US1563372A - Draft arm for soda fountains - Google Patents

Description

Dec. 1, 925 1,563,372

7 J. KANTOR- 1mm ARM FOR SODA FOUNTAINS Filed Sept-20 1922 ZSheets-Sheet l Fi Fig.2

' INVEINTOR.

B W, M; ATTORNEYS.

Dec. 1, 1925 1,563,372

J. KANTOR DRAFT ARM FOR SODA FOUNTAINS Filed Sepfc. 20 1922 2 Sheets-Sheet 2 INVENTOR.

Patented Dec. 1, 1925.

UNlTED STATES JAMES KANTOR, OF CHICAGO, ILLINOIS.

DRAFT ARM FOR SGDA FOUNTATNS.

Application filed September 20, 1922. Serial No. 589,330.

To all whom it may concern:

Be it known that I, JAMES KAN'I'OR, a citizen of the United States, residing at Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Draft Arms for Soda Fountains, of which the following is a specification.

Provision must be made in the form of draft arm to which my invention relates, for the discharge, at the will of the operator, of either a relatively large stream of charged water to provide the desired volume in the glass or of a relatively fine stream at high velocity, which is commonly employed after substantially the required volume of liquid has been discharged for the purpose of mixing the contents of the glass or other receptacle being filled. In the constructions oon1- monly employed the head of the draft arm is provided with a pair of passages, one of which conveys the larger stream and the other the finer stream, the respective passages being controlled by separate valves operated by a common handle. The valves sooner or later become leaky and there is a consequent drip from the nozzle which is obviously unsightly and otherwise objectionable. It is difficult to get at the valves and repair them to prevent this leakage and furthermore it is difficult or impossible to determine which ofthe two valves is at fault, since the leakage from either drips from the same opening. It is the objectof my invention to improve upon the constructions of the prior art in this respect and to provide a draft arm which is simple in construction, is not liable to get out of order and which may be readily repaired in case of leak. It is a further purpose of this invention to provide such a construction in which drip is entirely prevented between successive operations of the device. Further objects and advantages of the invention will appear from the following description. It is to be understood, however, that the purpose of the specific disclosure is for the exemplification of invention only and that the scope of the invention is defined in the appended claims in which I have endeavored to distinguish it from prior art without, however, relinquishing or abandoning any novel feature thereof.

Referring to the drawings accompanying and forming a part of the specification, Fig. l is a front elevation partly in vertical section of a draft arm embodying my invention, Fig. 2 a side elevation partly in vertical section on a plane perpendicular to that of Fig. 1; Fig. 3 a vertical section partly 1n elevation; Fig. 4 a vertical section on the line 4-4 of Fig. 3 and Fig. 5 a top plan view of the improved draft arm with certain parts removed.

The draft arm head comprises a main casting 6 tapped at 9 for the reception of the usual goose-neck, and provided with a threaded end 7 to receive the nozzle 8. The head 6 is formed with a passage 10 for the coarse stream and a separate passage 11 for the fine stream. The latter communicates with the bore of a plug 12 which is screwed at 13 into the head 6. The bore of the plug is reduced in diameter at 14. The upper ends of the respective channels 10, 11, communicate with a horizontal chamber 15 in which is revolubly mounted a turning plug which controls the channels 10 and 11, and also serves as a valve operating device as will presently appear.

The head 6 is formed with a cylindrical valve chamber 17 above chamber 15 which communicates by passage 18 with the cavity 9 which receives the goose-neck and also through a passage 19 with the horizontal chamber containing the turning plug. A valve seat 20 is formed about the upper end. of the passage 19 and a valve 21 cooperates with said seat to control the passage between the goose-neck and the transverse bore 15.

The said valve preferably comprises the valve body proper and a washer 22 of leather or other suitable material which is held in position in the valve body by the screw 23. The upper end of the valve cavity is closed by a cap 24 screwed into the head and a light spring 25 is compressed between said screw cap and the valve and serves to return the latter to its seat. The valve cavity 17 is preferably cylindrical or substantially so and the valve body 21 may be hexagonal to provide passages for the liquid about the same. As best seen in Fig. 3 the passage 19 is generally cylindrical and contains a ball 26 which is movable vertically in said passage. To provide for the free passage of liquid past the ball the walls of the passage 19 are channelled as at 26, see Fig. 5.

The turning plug or shaft 16 is flattened orout-away at 27, see Fig. 4, the cut-away portion being uppermost and normally horizontal as shown in the figure. The ball 26 rests upon this flattened portion and normally is out of contact with the valve. Nhen the plug is rotated, however, the plug exerts a cam action on the ball to raise the same against the valve and to raise the latter from its seat. There is then open communication between the bore 15 containing the turning plug and the inlet passage of the goose-arm. It will be observed that the passages l and 11 communicate with bore 15 on opposite sides respectively of the plug and above the center of the latter. The flattened portion of the plug is of such extent that when the latter is revolved in the one direction it not only raises the ball but affords communication between the passage 19 and the passage 10, and when the plug is re volved in the opposite direct on it raises the ball and valve and affords communication between the passage 19 and passage 11. Thus the plug serves the double pr "pose of opening the single valve which controls the flow of liquid and directing the liquid to either the large passage for the coarse stream or the passage for the f ner stream, accordingly as the plug is swung in the one direction or the other.

In the particular exemplification of the invention shown in the drawings-the plug or shaft seats at its end against the flat end 3 of bore 15 and at its opposite end is formed with a reduced portion 31 to which the handle 32 is attached. Preferably the reduced portion 31 is flattened on one side at 32 and the end 33 of the handle yoke is formed with a similarly shaped opening so hat the handle is in effect keyed'to the plug. The opposite end 34 of the yoke is journaled upon a screw which is tapped into the head at 36. The head 6 is formed with a rabbct 37 at the open end of the cavity 15, which receives a leather or other elastic washer 3S and a metal washer 39 about the stem or reduced portion of the plug for the purpose of preventing leakage at this point.

Provision is made for returning the handle to nor nal, central position, as shown in Fi 2, when released from either valve open- .ing position. For this purpose the stem of the turning plug is provided with a radial arm 40 which is preferably an integral part of a collar 41 which latter, as seen in Fig. 2, is formed with an opening to fit over the reduced. partially flattened stem of the turn-' ing plug so that the arm is keyed to and turns with the latter. The outer end of the arm 40 is turned inward at 41 for a purpose which .will appear. lVhen the handle is in normal position the arm depends vertically and its lower end is in radial alignment with a pin 43 projecting from the side of the head. A spring 44 is formed with a couple of coils about the stem of the plug and its ends 45, bent substantially radially as best seen in Fig. 2, to extend respcctively on opposite sides of the inwardly turned end 41 of arm 40 and stationary pin 43. The tension of the spring is such as to tend to move the ends thereof towards each other and consequently to hold the arm 40 in the vertical position shown in Fig. 2. Obviously when the handle is moved in either direction from normal the inwardly turned end 41 of arm 40 carries one end of the spring with it and the other end of the spring bearing against the pin 43, the spring resists the movement of the handle from normal position and tends to return it thereto.

Preferably the spring serves the additional function of exerting a spring pressure upon the washer 39 thus compressing the packing washer 38 and preventing leakage between the plug and the head. Stop pins 59 limit the movement of the handle.

To enhance the appearance of the head and conceal the spring, etc., a pair of circular cheek pieces 46 are mounted on the respective opposite sides of the head and between the latter and the eye portions 3334 of the handle yoke. The cheek pieces are bored at 47, 48 to receive screw 35'and plug stem 31 respectively.

As heretofore stated the plug 12 having the constricted passage 14 for the fine stream of soda is tapped into the head so that the bore thereof registers with the passage 11. The undcrface of the lower end of the head is machined and ground smooth to act as a seat for the valve 48, the upper face of which is concave as best seen in Figs. 3 and 4. A light spring 49 is interposed between said valve and a shoulder 50 on the plug and normally maintains the valve inraisedclosed position. Though the strength of the spring is sufficient to normally hold the valve seated, in which position it will be observed it closes the lower end of passage 10 and prevents dripping from the latter, it readily yields when the valve and turning plug permit the charged water to flow through said passage and exert its pressure on the valve. The valve moreover forms a battle to check the direct violent discharge of the carbonated water from the head but permits it to overflow gently into the glass or other container being filled.

In external appearance and manipulation my improved draft arm is substantially like the draft arms in common use. It is superior thereto, however, in preventing leakage and dripping and in the ease and certainty with which it can be restored to drip proof condition when due to use or wear a drip develops. hen the arm is not in use the only packed oint holding back the charged water under pressure is the valve 21 which is held to itsseat not only by the spring 25 but by the pressure of the carbonated water belBO hind it. In case the washer 22 becomes worn, the only way in which dripping can be set up, it may readily be replaced by removing the screw cap 24 to provide access to the valve. The only other packed joint, to wit, which comprises the washer 39, is not subjected to liquid pressure except when the valve is open and then the pressure is relatively slight because one of the outlet passages from the turning plug chamber is open to the atmosphere.

I claim:

1. In a device of the class described a head having a chamber therein, a pair of passages opening from opposite sides of said chamber respectively, a supply passage communicating with said chamber, the three passages being arranged intermediate the ends of the chamber, a turning plug in the chamber having a cut-away portion adapted to place either of the first mentioned passages in communication with the supply passage and a valve in the supply passage normally closed but opened by the turning plug when the latter is turned to place the supply passage in communication with either of the other of said passages.

2. In a device of the class described a head having a substantially cylindrical chamber therein, a pair of outlet passages communieating with said chamber on opposite sides thereof respectively, a supply passage communicating with said chamber through the cylindrical wall thereof, a turning plug having a channel adapted to put said supply passage in communication with either of said outlet passages, a check valve in the supply passage opening away from said chamber and means intermediate the turning plug and said check valve for operating the latter when the turning plug is turned to place the supply passage in communication with either of said outlet passages.

3. In a device of the class, described, a head having a chamber and a pair of passages communicating with opposite sides of said chamber formed therein, a supply passage intermediate the passages of said pair communicating with said chamber, a valve controlling the supply passage, a turning plug in the chamber adapted to connect the supply passage with either of the first-mom tione-d passages and formed with a cam portion and means intermediate the turning plug and valve for opening the latter when the turning plug is turned to afford connection with either of said passages.

4:. In a device of the class described, a head having a transverse bore and a pair of passages opening into said bore on opposite sides thereof, a supply passage communicating with said bore intermediate the firstnamed passages, a reciprocating valve controlling said supply passage, a turning plug in the bore having a cut-away portion adapted when turned in one direction to put the supply passage into communication with one of the first-named passages and when turned in the other direction to put the supply passage into communication with the other of the first-named passages, a reciprocating valve controlling the supply passage and means intermediate the cut away portion of the plug and valve for opening the latter when the plug is turned from normal position.

5. In a device of the class described, a head having a transverse. cylindrical chamber therein and a pair of passages communicating with said chamber on opposite sides thereof, a valve chamber, a supply passage intermediate said valve chamber and the firstanentioned chamber, passage for supplying the valve chamber with liquid, a valve in the valve chamber controlling said suppl passage, a plug in the first-mentioned chamber having a cut-away portion whereby when the plug is turned in one direction from normal the supply passage is put in communication with one of the firstmentioned passages and when the plug is turned in the other direction the supply passage is put in connection with the other of the first-named passages, a ball in the supply passage and in contact with an eccentric portion out said plug whereby when the plug is turned the ball is forced against the valve to open the latter.

6. In a device of the class described, a head having a transverse bore and a coarse stream and a fine stream passage communieating with the bore on opposite sides thereof, said head being formed with a valve chamber above said bore, a passage connecting said valve chamber and bore and a passage for supplying liquid to said valve chamber, a valve in said valve chamber controlling the passage between the same and the transverse bore, a cap closing said valve chamber, a spring intermediate the cap and valve, a turning plug in the transverse bore having a cutaway portion adapted when the plug is turned in either direction from normal to form a connection between the supply passage and the coarse or the fine stream passage, a ball in the passage connecting the valve chamber with the transverse bore resting upon the cutaway portion or" the turning plug and adapted when the latter is turned in either direction from no mail to be forced into contact with and raise the valve and a handle for operating the turning plug.

7. In a device of the class described, a head having a pair of liquid conducting passages opening through the under-face thereof, a valve and a light spring normally forcing the. valve upwarc against said face to close one of said passages.

S. In a device of the class described, a head having a pair of passages opening through the lower face thereof, a plug having a central bore communicating with one of said passages, a valve mounted to slide on said plug and to close against the face of the head to cut oil the other said passage and a light spring normally holding the valve in its uppermost position.

9. In a device of the class described, a head having a. pair of passages therethrough opening through the lower face thereof, means for controlling the flow of liquid through said passages, a plug in said face having a passage con'ununicating with one of said passages, a cupped valve vertically reciprocahle upon said plug and normally closing the other passage and a light spring normally holding the valve in raised position.

10. In a device'of the class described, a head, a transverse bore in the head, a turning plug in the bore, outlet passages controlled by the turning plug, a handle for operating the turning plug and means for returning the handle to intermediate position when displaced to either side thereof comprising an arm on the turning plug, a pin on said head and a spring coiled about said turning plug and having its respective opposite ends on opposite sides of said pin and arm.

JAMES KANTOR.

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