US1526978A - Reserve-fuel valve - Google Patents

Description

.Feb, 17, 1925. 1,526,978

w. E. HARVEY RESERVE FUEL VALVE Filed July 5l, 1924 W- EHAFn/EY,

Patented Feb. 17, 1925.

UNITED "STATES WALTER E. HARVEY, OF MERIDIAN, MISSISSIPPI.

RESERVE-FUEL VALVE.

Application filed July 31, 1924. Serial No. r7.9.9,394.

To all whom it may concern:

Be it known that I, WALTER E. HARVEY,

a citizen of the United States, residing at Meridian, in the county of Lauderdale and State of Mississippi, have invented certain new and useful Improvements in Reserve Fuel Valves, of which the following is a specification, reference being had therein to the accompanying drawing.

The present invention relates to reserve supply devices for use with liquid tanks for keeping a partial supply of the liquid in reserve, and it is the primary ob'ect of the invention to provide a novel an improved reserve valve construction for tanks wherein the liquid is drawn up through the top of the tank.

The device is intended especially for use in the gasolene or fuel tanks of automobiles for holding in reserve a quantity of fuel in the tank, so that when the main lsupply is exhausted, a sufficient quantity will be held in reserve, to enable the automobile to proceed to a garage or service station for replenishing the supply of fuel in the tank, thereby avoiding the annoyance and inconvenience resulting from the entire exhausting of the fuel at a distance from a source of supply.

The device, however, can` be used for other purposes also.

Another object is the privision of a re serve valve structure comprising a novel assemblage andconstruction of the component elements, whereby the device is practical, serviceable and efficient in use.

vWith the foregoing and other objects in view, which will be apparent as the descriptio-n proceeds, the invention resides in the construction and arrangement of parts, as hereinafter described and claimed, fit being understood that changes can be made within the scope of what is claimed, without departing from the spirit of the invent-ion. i

`'lhe invention is illustrated in the accompanying drawing, wherein Figure 1- is a view, partly in side elevation and partly in section, of the device as positioned in the tank.

Fig. 2 is a vertical median section of the upper portion of the device taken on the line 2-2 of Fig. 3.

Fig. 3 is a horizontal section on the line 3-3 of Fig. l.

Fig. 4 is a horizontal section on the line 1 -Ll of Fig. 1.

A chambered head or easing `11 is provided to be secured on the top of the tank 12, and has a depending boss 13 to extend through an opening in the top of the tank, said head 11 being soldered or otherwisesecured on the tank. The head 11 has a tubular extension 14: at one side for the connection of the tubing or conduit through which the liquid is pumped or drawn from the tank, the passage of said extension coml municating with the chamber of the head. A bonnet 15 is screw-threaded within the upper portion of the head 'i' to close the chamber, and a plug or bushing 16 is screwthreaded within the bottom of the head, the bottom of the head and boss 13 having a screw-threaded opening to receive said plug or bushing. The bushing has a iiange 17 to seat on the bottom of the head and an upstanding boss 18 of angular outline for the engagement of a wrench for turning the bushing in applying and removing it. When the bonnet 15 is removed, the bushing 16 can be unscrewed and removed upwardly from the head.

Vertical concentric tubes 19 and 20 are disposed within the tank, and the outer tube 19 extends upwardly through and is soldered or otherwise secured to the bushing 16 so that thel tube 19 is carried by the b-ushing as a unitary part therewith. The tube 19 extends above the boss 18 to the bonnet 15, and is provided between its upper end and the bushing with an arcuate slot 21. A nipple 22 is engaged in the inner tube 20 and is disposed within the slot 21. Said nipple serves three purposes. First, it provides a port `establishing communication between the chamber of the Cfr head and the passage of the tube 20; second, it limits the longitudinal movement of the tube 2O in the tube 19; and third, the nipple provides a stop to limit the turning movement of the tube 20.

rlhe inner tube 20 extends upwardly through a central opening in the bonnet 15, and said bonnet has au upstanding boss 223 through which the tube 20 extends. A stem 21 is secured Within the upper terminal o't the tube 20 for receiving a handle 25, which is secured on the stem and tube by means ot a nut 26 threaded on the stem, although other securing means for the handle can be used. The stem 24 also closes or plugs the upper end ot the tube 20.

A' gland or packing nut 2T is screwthreaded on the boss 23 and contains packing surrounding the tube 20, to prevent leakage through the bonnet 15 along the tube 20.

rlhe tubes 19 and 2O extend close to the bottom of the tank, and a member 28 is titted over the lower terminal of the tube 19 and is soldered or otherwise secured to said tube. rihe member 28 has the opposite ports 29 and 3() which extend through the tube 19 also, as seen in Fig. 4, and the member 28 has a passa-ge or tubular extension 31 extending upwardly trom the port 30 to a desired distance or height above the bottom ot the tank. The tube 20 has the ports S2 to register alternately with the ports 29 and 30 tor establishing communication between the tank and the tube 20.

Ordinarily, the handle 25 is turned to normal position, as seen in Figs. 1 and 2, with the nipple 22 contacting with one end ot the slot 21, to bringl one port 32 into registration with the port 30, so that the tube 20 communicates with the interior of the tank by u'ayoi the upwardly extending passage 31, rllhe liquid from the tank therefore flows down through the passage 3l and ports 30 and 32 into the tube 20, from which it flows through the nipple 22 and extension 11i into the tube or conduit which carries the liquid eti', the liquid being drawn from the tank by a pump or by a vacuum tank such as used in automobiles. Should the level of the liquid in the tank fall to the upper end ot' the passage 31, without the tank having been reill'ed, the liquid in the tank below the upper end of the passage 31 cannot pass out, and is therefore held in reserve tor an emergency or" this kind, especially when a warning is desired that the liquid in the tank is nearly exhausted. The flow ot liquid from the tank will therefore stop. Then, by turning the handle 25, the tube 20 is turned to bring one port 32 into registration with the port 29 which opens into the tank lower down than the upper end of the passages 31. Accordingly, the reserve quantity ot liquid in the tank can be drawn therefrom through the port 29 and tube 20, thereby permitting a limited supply of liquid to be used until the tank can again be iilled.

rlfhe device can be readily t-aken apart for purpose ot cleaning, repair or replacement. Thus, by removing the handle 25, the bonnet 15 can be unscrewed from the head 11 and removed. Then, by unserewing the bushing or plug 16 from the head 11, the tubes i9 and 20 are readily lifted with the bushing and withdrawn from the tank, the member 28 being carriedcby the tube 19 and passing through the opening in the head 11. rEhe head 1l is the only part which is secured to the tankY permanently, and the removal oi the parts-of the device does not dist-urb the connection of the tube or pipe with the extension 1%.

Having thus described the invention, what is claimed as new is 1. A valve structure otl the character described including a head havngpa chamber and an outlet, concentric tubes havingl ports toregister with one another for controlling the flow throughthe inner tube, said tubes entering said chamber, the outer tubeA having a slot in said chamber', a nipple carried by the inner tube in said slot to limit the relative movement ofthe tubes and to establish communication between said chamber and inner tube, and means tor moving one of said tubes.

2. A. valve structure of the characterdescribed comprising a head having a chamber and an outlet, concentric tubes having ports to register with one another, said tubes entering said chamber, the outer tube being connected with the head so as not to turn normally, means for moving they inner tube to move the ports into and out ot registration, the outer tube haviingY a slot in said chamber, and a nipple carried by the inner tube within said slot to limit the movement ot the inner tube and to establish communication betwen the inner tube and chamber.

3. A valve structure of the character described comprising a head, a removable bonnet securedV to the head, a removable bushing` secured within the head, said head having a chamber and an outlet betweenV said bonnet and bushing, concentric tubes having ports to register with one another, the outer tube extending throughand being secured to .the bushing, the inner tube having a portion extending through the bonnet and provided with means t'or moving the inner tube, the outer tube having a slot between the bonnet and bushing, and a nipple carried by the inner tube within said slot to limit the movement ot the inner tube'and to establish communication between the inner tube and said chamber.

. a. A valve structure ot the character described comprising a head having a chamber and an outlet, a removable bushing secured down within the bottom portion of the head,

a removable bonnet secured on the head, vertical concentric tubes having ports near their lower ends adapted to register With one another, the outer tube extending through and being secured to said bushing, the inner tube having a portion extending upwardly through the bonnet and provided with means for turning the inner tube, the outer tube having an arcuate slot between Ythe bonnet and bushing, anda nipple car- 10 In testimony whereof I hereunto aiX my '15 signature.

WALTER E. HARVEY.

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