US1006010A - Hand-pump for freeing water from its contained iron. - Google Patents

Description

P. B. K. SGHUBBRT & G. BURGER.

HAND PUMP FOR FRBEING WATER FROM ITS CONTAINED IRON.

APPLICATION I'ILED MAY 4, 1910.

1,006,010, Patented Oct. 17, 1911.

COLUMBIA PLANO-GRAPH C0,, WASHINGTON, u. c.

tinrrsn srarns ra'rsivr orrion.

FRANZ BERNHARD KARL SCHUBERI AND GEORG BURGER, OF HAMBURG, GERMANY,

ASSIGNORS TO THE FIRM OF DESENISS & J'ACOBI AKTIENGESELLSCHAFT, OF HAM- BURG, GERMANY.

HAND-PUMP FOR FREEZING WATER FROM ITS CONTAINED IRON.

To all whom it may concern:

Be it known that we, FRANZ BERNHARD KARL SCI-PUBERT, a subject of the Grand Duke of Hesse, and Gross Bunsen, a sub ject of the King of Bavaria, both residing at Hamburg, in the German Empire, whose post-oflice addresses are 63 Hammerlandstrasse and 27 Beim Strohhause, respec tively, have invented certain new and useful Improvements in Hand-Pumps for Freeing Water from Its Contained Iron, of which the following is a specification.

This invention relates to improvements in hand-pumps, that is to say, pumps worked by a hand-lever and which are designed to utilize the well known process of freeing water from its content of iron by forcing the water with an excess of air through a filter in which the ocher, formed by the oxidation of the dissolved iron, is precipitated.

In the hand-pumps heretofore employed a single-acting suction pump for the water is arranged within the pumpwell while apart from this a single-acting air-pump is fitted above within the standard or frame, in which the hand-lever is journaled. Both pumps are commonly connected by a single rod and pitman to the hand-lever in such a manner that on lifting both pump-pistons simultaneously, the air pressure forces the check valve within the piston of the airpump to open downward, whereby the cylinder of the air pump is filled with air, while the water above the piston or bucket of the raw water pump is pressed into the filter which is arranged within the standard and which usually surrounds the common connecting rod of two pistons. On the downward stroke of the pistons, however, the water is enabled to pass the valve in the piston of the water pump meanwhile lifted from its seat, and at the same time the air beneath the air-pump-piston is pressed through a conduit into the water within the discharge pipe of the water-pump. In this manner an excessive amount of air may be added to the water over that required for the oxidation of the iron dissolved in the water. Notwithstanding, the hand pumps, as described, show the drawback, that, owing to the variation in the oscillatory movement of the hand-lever, it may occur that proportionately little or no air will be Specification of Letters Patent.

Application filed May a, 1910.

Patented Get. 117, 1911. Serial No. 559,356.

pressed into the water, since on a diminished degree of oscillation of the hand-lever during the downward stroke of the pistons the air within the air pump will not be suflioiently compressed, in order to thoroughly penetrate the water above the piston in the pump-cylinder, wnile on the upward stroke of the piston the space below the same will not be suiiiciently evacuated for lifting the piston-valve and thus admitting fresh air to enter the air-cylinder. At all events the proportion of the waterand air-mixture varies in accordance with the degree of oscillation of the hand-lever.

Now our invention has for its object to do away with the said drawback, and this we obtain by arranging two pump-cylinders of different diameter one above the other in such a manner, that the upper larger cylinder, serving as air-compressor, is designed to directly form the continuation of the lower smaller water-pump cylinder, and that for each pump cylinder a piston with an upwardly opening "valve is arranged upon a piston-rod common to both pumps, and between both pistons, close above the upper end of the lower, smaller pump-cylinder, a snifiie or snifting valve is provided. At the foot of the water-pump within a chamber, from which the suction pipe extends below the water level in the well, a suitable suction valve is provided.

The nature of our invention and the manner in which the same may be carried into effect may be explained by reference to the accompanying drawing, in which- Figure 1, is a vertical section through the pump housing or standard inclosing the operating parts of the pump, and Fig. 2 is a like section through the pump within the pump well.

The pump consists of the lower narrower cylinder 1 and the upper wider cylinder 2; the latter being provided at its lower end with a branch 3 to which is attached a snifting-valve 4. To the lower end of the cylinder 1 is attached the chamber 6 of the suction-valve 5 of the water pump suspending the suction pipe 7 which extends below the water level within the pumpwell. The bucket or piston 8 is provided at its upper face with an ordinary disk-valve 9 and likewise the upper, wider piston or bucket 10 with a disk-valve of india-rubber, vulcanized fiber or similar material. Both pistons are firmly attached to the common pis ton rod 12. The cylinder 2 of the air pump is provided with a cap or dome 13 to which the lower end of the discharge-pipe 14 of the compressed air is connected. This pipe extends upward into the standard or housing which consists of the socket 15, the hollow shaft or column 16, the cover-plate 17 and the head piece 18, in which the hand-lever 19 is journaled in the usual manner. Upon the bottom or base-plate of the column 16 the tube 22 is secured and into the centrally arranged socket 23 at the lower end of this tube is tightly screwed the upper end of the discharge pipe 14, which terminates at the lower end of a short stand pipe 24, communicating through one or more apertures 25 with the interior of the surrounding tube 22. l/Vith the aid of a ferrule or socket 26 the stand pipe 24 is screwed to a guide 27 for the piston rod 12, which terminates in a crosshead 29 sliding within a guide 28. The crosshead however is connected by a pitman 20 to the short arm of the handlever 19 extending into the interior of and supported by the head-piece 18 of the pump standard. The guide 28 rests by means of a flange at its upper end upon the cover plate 17 to which it is fastened in the usual manner by screw-bolts and nuts.

The annular space between the column 16 and the tube 22 is at the lower and upper ends shut up by annular screens 30 and 31, respectively, while the vertical space between these screens is filled out with sand or other suitable filtering material.

On the upward oscillatory movement of thehand-lever 19 both the pump-pistons or buckets 8 and 10 descend and admit the water and the mixture of water and air, respectively, by passing the lifted valves 9 and 11 to enter the space above the said pistons, while on the downward movement of the hand-lever and the ascension of the pis tons the water within the pump well, by passing the suction pipe 7 and the suction valve 5, enters the cylinder 1, and at the same time the water above the piston 8 is lifted into the wider cylinder 2 while the ascending piston 10 causes the outer air to be sucked up through the valve 4 in order to mix with the water entering from below. The mixture of water and air above the piston 10, collected in the cylinder 2 during the preceding downward stroke, is forced during the upward stroke of the pistons through the discharge pipe 14, the apertures 25 of the stand pipe 24, the annular space within the tube 22 and the upper screen 31 into the filtering material stored up within the annular space between the tube 22 and the column 16 and while the oxidized iron sus pended in the water is retained by the filtering material, the pure water entirely freed from iron, after having passed the lower screen 30, will flow off through the faucet 21.

It will be perceived from the foregoing, that, when both cylinders are filled with water in the lowest position of the pistons, the water within the lower, smaller cylinder above the bucket on the out-stroke of the pistons is forced into the upper larger cylinder. Seeing that this quantity of water is only suflicient to partly fill the upper larger cylinder, and that the piston of the latter during the filling period is also ascending, a vacuum would occur within the space between both pistons. This, however, is prevented by the valve 4 provided at the lower end of the branch 8, which admits a corresponding amount of air to enter the space between the two pistons and to mix with the water therein contained. This amount of air is so much greater as the diameter of the two pistons differ from one another, and it is obvious that the amount of air sucked up will be at any time in due proportion to the amount of the water to be supplied by a given sized pump, that is to say, that the proportion of the mixture of water and air will be the same at any time, independent of the stroke of the pistons being one-tenth or full.

Having fully described our invention, we claim 1. In a hand pump, the combination with two cylinders of different capacities, a discharge pipe, a bucket in each cylinder, a piston rod common to both buckets, a snifting valve controlling the admission of air to the larger cylinder, an annular filter distanced from and surrounding the discharge pipe forming an annular chamber between the discharge pipe and filter, said filter and chamber communicating.

2. In a hand pump, the combination with a discharge pipe, a large cylinder at the lower end thereof and a smaller cylinder below the larger cylinder, a bucket in each cylinder, a pump rod common to both buckets, a pump standard in the lower end of which the pipe discharges, an annular filter surrounding the discharge pipe to form an annular chamber between them, said annular chamber and filter communicating at their upper ends, and a discharge at the lower end of the filter.

FRANZ BERNHARD KARL SOHUBERT. GEORG BURGER.

lVitnesses Max KAEMPFF, ERNEST H. L. MUMMENHQFF.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. i

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