US1619054A - Discharge device for tanks - Google Patents

Description

. 1,619,054 March 1, 1927. M Q BLEST DISCHARGE DEVICE FOR TANKS Filed Dec. 13. 1921 2 Sheets-Sheet 1 j an) March :1, 1927.

M. C. BLEST' DISCHARGE- DEVICE yon nuns.

1-921 I v 2 Sheets-SheetZ Filed Dec. 13

I a. U i 1 2 in 7% 3 f 5 F (Jiumlar Patented Mar. 1, 1927.

MINOT C. BLES'I, Ol

BELLEVUE, PENNSYLVANIA, ASSIGNOR TO PRESSED STEEL CAR COMPANY, OF PITTSBURGH, EENNSYLVANIA, A CORPORATION OF NEM JERSEY.

DISCHARGE DEVICE FOR TANKS.

I Application filed December 13,1921. Serial No. 522,076.

This invention relates to discharge devices for tanks and especially to tanks for tank cars and has for an object the provision of a discharge device which is of simple construction, efficient and easily operated.

Another object of the invention is to provide a discharge device for tank cars which will automatically compensate for any vertical sagging of the tank, or for any variation in the vertical diameter of the tank which may be produced by expansion of the tank, or by any other cause and will thus ensure the easy operation of the device at all times.

Another object of the invention is to provide a discharge device for tank cars in which the discharge valve plug, when in its closed position, is not liable to be lifted from its seat through pressure from below the plug and further is not liable to be displaced by the movement of the car, vibration of the tank, or by the effect of the movement of the contents of the tank.

Another object of the invention is to provide a discharge device for tank cars which will, when the discharge valve is in open position, prevent the placing of the dome cap in its proper closed position and which will, whenthe valve is in closed position, permit of the placing of the dome cap in its proper closed position. i

Another object of the invention is to provide a discharge device for tank cars in which the discharge valve plug and the operating rod thereforare loosely connected together so that the plug can move relative to the rod in such a manner as to prevent the plug from binding on the component parts of the valve and also to ensure the proper seating of the plug on the valve seat.

Another object of the invention is to provide a discharge device for tank cars in which the discharge pipe is separate from the rest of the discharge device and is Secured to the tank independently of any other part of the device so that in the event of the discharge pipe receiving a heavy blow or becoming broken, the valve will not be liable to become damaged. p

A further objectof theinvention is to provide a discharge device for tanks in which the valve is secured to the tank withoutthe use of bolts or rivets thus rendering it easy to remove and replace the valve when it becomes necessary to clean, regrind the seat or the plug,or to apply a new valve.

These and other objects will be apparent from the following description.

Fig. 1, is a plan view of a portion of a tank and the discharge valve device; Fig. 2, is a sectional view of the same taken on the line 22 of Fig. 1; Fig. 3, is an enlarged composite view, the upper half being aplan of the discharge valve and the lower half being a sectional view taken on the line 3"3 of Fig. 2 Fig. 4, is a sectional view taken on the line 44L of Fig. 2; Fig. 5 is. an enlarged sectional view of the on the line 55 of Fig. 8 andQFig. 6-, is a sectional view taken on the line ti -6' of Fig. 5.

Referring now in detail to the drawings the reference character 1 indicates the tank which is preferably made of metal in the usual manner and 2' indicates. the tank dome which is of the usual form and is secured to the tank in any preferred manner and in its top is provided with an opening which is adapted to be closed by acap 3.

For the purpose of discharging the tank of its contents a discharge device 4 isprovided which comprises a valve 5, a rod 6, an operating lever 7 and a discharge pipe 8. The valve 5 comprises a hollow valve seat member 9 and a plug 10 adapted tobe moved upwardly and downwardly in the member 9. This member 9 preferably comprises'parts 11 and 12 the part 11 being arranged exteriorly of the tank and secured thereto and the part 12 being arranged interiorly of the tank and connected with the part 11. through the medium of inter-engaging screw'threads formed in the part 11 and discharge valve taken on the lower end portion of the part 12,

thus rendering the removal or replacement of the part 12 easy. The parts 11 and 12 instead of being made separate may if desired be made integral. The part 12cm tends above the part 11 and into the tank andat its upper end is provided with an outwardly extending flange 13 upon which a guide member 1a is secured by bolts or other suitable means. WVithin the part 12 a valve seat 15 is provided with which-the plug 10 is adapted to engage to close the valve. This seat is so located that it will be below the interior surface ofthe tank so that the contents of the tank may be entirely discharged through the apertures 16 formed in the part 12 above the valve seat.

The valve plug 10 is provided with pertion 17 the outer surface of which is adapted to engage the valve seat to close the valve and is further provided with a vertically disposd annular flange 18 which is adapted to contact with the interior surface of the part 12 and this flange, due to the large surface it presents to the interior surface of the part 12, will when the valve is being operated prevent the plug from binding in the part 12. The upper part of the portion 17 is provided with a recess 19 which is substantially cup-shaped in which the lower end portion 20 of the operating rod 6 is seated which portion is enlarged somewhat from the major portion of the rod and is semicircular in form. The rod and plug are held together by plurality members 21 which are secured to the portion 17 and engage the top of the portion 20, there being an opening 22 formed by these members sutiicientl lar e to ierinit the rod 6 to )ass b therethrough and to permit a limited free movement of the plug relative to the rod.

The rod 6 preferably comprises a lower part 23 and an upper part 24, the adjacent ends of which parts are screw threaded and are connected together through the medium of a screw threaded coupling 25 which is secured against rotation relative to such parts by rivets or other suitable means.

Above the enlarged portion of the part 23 a lug or projection 26 is provided which is preferably integral with such part but which if desired may be made separate therefrom and secured thereto in any suitable manner. This projection 26 extends outwardly from the part 23 and is adapted to engage with a screw threaded member 27 adjustably mounted in a lug 23 which is preferably integral with the guide member 14. This screw threaded member is preferably locked in adjusted position by a nut 29 which is mounted on the member and engages thelug 28. The top of the lug 26 is provided with a flat surface 30 with which the member 27 is adapted to engage when the valve plug 10 is in closed position and is also provided with a sloping surface with which such member may engage as the plug 10 is being closed. The top of this lug also forms a seat for the lower end of a spring 31, the guide member 14 forming a seat for the opposite end of such spring. This spring is adapted to force the plug 10 downwardly into contact with the'valve seat when the valve is being closed.

Above the sleeve 25 the upper part 24 of the rod 6 extends into the dome 2 and adjacent its upper end is loosely mounted in a bracket or bearing member 32 which is preferably secured to the dome. Above this bearing member the upper end portion of the part 24 is provided with a lever 33 which, intermediate its ends 34 and 35 is pivotally connected with such part by a pin 36 or other suitable means. The end portion 34 of the lever extends over, and is adapted to engage, a horizontal portion 37 of the bracket 32 while the opposite end portion 35 of the lever is adapted to extend into the vertical plane of the opening in the dome 2 and at its end is provided with an upwardly projecting portion 33 which when the discharge valve is in open position will extend into the dome opening and will occupy some of the space normally occupied by the dome cap 3 as shown in dot and dash lines in Fig. 2, and will thus prevent the application of such cap while the valve is in open position. Thisend portion of the lever is also provided with an operating handle 39 which is pivotally connected therewith in such a manner that when the lever is not being operatedv the handle will hang vertically from the'lever in a position where it will not interfere with any loading apparatus which may be insertedthrough the opening in the dome. This end portion of the lever rests on and is supported by a bracket 40 which has vertically disposed end portions 41 and 42 and a bottom portion 43 all of which are preferably integral. These end portions at their upper ends are preferably provided with flanges 44 which are secured to the top dome sheet 45. The end portion 42, some distance above the bottom portion 43, is provided with a notch 46 which is adapted to receive a portion ofthe lever 33 and support such lever as shown in dot and dash lines in Figs. 1, 2 and 4 to hold the valve in open position. Adjacent the end portion 41 the bottom portion 43 is provided with a recess 4.3 in which the lever is adapted to rest when the valve is in closed and locked position and when the lever is properly seated in this recess it will be prevented from accidentally moving along the bottom portion 43. Above the bottom portion 43 of the bracket a guard member 47 is provided such member having a vertically disposed portion 43 and a horizontally disposed portion 49. This portion 48 is provided with a flange 50 which is preferably secured to the dome sheet 45 while the portion 49 extends into an opening formed in the end portion 41 of the bracket 40. The

portion 48 is spaced away from thecnd portion 42 of the bracket 40 a suiiicient distance to permit the lever 33 to move upwardly and downwardly therebetween. The part 49 is spaced away from the bottom portion 43 of the bracket 40 a suiiicient distance to permit the lever 33 to be movedhorizontally therebetween. It will be noted that the bracket 40 and the guard member 47 promoved vertically will prevent undue horizontal movement of the lever.

Below thedischarge valve, a discharge pipe 8 is provided which is secured to the tank independent of any part of the" discharge valve so that in the event of the discharge pipe becoming damaged the valve is not liable to be disturbed.

The rod' 6 is made of a plurality of pieces to facilitate the application of the rod' to a tank and for the purpose oi adjusting the position of several of the parts of the valve mechanism, as well as for adjusting V the length of the rod. It will be noted that when the rod 6 is being applied to the tank the projection 26 on the part 23 may not be in. its proper operative position relative to the lever 33 which is mounted on the-part 24 and that the sleeve 25 will permit theturning of one part of" the rod relative to the other whereby the positions of the projection and the lever 33 may be properly adjusted relative to each other. After the parts and 24 are in their proper adjusted positions the sleeve 25 is secured to them, by rivets or bolts,1,insuch a manner that they fornr in affecta continuous rod, and movement of one part relative tothe other will not be permitted.

Assuming thedischargevalve device tobe in closed position. as shown in full lines in the drawings and it is desired todischarge the contents of a car equipped with this device the operation is as follows:the operator grasps'the handle39-a nd moves it from its inoperative vertically depending position shown in full lines in Fig. 2 to-its operative horizontal position asshown in dotted lines in this figure and by the use of this handle raises the lever 33 upwardly out of the notch L3 andmoves the lever in the direction as indicated by the arrow in Fig. 1; until the lever is in the position as indicated by the reference character 51' at which time the lever is moved upwardly to a position as in dicated by the reference character 52 where it engages the notch 46 as shown in dot and dash lines in Fig. l andflby reason of such engagement is held against accidental downward movement. As the lever 33 is moved in the direction as indicated by the arrow in Fig. 1 the projection 26 is moved in the same direction until the lever has been moved to the position as indicated by the reference character 51 at which time the projection 26 1s tree 01" the member 27, and as the lever 1s moved upwardly toward the position as indicated by the reference character 52 the end portion 34 of the lever engages the horizontal portion 37 ofthe bracket 32 which causes therod; 6' and plug 10'to move upwardly from the valve seat 15 thus permit tin-gthe contents of the tan: to discharge through the openings 16 and discharge pipe. As the valve plug 10 is movednpwardly the spring 31 is compressedihen the valve is in open positionthe projecting portion 33 of the lever 33 eatend'sinto the dome open.- ing' and occupies some of the space occupied by the dome cap 3'. Further when the valve has been movedtoopen position the operator. releases his grip on-th'c' handle 39which per.- mits such handle to move by gravity to a verticallydepending position under the lever 33 wliereit is entirely free of the dome opening It will here be noted that as the lever is moved out of the notch 43 and: along the bracket to the position indicated at 51' the end portion 34s of the lever does not engage the horizontal portion 37 of the bracket suchengagement being prevented by the guard member t-akingplace when the lever is being moved from the position indicated at 51 to the position indicated at 52, thuspreventing. undue strain on the projection 26 while it is in engagement with the member 27". It will further be notedthat by providing clearance between the-end portion 34 of the lever and the horizontal portion 37 of the bracket 32 as well as between theend portion of. the lever and the guard member 47, the tank may sag or the vertical diameter of: the tank may change, Without interfering with: the operation of the discharge valve device as .a whole.

When it is desired to close the valve the operator by the use of the handle 39 raises the lever out of engagement with the notch 46 and moves the lever downwardly, the spring 31 assisting which. causes the plug 10 tomove downwardly into contact with the valve seat. The lever is then moved in the direction opposite to that indicated by the arrow in Fig. 1, which causes the pro; jection 26 tomove into engagement with the member 27 to hold the plug 1 0 in close con tact with the valve seat. The projection 26 is provided with a wedge shaped portion 53 which when the valve is being closed: is

adapted to engage the member 2. and: force the plug 10 into close engagement with the valve seat. i i

It will be apparent to those skilled: in the artto which this invention appertains that changes may be made in the ar rangement and detail of the several parts of the invention without departing from the spirit and scope of the appended claims.

Having thus described the invention what I claim as-new and desire to secure by Letter sPatent is:

1. A discharge valve device for tanks com prising a valve'seat member, a valve plug, a rod for operating said plug, a projection on saidrod, and adjustable meansonsaid valve seat member adapted to be engaged by said projection to hold said valve plug in closed position. Y

2. 'A dischargevalve-for tanks-comprising H 4+, such engagement only a valve seat, a plug adapted to cooperate with said seat to open and close the valve, a rod for operating said plug and adjustable means for holding said plug in close engagement with said seat when the valve is closed, said means comprising a lug on said rod and an adjustable member independent of said rod.

3. In a discharge valve device for tanks, a discharge valve, a rotatable lever for rotating said valve, and a handle on said lever which when in operative position extends beyond the end of said lever and When in inoperative position is wholly back of the end of said lever.

4. In a discharge device for tanks, a discharge valve, a lever for rotating said valve, and a handle loosely mounted on said rota-t able lever and adapted to form an extension thereon when in operative position and adapted to move by gravity to inoperative position back or". the end of said lever.

5. In a tank car, a discharge valve, a rod, means pivotally mounted on said rod for rotating and moving said rod vertically for operating said valve, and means for preventing vertical movement 01' the red as it is rotated.

6. In a tank car, a discharge valve, a rotatable and vertically movable rod for operating said valve, a lever pivotally mounted on said rod for operating it and means adapted to engage said lever to prevent vertical movement of said rod as it is rotated.

7. In a tank car, a discharge valve, a rod, a lever pivotally mounted on said rod for rotating and moving said rod longitudinally for operating said valve, and means for preventing longitudinal movement of said rod as it is rotated and rotary movement as it is being moved longitudinally.

SIIn a tank car, a discharge valve, a rod, a lever for rotating and moving said rod longitudinally for operating said valve. a bracket for said lever and means associated with said bracket adapted to prevent longitudinal movement of said rod as it is. being rotated.

9. In a tank car, a discharge valve, a rod, a lever for rotating and moving said rod longitudinally for operating said valve, a bracket for said lever and means associated with said bracket adapted to prevent longitudinal'movement of said rod as it is being rotated and rotary movement as it is being moved longitudinally.

10. Ina tank car, a discharge valve, a rod, a bearing member for said rod, a lever for rotating and moving said rod v-ertically to operate said valve, said lever being adapted to engage said member to move said rod vertically.

11. In a tank car, a discharge valve comprising a discharge valve member, a rod for operating said valve, an adjustable member in said valve member, and a pro jection on said rod adapted to engage said adjustable member to hold said valve closed.

12. In a tank car, a discharge valve comprising a valve seat member, a guide member secured to said valve seat member, a projection on said guide member extending into said valve seat member, a member mounted on said projection, a rod for oper ating said valve'and movably mounted in said guide member, and a projection on said shaft adapted to engage the member mounted' in the first mentioned projection to hold valve closed.

13. In a tank car, a discharge valve, a rod, a bearing member for said rod, a lever for rotating and moving said rod vertically for operating said valve, a guard member for said lever, said lever being out oi engagement with said guard member and bear ing member when the valve is closed Where by vertical movement of the rod is prevented.

lt. In a tank car. a tank, a dome, a discharge valve in said tank, a rod rot-atably and vertically movable for operating said valve, a projection on said rod movable therewith, means in said valve adapted to cooperate with said projection to hold said valve elosecha lever located in said dome for operating said rod, and means in said dome for preventing vertical movement of said rod when the projection on said rod is in engagement with the first mentioned means. 7

15. In a tank car, a discharge valve, a rod rotatably and vertically movable for operating said valve, a lever for rotating said rod and for moving said rod vertically, and a member forming a fulcrum for said lever when the rod is being moved vertically.

16. In a tank car, a tank, a valve seat member comprising a part secnred to said tank exteriorly thereof, a partconnected with the first mentioned part and being Wholly within the tank, a valve seat in the last mentioned part, a plug adapted to cooperate with said seat to retain the lading or permit it to be discharged, and a rod for operating said plug, said rod being loosely connected with said plug, and means in said valve seat member adapted to cooperate with said rod to hold said plug in engagement with said seat.

17. In a tank car, a tank, a dome having an opening formed therein, a cover for said opening, a discharge valve for said tank, a rotatable and vertically movable lever for operating said valve, means on said lever adapted to extend into said opening,.when the valve is open, and occupy a portion of the space normally occupied by said cover when the valve is closed. and means for supporting said lever whereby downward move ment of the lever and the application of said cover is prevented.

18. In a tank car, a tank, a dome having an opening formed therein, a cover for said opening, a discharge valve for said tank, a rotatable and vertically movable lever for operating said valve, a portion of said lever being adapted to extend into said opening when the valve is open, and means for supporting said lever When the valve is open, said portion and means being adapted to cooperate to prevent the application of said cover to said dome when said valve is open.

19. In a tank car, a tank, a dome having an opening formed therein, a cover foropening and closing said opening, a discharge valve for said tank, a rotatable and longitudinally movable rod for operating said valve, and a lever pivotally connected With said rod for rotating said rod and for moving it longitudinally, said lever being adapted to prevent the application of said cover to said dome When said valve is in its open position.

20. In a tank car, a tank, a dome having an opening formed therein, a cover for opening and closing said opening, a discharge valve for said tank, a rotatable and longitudinally movable rod for operating said valve, and a lever pivotally connected With said rod for rotating and moving said rod longitudinally, said lever having an up Wardly extending portion adapted to extend into said opening When said valve is open to prevent the application of said cover.

21. In a tank car, a tank, a dome having an opening formed therein, a cover for opening and closing said opening, a discharge valve for said tank, a rotatable and vertically movable rod for operating said valve, and a lever for rotating and moving said rod vertically, said lever intermediate its ends being pivotally connected with said rod.

In testimony whereof I aflix my signature.

MINOT C. BLEST.

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