US1589997A - Display spout for dispensing pumps - Google Patents

Description

June 22 1926.

C. SPAETH DISPLAY SPOUT FOR DISPENSING PUMPS Filed August 6, 1924 31% A M W Patented June 22, 1926.

UNITED STATES v 1,589,997 PATENT OFFICE.

CHARLES SPAETH, OF CLEVELAND, OHIO, ASSIGNOR TO THE MARVEL EQUIPMENT COM- PANY, F CLEVELAND, OHIO, A CORPORATIOQT OF OHIO.

DISPLAY SPOU'J. FOB DISPENSING PUMPS.

Application filed August 6, 1924. Serial No. 780,839.

My invention pertains to an improvement in display spouts for dispensing pumps, my general object being to provide a valveless delivery spout in which a part of the oil or other liquid being dispensed may be detained for display purposes without drip or leakage at theopen mouth of the spout during inoperative periods of the pump.

In the accompanying drawing Fig. 1 is a side elevation of a measuring and dispensing pump mounted upon the top of a tank or barrel containing the liquid to be dispensed, and showing my improved display spout attached to the pump. Fig. 2 is an enlarged sectional view of the display spout itself, and Fig. 3 is a horizontal section of the same parts on line 33 of Fig. 2.

In dispensing liquids, especially lubricating oils, in measured quantities from tanks or barrels, it has been found desirable to give the purchaser an opportunity to visibly examine and inspect the product being dispensed. To facilitate this inspection and permit the display of the actual oil contained within the tank or barrel as it is being dispensed I have devised a spout head 2 which may be aseparate or integral part of the discharge pipe 3 of a lift or force pump, for example, a pump 4 having an intake pipe 5 adapted to be inserted within a tank or barrel 6. .The' pumping mechanism may be of any suitable kind or charactor, and as shown a hand crank 7 is adapted to operate the same to discharge the oil through the spout head which in the present instance 'is surmounted by a glass column 8 for visible display of all the oil passing through the spout. This glass column is constantly filled with oil notwithstanding that the spout has an open outlet or nozzle 9 at its bottom, and in operating the pump the oil dis layed within the glass column 1s dischargediand displaced by the oil pumped from the tank so that a new body of oil is stored and displayed in the column after each operation of the pump.

Spout head 2 is a hollow body divided internally by a wall 10 into an intake passage 11 and an outlet chamber 12, the latter having the nozzle or outlet 9 depending therefrom. This nozzle member is in the form of a short tube of small diameter, the upper end portion 14 of which is projected for a short distance into chamber 12. An annular enlargement 15 at the top of spout head 2 the bottom of cap 21 places the upper end is recessed and contains a seat for a sealing washer 16 and the bottom end of the glass tube of display column 8, and a horizontal wall 17 at the bottom of the recess is formed with a single hole 18 approximately nine thirty-seconds of an inch in diameter which opens into intake passage 11 to permit the oil to pass upwardly in a solid stream into glass column 8. Two small capillary acting holes 1919, each approximately threesixteenths of an inch in diameter, are also formed in wall 17 in open communication with outlet chamber 12 to permit the oil to pass from column 8 to nozzle 9. A central tie member in the form of a tube 20 of small diameter and of capillary action is screwed into wall 17 in open communication with outlet chamber 12 and this tube extends upwardly through a cap or cover 21 where an acorn nut 22 seals the upper end of the bore of the tube and serves to fasten cap 21 tight-1y upon the glass tube. Suitable sealing washers 23 and 24 are used between the nut and cap, and between the cap and glass tube, respectively, and the central opening 25 in the cap is also flared to hold litharge or any other suitable sealing substance around the tube. A lateral opening 26 in the small metal tube 20 at or near of the space within glass tube 8 in open communication with theupper end of the small central tube 20 and t'herethrou h in open communication with outlet cham er 12 and the upper end of nozzle 9. The purpose of this arrangement of parts is to permit the glass display column to be completely filled with oil and to remain unchanged or stand -in that condition under atmospheric pressure without leaka e or drip of oil at the open nozzle 9 whi e the pump is not operating.

Thus in a lift pump 4 such as shown the pump and its spout is filled with a head of liquid at all times, and in operating the 100 pump initially the liquid is forced to the top of the lass column and in so doing all or substantially all the air therein is forced out of the column through openin 26 and tube 20, and the liquid may fill t is tube eventually. When pumping ceases the flow of liquid at nozzle 9 also ceases and the liquid within the glass display column will be held therein by atmospheric ressure.

The factors that contribute to produce the W1 desired result are the relative difference in areas of the holes or ducts 18 and 19, the diameter of nozzle 9, the projecting of end 14 of nozzle 9 into outlet chamber 12, and the communicating connection between the top and bottom of the liquid column as exemplified herein by tube 20 which is also utilized in this instance as a tierod.

What I claim as my invention, is-

1. A liquid dispensing faucet including an outlet spout and a display chamber. the latter being provided with an inlet port and capillary outlet ports to the outlet spout, one of said capillary ports comprising a capillary tube communicating with the upper portion of the display chamber and serving in the initial operation of the device to vent the display chamber as the latter is filled, said tube thereafter being filled with fluid.

2. A liquid dispensing faucet including an outlet spout and a hollow display member having intake and capillary outlet connections at its bottom communicating with said outlet spout and a capillary air and liquid venting tube communicating with the outlet spout and the upper part of said hollow disp ay member.

3. A liquid dispensing faucet including an outlet spout with a discharge nozzle, a display tube extending upwardly from said spout, separate intake and capillary outlet openings at the bottom of said display tube and a capillary air and liquid venting tube extending with its u per open end into the upper part of said display tube and with its lower open end through the bottom of said display tube.

4:. The combination of a liquid dispensing pump with a liquid dispensing faucet comprising an outlet spout and a display tube provided with an inlet opening communieating with said pump and capillary outlet openings at its bottom to said outlet spout, one of said capillary openings being provided with av capillary tube communicating with the upper portion of said display tube for air and liquid venting and sealing purposes, said faucet dispensing liquid only durmg positive action or said pump.

5. A liquid dispensing spout having an intake passage and a discharge nozzle, a glass resaeer tube mounted upon said spout having intake and capillary outlet ducts open to said passage and nozzle, a cap for said tube, and a tu ular-capillary tie member for said cap and tube connected with said spout having open communication with the upper interior end of said tube and with said discharge nozzle.

6. A liquid dispensing spout having sepa rate intake and outlet chambers. a discharge nozzle projecting into said outlet chamber, a glass tube mounted upon said spout in open communication with said intake chamber. in capillary communication with said outlet chambers and closed at its top, and a capillary tube within said glass tube open at its opposite ends to said outlet chamber and the upper end of said glass tube.

7. A spout head for dispensing pumps, having a separate intake passage and outlet chamber. a nozzle of small diameter opening into said outlet chamber, a capillary tube extending upwardly from said spout and open at its lower end to said outlet chamber, a tubular display column open to said spout by capillary openings and enclosing said tube, a closure member for said column, means adapted to fasten said closure member in place, and said capillary tube having open communication at its upper end with the interior of said tubular column.

8. A spout head for dispensing pumps, having an intake passage and an outlet chamber therein and a recessed seat at its top provided with relatively large and small capillary ducts in communication with said intake passage and outlet chamber respectively, a cylindrical glass column mounted upon said seat. a central capillary tube within said glass column connected with said spout head and open at its bottom to said outlet chamber, a cap sleeved over said capillary tube in sealing position upon the top of said column, a fastening nut for said cap engaged with said capillary tube, and said capillary tube having an opening therein in communication with the upper interior part of said column.

in testimony whereoi ll alfix my signature.

ciaaaitns SPAETH.

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