US2627282A

US2627282A - Lever hose sand valve

Info

Publication number: US2627282A
Application number: US159342A
Authority: US
Inventors: John F Comer
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-05-01
Filing date: 1950-05-01
Publication date: 1953-02-03
Anticipated expiration: 1970-02-03

Description

Feb. 3, 1953 J. F. COMER 2,627,282

LEVER HOSE SAND VALVE Filed May 1, 1950 2 SHEETSSHEET 1 Fl'gJ 28 llnh M I ll 48 k l 24 50 3 142 32 22 is Fig.2 I? r Ir '9 26 w c 1 L. .35 42 fi ll "W2C:

32 4 238;.36 I8 46 48 i i /4 Fig. 7

John F. Comer 1N VEN TOR.

Feb. 3, 1953 J. F. COMER 2,627,282

LEVER HOSE SAND VALVE Filed May 1, 1950 2 SHEETS-SHEET 2 5 Fig. 3

John E Comer INVENTOR.

Wyn/way 3m Patented Feb. 3, 1953 EID STATES PAT-SEN T "OFFICE LEVER/HOSE SAND VALVE JohnrF. Comer, MechanicvillmsN. Y.

.ApplicationiMayl, 1950,.Serial No.159,342

" 4 Claims. 1

This invention "relates to improvementsin a "valve assembly" andan' operator therefor andhas particular utility'in connection with devices'ifor supplying" sand to be. received (in the. sand boxes of" railway apparatus.

.An object .t'o'f this invention is .to "provide an improved imeansfor .operating "a valve fat 'the end o'fra ttube,.: said tube bein'g adapted ..for connection with the flexible chose extending from the hopper cor otherssand 1 box .type' receptacle,

said means having incorporated therewith the feature of Ian tovehwehterilocking arrangement whereby, whenthe' valve member; is .in'the closed condition,. ittc'annot .open until positively operated to the :open 'condition.

Another object "56f ithis .invention is to iincorpoi-ate .in the T'foregoing means :a .safety ..feature whereby theha'n'dleffor operation of the valve member? is 'dispose'd'innested relation. between a pair or lpitmaniro'ds .so as .-to prevent. inadvertent openingrofqthe valveimember. There isr-also provided a 'stop which" limits-the travel of. the handle toward the'tube at'the'time that the handle-is depressed toisuch condition that thevalve member isin the tube-closing position and the handle 1 is. in nestedrelation withlthe pitman rods.

Ancillaryobjects and features of importance will become apparent in following the descriptionof the illustrated form of the invention.

In the drawings: Figure 1 is an elevational. side viewof .the device;

Figure 2 is .a top view of the device of Figure 1;

Figurefifisalongitudinal sectional view of the substantially iomtheline 56-16 of'iFigure .4 and in the direction of the arrows; "and Figure 7 is a fragmentarysectional view taken substantially onthe-line' I"l of Figure l and in the direction of the arrows.

'Thelillustrated assembly. is 5 adapted to be used at the .end of abuse which ::conducts fisand to the sand boxes .ofurailway equipment. It is I important thatlnosand drip from the hoseiafter the valvekhasbeen closed'inasmuoh as the blowerr. 'on certain types :of railway equipment, as

diesel engines, will draw the loose sand thereinto, causingflinjury to the machinery of the engines. It is also important that the valve assembly be capable of proper operation during all weather conditions, as when icing is prevalent. It is fixedto theexteriorsurface 'of the tube. bracket has anopening therein andone end of andremote .irom the bracket (8. .ceivingrmember Misfixedto .one side of the handle 40 .lso .that .it maybe easily reached and ;operated by-agperson.

equally important thatthe valve'assembly-be satisfactorily operative'insofaras safety is conearned whereby the user of the device' will not injure his fingers.

"The instant invention has been developed'with ia'view to theseandother "features of practical importance. The tube lflis of usualconstruc- .tion and hasa beveled-end opening for the discharge'of sand therefrom, the tube being adapted to be'connectedto a conduit or hose extending 'from;a'san'd box. A. pairofguide rails l2 and I4,"respectively, are fixed to the beveled endof the tube I 0 which slidably mount the valve mem- .ber I6, which is operable to open and close the discharge end of thetube.

A bracket i8 is welded or otherwise rigidly This the lever 20is disposed in this "opening. Said'end .of the lever is mounted Jforpivotal movement by means oflthe pivot pin 22 whichpasses through openings in the bracket l8 and through'an. opening in one end of the leverzfl. The opposite end of the lever 20 is'pivotally connected to the valve member l6 through the medium of the pair of

links

24 and 26 which are pivoted by means of the pin 28 to the end of the'lever 20 opposite the end whiehis pivoted to the bracket 18. A block .30 is welded or riveted or otherwiserigidly fixed to one surface ofthe valve member llfiand 'ha'sthe pivotjpin32 passed therethrough, this .pivotjpin also passing through thefree ends of the

links

24 and 26.

A pair of pitman rods 34 and 36 'arepivoted by. means of the pin 38 to the lever 26 intermediate its ends, said-lever being curved (Figure 1) and thepin passes through the portion thereof which is most distant from thetube It.

An. arm tflfforming-a handle is pivoted. at one end to a support or bearing 42, said bearing 52 being fixed tothe outside surface of the tube It A hand re- The :ends or the :two t'pitman rods 24 i and as which are opposite those pivoted to the lever ZGarepiVOted-by means-oi the pivot pin 46 to thehandle fi intermediate the ends of the handle andadj acent the, pivotpin t8 which pivotally at- 'taehesit'he handle .49 to the bearing'fl.

The handle :49 is of "such ?width that it fits. in

.nestedrelati'on with the.two pitman rods t l and 35 when: it is inithe downp.osition, the fdown position l-correspondin'g to 1 the "valve member iii closing condition for the tube l9. Inasmuch as the lever 22! is smoothly curved, as disclosed in Figure 1, and the bracket I 8 and bearing 42 are of appreciable height, there is a clearance be tween the

pitman rods

34 and 36 and the handle 40 with respect to the outer surface of the tube l whereby the user of the device may easily grasp the tube in order to move it from one place to another and whereby it will be impossible for the user of the device to injure his fingers by having the operator or operator elements press the fingers against the outer surface of the tube l0.

An upwardly extending projection forming a stop 50 is fixed integrally with the bracket l8 and may be considered as forming a part thereof. This stop is engaged by the handle 40 (see Figure 3) to provide a limit for the pivotal movement of the handle toward the tube [0. It will be noted that the lower edge of the handle is slightly below the lower edges of the

pitman rods

34 and 36 when the valve member I6 is in the closed condition. A definite over-center condition is thus arrived at in connection with the pivotal points of the handle 40, the pitman rods 34 and 36, and lever 20. It is then, of course, impossible to open the valve member It by pushing or pulling or attempting to slide the valve member, it being necessary first to positively operate the handle 40. Once the handle 39 has been pulled, preferably by the handle grip member 44 a small amount, then it is possible to to complete the operation by pushing the valve member 16. 7

Having described the invention, what is claimed as new is:

1. A sand valve assembly comprising a tube having a valve member at one end and means secured to the tube supporting the valve member for guided movement, an operator for said valve member comprising a bracket secured to said tube, a lever pivoted at one end to said bracket, a link pivoted to the opposite end of said lever and pivotably connected to said valve member, a bearing secured to said tube remote from said bracket, a handle pivoted at one end to said bearing, a pair of pitman rods pivoted to said lever between its ends and to said handle intermediate its ends so that when said handle is pivotally actuated, the valve member is operated through the movement of said link, lever and pitman rods, said pitman rods being spaced apart to form a pocket accommodating said handle which is adapted to be nested therebetween when said pitman rods and said handle are substantially parallel, and a stop secured to said tube beneath said handle to limit pivotal movement of said handle toward the tube andthereby define the closed position of the valve.

2. A sand valve assembly comprising a tube having a valve member at one end and means secured to the tube supporting the valve member for guided movement, an operator for said valve member comprising a bracket secured to said tube, a lever pivoted at one end to said bracket, a link pivoted tothe opposite end of said lever and pivotably connected to said valve member, a bearing secured to said tube remote from said bracket, a handle pivoted at one end to said bearing, a pair of pitman rods pivoted to said lever between its ends and to said handle intermediate its ends so that when said handle is pivotally actuated, the valve member is operated through the movement of said link, lever and pitman rods, said pitman rods being spaced apart to form a pocket accommodating said handle whioh is adapted to be nested therebetween when said pitman rods and said handle are substantially parallel, said lever being curved, and said curved lever and said bearing spacing said pitman rods from the outer surface of the tube to provide sufficient finger clearance, and the stop secured to said tube beneath said handle to limit the pivotal movement of said handle toward the tube and thereby define the closed position of the valve.

3. A sand valve assembly comprising a tube having a valve member at one end and means secured to the tube supporting the valve member for guided movement, an operator for said valve member comprising a bracket secured to said tube, a lever pivoted at one end to said bracket, a link pivoted to the opposite end of said lever and pivotably connected to said valve member, a bearing secured to said-tube remote from said bracket, a handle pivoted at one end to said bearing, a pair, of pitman rods pivoted to said lever between its. endsand to said handle intermediate its endls'so that when said handle is pivotally actuated, the valve member is operated through the movement of said link, lever and pitman rods, said pitman rods being spaced apart to form a pocket accommodating said handle which is adapted to be nested therebetween when said pitman rods and said handle are substantially parallel, said lever being curved, said curved lever and said bearing spacing said pitman rods from the outer surface of said tube to provide sulficient finger clearance, a stop fixed to the tube beneath said handle and providing a limit for the pivotal movement of said handle,

and said limit being the over-center position of the pivotal connection of the handle to the bearing with respect to the pivotal connection of said pitman rods to said handle to thereby lock the valve member in one position.

4. A sand valve assembly comprising a tube having a valve covering one end and means secured to the tube supporting the valve for guided V one another when the valve is in closed position to lock the valve in such position, and a stop secured to said tube beneath said handle to limit the pivotal movement of the handle toward the tube.

JOHN F. COMER.

7 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 645,403 McAdams Mar. 13, 1900 856,983 Nugent June 11, 1907 963,885 Frantz July 12, 1910 1,005,311 Rickertt Oct. 10, 1911 1,063,019 DeLaney May 2'7, 1913 1,333,357 White Mar. 9, 1920