US1071890A - Liquid-dispenser. - Google Patents

Description

J. nEsMoND. LIQUID DISPENSER.

APPLICATION FILED SEPT. 9, 1912.

'UNITED STATES PATENT OFFICE.

JOHN DESMOND, OE CHICAGO, ILLINQS, ASSIGNOR 0F 0NE-HALF T0 HARRY Dm 0E RIVERSIDE, ILLINOIS.

LIGUE-DISPENSER.

Specicaton of Letters Patent.

Patented Sept. 2, 1913.

To ou whom, it may concern Be it known that I, JOHN Demmin), a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and nsoful Improvements in Liquid-Dispensers, of which the ollowin is a specification.

M y invention re ates to improvements in liquid diwensers and has especial reference to devices of this character wherein liquid may be held within the receptacle or reservoir under pneumatic pressure and projected therefrom at will, and whereby air may be directly umped into the reservoir to regulate the orco with which the liquid shall be expelled.

One of the objects of my invention is to provide a device wherein a liquid such as an insecticide` or cleaning Huid such as gas@ iene or the like, may be contained under pneumatic, pressure and projected against or onto objects in desired qnantities and at convenient times.

Another object of my invention is to pro vide a pump conveniently associated with the reservoir by means of which the reservoir may he partly filled with liquid and subsequently with air under pressure.

ther and further objects of my invention will become apparent to persons skilled in the art from a consideration of the accompanying description taken in connection with the drawing, wherein- Fi ure 1 is a central vertical section of the evice; and Fig. 2 is a similar view taken at right angles to Fig. l.

In both of the views, the same reference characters indicate similar parts.

The reservoir or cylinder 5 may be made of a suitable material, auch as brass or the like, and preferably is rovided with dished or lbumped ends, 6 an 7. The handle 8 is secured to onefend of the casing, as shown, bymeans of -which the device may be supported 'and manipulated. A nozzle 9 for projecting a stream of Huid, shown in section in Fig. 1, is secured in a threaded bushing 10. The nozzle is provided with a clear front opening, and with a relatively long bore, as at 11, guiding and retaining the valve stem 12 in operative position with reference to the valve. At the inner end of the bore. 11 a valve seat 13 is provided for rece tion of the needle valve 14 on the end of tile valve 'stem 12. The seat is formed at the eofnjnrwtion of the two bores in the nozzle, and near the point where the transverse bore 15 flanks the axial bore. The lateral or transverse bore 15 admits liquid to the nozzle proper. A shoulder 9' is se cured against the threaded bushing 10 to provide a water-tight joint and to prevent the nozzle from going too far into the reservoir when it is secured in place. A gland 16 is secured to the other end of the casing for packing the valve stem to permit its easy reciprocaton and to render the casing substantially tight. Packing 17 as usual in such devices is employed in connection therewith for this purpose.

A collar 18 is secured to the valve stem l2, as by screw 19 or otherwise, against which the open compression spring 20 abuts, normally maintanin the valve closed asshown. The outer end o the valve stem 12 carries a handle 21, which is limited in its reciproeating movement by the handle 8. lVhen the handle 21 is moved to its full extent7 or until it comes into actual contact with the handle 8, it has not moved suliciently to withdraw the valve 14 from the guide bore 11 of the nozzle 9 and thus the valve cannot be displaced with reference to its seat, being constantly guided in its larger bore, the handle 8 acting as a stop to prevent undesirable further movement of the valve stem 12.

A pump 22 is secured to the side of the reservoir 5 and by this means the reservoir may be illed' with liquid or it may be partly filled with liquid and partly with air'. `The pump consists of a cylinder 23, provided with a nozzle 24. The nozzle has a central bore 25 at the upper extremity of which is formed a valve seat for the valve 26. It is adapted to move vertically in the larger bore. The Avalve is held normally closed by means of the spring 27 A screw threaded fitting 28 is a means for connecting the pump 22 to the reservoir 5, and serves as a passageway for fluid from the pump into the reservoir. It is hollow and is provided with contracted open ends. The valve 29 is normally seated in the opening inside of the of t e spring 30. A'piston rod 31 carries a piston 32upon its lower end for reciprocation within the c linder 23, and on its upper end is provi ed with a ring handle 33, by means of `which the rod may be reump and is held on its seat by means.

ciprocated. About midway of the vertical height of the reservoir 5 is an openingliquid is drawn into the cylinder 23. llhen the piston is depressed, the valve 26 is seated, and the liquid is forced out through the fitting 28, the valve being unseated, and when the piston is again drawn outwardly the spring 30 will seat the valve 29, and the valve 26 will be again opened against the pressure of spring 27. In this way, liquid may be taken from the liquid supply and forced into the reservoir 5. At the time the reservoir is bein filled with liquid in the manner describe the pet cock 34 is preferably opened, and when the liquid has reached the height of the opening which is closed by the pet cock 34, it will run out of said cock and lndicate that that quantity of liquid has been forced into the reservoir. Now, the cock 34 is closed, and the device` is taken from the liquid supply and the pump piston 3l is again operated, and by this means air is pumped into the reservoir on top of the liquid that it now contains until suflicient air has been introduced to produce the desired pressure. Now, if the handle 21 be moved toward handle 8 to open the valve 14 against the resilient spring 20, the liquid within the reservoir will be forced out as the result of the compressed 'air through the lateral openings 15 and through the central bore of the nozzle 9, and the force with which it will be expelled will be determined by the air pressure within the reservoir.

The device is especially convenient for applying insecticide in places that are inaccessible by other means, as it may be taken into a tree and the liquid directed into places and on surfaces that are not to be reached by ordinary means. This is not the only use for which it may be employed,.as it may be used to spray gasolene upon surfaces for cleansing them, as in cleanin oily surfaces of automobiles and like machmery, or for other purposes.

What I claim is:

l. In a device of the character described, a cylindrical reservoir, a nozzle provided with a controllable outlet valve in one end of the reservoir, an air-and-liquid pump secured directly to said reservoir, a valve norvmally closing communication between said reservoir and pum openable toward said reservoir, a nozzle or the pump opening in Substantially the same exterior plane as the reservoir nozzle, and a valve for said pump nozzle openable toward the interior of the pump.

2. In a device of the character described, a cylindrical reservoir, a nozzle provided with a controllable outlet valve in one end of the reservoir, an air-and-liquid pump having an inwardly opening valve at one end, said reservoir and pump being arranged with respect to each other to bring the nozzle of the reservoir and the valvedl opening of the pump in substantially the JOHN DESMOND.

In the presence (2f- MARY F. ALLEN, W. LINN ALLEN.

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