US1711783A - Dispensing apparatus - Google Patents

Description

May 7, l1929. E. P.` HAYES DIsP-ENsING APPARATUS Filed June 1s, 1928 Ich Patented May 7, 1929.

` i iguana EDMUND P. HAYES, OF WICHITA, KANSAS,

ASSIGNOR TO HAYES EQUIPMENT IVLANU-r FAGTURING COMPANY, OF "WICHITA,- KANSAS, A CORPORATION OF KANSAS.

DISPENSING APPARATUS.

Application filed .Tune 13,

This invention relates to dispensing apparatus, andl with regard to certain more specific features, to liquid dispensing appara-tus for gasolinefilling stations and the like.

Among the several objects of the invention may be noted the provision of an improved and simplified cylindrical reservoir construction wherein certain glass enclosing cylinders are rendered less subject to breakage; and the provision of a device of the class described including means for obtaining a quicker level of liquid prior to dispensing. Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly comprises the elements and combinations of elements, features of construction, and arrangements of parts which will be exemplified 'in the structure hereinafter.described, and the scope of the application of which will be indicated in the following claims.

In the accompanying drawings, in which is illustrated one of various possible embodiments' of the invention,

Fig. 1 is a diagrammatic assembly view showing the general relationship of parts;

Fig. 2 is a vertical section taken through a reservoir, showing certain details; an'd Fig. 3 is a detailed section of a foot valve.

Similar reference characters indicate corresponding parts throughout the several views of the drawings. y

Referring now more particularly to Fig. l, there is illustrated at numeral 1 a support-y ing framework fora lower bowl casting or reservoir end member 3.` Thisframework also supports a double acting single cylinder reciprocating hand pump 5 whose discharge communicates by way-of a pipe? with a lill pipe 9 in the interior of said bowl 3 (see also -Fig 2). An adjustable edged overflow pipe 'll /is also positioned on the interior. of the bowl 3 and communicates with a connecting overflow pipe 13 leading back to a main supply tank 15. f

The tank 15 has its liquid supply in communication with the suction end of vpump 5 by way of aline 17 at the lower end of which is positioned a foot valve 19. The foot valve is detailed in Fig. 3, where is shown a casing 21 containing a poppet valve 23 operable to open upwardly when the pump 5 eifects a suction stroke and operable downwardly upon 1928.- Serial No. 285,147.

return stroke of the pump. This foot valve is adapted to prevent return of liquid to the tank 15. It will be understood that the pump 5 includes the usual suction and lift valves associated with such pumps which valves are also adapted to prevent return flow of liquid to the tank 15.

The bowl 3 is also provided with a night drain pipe 25 which leads back into connection with the overflow pipes 11, 13. This night drain pipe 25 is provided with a valve 27. lThe bowl 3 furthermore has the usual hose connection Q9.

One of the novel features of this invention regards the reservoir of which bowl 3 is y a part. This liquid reservoir comprises said bowl 3 having therein the fill and overflow pipes 9 and 11 respectively. Mounted on and in sealed relation with the bowl 3 is a glass cylinder or enclosing member 31. The glass cylinder surrounds the pipes 9 an'd 11. It is held down on the bowl 3, not in the usual manner by a plurality of external tie rods, but by means of a central tension cylinder or pipe 33 surrounding the central supplypipe or lill pipe 9. A

' The cylinder 33 is screwed into the bottom of thefbowl 3 and is provided with a screw cap 35 which pullsdown on an end casting or end member 37,' the latter engaging the upper edge of the cylinder or enclosing member 31. A suitable closure 39 is provided over certain openings. in the end casting 37. It is to be understood that the casting 37 does not engage the threads of pipe 33 but is longitudinally movable with respect thereto, wherebyv a clamping action may be' effected by the cap 35 so as to hold the glass cylinder 31 between the end casting 37 and the bowl 3. A suitable sealing means is used between the casting 37 and the glass container 31. A packing dam 41 is used within the cylinder 33 so that the clamping cap 35 is not depended upon for providing a gasoline seal.

The advantage of having the single tension member or pipe 33 instead of a pluralityv of tension members is that upon assembly, the skill of a workman in drawing upv a plurality of studs evenly is not depended upon to prevent uneven pressure on the edge of the glass cylinder' 31. Such uneven pressure has been found to be the cause of much cylinder breakage. A person by drawing up the cap 35 is enabled to automatically apply even pressure all around the edges ot the cylinder 3l. Rods 43 are vused for properly spacing a protective screen 45 vand not -lor tension purposes as vwill be comprehended when it is seen that they have no draw nuts at their upper ends,

Beside the above improvements, the use of the pipe 33 eliects other advantages. At its lower portions said pipe 33 is provided with openings 45 for permitting exit of incoming liquid from the lill pipe 9, whereby liquid enters the cylinder with a relatively undisturbed flow. Near its upper end the pipe 33 is provided with outlet openings 47 which are positioned an appreciable distance below the upper edge 49 ol? the lill pipe 9 and above the upper edge 51 of the overflow pipe 11.v Il valve leakage does occur in the present apparatus siphoning will be ell'ected during the period that the liquid level descends 'to the level of the openings 47 and, as will be shown hereinafter, this eliects certain advantages.

Heretofore descending pip-es, sleeves and the like have been used to ellect a gentle descent oit liquid but they have been vented above the upper edge oi the till pipe so as to prevent a siphoning out of the cylinder when the pump stopped, the idea being had in mind that the pump and other valves associated with the lill pipe might leak.

As stated above l place the elevation of openings 47 between the edges or" pipes 9 'and 1l. Hence after a filling operation with non-leaking pump and tooty valves, the liquid level -in the container drops down to thelevel oit the edge 51 of pipe 11. rllhe liquid level in the tube 33 will then stand at the same level as in the cylinder 3l.

It the valves happen to leak, then a siphoning return action through pipe 9 taires place until the level oi' the liquid descends to the level of the openings 47. Hence it willV be seen vthat the excess liquid has two exits trom the container, one through the overflow and the other by siphoning through the fill pipe 9, thereby shortening the time in which it takes to reach the proper level ot the elevation ol the edge 51 ol' the pipe 11.

Heretofore the positioning ol? the vent above the edge 49 of pipe 9 also resulted in sideward spurting oi: lluids through the vent due to the spreading action the stream but my openings 47 are positioned at points where the liquid has a natural downward travel and does not tend to spurt out. The arrows in Fig. 2 indicate how the liquid passes the opening without a tendency to spurt violently through them. This improved feature has resulted in the elimination of a delector member which was heretofore required to reduce the spurting action.

In view oi' the above, it will be seen that the several objects of the invention are achieved and other advantageous results attained.

As many changes could be made in carrying out the above constructions without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

l claim: n l

1. ln a liquid dispensing device, a reservoir comprising end members, an enclosing member therebetween, a lill lpipe located centrally with respect to said members Aand means 'for clamping said enclosing member between the end members comprising a tension pipe spacedly surrounding said lill pipe.

2. In a liquid dispensing` device, a reservoir comprising end members, an enclosing member therebetween, a lill pipe located centrally with respect to said members and means for clamping said enclosing member between the end members comprising a tension pipe spacedly surrounding said fill pipe and openv` ings in said tension pipe below the upper edge oli' the lill pipe.

3. ln a liquid dispensing device, a reservoir comprising end members, an enclos ing member therebetween, a lill pipe located centrally with. respect to said members and means for clamping said enclosing member between the end members comprising a tension pipe spacedly surrounding said till pipe, an overliow pipe in the reservoir having a lower edge than the edge or" the lill pipe and openings in said tension pipe below the upper edge of the lill pipe and above the upper edge of said overflow pipe.

4. In a liquid dispensing device, a reservoir comprising end members, an enclosing member, therebetween, a lill pipe located centrally with respect to said members and means lor clamping said enclosing member between the end members comprising a tension pipe spacedly surrounding said till pipe, an overflow pipe Vin the reservoir having a lower edge than the edge ot' the fill pipe and openings in said tension pipe below the upper edge of the lill pipe and above the upper edge ot said overliow pipe and other openings in said tension pipe below Vthe edge of A saidoverflow pipe.

In testimony whereof, I have signed my name to this specification this 8th day of J une, 1928.

EDMUND P. HAYES.

Images