US987968A - Method of siphoning fluid. - Google Patents

Description

2 SHEETS-SHEET 1,

In ven tar:

Patented Mar. 28

R. W. DAVIES. METHOD 0F SIPHONING FLUID.

APPLICATION FILED MAY 14, 1910.

witnesses UNITED STATES PATENT EEICE.

ROWLAND W. DAVIES, OF PITTSBURG, PENNSYLVANIA.

METHOD OF SIPI-IONING FLUID.

Specification of Letters Patent.

Patented Mar. 28, 1911.

Application filed May 14, 1910. Serial No. 561,434.

To a-ZZ whom it may concern:

Be it known that I, RowLAND lV. DAvins, a resident of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Methods of Siphoning Fluid; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to a method of siphoning water.

It is well known that a column of water can be raised by atmospheric pressure to a maximum height of about thirty-three and nine-tenths feet theoretically, but owing to mechanical imperfections the practical limit averages about twenty-eight feet according to the geographical situation above the sea level of the place in which it is performed. The object of my invention is to provide an easy, continuous and eicentmethQQl--Q ipllQIling..nvateriavhich wi increasatll@ miglia@fithaqlrnii .-..c-.11ati-s 01"- dinarily.. lifted. atmospheric pressurend through a means which is cheap and simple in its construction and arrangement, as well as such a means which will be automatic in its operation.

To these ends my invention consists, generally stated, in the novel method of siphoning water, as hereinafter more specifically set forth and described and particularly pointed out in the claims.

'Io enable others skilled in the art to which my invention appertains to practice my improved method of siphoning water, I will describe the same more fully, referring to the accompanying drawings, in which- Figure 1 is a side elevation ofv an apparatus for practicing my improved method of siphoning water. Fig. 2 is a longitudinal central section of the air compressing apparatus employed. Fig. 3 is a longitudinal central section of the devices employed in the short leg of the siphon. Fig. 4 is a longitudinal central section of another form of air compressing apparatus.

Like symbols of reference herein indicate like gures in each of the figures of the drawings.

As illustrated in the drawings the apparatus for practicing my improved method of siphoning water in which the siphon is shown at A in Fig. 1, and is provided with the usual vertical short or intake leg 1 and 55 the usual vertical long or discharge leg 2 which are connected together at their tops by the curved upper end o r head portion 3. The open lower end of the short leg 1 enters below the level of the water a to be raised, and such leg is divided above the water a into the two vertical portions or branches 1 which connect with the upper and lower portions 1a and 1b of said leg by the inclined portions 1C at each end of said branches. lVithin the branches 1 are the lower check valves 4 and 5 and the upper check valves 6 and 7, and such branches are connected together by a cylinder 8 between the same, which is positioned between the lower and upper valves, and is connected to one of said branches by a coupling 9 at one end of the same and to the other of said branches by a coupling 10 at the other end of the same. A piston 11 within the cylinder 8 has a piston rod 12 connected thereto, which extends through the coupling 10 and is connected to a piston 13 in a cylinder 14 of a compressed air engine 15. This engine 15 is supported on the side of the coupling 10 by a frame 16 and is provided with the usual supply ports 17 and 17 within its cylinder 14, which lead to each end of the same from the valve chamber 18, while the usual exhaust port 19 is located centrally between such ports and leads from the cylinder 14. An ordinary slide valve 20 within the chamber 18 is adapted to control the ports 17, 17 and 19 by means of a rod 21 connected at one end to said valve, while the opposite end of such rod is connected to a sliding block 22 on the frame 16, and such block has an opening 22 through the same, so that a weighted arm 23 passes through said opening and is connected to the piston rod 12 by a slotted end 24 thereon. This arm 23 is also pivotally connected at 24 on the frame 16 and is adapted to engage with the ends 22 on the block 22 in forming the opening 22 therein.

Connected to the lower end of the long leg 2 is the air compressing device 25, which is provided with two cylinders 26 and 27 and separated from each other by a central dividing wall 28. Tithin the cylinders 26 and 27 are the pistons 26 and 27, which are con nected with each other by a pisto-n rod 29, and one end of said rod extends through the cylinder 26 and is provided with a tube 29 slidably mounted on said rod at its outer end, which tube has a slot 29 on each side of the same for the reception of a pin 30 mounted on said rod. Pins 31 and 31 are mounted on and extend out from the tube 29 and are adapted to engage with an arm 33 pivoted by the shaft 34 on a bracket 32 extending out from the head of the cylinder 26.

At the lower portion of the device 25 is the valve-box 35, which is provided with a slide valve 36 therein for controlling the water passage- ways 37 and 38 leading from each end of the cylinders 26 and 27 and communicating with said box. Between the passage- ways 37 and 38 and located centrally between the cylinders 26 and 27 is the port 39 for communicating with the long leg 2, and an escape or exhaust pipe 40 leads from the box 35 to any point desired. Air ports 41 and 42 lead from the valve-box 43 at the top of the device 25 and connect with the cylinders 26 and 27 adjacent to the central wall 28, and an intake port 44 is located in said wall and communicates with the cylinders 26 and 27 at intervals. A valve 45 is located within the box 43 for controlling the ports 41, 42 and 44 and has a rod 46 connected to the same and pivotally connected to one end of a lever 47, which is pivotally connected to the shaft 34 and to a rod 48 at its other end, such rod 48 being connected to the valve 36 in the box 35. A weighted arm 49 is pivoted to the shaft 34 in the bracket 32, which arm has a weight 50 at one end and its other end is connected to the lever 47 througha slot 51 in the same fitting around a pin 52 on said lever. An air pipe 53 connects with the valve box 43 and with the chamber 18 of the engine 15, and if desired an escape valve 54 is placed above said chamber in the pipe 53 to provide for an overpressure of air in said pipe from the compressing device 25. A chamber 55 is connected to the valve box 43, by a pipe (not shown) and said valve box contains a float 56 having a plunger 57 connected thereto which engages with a pipe 58 for draining the valve box 43 of any water which might accumulate therein.

The use and ogeration of my improved method of siphoning water as carried out by the apparatus shown is as, follows-Vith the parts in position, as shown in Figs. 1 and 2, the lower end portion 1b of the short leg 1 of the siphon A is inserted into and below the level of the water or other liquid a to be lifted or siphoned, and the legs 1 and 2 and portion 3 of such siphon are then filled with water or other liquid by means of a hand pump or other suitable mechanism, so that the weight of such water in the -discharge leg 2 and within the port 37 in the device 25 will bear against'the outer face of the piston 26 in the cylinder 26, which will cause said piston to move toward the wall 28 and thereby compressing the air in such cylinder, while such air passes through the port 41 and valve-box 43 on said device and into the air pipe 53. Just before the piston 26 has reached the end of its stroke, the pin 30 on the piston rod 29 will have traveled along the tube 29 and will strike against the inner end of the slots 29" in said tube, so as to draw said tube with the rod 29 for the remainder of the stroke of said piston, which will cause the arm 49, through the means of the arm 33 connected thereto and the pin 31, to be thrown outward and to a position opposite from that shown in Fig. 2. As soon as the arm 49 assumes such position, the pin 52 on the arm 47 will be at the outer end of the slot 51 in said arm 49, and at the same time the valves 36 and 45 will be reversed thereby to the opposite position from that shown in Fig. 2, through the rods 46 and 48 connecting said arm 47 and said valves, so that such valves will open the port 37 to the discharge leg 40 and port 41 to the exhaust port 44 by being drawn over the same and open the ports 38 to the pressure and 42 to the chamber 43. These valves 36 and 45 being in this position the fluid will pass through the passageway 38 and will bear against the outer face of the piston 27 at the outer end of the cylinder 27 in the device 25, which piston is connected to the piston 26 in the cylinder 26 by means of the piston rod 29, and such piston 27 is thereby caused to move toward the central wall 28 between said cylinders to compress the air in the cylinder 27, so that such compressed air passes through the port 42 and valve-box 43 into the pipe 53, while at the same time the fluid which has been used in the cylinder 26 to compress the air in said cylinder is expelled therefrom by the piston 26 moving outward thereby so that such fluid will pass through the passage-way 37 and valve-box 35 and be discharged from said box through the pipe 40. rlhe port 44 in the wall 28 of the pump 25 is always open to the atmosphere at the time the water is being expelled from either of the cylinders 26 and 27, and is closed to one of said cylinders while the water from the discharge leg 2 is compressing the air in the other of said cylinders.

The com ressed air inwthempipepasses through t e sanitt'lie valve chamber 18 and through the passage-way 17 against the piston 13 in the cylinder 14 of the device 15, which piston is connected to the piston 11 in the cylinder 8 by the piston rod 12. The atmospheric pressure on the fluid a to be raised and into which the intake leg 1 is placed bears upward through the check valve 4 and coupling 9 and against the outer face of the piston 11 in the cylinder 8, with a pressure equal to the relief afforded in the curved upper portion 3 of the legs 1 and 2, which is created by the head of fluid in said discharge leg 2, and the compressed air bearing upward through the pipe 53 from the pump 25 and against the piston 13, and

such pressure acts against the atmospheric resistance on the side of the piston 13 to which the port 19 is open. rI hrough the movement of the piston rod 12, as before described, the rocking arm 23 pivotally connected to the supporting frame 16 and the sliding block 22 will act to slide said block toward the couplinglO, the arm 23 striking the left end 22 of the opening 22 in said block, which will allow the valve 2() in the valve-box 18 connected to said block to be reversed to close the passage-Way 17 and open the passage-way 17, while at the same time such position of the valve 20 will allow the exhaust port 19 to be opened to the cylinder lei on the inner side of the piston 13. The piston 13 is now forced inward in the cylinder 11i by the compressed air from the port 17 bearing upon its outer face, as before described, and the piston 11 through its connection to piston 13 by the piston rod 12, forces the fluid in cylinder 8 up through the coupling 9 and check valve 6, while the fluid a coming up through the check valve 5 and the coupling 10 with a pressure equal to the relief afforded in the curved portion 3 of the legs 1 and 2, as before described, and such pressure bears againstpiston 11 in the cylinder 8 and thereby aids in the expulsion of the fluid from the cylinder.

It will be apparent that since air is compressible and occupies considerable less space when compressed than when in ordinary atmospheric condition, that the piston 11 in the cylinder 8 must be of a sufliciently greater cross-sectional area than the piston 13 in the cylinder 14, to provide for the compressing of the air in the cylinders 26 and 27, for if such pistons Were of the same cross-sectional area the air in the cylinder 11 would have returned to its ordinary atmospheric condition before the piston 13 has reached the end of its stroke. The pistons 11 and 13 may, however, be of the same cross-sectional area by using such a device 25 as is shown in Fig. 4L, in place of the device 25, and such device 25 consists of having the ports 37, 38 and 39 contained entirely in the one cylinder 59, while the ports 41, 4t2 and i/l are all entirely contained in the cylinder 60. In the operation of this device 25 the fluid enters through the port 37 from the port 39 and bears against the piston 59, while. the air at atmospheric pressure is compressed by the piston 60 in the cylinder 60 through such piston being connected to piston 59 in the cylinder 59 by the piston rod 29, and the air thus compressed passes through the port 42 and into the pipe 53. The valves 36 and 45 are then reversed by the mechanism att-ached to the outer end of the piston 29, as hereinbefore described, and the fluid then enters the port 38 and bears back of the piston 29, which is now at the opposite end of the cylinder 59, as shown in Fig. i, while the air in the cylinder 6() is compressed by the cylinder 60, and passes through the port 41 and valvebox 43 into the pipe 53. The advantage of using the device 25 over the device 25, is on account of having the air and fluid, such as water, contained on opposite sides of the pistons 26 and 27, so that such water forms a tight packing around the said pistons and thereby prevents the escape of air from one side of either of said pistons into either of the cylinders 26 and 27, as both of said cylinders will thus at all times have the water on one side of their respective pistons.

Various other modifications and changes in the practicing of my improved method of siphoning water may be resorted to without departing from the spirit of the invention or sacrificing any of its advantages.

It will thus be seen that my improved method of siphoning fluid will in a great many cases entirely eliminate the use of pumps and engines for raising water beyond the ordinary siphoning limit, and will obviate the usual serious difficulty encountered in ordinary siphon methods which is the accumulation of air in the crown of the legs and causes the crown to break, While by the method employed herein the column of water is higher than the ordinary atmospheric pressure will support.

Vhat I claim as my invention and desire to secure by Letters Patent is 1. The herein described method of siphoning fluid to a greater height than that ordinarily supported by atmospheric pressure, which consists in appl ing the energy derived from the flui`d^in the discharge leg to the fluid to be raised.

2. The herein described metllodof siphoning fluid to a greater height than that ordinarily supported by atmospheric pressure, which consists in applying the energy derived from the fluid in the discharge leg for compressing air, and then applying such air to the fluid to be raised.

In testimony whereof, I, the said RowLAND 7. Dif-wins, have hereunto set my hand.

ROVVLAND WV. DAVIES.

IVitnesses:

T. B. I-IUMr-Imns, JAMES L. WEI-1N.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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