US1509146A - Tank-discharge-valve mechanism - Google Patents

Description

O. HxHBERG TANK DISCHARGE VALVE MECHANISM Filed Jan. 5. 1921 2 Sheets-Sheet. l

Sept. 23 1924.

O. HOCHBERG TANK DISCHARGE VALVE MECHANISM 2 Sheets-Sheet 2 Filed Jan. 5 1921 Patented Sept. 23, 1924.

UNITED STATES PATENT OFFICE.

OSCAR NOOHBEBG OF NEW YORK, N. 2., ASSIGNOR '10 AMERICAN CAR AND FOUNDRY COII'ANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF JERSEY.

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I Application filed January 5, 1921. Serial No. 435,158.

To all tuihom it may concern:

Be it known thatI, OSCAR Hooncenne residing at New York, in the county and gtate of New York, and being a citizen of the a United States, have invented certain new and useful Improvements in a Tank-Discharge Valve Mechanism, of which the following is' a full, clear, and exact description', such as will enable others skilled in the i 'art'towhich it 'appertains to make and to uselthe same, reference being had to the accom -an'ying drawings, which illustrate the pre erred form of the invention, though it is to be understood that 'the invention is not 1 limited to the exact details of construction shownand described, as it is obvious that various modifications thereof within the sco e' of the claims will occur to persons I ed in the 'art.

so In said drawings:

Fi "re 1' is'avertical longitudinal section taken on line -11 of Fig. 2 looking in 'the directionindicated by the arrow, and showing'the preferred form of my invenac tion; Figure2 is a lan view of the same;

'3 is; orizontal section taken on the hne 3 -3 oi Fig. 1 looking in the direction indicated by the arrow; y

F 4 is a' sectional view similar to 1, but showing the valve looked upon its seat;

Figure 5 is a, vertical section taken on line 5-5 of F' l,looking in the direction indicated by e arrow, and showing the flexible connection between the valve and valve supporting and locking member;

Figure 6 is a view similar to Fig. 5 show- 1 1 a modified form of flexible connection igure 7 is aview similar to Fig. 1 showin a further modification; and

igure 8 is a horizontal section taken on line 8-8 of Fig. 7, looking in the direction indicated by the arrow.

1 My invention relates to the' class of outlet valves emplo ed in tanks used for the transportation 0 oil, asphalt and like commodities, and is of the type adapted to prevent extraction of tank contents except 111E311 manipulation at certain valve contro g the tank.

One object of my invention is to provide means for positive ylocking the valve upon its seat. a

" Another object is to efiect the locking of wiping the valve seat, and other means asother without aflectin the functions of the sting shaft 20 extending upwardly from and resting u on said housing and a valve 21'is fsupporte below the lower end thereof. The

sleeve 19 is socketed to-fi'eceive a the stem portion 23 of valve 21.

the valve through the medium of a reciprooatory valve-supporting member having telescopic engagement with said valve.

A further object is to'provide means for sociated therewith for subsequently inding said seat prior to the locking of t e valve thereon. t In said drawings, 10 designates the tank at the bottom of which is arranged the usual discharge outlet 11 with which is associated a valve cage 12 preferably secured to the outlet by meansv of an exteriorly threaded annular base portion 13 let into the discharge outlet. The valve housing further comprises two'or more posts 14, spaced a art to provide openings-215 for the egress or? the tank contents, and connected at their upper ends by an annular screw-ta ped portion 16.

\Vithin the screw-tappe portion 16' is fitted the valve-mechamsm housing 17 held from rotation therein by set-screw 18, or the like. The housin 17 and valvecage '12 are shown and descrfiied as separate members, and such construction is preferred because of the greater convenience and economy in the renewal and repair of worn or broken parts, but the housing and cage members may each be made an integral part 'of the moving parts hereina er to he described. 7 The housing 17 is tappedto receive a reciprocatory valve-supporting .and locking sleeve 19 with which is associated an operstemiportion'22 of operating sha '20 and Both operating shaft 20 and valve 21 have telescopic engagement with the reci rocatory' valve-su porting sleeve 19 throng the niedium 0 their respective stem rtions 22 and" 23. Valve stem 23 is flexi 1y secured to sleeve 19 by a pin and slot connection comprising slots 24 in the sleeve 19 and cooperating pin 25 in the valve stem23 or,

as shown in Fig. 6, the locations of pin and slot may be reversed, and slot 24 may be formed in valve stem 23 and in 25 supported in sleeve 19. The operation in either case is thesame.

Depending from valve. 21 is a stud 6 suppo a pair of l t. i ll v.1

w1pers 27 f 1.

ing the valve-seat 28 formed in the base ortion 13 of the valve cage 12. In Fig. 1 t iese wipers are shown pivoted to the stud shaft 26 by means of pin 29 passing through wiper jaws 30. The weight of the wipers at their ends is believed to be suflicient to cause the wipers to ride over the valve-seat 28 with a pressure great enough to scrape off any matter which might accumulate upon the valveseat. Should the weight alone of the wipers be found insuflicient for this purpose, springs 31 maybe secured to the wipers with their free ends pressing against stud shaft 26 to further urge said wipers with increased pressure against the valve-seat. By locating the ends 32 of the wipers forwardly of the body portions thereof, the matter scraped from the valve-seat will be directed downwardly through the discharge nozzle.

In certain cases it may be desirable to k'ee the discharge opening clear of parts exten ing entirely below the valve member. To this endl have shown in Fig. 7 a modified form of mechanism in which valve 21 is hollowed out to receive a pair of valveseat wipers 27. supported within same by means of a shaft 26 and held by supporting pin 29 The wipers are held for rotation with the valve by means'of suitable jaws 34 between which said wipers play. In this embodiment, only the scrap ng end portions 32 of wipers 27 rotrude beyond the valve-member 21 T e wipers are pivotally supported on yoke 33 by pins 35, or the like, and hang normall with their scraping end portions 32 in t e path of valve-seat 28*,but are so proportioned as to weight anddimension that upon movement of the valve member 2l 'downwardly to valve-seat 28 the scraping end portions 32 of the wipers will angage the valve-seat with a pressure having its source in the weight of the mass of material in the wipers located on one side of a vertical plane passing through the longitudinal axis of respective wiper pine 35.

In this form of valve, the valve stem 23 is cylindrical with slots 24 in its walls for engagement with pins 25 in the valve-supporting and locking sleeve 19. The sleeve 19 is threaded for reciprocation within the housing 17 and is perforated at 36 to receive a polygonal stem portion 22 of operating shaft 20.

In operation, assuming the valve to be in locked closed osition shown in Fig. 4, the operating sha t 20 is rotated to open the valve carrying with it sleeve .19. Said sleeve urged by the rotating shaft 20, threads ing 17, and recedin tinues to rise until t e bottoms of slots 24 of the sleeve engatgg pin 25 in the valve stem 23. During 's periodof operation yoke member 33 mounted on stud the valve 21 has not left its seat 28 but has continued to grind therein, although the sleeve 19 has risen to a point where the in engages the bottom of the slots 24. Furt er rotation of shaft 20, and continued upward movement of sleeve 19 with pin 25 nested in in the bottoms of slots 24, will cause valve 21 to be lifted from its seat and carried upwardly to the full open position shown in Fi 1.

uring the opening movement of the valve, the valve-seat wipers 27 will be carried upward in their folded position on stud shaft 26 until they reach valve-seat 28, when they will unfold within the larger area of the valve-cage 12 and ride w1th their ends upon the valve-seat 28.

U on reverse movement of operating sha t 20, sleeve 19 will move downwardly from the full open position shown in Fig. 1, carrying with it valve 21 and wipers 7, all of the moving parts continuin to rotate until they have reached the full 0 osed position shown in Fi 4. During this eriod of movement, an prior to the seatmg of valve 21, the wipers 27 will have swept the valve-seat 28 clear of all accumulated matter, whereupon continued downward move ment will cause said wipers to be drawn into the more restricted area of the discharge nozzle and retracted.

Upon reaching valve-seat 28, the valve 21 will grind therein until the upper ends of slots 24 in the downwardly moving sleeve engage pin 25 in the valve stem 23, or until the lower end of sleeve 19 engages the up or side of valve 21.

hat I claim is:

1. In a tank discharge outlet valve mechanism including a valve seat, a reciproca-. tory valve member, a relatively reciprocatory locking member for said valve, and

means carried by the valve for wiping said valve seat prior to the seating of said valve, said locking member bein adapted to subsequently lock said valve in its seat.

2. In a tank discharge outlet "valve mechanism includin a valve seat, a reciprocatory valve mem er having a depending stud shaft, and a pair'of valve-seat wipers carried b said shaft and adapted to be re tracte upon downward movement of said valve.

said housing and having a portion wit the same, a valve member, and a reciprocatory valve supporting and locking member threaded into said housin and having its way upwardly within the houstelescopic en agement with bot valve memfrom valve 21 conber and sha t,

said shaft, locking member and valve being held aga nst relative rotation only.

4. The combination in a tank discharge ill!) outlet valve mechanism comprising a housrotation throughout their range of move- 10 ing, of an operating shaft supportediupon ment. said housing and having a portion within in witness whereof I have hereunto set the same, a valve member, and a recipromy hand in the presence of two witnesses.

5 catorc valve supporting and locking member t readed into said housing and having. OSCAR HOGHBERG. telescopic engagement with both valve mem- Wimesses: her and shaft, said shaft, locking member WM. K. AUcmNcLoss,

and valve being connected for simultaneous Lnorom ALMQUl'ST.

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