of the valve is guided by a guiding member 21 that forms a part of the upper part 5 of the casing. A spring 22 respective of the inclination of the casing. The spring is just strong enough to permit the suction of the pump 1 to unseat the valve, but when the suction is removed the spring immediately reseats the valve.

The disk 17 is usually made ofbrass-or other relatively hard material as is also the valve seat 16. The disk 17 has an annular groove 23 therein in which is deposited a tin or other relatively soft metal insert The tin insert 24- bears upon. the inclined face of the valve seat and by reason of its relative softness it will insure. an effective seating, and of course, noleakage will occur. It has been found that with this type of valve seat it is necessary to'prevent the two parts of the valve from turning relatively for such movement would cut annular grooves in the tininsert 24;. This is accomplished byt-he pini2O and the slotlO in'the guide9. It'hasbeen. further found-that a valve of'this type will continue to readjustits seat until all of "the tin insert has been worn away.

In order to inspect the device, it is only necessaryito remove the bolts 15 and separate-the-two parts of th housing. The separation of the two parts of'the housing releases the disk lT'and it may be'rea'dily withdrawn without further manipulation.

It will be noted that the spacing foot 8 isprovided to raise-the windows 11 above such silt that may be in the bottom of'the receptaclefiS andt he windows 11 are placed inthe sideofthe casing instead of in the bottom for a similar,purpose.

In ordentoprevent scale and dirt from the pipe Zfrom entering the chamber of the valve 4, a mesh screen'25 is' 'irovided. The screen 25has a ring 26 at1its outer edge that is provided with screw threads to engage the threads in the upper-part 5 of the valve 4. The screen 25 is screwed into its posit-ion as shown before the valve i vis screwed ontothe lower end of the pipe 2*, and may be removed at any time by removingthe valve 4 from the pipe'Q and unscrewing the screen. from its position. The conical form ofthe screen as shown permits scale-and dirt that'falls back from the pipe Qto be collected in an animlar groove 27near the periphery ofthe screen 25, thereby leaving the central portion of the screen clear to permit free passage of fluid from the tank 3 upwardly therethrough. i

'W hile I havefound that the valve herein illustrated gives excellent results in that it prevents-the, gasoline pump from delivering less than is indicated because it prevents the gasoline from leaking back into the receptacle, it is conceivable that various modifications may be made Without departing from the spirit and scope of my invention, set forth in the appended claims.

I claim as my invention:

1. A check valve for fluid pumps comprising a two-part hollow casing, means for bolting the parts together, a bottom plate for the lower part of the casing screw threaded thereto and'having a spacing foot extending outwardly therefrom, wire mesh screens in the sides of the lower part of the casing, a spring-restrained valve member seated abovethe screens in the lower part of the casing, and a guide for the valve member disposed in the'upper part of the casing.

2. A check valve for fluid pumps comprising a two-parthollow casing, means'for bolting the partstogether, a. bottom plate for the lower .part of the casing screw threaded thereto'and having a spacingfoot extending outwardly therefrom, 'wire mesh screens in the sides of the lower part of the casing, a valve member seated above the screens in'the'lower part of-the casing, a guide member for the valve member ;dis posed in the upper part of the casing, a spring disposed between the guide member and the valve member, and HIGHDSHIOUHtQQl on'the bottomplateto precludethe valve member from turning.

23. A check valve for fluid pumps comprising a casing having a valve seat therein, a spring pressed valve member having a soft metal insert for engaging the valve seat, and. means to prevent relative turning ino\ement between the valve member and the seat.

l. A check'valvecomprisinga co-operatingva-lve seat and a movable member constructed of relativelyhard material, a tin; insert in one of'the 'co-operating members, and i'neans for preventing the members from turning relatively to each other.

5. A check valve for a. fluid pump comprising a casing, afoot on the lower part of the casing for spacing the valve from the bottom of the fluid receptacle in which it is disposedyand a'spriifig-ac'tuated, self-seating, non-rotatable valve in the casing.

6. Achecl; valve comprising a casing having a spacing foot at'the bottom'thereof, wire screens in'the sides only thereof, and a valve'therein'that will properly seat irrespective of'the inclination of the casing.

'7. A valve device .of the character described comprising a conical mesh screen in the upper portion thereof to preclude the entrance of undesirable'matter into the valve chamber from the apparatus thereabove.

In testimony whereof, I have hereunto subscribed my name this 26th day of April 1924.

J'Al 3E3 G. 'VJER NEE.