Патент USA US2110941код для вставки
Marçh 15,v 1938. A. o.- PAYNE 2,110,941 TUBE FOR TRANSFERRING FLUIDS AND VALVE MECHANISM THEREFOB Filed March '7, 1935 mw_Ein@-wIFMa. Patented Mar. 15, 1938 2,110,941 UNITED STATES PATENT OFFICE ~ 2,110,941 TUBE FOB. TBANSFERRING FLUIDS AND VALVE MECHANISM THEREFOR ' o. Payne, East si. Louis, nl. Application March 7, 1935, Serial No. 9,722 6 Claims. (Cl. 226-127) My invention relates to tubes for transferring the mechanism outlined herein and covered by fluids and to valve mechanism therefor and more particularly to such devices for transferring fluids from a source of supply to a place of discharge 5 such as a tank', tube, or other receptacle to bei ñlled to a predetermined level or to be ñlled with a predetermined amount of ñuid. 'I‘he general type of device to be described here in is similar in many respects to those described lo and claimed in patents previously issued to me and in applications which are now pending in myäname in the Patent Oflice.v However, the device of the instant application is one which is simple and, therefore, may be manufactured l5 easily and cheaply and, in addition, the present device differs in other respects, as set forth below, from the various embodiments of my basic inven tion. In a device embodying my present invention „o the trigger mechanism for cooking the valve into open position has been dispensed with and the structure is greatly simplified. The valve is moved into open position by a part engaging the mar ginal surfaces of the receptacle adjacent the .25 opening through which it _is filled. Also, in em bodiments of my device, as heretofore used by me, the passage through which the fluid _passed was constricted to form a Venturi >opening soÁ that the increased rate of ñow of the fluid through 30 such constricted opening would cause a. suction . which,> when the port for an equalizing ñow of air was closed, would cause the valve to close by movement of a diaphragm. In embodiments of the claims. In the drawing, wherein similar characters are used to designate 4similar parts, Fig. 1 is a sec tional vicw through the nozzle; Fig. 2 is a cross section along thel line 2-2 in Fig. l; Fig. 3 is a section along the line 3_3 in Fig. 2; and Fig. 4 is a partial section along the line 4-4 in Fig. l. Referring to the figures the nozzle shown therein as embodying one form of my invention 10k comprises a. casing I which, for cheapness of manufacture, is preferably cast in one piece'so as to include an upper cylindrical extension 2 forming a valve chamber communicating with the hollow interior 3 of the casing proper and 15 a lower extension 4 from which extends the out let tube 5 and its axially movable sleeve 6, for the purposes outlined below. The casing may _be made of any suitable material, but is prefer ably cast of aluminum or other durable and light 20 metal. . Arranged, preferably, centrally of the casing in thehollow interior 3 is a block 'I which is drilled to receive a freely rotatable shaft 8. The shaft near the inner end thereof is cut or otherwisev A25 formed with a reduced cam surface 9. The shaft 8 is maintained in'position and prevented from longitudinal movement by a pin IB projecting beyond the circumference thereof at diametrically opposite points positioned between the shoulder 30 II formed on the block 'I and a nut I2 threaded into the body of the casing I. The nut I2 pref-` erably has a recessed portion to receive a pack this invention the valve opening has the seat ~ ing material such as graphite as indicated at I3 35 thereof formed to provide a constricted opening through which the iiuid passes and the velocity of the fluid passing through the valve opening and past the valve seat causes a suction similar in all respects to that heretofore caused by the 40 Venturi tube. ' Furthermore, often it is desirable that the valve be automatically shut off to prevent further flow of iìuid when a predetermined amount of fluid has been transferred tothe place of dis 45 charge and, therefore, my present invention pro vides means for so stopping the ñow. In the accompanying drawing I have shown my invention to acomplish the above and other objects as embodied in a filler spout nozzle formed 50 as a part of a tube for dispensing liquid such as gasoline into the fuel tants of an automobile. However, it is' to be understood that this em It» “ment may "ne used for o " r purposes and , o lon r embodimeï: f " iv its broad g5 aspect for further i es may be .made to include and a packing nut I4 threaded into the inner 35 surface of the nut I2 whereby the packing ma terial may be, conñned and whereby fluid passing through the nozzle will not ñnd its way into the bore of the block l. In manufacturing the de 'vice the shaft 8 and its packing may be assem- 40 bled and the unit may be inserted into place by turning the nut I2 into the threaded portion of the casing body. Opening between the valve chamber 2a in the extension 2 of the casing and the hollow interior 45 3 thereof is a valve opening I5 which has the sides thereof -inclined inwardly in the direction of flow therethrough or which is otherwise formed toprovide a constricted opening through which passes fluid being dispensed by the nozzle. Pref erably the valve op is formed so that ‘the constricted part p1. tents a seat for a valve I6 of the usual type. The valve I6 is carried by a guide rod I1, one of which is slidably mount ed in a boss I8 and the other end of which ex» 5,.' 2, 2,110,941 tends into contact with the cam 9 formed on the shaft 8. The’valve is maintained in closed position by a spring I9 positioned between the moved outwardly the end 44 will be moved in` a rear face of the valve and a removable plate 20 reversed direction. v threaded into the outer end of the extension 2. Positioned on the side of the casing adja It readily will be seen by examination of Fig. -1 cent the end 44 of the bell crank is a hammer that when the shaft 8 is rotated in a clockwise> direction the cam 9 vwill move the guide rod I1 to carry the valve away from its seat and into 10 be moved outwardly -in a direction away from the, center of the casing and when the diaphragm is open position. _ ~ " y ' _ The means forvso rotating the shaft.8 to open the valve iscontrolled by movement of the slid ing sleeve 6 along the outlet tube 5 of the nozzle. The tube 5 is threaded in the body of the casing 15 I as at 2| and the`»\lower extension4 of thecas ing is vbored out to provide an annular opening around the tube. The inner end of the sleeve 6 isprovided with a shoulder 22 and the sleeve is prevented from moving too ` far outwardly 20 along the tube 5 by a nut~23 threaded in the ex 45 .which is freely rotatable about the shaft 8 and which is, in this embodiment, normally im pelled in: a clockwise direction by a spring 46. ‘I‘he hammer 45 has an inwardly projecting` lug 10v 41 arranged to contact the’ finger‘30 and carry it away‘from` engagement with the pin 3|. Like wise, the outerend of the hammer -45 is notched as at 48`to receive the end 44 of the bell crank whereby the hammer will be held away- from the 15 finger 30 and contact `will be prevented between the hammer and the finger. Having thus completely described the parts of my device its operation as now to be set forth will be understood. `When it is desired to ñll the tension. A spring 25 normally holds the sleeve outwardly along the tube, but when the tube is tank 26 with this‘embodiment of my invention the diaphragm will be in normal position and the inserted in a tank 26 or other receptacle to be iilled the marginal surfaces of the tank inlet 21 end 44 of the bell crank will, therefore, be in v 25 engage an annular flange 28 formed on the sleeve position nearest the center of the casing. The,l >hammer 45 >is moved in a counter-clockwise die 25 rection by -manually turning the grip 49 untilV and move the sleeve upwardly along the tube or, that is, move the sleeve-ina direction towards the ' the notch 48 engages the end 44 of the bell. crank , casing. The link 29 has a. notch therein to receive the shoulder 22 of the sleeve, as shown in Fig. 2, and as the sleeve is moved in the diretcion indicated the link 29 is moved upwardly and, in turn, the finger 3U pivotally attached to the. link is likewise moved. The finger 39 has a notch `therein 35 adapted to engage the pin 3| extending outward ly from the shaft 8 and as the finger is moved whereby the hammerv will be maintained in cocked position. The lower ends of the tube 5 and the sleeve 6 are then inserted into the tank 30 end, as described above. When the flange 28 en gages the marginal surfaces 21 the sleeve 6 will be moved to move the link 29 and finger 3|] to rotate the shaft 8 and, thereby, to ‘move the valve I6 into open position. Flow of iiuid through 35 the nozzle will then commence and such flow upwardly the‘notch engages‘the pin and rotates through the constricted valve opening I5 will the shaft 8 to move the valve I6 into open posi cause a suction through the port 39 in that por tion. Preferably, a spring‘32 'is provided to hold tion of the diaphragm chamber 33 onone side of 40 the finger 3D in such engagement with the pin 3 I." the diaphragm‘ 36. However,A such suction will 40 Therefore, when the nozzle is put into position be equalized by air entering the chamber through to fill a tank or other receptacle> the valve will> the duct >lill.~ However, when the level of fluid be opened automatically and flow through the in the tank 26 has reached a point where it will nozzle will start. However, as described above, it cover'thev lower end of the duct 40 in the en 45 is desirable that' the flow be stopped when the larged part 4| the equalizing ñow of air will be 45 level of fluid at the place of discharge has reached stopped and further suction through the port a predetermined point or when a predetermined 39 will move the diaphragm 36 and, in turn, quantity of huid has `been dispensed and the will move the bell crank outwardly away from engagement with the hammer 45. The hammer mechanism for controlling the flow automatical 50 ly upon those conditions is as follows: Formed at one side of the casing | is a dia phragm chamber 33 positioned between the par tition plate 24 and a coverplate 35. Mounted in the chamber is a diaphragm 36”, preferably, of 55 metal, which is maintained inÍ position by a’ring will then be impelled by its spring to move in a 50 clockwise direction and the lug 4l striking against the finger 30 will carry the finger out of engage-. ment with the pin 3| and a spring 50 will move the shaft 8 in a counter' clockwise direction whereby the camv 9 will be moved to allow the 55 valve I6 to be closed by the spring I9. In this manner, flow through the nozzle will be stopped. 31 fastened to the casing by stud screws 38 or by any other suitable expedient. In this ern bodiment I have shown the diaphragm in its ‘ Of course, it will be understood that if through simplest form, but it may be balanced between accident the nozzle fallsaway from the recep 60 springs, as heretofore taught by me, or may be _ tacle being ñlled the sleeve 6 will be moved down of any other form. Leading from‘the chamber wardly by the spring and in turn, the link 29 and 33 to the constricted valve opening I5 is a small its carried finger 39 will be moved downwardly port 39. Also, leading from the chamber on the out of engagement with the pin 3| and the shaft same side of the diaphragm is an air tube 40 8 will be rotated by its associated spring to al low the valve to close. 65 which terminates at its lower end in the enlarged Flow may be stopped similarly when a given portion 4| of the sleeve 6 and at the point where when the tube is inserted in a receptacle to be amount of fluid has been dispensed into the tank filled the desired level of fluid in said receptacle and to accomplish this result a dispensing pump, has been reached. Fastened, preferably at the not shown, is arranged so that when a predeter 70 center of the diaphragm 36 is one end of a bell mined amount of fluid has been metered therecrank 42 and the other leg of which extends through a valve `will be opened to allow air to flow from any suitable source through the tube through an opening 43 in the casing past the op posite side facethereoî. When the diaphragm is 5| into the diaphragm chamber 33 on the outside of the diaphragm 36 and such compressed air will moved inwardly, the end 44 of the bell crank op 75 posite the end attached to the diaphragm will 60 65 '70 _ move the diaphragm to accomplish the same re' 75 3A _ 2,110,941 sult as accomplished by suction through the port 39. - t From the above description it readily will be seen that I have provided by my present inven tion a simpleand eiiicient transfer tube and valve mechanism therefor. However, ' it should be borne in mind, as stated above, that devices em bodying various forms _of my invention may be made in various ways wherein the shape and ar 10 rangement of the parts' may be changed within wide limits without deviating from the spirit of the claims as set forth below. What I claim as new and desire to secure by Letters Patent, is :--l1. The combination with a tube for use in transferring fluids from one place to another, of a valve mechanism for controlling the flow of fluid, a diaphragm and a chamber associated therewith, said valve mechanism including a valve 20 and a valve opening constricted in the direc tion of flow therethrough, said constricted open ing and said chamber being in communication with one another whereby air will be drawn from said chamber during the flowV of fluid ‘through 25 said tube, said chamber also having an air inlet thereto, a duct leading from said air inlet to the air through said inlet duct and into said cham ber will be prevented, and an operative connec tion between said diaphragm and said valve whereby when air is pre vented from passing into said chambervsaid diaphragm will be moved to close said valve. ` ` 4. The combination with a tube for use in transferring fluids from one place to another, ,of a valve casing having an outlet tube extend ing therefrom and containing a valve mechanism 10 for controlling the flow of fluid through said tube, said valve mechanism including a valve, a rotatable shaft having a cam formed thereon and positioned and arranged whereby movement of said camÁ will move said valve into open 15 position, a spring arranged to- tend to move said shaft to allow said valve to close, a sleeve slidably mounted on and surrounding said out let tube and adapted to engage the marginal surface of the receptacle into which said fluid 20 is transferred whereby said sleeve will be moved by such engagement, a link extending between said sleeve and said shaft whereby said movement of said sleeve will rotate said shaft to move said valve into open position, and means operating 25 at a predetermined level of fluid in said recep tacle for moving said link out of engagement place of discharge and arranged whereby when the fluid at said -place of discharge has reached a ' with said shaft whereby said shaft will be ro predetermined level the lower endv of said duct tated by said spring to allow said valve to close. 5. The combination with a tube for use in will be closed and the continued iiow of air into 30 transferring fluid from onel place to another, of said chamber- will be prevented, and an _opera valve casing having an outlet tube extending tive connection between said diaphragm and said atherefrom and containing a valve ' mechanism valve whereby when air is prevented from enter ing said chamber said diaphragm will be moved for controlling the flow of fluid through said 35 tube, said valve mechanism including a valve, a 35 to close said valve. 2. The combination with a tube for use in valve stem extending from said valve, a rotatable shaft having a cam thereon engaging said valve i transferring a fluid fromone place to another, of a valve mechanism for controlling the flow of stem and arranged whereby movement of said fluid, a diaphragm and a chamber associated cam will move said stem to move said valve into open position, a`sleeve slidably mounted-on and 40 therewith, said valve mechanism including a valve surrounding said outlet tube and adapted to en ~seated in a constricted opening, said constricted gage the marginal surface of the receptacle into opening and said chamber being in communica tion with one another whereby airwill be drawn which said fluid is transferred lwhereby said from said chamber during the ñow of ñuid sleeve will be moved by such engagement, and through said tube, said chamber also having an an operative connection between said sleeve and 45 inletduct leading thereto and through which ' said shaft whereby said movement ofv said sleeve will rotate said shaft to open said valve. 6. The combination with a tube for, use in transferring fluids from one place to another, when a predetermined level is reached at the of a valve casing having an outlet _tube extending 50 place of discharge of said fluid the continued ~so flow of air through said inlet duct will be pre- , therefrom and containing a valve mechanism for vented, and an operative connection between controllingtheñow of ñuid through said tube, said said diaphragm and said valve whereby when air valve mechanism including a valve, a valve stem extending from said valve, a rotatable shaft is prevented from passing into -said chamber having a cam thereon engaging said valve stem through said inlet duct said diaphragm will be 55 and arranged whereby movement of said cam moved to close said valve. ’ 3. The combination with a tube for use in will move said stem to move said valve into open transferring ñuid from one place to another. position, a spring arranged to tend to move said of a valve mechanism for controlling the ñow of ` shaft to allow said valve to close, a sleeve slidably ñuid, a diaphragm and a chamber associated mounted on and surrounding said outlet tube 60 60 therewith, said valve mechanisml including a and adapted to engage the marginal surface of"_ the receptacle Ainto which said fluid is- trans valve and a valve _opening constricted in the ferred whereby said sleeve will be moved by such j direction of ñow of iiuid therethrough, said con engagement, a link extending between said sleeve stricted opening and said chamber being in com and said shaft whereby said movement of said 65 munication with one another whereby air will sleeve will rotate said shaft to move said-valve be drawn from said chamber during the ñow of into open position, and means operating at a ñuid through said tube, said chamber also having an inlet duct leading thereto and through which predetermined level of fluid in said receptacle for moving said link out of engagement with said duct air can `enter said chamber, and said inlet shaft whereby said shaft will be rotated by said 70 duct being -positioned and arranged whereby 70 v when a predetermined level is reached at the spring to allow said valve to close. duct air may enter said chamber, and said in let duct being positioned and arranged whereby place of discharge of saidñuid continued iiow of - AMOS O. PAYNE.