US1698383A - Valve - Google Patents

Description

Jan. 8, 1929.

F. M. ASHLEY VALVE Filed April 8, 1926 2 Sheets-Sheet l f' "1 T113 1 f 'f DI G I il C4 H C D2 will!! L- Z C' i I C3 2 A' f 1 \AZ I vl 'I C2 J 'A B F J' l A3 E' E.

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F. M. ASHLEY VALVE Filed April 8, 1926 2 Sheets-Sheet 2 H D L l 4 L GG j! y H D' C fr A 5 O i Y El?, A?,

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UNITED. STATES mNK ASHLEY, F BROOKLYN, NEW YORF 'VALVE Application fled 8,

My invention relates to valves.

The object of my invention is to provide a valve construction that will have long life and will not leak.

Further objects of my invention and advantages derived from my construction will be set forth in the following s eciications.

Referring to the drawings orming a part of the specifications:

Fig. lis an elevational sectional view of a construction illustrating my invention.

Fig. 2 is a plan sectional view taken on line2-2 of Figure 1. y

Fig; 3 is a longitudinal sectional view of 15. a fragment of a modification of the lconstruction illustrated in Figure 1.

Fig. 4 is a longitudinal sectional view of a constructionillustrating another form embodying my invention.

Fig. 5 is a plan view partly in section, taken on line 5'5 of Figure 4.

A, indicates the body portions of the valve constructions, B, a primary or buffer valve, and C, the secondary valve. A indicates the inlet and A2 the outlet openingsof the valve body. The present constructions comprise a globe valve and plu valve combination, the body portion A ing formed 'like a. globe valve, and having its upper central portion extended and rovided with a conically shaped bore C' 1n which the plug portion C fits in the usual manner. The plug C is provided wlth a central bore C2 vwhich serves as a conduit from its lower end to the port (ls formed in its wall and 'opening to the outlet A2, and its upper end is provided with a conical surface C. A valve, stem D, is provided with a conical shaped bearing surface D which fits in tight sliding relation with the surface C* to provide a metal seat stuiing box; The stem is provided with a threaded bore D2 in its lower end to enga e the threaded stem B of the valve B. o prevent the ,valve B B2 is formed on its under side integral therewith and engages with a square shaped recess E formed in the bottom cap E; sa1d-cap E serving as a closure 'for the opening Aa formed in the bottom of the body A. A spring F is interposed between the under side of valve B and the cap E to support the valve B. `Channels G are formed in the walll of the'body A for oil, and similar-chan- 1936. Serial No. 100,508.

nels may be formed in the plug, as indicated 1n Figure 4-as G', and in this construction they 'may be so 'placed relatively as to form a single channel or oil reservoir by. means of which the plug may be lubricated.

The plug is rotated by means of a lever H which may be formed integral therewith as shown in Figure 4, or may be separable therefrom as shown in Figure l, whereby the lever may be set to lextend in an desired direction and to permit of this a justment the top 'end' of the plug is provided with teeth like those formed on a spur gear, and indicated by I and spaced entirely around the top end in a circle, and the lever is provided withcorresponding teeth to engage the teeth I, therefore byl raising the lever` above the end of the plug, it may be turned relative to the plug land then lowered into engagement as shown, and with the handle H extending in any .desired direction, as will be readily understood.

It will be observed that there is a vdifference in thev constructions shown in Figures 1, 3 and 4.

In Figures 1 and3 the widest part-of the plug is located at the lower end of the body A, whereas in Figure 4, the widest part of the plug is located at the upper end of the body, and the plug is removed through thel top opening of' the bore C instead of trough the opening A3 inthe bottom end of the body portion. In Figure 1 the primary valve B seats directly against the lower end J of the inner casing J, and when open, the pressure of the fluid passing through, tends to seat the plug. By removing the `handle "K, andI cap E, the entire working parts may be removed from the body A@ Qnthe other hand, the construction of Fi ure 4 permits the plug-to be removed Whi e the valveB holds the pressure from the inlet side.A, for inspection or relief on the discharge. side of the line. In Figure 4, the plug is provided with a pin L, which extends laterall fdirectly over a ring M which connected y a thread'Mfio the body A, and shouldthe plug stick inits 'seat, it may be lifted by screwing vthe cap M upward in contact, with the pin to release the excessive frictiony between the plug and body y It will be 'noted that the thiclmessl of the wall of the plug is practically -even thruoutv and thereforethe expansion and contraction due to changes in temperature, will not cause the plug to stick in the body portion.

. closed as will be at once apparent to` those skilled in this art.

The valve B may be removed for repairs and the 'plug valve used alone if necessary. Theplarge area of contact surface between the plug and body assures a Jmaximum of Wear land as only one port is used in the pllvg it is easy to keep it lubricated.

hel greatest advantage is that two separate -valves co-operate to hold .a tight'joint and that the wearing surface ofthe plug is never exposed to the fluids passing through the valve and therefore the scouring action of steam or other fluids do not injure the surfaces relied upon to keepa tight joint. The valve is operated as fol lows:

Assuming both valves to be closed, irst open the plug yvalve by turning the lever H until the port C3 is in perfect open communication with the outlet A2; then open valve B by turning the handle K is is done with thestandard globe valve.. All of the scouring action is talgen by valve B. In closing, first close valve B and then the plug valve. It is clearly evident that valve B takes the hard wear, and-even though it 1 ma soon leak, the plug valve holds tight,

an Y since the valve B may easily be reground or replaced, the valve as a whole wijlllhave long life and hold high pressures sa e y.

Having thus .described my invention `I claim' as new: i

1.IA valve construction comprising a body portion havinga conduit with an inlet and an outlet, and an opening in the bottom thereof; a bottom cap, a disc valve to serve as a buffer valve located .on the inlet or pressure side of 'the valve and a plug of i less diameter than the buffer valve located above the disc valve to provide a tight joint and removable thru said opening in the bot-- tom, and means by which said bufer valve may be 'opened after said plug valve is opened and closed before said plug valve is closed in operatin the construction, and means for preventing the rotation of the disc valve. s

2. A valve comprising a body portion having a bottom opening and a conduit and two ports formed therein, a buffer valve for closing one port and' a plu `valve. of less diameter than the buffer va ve for closing the other port, said plug valve having a bore thru which the stem of the buffer valve projects, a handle .for each of said valves, both of said valves being simultaneously removable thru said opening, a cap `for said opening and coacting means for preventing the rotation of said buler valve.

3. A valve comprising a body portlon having a conduit and 'two ports formed therein, a buffer valve for closing one port and a conical plug valve4 for closing the other port, said plug valve havin a bore through which the stem of the bu er valve projects, a handle for each of said valves,

a cap having means .for preventing the ro' tation'of the buffer valve and a spring located below the buier valve to assistin seating the valve.

4. A valve comprising a body portion having an inlet and an outlet and a conduit leading therethrough, a buffer valve and a plug valve controlling said conduit, said plug valve having a bore with a conicalsurface, said butler valve having a stem with a conical surface to fit the surface in the bore .of the plug valve, means for preventing the rotation of the buffer valve, means whereby said valves may be independently operated.-

5. A valve construction embodying a body portion having a conduit therein, and a bottom opening, a cap for said opening, two valves one of which is a disc of relativelylarge diameter and serves as a buffer valve and the other of which is a plug and serves to present a tight joint, both of which are simultaneously removable from the body' portion 'thru said bottom opening and both of which are pressed against their seats by the fluid pressure controlled thereby.

"6. A valve construction embodying a body portion having a conduit therein and a bottom opening, a bottom cap, and two valves controlling'said conduit, one of which serves asl a buffer valve and the other of which serves tohold'a tight joint, both being removable from the body portion through said. bottom opening, and co-acting .means between said bottom cap and buifer valve to prevent rotation of the latter. 7. A valve ,comprising a body 'portion having a conduit an a bottom opening, a plug valve of less diameter than that of said opening controlling said conduit, a buffer valve. seated against the body portion below said plug valve` and removable with the plug valve from the body portion thru said bottom opening, and a cap for said openin '.8. A valve comprising a body portion llaving a conduit and a bottom opening, a conical plug valve` controllin said conduit, a buffer valve of reater iameter than the plug valve seate against the body portion and controlling said oonduit,and removable from thebod portion through said bottom opening toge er with the plug valve, and a cap for said opening formed to co-act with said bu'er valve to prevent rotation of the latter.

9. A valve construction combining a plug valve and a. globe valve comprising a body portion having an upper and a lower valve port formed therein, .and having an opening in the bottom of the casing, and having an opening in the top of the casing; a conical plug valve fitted in the upper side of the casing and controlling the upper outlet port,

and having an inlet passage formed in its lower end; and having a valve stem extend-- ing therefrom thru sald top openmg, a lever connected to said stem for turning said plug; a disc valve. of larger diameter than the lower port and the adjacent end lozt' the plug valve, and means extending thrusaid plug and stem to operate said disc valve, a cap for said lower opening', and means cooperative with said disc valve and cap to prevent rota-- tion of said valve, said valves being removable thru the bottom opening.

10. A valve construction combining a plugl valve and a globe valve comprising a body portion having an upper and a lower valve portformed therein, and having an opening in the bottom of the casing, with a cap to close said opening, and having an opening in the top of the casing; a conical plug valve tted in the upper side of t-hey casing and controlling the upper outlet port, and having an inlet passage formed in its lower end; and having a valve stem extending there from thru said top opening, a lever connected to said stem for turning'said plug; a disc valve of larger diameter than the lower port, and t-he adjacent end of the plug valve located' below said port and controlling same, and means extending thru said plug and stem to operate said disc valve, and means cooperative with said disc valve and cap to prevent rota-tion of said valve, said valve being removable thru the bottom opening without removing the said means used for operating said valve said plug having a circumferential groove formed in its lower end, and packing in said groove which also serves as a seat for said disc valve.

11. -A plug and globe valve combination comprising a body portion having an inlet and outlet in alignment and an upper end lower valve port formed therein and an opening in the bottom and top of the casing, a cap for said bottom opening, aconical plug fitted in the upper side of the casing and controlling said upper outlet port and having an inlet passage in its lower end, and having a valve stem extendingA therefrom thru said top opening, a lever for said stem, a disc valve of larger diameter than the adjacent end of the plug, located below said port and controlling same, means extending thru said plug and stem to directly operate said disc valve, and means cooperative with said cap to prevent rotation of same, said valves being removable through said bottom opening.

12. A plug andvglobe valve combination comprising a'body portion having an inlet and outlet in alignment and an upper and lower valve port formed therein and an opening in the bottom and top of the casing, a cap for said bottom opening, a conical plug tted in the upper side ot' the casing and controlling said upper outlet port and having an inlet passage in its lower end, and having a valve stem extending therefrom thru said top opening, a lever for said stem, a disc valve of larger diameter than the adjacent end of the plug, located below said port and controlling same, means extending thru said plug and stem to directly operate said disc valve, and meanscooperative with said cap to prevent rotation of same said plug having a circumferential groove formed in its lower end and packing in said groove extending to the lower end of said plu In testimony whereof I have ailixedg my signature.

FRANK M. ASHLEY.

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