US1238622A - Tank outlet-valve. - Google Patents

Description

'G. M. BACON.

TANK OUTLET VALVE. APPLICATION r1150 1A11.ao.1911.

Patented Aug. 28, 1917.

2 sums-sum 1;

G. M. BACON. TANK OUTLET VALVE- APPLICATION FILED sumo, 1917.

Patented Aug. 28, 1917.

2 SHEETSSHEET 2.

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I comes all of the above-enumerated disad- GEORGE M. BACON, 0F SALT LAKE CITY, UTAH.

TAN K OUTLET-VALVE.

Specification of Letters Patent.

Patented Aug. 2&3, "2

Application filed January 30, 1917. Serial No. 145,559.

To all whom it may concern:

Be it known that I, GEORGE M. BACON, a

citizen of the United States, and aresident of Salt Lake City, in the countyof Salt Lake and State of Utah, have invented a certainnew and useful Improvement in Tank Out-- let-Valves, of which the following is a specification.

The present invention relates to valves,"

and more particularly to that type which may be used in tank cars, and the like, for. controlling the outflow of the contents of the cars, and for retaining the contents from escaping during storage and transportation.

In the practical use of valves of this general character, which are at present installed in tank cars, the valves are found to be in many particulars defective, and to consequently present many disadvantages; chiefly among which may be mentioned the follow- 1ng: w i -(a). It is practically impossible to, determine when the valve isproperly seated, and the flow of the contents of the cars is completely out ch.

(b); No means is provided for ascertaining whether or not the valve,has been unseated during transit, or for holding the valve from dislodgment incident to the vibration of the car. The cap usually secured over the outlet beneath .the car prevents the immediate detection of any leakage which frequently occurs with the usual form of valve.

(c). The construction of the type of valve at present employed is such that the fluid in the tank cars, and the sediment and impurities in the fluid, flow over and frequently become deposited upon the seating surfaces of the valve parts, with the result that the seating parts are submitted to undue wear, and the accumulation of the sediment between the parts prevent the seating of the same, thus causing the valve to leak.

An object of the present invention is to provide avalve construction which overvantages, and others which will be apparent from the following detailed description of the present embodiment of the invention, and which at the same time will meet all of the rulesand requirements relating to theconstruction of tank cars, and the installa tion of valves therein.

' A further aim of this invention is to provide a valve of this character with means .for operating the valve at a distant point therefrom; such as 'at a point above the valve whenthe same is installed in a tank car, and to provide means to determine at such point the adjustment of the valve.

The above, and various other objects and advantages of this invention will be in part described, and in part understood, from the following detailed description of the present preferred embodiment, the same being illustrated in the accompanying drawings wherein:

Figure 1 is a longitudinal section, partly in elevation, of a valve constructed according to the present invention.

Fig. 2 is a side elevation of the movable part or turning plug of the valve, part of the same being shown in section.

Fig. 3 is a transverse section taken on the line 3-3 of Fig. 1, showing the parts con- .nected together, and showing the valve in open position.

Fig. i is a view similar to Fig. 1, showing the valve in closed position.

Fig. 5 is a fragmentary side elevation of a tank car, having the valve of this lI1VB11- tion applied thereto, parts of the car being disclosed in section to show the valve.

Fig. 6 is a horizontal section taken through the dome of thetanl: car on the line 6 -6 of Fig. 5, the full lines showing the operating lever in position when the valve is open, and the dotted lines showing the position of the operating lever when the valve is closed.

Fig. 7 is a vertical transverse section taken through the dome of a tank car having the valve of this invention applied thereto, the view disclosing the operating handlesecured in position for maintaining the valve -which tapers in diameter from one end or the base of the casing 10 to the opposite or outer endthereof. The base end of the bore merges into a threaded portion, formed by relatively coarse screw-threads 12 formed in the inner wall of the base of the casing.

The casing or body 10 is provided, out

iitlli 'wardly of the attaching flange 11, with a pair of diametrically opposed elongated outlet openings 13, and fitting in the ax1alopening in the body part is a movable part or turning plug 14 having external screw threads at its base portion for engagement with the threads 12 of the casing 10. The

turning plug 14 is hollow, and the interior thereof opensthrough said base portion. The outer endlof the turning plug 14 is closed by an outer end wall 16, and the diametrically opposed sides of the turning plug are provided with a pair of registering elongated outlet openings 17. The turning plug 14 is provided, at the opposite ends of the o enings 17, with a pair of annular valveb' 'aring or seating faces 18 and 19 which lie in planes transverse to the axis of the turning plug 14, and are adapted to engage the inner wall of the body 10 at the opposite ends of the openings 13 in the body. These annular bearing surfaces 18 and 19 prevent leakage between the body and the turning plug at the opposite ends of the openings 13 and 17, and provide means for centering the turning plug 14. in the valve body. The

turning'plug 14 is also provided on its exterior surface, and about the openings 17, with fillets or raised seating faces 20 adapted to bear against the inner wall of the valve body 10. The turning plug 14 tapers from its base to its outer end, and'the bearing or seating surfaces 18, 19 and 20 conform to'the taper and are adapted to fit snugly in the casing or body 10: The threads 12 and 15 formed respectively upon the base portions of the body 10 and the turning plug 14; are of such pitch that a quarter turn of the plug 14 to move the openings 17 out of register with the openings 13, advances the turning plug 14 through the casings 10 sufiiciently to firmly bind the seating or bearing ' faces 18, 19 and 20 against the inner wall 7 of the casing 10 and thus seal the plug in the casing.

The outer wall 16 of the turning plug is provided on its outer face with a socket 21 in the form of an annular outstanding flange into which may be fitted the adjacent end of a valve rod'22. The valve rod 22 may be in the form of a hollow pipe having the required torsional resistance, and which is held in the socket 21 by a transversely extending key 23 engaging through the walls of the socket 21 and the pipe 22, and held in place by a cotter pin 24, or the like.

The drawings disclose the valve of this inbelow the bottom of the tank. The reduced end of thevalve extends upwardly into the tank, and the valve rod 22 passes upwardly into the dome B. A bearing bracket 25 is secured against the inner wall of the dome B and slidably and rotatably receives the upper end of the valve rod 22 therethrough.

A hand-lever 28 is mounted at one end upon. the upper extremity of the valve rod 22,

and is of such length, and is so, mounted upon the valve rod 22, that the lever 26 may be moved through substantially ninety degrees in opposite directions to open and close the valve.

A chain 27 is secured to the free end'of the lever 26 and is of open-link construction, and is adapted, when the valve is closed, to engage one link at a time over a hook 28 which projects from-the ,innen wall of the dome B. The 'chain 27 is adapted to hold the valve from accidental displacement when adjusted into closed position, and the links of the chain permit of the locking or holding of the valve at various opening or closing positions to control the flow of the contents from the tank A.

The base or lower end of the body 10 of the valve may be externally screw-threaded,"

as at 29, to receive thereon a closure cap 30,. such as is usuallyemployed, for covering the outlet from the tank. I

When the valve is installed on a tank can, and the valve is adjusted into open position, the fluid in the tank car is permitted to flow outwardly therefrom through the openings 13 and 17, and downwardly through the turning plug- 14. To close the valve it is only necessary to swing the lever 26 from the position shown in full lines in Fig. 6, to the position shown in dotted lines therein, which operation rotates theturning plug 14 in the'casing 10 and turns the openings 17 out of register with the casing openings 13. At the same time, the inter-engaging threaded portions 12 and 15 of the valve casing 10 and the turning plug 14, raise the I turning plug 14 and bind the bearing and seating faces 18, 19 and 20 against the inner walls of the casing 10. The fillets or bearing faces 20 which surround the openings 17 insure the sealing of the turning plug in the casings about the openings 17 and thus prevent leakage between the casing and the turning plug.

The fluid in the tank A flows outwardly through the openings 13 and 17 and does not pass over any of the bearing surfaces of the casing or turning plug so that the bearing surfaces are not subjected to undue wear, and are in such position that sediment and the like cannot deposit thereon and become engaged between the bearing surfaces when the same are seated.

When the valve is open, as shown in Fig.

1, the seating or bearing surfaces 18 and 19 a nasaeaa lie above and below the openings 13 and 17 respectively, and the outfiowing fluid does not cornein contact with the bearing surfaces but passes through the openings as above described. The fillets or hearing surtaces 20 are also housed in the casing 10 and the fluid does not pass thereover. The turning plug l l fits snugly in the casing 10 when the valve is open as shown in F 1., but'admits of the binding or tightening of the turning plug in the casing \vhenthe valve is closed as shown in Fig. i.

The position of the lever 245 indicates the condition of the valves and shows whether the valve is open or closed. l The chain E2? retains the lever 26 in adjusted position and the valve therefore cannot become unseated by the vibration of the tank car during transit. The casing or body 10, and the turning plug 14: may be tapered to any desired extent throughout their length, and is shown in the present instance as being tapered from the plane of the attaching liar 7c 11 outwardly. The outer end of the body 10 has its interior surface machined or ground to provide a smooth surface for engagement with the .iillcts to etleetually seal the turning plug in the casing body.

It is of course understood that the valve i this invention is applicable to various devices other than tank cars as above specifically pointed out, and that the casing or body 10 may be provided with any suitable attaching means for holding the body in the position desired. The invention also einbraces various other changes and niodilica' tions in the construction of the above-specifically described valves which are limited only by the scope of the following claims.

I claim z 1. In a tank valve, the combination of a casing having anupvvardly tapering bore opening through the top and bottom of the casing;- and having lateral outlet openings, a turning plug fitting upwardly in the easing, and having a bore opening through the lower end of the plug and closed at its top to close the upper end the casing, the plug also havii'ig lateral outlet openings adapted to register with the lateral open ings in the casing, the casing and the plug having means adapted to retain the plug in the casing and advance theplug upwardly therein when the plug is turned to close the valve, and operatingineans connected to the upper end of the plug to turn the same.

2. The combination with a tank, of a valve casing secured to the bottom of the tank and having an upwardly projecting tapering portion provided with outlet opera ings in its side, a turning plug fitting in said valve casing and provided with an up Wardly tapering portion having an outlet opening in its side, means for retaining said plug in the casing and adapted to advance the plug upwardly into the tapered end of the casing when the plug is turned, a valve rod connected to said plug and extending upx ardly througlii the tank an operating lever connected to the upper end of said valve rod and adapted to be turned to rotate the plug whereby said means is adapted to bind the plug in the casing.

3. The combination with. a tank, of a valve casing adapted. to be secured in vertical position to the bottom thereof and having a tapering upper end, a turning plug fitting insaid valve casing and having a tapered upper enrh said casing and said turning plug being provided with interineshing threaded portions at their lower ends to retain the plug in the casing and to advance the plug upwardly in the casing when the plug is turned, said casing and.

turning plug being also provided. with lateral outlet openings brought into register by the rotation of the plug, a valve rod connected to the upper end of the plug and projecting upwardly through the casing, a handle connected to the upper end of said alve rod and adapted to be swung in opposite directions for opening and closing the valve, and. means for securing the handlever in various adjusted positions.

t. The combination with a tank car including a tank having the usual dome, of a valve casing projecting vertically through the bottom of said tank and provided with an annular attaching flange adapted to be secured to the said tank bottom, said valve casing having an axial opening therethrough with internal threads at the base of the casing and tapering at the upper end of the bore a turning plug fitting in said valve casing and provided with an axial opening therein closed at the top of the turning plug and having external threads at the lower end of the turning plug for engagement with the threads of said casing to retain the turning plug in the casing and to advance the plug upwardly therein upon the turning of the plug, said casing and said turn plug being provided with lat- 1 eral outlet openings adapted to be brought into register to drain said tank, a valve rod connected to the upper closed end of the turning plug and extending upwardly through th tank into the dome, an operating lever secured to the upper end of said valve rod and adapted to engage one side of said demo to hold the valve in open position, and adapted to be turned through substantially inety degrees against the opposite side of the dome to hold the valve in closed position.

5. Tie combination with atank car provided with the usual tank and a dome thereon, oi a cylindrical valve body adapteo for secur-uneut vertically through the bottom of said tauln a turning plug Within said valve body, said valve body and said turning plug tapering at their upper ends and provided with lateral outlet openings adapted to-be brought into register by the rotation of the turning plug, a valve rod securedto the upper end of the turning plug and projecting upwardly through the tank and into said dome, a hand lever'connected to ,the upper end of said valve rod project- "the valve casing for retaining the plug therein and for advancing the turning plug upwardly in the casing to bind it in the V latter when turned into closed position.

6. In a valve for tank cars including the usual tank and a dome therefor, the combination of a vertically disposed casing adapted to be secured to the bottom of the tank, a turning plug mounted in said casing, means connecting the turning plug to the casing to retain the plug therein and for advancing the turning plug upwardly in the casing to bind the plug therein when the latter is rotated, a valve rod connected 'to said turning plug and adapted to extend upwardly through the tank into said dome,

an operating lever connected to the upper end of said valve rod, said operatingleverbeing adapted to be swung against one side of said dome to open the valve and against the opposite sides of the dome to close the with internal and external threads and having an upwardly tapering end adapted to extend into the tank with lateral outlet openings therein, a turning plug fitting in said casing and provided with external threads upon its lower end adapted for intermeshin engagement with the internal threads 0 the casing to retain the plug therein and for advancing the plug upwardly inthe casing when the plug is rotated, said turning plug being provided with an axial opening therein openin through the lower end of the plug and through the casing, and having. lateral outlet openings inits opposite sides adapted to register with the outlet openings in said casing, a valve rod detachably connected to the upper end of said turning plug and extending upwardly through the tank and into said dome for operating the valve from the latter, and a tap detaehably secured over the lower threaded end of said valve casing for closing the lower end of the casing and the turning plug.

GEORGE M. BACON.

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