US1180925A - Liquid-elevating device. - Google Patents

Description

W. JAY.

LIQUID ELEVATING DEVICE.

APPLICATION FILED NOV. x5. 1915.

1 9 1 @Uflfifi a Patented Apr. 25, 1916.

WEBB J AY, OF CHICAGO, ILLINOIS.

LIQUID-ELEVATING DEVICE.

Specification of Letters Patent.

Patented Apr. 25, 1916.

Application filed November 15, 1915. Serial No. 61,476.

To all whom it may concemt: Be it known that I, WEBB JAY, a cit1zen of the United States, residing at Chicago,

in the county of Cook and State of Illinois,

have invented new and useful Improvements in Liquid-Elevating Devices, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof. I

This invention relates to apparatus for lifting liquid from a lower to a higher receptacle by suction, the particular details being designed with special reference to the use of the device on a motor vehicle, as for lifting liquid fuel from a low level tank to a position from which it may be supplied by gravity to the carbureter of the vehicle motor. L

The various elements comprising the present structure are similar to the elements shown in my co-pending application, Serial No. 39,943, filed July 15, 1915, but the present invention involves a different arrangement of said elements and certain resultant modification of detail hereinafter described and shown in the drawing, as indicated by the claims.

In the drawings; Figure l is a diagrammatic side elevation indicating therelative location of'the several parts of this invention upon the motor vehicle. Fig.2 is a fore-and-aft vertical section of the principal elements of the invention.

Referring first to-Fig. 1, the main supply tank is indicated at A, disposed as frequently at the rear of the vehicle, the general out-- line of said vehicle being presented in dotted lines. The remainder of the apparatus is disposed'alongside the engine under the hood or bonnet inclosing the same and is connected with the tank, A, by a single pipe,B,

which terminates in the tank near the bottom thereof and is air-ranged to empty into -a receiving chamber, 1.- Through a duct or conduit, 2, formed in a common head or cover, 3, the chamber, 1, is placed constantly in communication with an air inlet chamber, 4, from which a pipe, C, leads to a source of suction as for example, the intake manifold of the engine as indicated in Fig, 1. Through the agency of the suction acting through the pipe, C, and small aperture,'5, through which said pipe communicates with the chamber, 4, the .pressure inthe latter chamber and in the chamber, 1,11s so reducedas to cause the atmospheric pressure acting upon the liquid in the tank, A, to force said valve, 7, opening'into an atmospheric pres-.

sure chamber, 8, serves at certain times for the discharge of the liquid accumulated in the receiving chamber, 1. But, since the chamber, 8, is at all times under atmospheric pressure acting through its constantly open vent, 8 the valve, 7 cannot open to discharge the liquid in the chamber, 1, so long as the chamber, 1, is subject to the suction through the pipe, C, and the resulting reduced pressure. Said chamber, 1, therefore continues to fill until it over-flows through the conduit, 2, into a receiving cup, 9, ca ried on the end of a lever, 10, whose opposite end COIltrOlS an air valve, 11, having a port, 12, which is large as compared with the aperture, 5. The forked end, 10*, of the lever, 10, engages the stem of the valve, 11, with lost motion, operating between and upon shoulders, 11 and 11", the latter of which limits the movement of the lever, 10, in one direction while the cup, 9, stops against the bottom of the air inlet chamber, 4, to limit the movement in the opposite direction. The lever, 10, is yieldingly held at either of said limits in a readily un-- dersto-od manner by means of a spring or springs, 13, connecting a point on the lever with a point on its supporting bracket, 14, at

.the opposite side of its fulcrum, 15. Thus,-

as the overflowing liquid from the'chamber,

1, accumulates in the cup, 9, and increases chamber, 4 and thence into a drain, 16, similar to the drain, 6, and provided with a similar valve, '17, which is contained within the valve chamber, 18, into which it opens, said valve chamber constituting substantially the receiving end of, and opening into a pipe, 19, le ding to the carbureter float chamber. D, indicatedon Fig. 1, for furnishing the liquid fuel to said carbureter and a branch-pipe, 20, leads from the atmospheric pressure chamber, 8, into said pipe, 19. Through the branch, 20, the cham bers,-8-and 18,are placed in constant comdecreases, the weight of the opposite end re eated. p

munication both delivering the liquid to the pipe, 19, and thence to the carbureter, and

both being exposed to atmospheric pressure, 1 the chamber 8, continuously through thevent, 8, and the valve chamber, 18, intermittently through the'atmosphere port, 12, so that both of said chambers aresubject to atmospheric pressure by way of the vent, 8". Thus it will be seen that upon the opening of the air valve, 11, which restores atmospheric pressure to the chambers, 4 and 1, the liquid contents of the chamber, 1, will immediately be discharged into the chamber,

8, there being no longer any suction to hold the valve, 7, closed, and for a similar reason the liquid discharged through the leak, 9*, and the cup, 9, will drain at once into the chamber, 18.

As the quantity of liquid in the cup, 9,

of the lever, 10, will begin to over-balance the cup and eventually the lever will return to the position in which it is illustrated in Fig.2, and immediately upon such return by closing the valve, 11, will again subject the chamber, 4, to the suction through the pipe, 0 and the cycle of operation will be It willbe understood that all the liquid discharged into the chamber, 8, becomes immediately available for use in the carbureter at a rate determined by the demand of the engine and controlled by the usual float-operated valve in the chamber, D, of said carbureter and the liquid discharged into the chamber, 18, is similarly available ditions, and especially under unusually fa-.'

.vorable running conditions, the engine will consume the fuel through its carbureter at a slower rate than such fuel is delivered to the chambers, 8 and 18, by the feeding mechanism. Thus, after'the mechanism has operated through a few cycles, it will accumulate a surplus of liquid tending to completely fill the chambers, 8 and 18, with their pipes, '19 and 20, leading to the car bureter.- Successivedischarges from the chamber, 1, tothe chamber, 8, will gradually raisethe general level of liquid in said chambers, 8 and 18,- so. that inthe event ,of along continued low demand of the engine for fuel, the liquid will rise'to such a point in the chamber, '4, thatthe cup, 9,

when filled by the overflow from the chamber, 1, and descending so as to open the valve, 11 will dip into liquid so deep that 'to the level of the liquidv in the chamber, 4 is discharged while the cup' is down, whereas all that is discharged while the cup is said cup willnot empty through its'leakport, 9, sufficiently to cause the reverse action for closing said valve, 11 until thelevel of liquid in the chamber, 4, has suflioiently subsided. Thus the air valve, 11,

will remain open until the engine has used up enough of the. surplus. to practically empty the chamber, 4, and the suction through the pipe, C, will not operate until the reserve supply of liquid fuel is thus diminished.

The blockade of the actionof the levercarried cup, 9, for operating the valve, 11, Wlll always occur when the valve, 11, is open and never when it is closed because her, 4, occurs almost entirely while the cup is down, because the entire contents down ciently to cause it to rise again, and the time it is next depressed, will be very small in comparison with the quantity'which it 'will discharge at said next depression, and

also small in comparison with the quantity which can be contained. in said chamber in so much of its depth as" the distance to which the cup is depressed in the liquid by the reaction of the spring, 13.

I claim 1. In combination with a main low level reservoir, a receiving chamber at a higher level; a conduit from the main reservoir discharging into thereceiving chamber; an air inlet chamber at approximately the level of the receiving chamber having a suction connection and an atmosphere :port; a suction and overflowconnection from the upper part of the receiving chamber to the upper part of said air inlet chamber; a valve controlling the atmosphere port; a device movably mounted in the air inlet chamber adapted and positioned to be v the change of level of liquid in the -cham-' moved by the discharge and accumulation of liquid from said overflow connection; means operatively connecting said device to the atmosphere inlet valve, an atmospheric pressure chamber into which the receiving which is'opened by such gravity discharge chamber Jdischarges by gravity; a valve and is adapted to be seated by suction from the receiving chamber, a valve chamber vinto which the air-inlet chamber discharges by gravity, a valve in said chamber which is opened by such gravity discharge and isadapted to be seated by suction from the air inlet chamber, and a liquid conduit leading from the atmospheric pressure chamber and from said valve chamber for delivering the contents of both said chambers to the same destination. f

2. In combination with a main low level reservoir, a receiving chamber at a higher level; a conduit from the main reservoir discharging into the receiving chamber; an air inlet chamber at approximately the level of the receiving chamber having a suction connection and an atmosphere port and a valve controlling said port; a suction and overflow connection from the receiving chamber to the air inlet chamber opening for discharge in the air inletchamber at the upper part thereof; a device movably mounted in said air inlet chamber, comprising a liquid receiver positioned for receiving the liquid discharged through said overflow and adapted to be moved by the weight of the liquid so received, and means operatively connecting said device with the atmosphere valvefor opening the latter by said movement, said receiver having a leak. port through which the accumulated liquid is adapted to drain slowly in comparison with the rate at which it may be filled by the overflow; a

valve chamber into which said air inlet ber, and to be seated by suction from the air inlet chamber, and a liquid service pipe leading from said valve chamber for Supplying a device adapted to utilize the liquid.

3. ln combination with a main low level reservoir, a receiving chamber at a higher level; a conduit from the main reservoir discharglng into the receiving chamber; a device positioned lower than said receiving chamber and adapted to'utilize the liquid which may be received into and discharged from said receiving chamber; an air inlet chamber positioned alongside said receiving chamber, having a suction connection and an atmosphere port and a valve controlling said port; a common cover for said receiving chamber and said a1r lnlet chamber whereliy they are associated as a unit, said cover containing a suction and overflow conduit between the two chambers; a devlce movably mounted in the air inlet chamber comprising a receiver positioned under the discharge end of the overflow conduit from the receiving chamber into the air inlet chamber and adapted to be moved by the weight of the liquid thus received for opening the atmosphere valve; a valve chamber into which the air inlet chamber discharges by gravity; avalve in said valve chamber which is opened by such gravity discharge and is adapted to be seated by suction from the air inlet chamber, and a service pipe from said valve chamber to the device which utilizes the liquid.

4. In combination with a mainlow level reservoir, a receiving chamber at a higher level; a conduit from the main'reservoir discharging into the receiving chamber; an air inlet chamber at approximately the level of the receiving chamber having a suction connection and an atmosphere port and a valve controlling said port; a suction and overflow connection from the upper part of the receiving chamber to the upper part of the air inlet chamber; a device movably mounted in said air inlet chamber comprising a receiver positioned for receiving the liquid discharged from the overflow conduit, and adapted to be moved by the accumulation of such liquid for opening the atmosphere valve, and being provided with means for slowly emptying said receiver of the liquid so received for operating it, and means for reversing its movement for closing the atmosphere valve when it is thus emptied; a device adapted to utilize the liquid; drainage discharge connections from the bottom of the receiving chamber and air inlet chamber respectively; valves adapted to be opened by gravity discharge from said chambers and to be seated by suction from said chambers respectively; and a conduit from the device which utilizes the liquid having connections at its upper end for receiving the liquid discharged by gravity from said receiving chamber and said air inlet chamber respectively.

I testimony whereof, I have hereunto set my hand, at Chicago, Illinois, this 8th day of November, 1915. 1

. WEBB JAY.

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