US 957669 A
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Description (OCR text may contain errors)
W. B. GARNETT.
APPLIOATION FILED MAR, 29, 1909 Patented May 10, 1910.
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WILLIAM B. GARNETT, OF TONKAWA, OKLAHOMA, ASSIGNOR F ONE-HALF TO JOSEPH E. FAULDS, 0F TONKAWA, OKLAHOMA.
To all whom it may concern: I
Be it known that I, WILLIAM B. GARNETT, cit zen of the United States, residing at T011- kawa, in the county of Kay and State of Oklahoma, have invented certain new and useful Improvements in Soap-Dispensers, of which the following is a specification.
This invention comprehends certainnew and useful improvements in liquid holders and dispensers of that type designed particularly to contain a saponaceous fluid and susceptible of beingreadily manipulated, so as to discharge a predetermined quantity of the liquid, and the invention has for its object an improved device of this character which embodies a peculiar arrangement of parts through the instrumentality of which the liquid is forcibly ejected through the outlet and thus prevents the latter from becoming clogged to hinder or stop the dispensing operation.
A still further object of the invention is a dispensing mechanism which embodies a piston valve that is arranged b and upon its movement to a position to a 0rd esca e for the liquid, to compress a supply of air, the air being conducted to a suitable point to act upon the liquid to be discharged and effect the results above mentioned, thereby considerably enhancing the value of the device and rendering it more attractive and efiicient" than the ordinary dispensers in general use.
With these and other objects in view that will more fully appear as the description proceeds, th invention consists in certain construction and arrangements of the parts that I shallhereinafter fully describe and then point out the novel features thereof in the appended claims.
For a full understanding of the invention and the merits thereof and to acquire a knowledge of the details of construction, reference is to be had to the following description and accompanying drawing, in which:
Figure l is a side elevation of a soap disnser constructed in accordance with my lnvention; Fig. 2 is a longitudinal section thereof, showing the piston valve in its normal position; Fig. 3 is a similar view with the piston valve'in an operative position; Fig. 4 is a transverse section on the line 44 of Fig. 3; Fig. 5 is a horizontal section on the line 55 of Fig. 2; and, Fig. 6 is a detail perspective view of the piston valve.
Corresponding and like parts are referred Specification of Letters Patent.
7 Application filed March 29, 1909. Serial No. 486,436.
Patented May 10, 1910.
to in the following description and indicated 111 all the views of the drawing by the same reference characters.
Referring to the drawing, the numeral 1 designates a preferably glass vessel which constitutes a reservoir for the liquid to be dispensed and which may be of any desired or approved construction or design, although in the present instance for the purpose of illustration, it is shown as formed at its upper and lower ends with somewhat reduced open necks 2 and 2. The upper neck 2 is designed to have the liquid introduced therethrough to fill the vessel and is normally closed by means of a screw cap 3.
he lower neck 2 screws within a substantially cup-like metallic bottom section 7. The bottom section 7 fits within an annular ring 4 formed at one end of a bracket arm 5 that is provided at its opposite end with outstanding attaching ears 6, the ears being secured to a wall or like support to sustain the soap, holder in a convenient position. The relatively large main portion of the vessel 1 bears upon the ring, so as to be held against downward displacement therethrough.
Disposed horizontallywithin the metallic bottom is a tubular casing 8 which has its interior reamed out and made perfectly true and smooth, so as to constitutea valve chamber. The casing extends longitudinally and has its rear end closed, while its opposite end protrudes forwardly through the side of the bottom section below the ring 4 and is exteriorly threaded, as indicated at' 9, and adapted for engagement with a screw cap 10. In proximity to its forward end the casing is pierced by vertically alining inlet ports 11 that communicate with the interior of the reservoir and admit the liquid therefrom into the valve chamber, the casing being also formed near its middle point with an outlet port from which leads a vertically I downwardly extending discharge spout .12 that projects through the bottom and is designed to deliver the liquid for use. In order to control the inlet and outlet ports a piston valve 13 'is slidably mounted in the valve chamber and is pro.- vided at its forward end with a reduced stem 14 that passes through a central aperture in the cap 10 and terminates in a. button or fingerpiece 15 arranged to receive ressurefrom the'thumb to operate the plston valve in the casing. As best seen in Fig. 6, the piston valve is substantially cylindrical in form, and has its opposite end portions fitted snugly to the walls of the valve chamber to constitute longitudinally spaced valves 16 and 17, washers 18 being mounted at the opposite ends of the valves to insure a tight joint and prevent possible leakage. Intermediate of the valves the piston valve is formed with an opening or recess 19 that communicates with the periphery of the piston valve and is constructed to contain the measured quantity of liquid which it is desired to discharge upon a single operation of the device. I
20 designates an expansion spring which is mounted within the tubular casing and is disposed between the rear closed end thereof and the adjacent valve 17, the spring normally acting upon the piston valve to slide the same forwardlyto assume the position illustrated in Fig. 2, in which the opening 19 is in registry with the inlet ports 11 while the valve 17 is interposed between the inlet and outlet ports to prevent the escape of liquid flowing into the said opening from the reservoir.
In the practical operation of the dispenser pressure is exerted upon the button 15 to slide the piston valve rearwardly against the compression of the spring 20, so that the opening 19 is brought into registry with the discharge spout 12 to permit the measured quantity of liquid contained in the former to escape through the latter for use. Such movement of the piston valve manifestl causes the valve 17 to be moved rearwar ly in the chamber past the outlet port, while the forward valve 16 assumes a position to close the inlet ports 11. This manner of operation together with the general structure hereinbefore described, is utilized in several forms of dispensing devices, and has beenfoundin practice to be open to several serious objections,-principal among which, isthe fact that the liquid, such'as soap, tends to clog the outlet port and discharge spout, so that the delivery of the measured quantity of liquid is rendered very the outlet port.
slow and otherwise hindered, and in some instances is revented altogether. This may necessitate t e cleaning of the device and require that the liquid be removed from thereservoir and various parts of the dispensing mechanism be separated, thereby consuming valuable time and labor. present invention aims to obviate such obection and comprehends a tube 21 which leads from the rear end of the casing and opens through the same at a point above and in substantially vertical alinement with By virtue of such construction when the valve 17 moves rearward in the chamber past the outlet port, as before described, the air in the rear portion of the chamber is compressed and forced through the tube, so as to reenter the chamber on the opposite side of said valve. The compressed air thus escapes into the opening 19, which in this instance, is in registry with the discharge spout 12,'the quantity of liquid contained in the opening 19 being acted upon by the compressed air, so as to be forcibly ejected from the valve chamber, thereby insuring a ositive delivery and precluding the possib' ity of the outlet becoming clogged. After the piston valve has been returned to its normal position under the influence of the spring 20, the partial vacuum in the rear portion of the valve chamber is filled by air admitted thereto through the discharge spout and outlet port.
Among the many advantages residing in this improved device, attention is particularly directed to the fact that the desired object is attained by a very simple and re liable structure, and that the device as a whole consists of comparatively few parts whichare not likely to get out of order and which are susceptible of being easily and cheaply manufactured, so that the dispenser may be placed upon the market at a price not too great to prevent its general adoption.
Having thus described the invention what is claimed as new is:
1. A liquid dispensing apparatus comprising an elongated valve casing formed at an intermediate point with an outlet port, the casing being closed at one end and being provided with a by-pass leading from said closed end and reentering the casing at a point in transverse alinement with the outlet port, the casing being pierced by an inlet port intermediate of its other end and the outlet port, a liquid reservoir in continuous communication with the inlet port, a reciprocatory piston valve formed intermediate of its ends with a transverse measuring chamber of less length than the distance between the inlet and outlet ports, the piston valve being movable into operative position within the casing to bring the measurng chamber into registry with both the in ct port and the ad acentend of the bypass, and to compress air in the closed end of the casing and through the by-pass to forcibly eject liquid in the measuring chamber through the outlet port, and'a spring acting on the piston valve to normally maintam the same in ino erative position with the measuring cham er in communication with the inlet port and with both the outlet port and the adjacent end of the ,by-pass uncovered.
2. A liquid dispensing apparatus compris ng a vessel for containing a supply of liquid, a tubular valve casing dis osed substantially horizontally within the ower portion of the vessel in s aced relation to the bottom thereof, one en of the casing being closed and the other end being open and projecting outwardly through the side wall of the vessel, an outlet spout communicating with the lower side of the casing intermediate of the ends thereof and depending therefrom and passing through the bottom of the vessel, the casing being provided with a by-pass leading from its closed end and reentering the same at a point above and in transverse alinement with the outlet spout, the casing being also formed intermediate of its projecting endand the outlet spout with vertically alining inlet ports both communicating with the interior of the vessel, a reciprocatory piston valve mounted in the casing and formed intermediate of its ends with a transverse measuring chamber of less length than the longitudinal distance between the inlet ports and the outlet port, the piston valve being movable toward the closed end of the casing to bring the measuring chamber into registry with both the outlet spout and the adjacent end of the by-pass and to compress air through the bypass to forcibly eject liquid in the measuring chamber through the discharge spout, a cap removably mounted on the projecting open end of the casing and limitin the movement of the. piston valve in one 'irection, a stem secured to the piston valve and passing slidably through the cap and terminating at its outer end in a push button, and a spring acting on the piston valve to normally maintain the same in inoperative position against the cap with the measurin chamber in communication with both inlet ports and with both the outlet port and the adjacent end of the byass uncovered.
In testimon whereo I aflix my signature in presence 0 two witnesses.
WILLIAM B. GARNETT. [L. 5.]- Witnesses:
AARON S. H. FULGHUM, JosEPH E. FAULDB.