US825547A - Oil-pump. - Google Patents

Description

No. 825,547. PATBNT ED JULY 10 1906. H. L. LBELIGE &: J. P. BURGER.

BIL HHYH. APPLEGATIGE mm 30 1.15. 1905.

s m .T N. E v m UNITED STATES PAIENT OFFICE.

HENRY L. LEILIGH AND JOHN P. BURGER, OF DELPHOS, OHIO, ASSIGNORS TO THE DELPHOS (JAN COMPANY, OF DELPHOS, OHIO, A CORPORA- TION OF OHIO.

OIL-PUMP.

Specification of Letters Patent.

Application fileliovornbor 15, 1906. fieriel No. 287,480.

To all whom it may concern.-

Be it known that We, HENRY L. LErLIoH and JOHN P. BURGER, citizens of the United States, and residents of Del hos, in the county of Allen and State of (lliio, have invented certain new and useful Improvements in Oil-Pumps; and we do hereby declare the following to be a full, clear, and exact de scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

Our invention relates to improvements in the class of pumps employed for transferring liquids from one vessel to another and embod g means by which the surplus liquid disc argedito the receiving vessel is returned to the storage tank or vessel through the con tinued o eration of the pump, whereby to efiectual y prevent an overflow of the liquid in the receiving vessel. While pum s of this class which employ a sin le pistonlead for effecting the discharge an siphoning heck of a liquid are perfectly satisfactory in their o eration and effectually revent an overflow of the receiving vessel w on oils or liquids of a light nature are operated on, it has been found in practice that they are ineliectual to prevent an overflow of the liquid from a re oeiving vessel when used in conjunction with oils or other liquids of a heavy nature.

The primary obj ect of our invention is the provision of a pum for use in conjunction with the handling of oils or other liquids of'a heavy nature that is so constructed as to cause a greater suction or siphoningforce through the returnipe than the ex oiling force through the ischargeipe, w ereby the heavy liquid when it rose es a predetermined height in the receiving vessel Willbe returned to the discharging vessel as fast or faster than it is expelled therefrom.

To this end the invention consists of certain novel features of construction, combinetion and arrangement of the arts, as will be hereinafter more fully descri ed and finally clalimei. d f

n t e ecoom anying rawings, ormin part of the spec cation, Figure l is 9. side ele vation of a pump embed g one construction of our invention wit a ortion thereof shown in central longitudina section. Fig.

2 is a side elevation of the pump in another position to that shown in Fig. 1, and Fi 3 is an enlarged view of the combined disc arge and return spout with a portion shown invertical section,

Referring to the drawings, 1 represents the pump cylinder or barrel, which is provided at its lower end with the usual foot-valve 2 and communicates adjacent such end with the discharge-tube 3. This discharge-pi e extends upward at the side of the cylin or and terminates at its upper end in a spout 3 and is provided adjacent its lower end with an outwardly-opening check-valve 4.

Substantially midway of the ends of the cylinder 1 is provided a chamber 5, which has one side cut away, as shown at 5, and is formed by securely placing the spaced artitions 5 5 within the cylinder. This s anihend ivides the pump-cylinder into an upper compartment 1 and a lower compartment 1 7 5 and has communication with each through u per portion of the cylinder, as shown. A.

e amber 7,having ohe side cut away, as at 7, is formed at the upper end of the cylinder 1 by the securing of a partition 7 b therein and has communication with the com artment 1 of the cylinder through a contra opening in said partition. Communicating with the compartment 1* off the cylinder adjacent its upper end is the return or siphon tube 8 of the pump, whiohtube for a portion of its length extends upward in parallelism with 5 the dischargetube 3 and terminates at its upper end in the spout 8 and is provided near its inner end with an inwardl -o ening check-valve 9, preferably of the hal t e.

The spouts 3" and 8 preferably merge at t eir 10o ends in a common nozzle 10, but are so arated throughout the length of the nozzle y a partition '10, as shown in Fig. 3. A conduit or channel 11 is provided at one side of the pump-cylinder and has its upper end communicating with the compartment -1 through an o' suing 11", adjacent its top, and

.itslower on communicating with the cone for engaging an opening 80 partment 1 through an 0 ening 11 adjacent its top. This channe is shown in the drawin s as bein formed bysecuring a lon itudinally-bent sleet-metal strip 12 to tire cylinder-casing.

A piston-r0 13 is mounted within the cylinder 1 and is of sufficient length to extend from without the top to substantially the bottom of the cylinder and has its upper or outer end terminatin with a handle portion 13. This piston-r0 passes freely through the o enings in the partitions forming the chambers 5 and 7, said openings being of greater diameter than the rod, and carries a piston-head 14 for operation in the compartment 1 and a piston-head 15 for operation in the com artment 1 The piston-rod is also provide with valves 16 and 17, which are fitted friction-tight to said rod and arranged to play therewith between the ends of the chambers 5 and 7, respectively. These valves are formed of a stiff disk of leather, rubber, or other suitable material and are adapted on the downstroke of the piston'rod. to close the lower port or opening in their respective chambers and on the upstroke of said rod to open said ports or openings and close the opening in the upper end of the chamber 5 and pack the opening in the cappiece 6, through which the rod passes, against eakage. Each chamber 5 7 and inclosed valve combines the functions of both a stuffing-box for preventing leakage around the piston-rod at such point and a valve for controlling communication between the related compartments and the exterior of the cylinder through the opening in the side of the chamber as the rod is reciprocated. An 0 ening 18 is provided in the lower end of t e upper compartment of the cylinder to prevent the forming of a vacuum below the piston 14 on its upstroke.

The operation of the pump is as follows: On a reciprocation of the piston-rod the lower iston-head 15 thereon operates on its upstro e to draw a quantity of oil or other liquid into the lower compartment 1 of the ump-cylinder, and on its downstroke to orce the liquid from the cylinder throu h the discharge-pipe 3 and its spout into t e receiving vessel, into which the end of the spout projects. The piston 15 on its downstroke also operates to create a suction in the return-tube 8 and is augmented in this operation by the action of the piston 14 in the compartment 1, due to the communication between the upper ends of the compartments 1 and 1 through the channel 11. As the liquid rises in the receiving vessel to a height sufficient to immerse the open end of the spout of the return-tube the suction created in the return-tube 8 draws the surplus liquid in the vessel through the return-tube and back into the pump-cylinder above the pistons, the valve 9 in the return-tube opening for that purpose and the liquid taking the course indicated by the arrows, which show a portion of the returned liquid as following the piston 15 and remaining in the lower compartment and a portion thereof as passing upward through the channel 11 and into the upper compartment of the cylinder above the piston. The liquid thus returned to the pump-cylinder is expelled on the upstroke of the pistons to the can or tank in which the pump is positioned, it being free to pass into the chambers 5 and 7 through the o enings or ports in the lower ends thereof an thence into the can or tank throu h the cut away portions 5 and 7' in the wa ls of said chambers, due to the upward movement of the valve 16 and 17 with the piston-rod.

It will thus be apparent that we have provided a pump of the non-overflow type, which has a more powerful siphonin than expelling force, whereby oils or other liquids of a heavy nature may be operated on and returned from a receiving vessel to the vessel from which dischar ed as fast or faster than they are expelled t lerefrom and simultaneous with the expelling operation, and that as many of the si honing-pistons may be provided in a single pum as the congealed or thickened condition 0 the liquid may require to effectually prevent an overflow thereof when ex elled to a receiving vessel.

Having thus escribed our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. A pump, comprising a cylinder divided into a plurality of compartments, a discharge-tube, a return-tube, a piston-rod, and a piston carried within each compartment by the piston-rod, said compartments having the portions thereof disposed above their pistons in communication, substantially as described.

2. A pump, comprising a cylinder having a plurality of compartments, a piston-rod, a piston carried Within each compartment by the rod, a discharge-tube and a return-tube communicating w1th one compartment on opposite sides of its piston, the portion of the compartment with which the return-tube connects being in communication with each of the like portions of the other compartments whereby to augment the suction created in the return-tube by the piston operating in the compartment with which it is directly connected.

3. A pump, comprising a cylinder having a plurality of superimposed compartments, a

ischarge-tube eading from the lower of said compartments, a return-tube having com- Inumcation with the like portion of each compartment, a iston-rod mounted within the cylinder, an a piston carried by said rod within each compartment, all of said istons' being operative to create a suction t ough the return-tube and the lower one being op-,

erative to create a discharge through the other tube.

4. In a pump, a cylinder having a plurality of communicating superimposed compartments, each compartment having a valved exit, a discharge-tube and a return-tube in communication with the lower compartment, a piston-rod, and a piston carried by said rod within each compartment, the one in the lower compartment being 0 erative to create a dischar e through one tu e and a suction through the other, and the other pistons being operative to augment the suction created in the return-tube by the first piston.

5. In a pump, a cylinder having a main compartment and an auxiliary compartment, each irovided with a valved exit, a discharge-tube leading from the main compartment and having an outwardly-0 ening valve, a return-tube leading to said compartment and having an inwardly-opening valve, means opening communication between the two compartments, a piston-rod in the cylinder, a piston carried by the rod within the main compartment and operative to create an expelling force through the discharge-tube and a suction through the re turn-tube, and a piston carried by the rod in the auxiliary compartment for au menting the suction created in the return-tn e by the other iston.

6. n a pump, a cylinder having two com- Innnicating compartments and an exit from each com artment, a discharge-tube and a return-tulih communicating With one com partment, a piston-rod in the cylinder, a piston carried by the rod within each cylinder,

one piston being operative to create an expolling force through the dischar lug-tube and a suction in the return-tube and the other to augment the suction in the return-tube, and a valve mounted in each exit-opening and operatively related to the piston-rod.

7. In a pump, the combination of a cylincler having two communicatin compartments, an exit-chamber communicating with each compartment, and a valved intakeopening in one compartment, an eductiontube leading from the compartment having the intake-o )ening, a return-tube communicating with 0th compartments, a piston-rod in the cylinder, a piston carried by the rod in each compartment, and a valve mounted in each exit-chamber and operatively related to the piston-rod.

S. In a pump, the combination of a cylinder having an intake at its lower end and two superimposed compartments communicating at their 11 per ends and each provided at its upper en with a valved exit, a piston-rod, a piston carried by the rod within each compartrnent, e valved dischergetube leading rem the lower com artment below the dpiston therein, and a va lved return-tube lea ing to the lower compartment therein.

In testimony whereof we have hereunto signed our names to this specification in the presence of two subscribing Witnesses.

HENRY L. LEILICH. JOHN P. BURGER.

above the piston Witnesses:

A. S. PERKINS, D. D. CHAMBERS.

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