US1175379A

US1175379A - Rate-controller.

Info

Publication number: US1175379A
Authority: US
Inventors: Hans Reisert
Original assignee: REISERT AUTOMATIC WATER PURIFYING Co
Current assignee: REISERT AUTOMATIC WATER PURIFYING Co
Priority date: 1914-08-27
Filing date: 1914-08-27
Publication date: 1916-03-14
Anticipated expiration: 1933-03-14

Description

H. REISERT.

RATE CONTROLLER.

APPLICATION FILED AUG. 27, 1914.

1 1 75,379. Patented Mar. 14,1916.

3 SHEETS-SHEET 1.

Tm: COLUMBIA PLANOGRAPH cm, WASHINGTON, D. c.

H. REISERT.

RATE CONTROLLER.

APPLICATION men AUG-27, 1914.

Patented Mar. 14,1916.

3 SHETS-SHEET 2.

q/vbfmwoes ag al mvwmz @z'iw H. REISERT.

RATE CONTROLLER.

v APPLICATION FILED AUG.27,1914. 1, 175,3?9. Patented M211. 14, 1916.

3 SHEETSSHEET 3.

v m 20 20 Q 6/ 32 aiII/Illllll'? 3/ 5 i/ 0 NNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNN D.

HANS REISERT, OF COLOGNE, GERMANY, ASSEGNOR TO REISERT AUTOMATIC WATER PURIFYING COMPANY, A CORPORATION OF NEW JERSEY.

RATE-CONTROLLER.

Specification of Letters Patent.

Patented ll lar. ME, 1916.

Application filed August 27, 1914. Serial No. 858,940.

ject of the Empire of Germany, and residmg in Cologne, Germany, have inventedcertain new and useful Improvements in Rate- Controllers, of which the following is a specification.

In the prior application filed in the name of HansReisertFebruaryfi, 1912, Serial No. 675,501, there is disclosed a device for rendering uniform the flow of liquid from various sources, comprising a hollow open float connected with a variably opening valve and having communication on the one hand with the down-stream portion of the passage to be controlled and on the other hand by weep-cpen'ngs with the interior of'its float chamber, the latter in turn having communication with the upstream portion of the passage. I

The present invention relates, more particularly, to filters provided with such rate controllers, and the object is to provide means whereby the flow through the rate controller is throttled, or even stopped ,en-' tirely, when the level of water over the filter bed has fallen to a predetermined point. This is accomplished by suitable means for causing the water in the float chamber to escape at such time, so that they consequent descent of the float causes the valve to close or substantially close the opening or openings in the passage. At such times, an open by-pass around the valve permits the maintenance of a min'mum flow, so that the effluent from the rate controller is not entirely out off.

The invention also comprises certain features of novelty in respect to the rate controller itself.

In the accompanying drawings illustrating the invention byv means of its preferred embodiment: Figure 1 is a vertical section through a portion of thefilter, showing the rate controller and fioat'operated mechanism for throttling the same in elevation; Fig. 2 is an enlarged elevation of the rate controller and the ducts and valve, mechanism forming the more specific features of novelty, certain portions being sectioned and others brokenaway; Fig. 3 is a detail vertical section showing the auxiliary, float-controlled valve in a difierent position; and

the valve chamber 10.

Fig. 4 is a vertical section through the rate,

controller in aplane at right angles to Fig. 2.

The rate controller comprises a casing or valve chamber 10, affording a passage" of which 11 is the upstream portion and 12 the down-stream portion. Walls 15 separate these two portions of the passage and are provided with vertically alined openings, with which a double coneor cup-shaped valve 13 cooperates. The said valve is carried by a hollow valve stem 14, which depends from a hollow open float 19 within a float chamber 18 having an air vent 180 mounted upon The hollow valve stem serves to place the interior of the float in ccmmunicat'on with the downstream portion of the valve chamber. To this end it is provided between the valve members 7 with a suitable number of appropriately proportioned openings 22. and at its upper end, which may project slightly above the bottom of the float as shown, it is provided with other openings 30. A cap 31, screwed onto the upper end of the stem and locked in pcs1t1on by a screw 32, serves, in conjunction with rigid and compressible washers beneath the float,to hold the stem and float together, and may also be utilized to define the area of the openings 30. The stem l t and the wall 39, the sleeve being held tightly 111 place by a threaded ring 40.

Small openings 4-2 are preferably provided in the wall of the valve stem in communication with the space inclosed by the flexible diaphragm 37, so as to cooperate with the restricted passage formed between the exterior of the stem and the'opening" ll, on the one hand, and the interior of the valve 513611); "and the openings 22, on the other hand, to afford a continuously open passageway between the up-stream and down-stream portions of the passage around the valve, in order to permit frictionless movement of the valve stem 14 and to per- 38, 34 and 35 and a shoulder 36 on the stem i ing a passageway having its inlet end to close thepassage 43, the passage float chamber 18, from which latter the float is adapted to receive liquid through small wee ,-o aenin s 20 in. the u o oer oortion of its l e circumferential wall. In the particular construction illustrated, external pipes and flttings 42 are provided affording a passagewayhaving its inlet end at one side of the space 1 and its discharge end opening into the upper part of the float chamber. In addition, means'are provided for draining the float chamber, preferably into the downstream portion of the passage. For this purpose, pipes andfittings 43 are shown, aflord through the side of the float chamber near the bottom and its discharge end opening into the downstream space 12, A hand valve 44 may be introduced in'the piping 42 for the purpose of cutting off communication between the upstream part of the passage and the float chamber when desired.

Means are provided for opening the passage42 and closing the passage 43, or vice versa, accordlng as it is desired to have water enter the float chamber from the upstreamportion'of the passage or to drain the float chamber into the down-stream portion thereof. The particular embodiment of such means maybe widely varied, but in the preferred construction illustrated it comprises a double-ended slide valve 45 operating in a fitting 46 common to both the

passages

42 and 43, the construction being such that, in the position shown in Fig. 2, the

lower valve face rests upon a seat 47 so as 42 being open, while in the raised position illustrated in Fig. 3 the. upper valve portion bears against the valve seat 48, thereby closing the passage 42 and opening passage 43.

The valve 45 is under the automatic con trol of means responsive to a water level at or 1H communication with the source from which the valve passage 11, 12 is supplied.

More particularly the valve 45 is designed to be controlled by a flcat 49 riding on the body of raw water 5O over the filter. bed 51" of a filter such as is indicated generally at" 52, the purified water reservoir 53 of which supplies the passage ll, 12 through the outlet 54. The specific construction of the filter is not essential to the invention, and is, therefore, not illustrated more particularly. A gravel bed carries'the sand layer. Pipes 51* permit the water to flow from thefilter to the pure water reservoir and reversely when washing out. As shown, the connections between the float 49 and the valve 45 include a two-armed rocking lever 55, to

one end of which the float link 56 is connecthead at the source from decreasing the amount of water inside ed and. to the other end a link 57, which is in turn connected with the rod 58, the lower portion of which passes through the upper appropriate character, descent of the float 49 to'a predetermined point lifts the valve 45 from the position ofFig. 2 to that of Fig. 3, thus closing the passage-42 and permitting the water in the float chamber 18 to escape through the passage 43. Conversely, 118601 the float 49 again closes the passage 43 and opens the passage 42. The descent at the upper of the float 49 does not raise the valve 45,

so as to reverse the condition shown in Fig. 2, until the predetermined minimum level has been reached, at which time the slot 56 engages the. pin on the lever 55 so that further rocking movement of the lever .55 lifts the valve. i

The general operation of the apparatus will now be briefly described. Assuming the parts tov be in the positionsshown in Figs. 1 and 2, and the water to be admitted to the up-stream side'of the passage 11, 12 by the opening of amain'valve (not shown), water from the space 11 will pass through the pipmg 42 into the float chamber 18, where, a

sufficient amount of it having collected, it i will cause the float 19 torise,thereby opening the valve 13 and permitting the water to enter the down-stream portion of the passage. Back pressure existing in the downstream portion of the an adjusting valve or similar device 190 such as a plate with a fixedand smaller opening, determines the maximum outflow and causes'the waterto low valve stem into the interior of the float. Water may also be admitted to the float from the interior of the float chamber through the weep-openings -The float is thus weighted with a variable quantity of water, the flow of which is to be controlled, corresponding to'variations in pressure in the down-stream portion of the passage, these in turn result ng from variationslin which the passage is supplied or from progressive cloggingof the filter, etc. at the down-stream side, due to diminished pressure at the tip-stream side, results in the float 19, thereby permitting the latter to rise so as to increase the openings around the valve 13 to such an extent as to compensate for the reduced head. An increased pressure in the space 12 has the reverse results.

Thus, the effluent from the valve passage is tive of variations passage produced by rise through the hol ,Thus a decrease in pressure the valve passage may thus be stopped altogether, but preferably only throttled to a restricted flow permitted by the

bypass

41, 42, 14-, 22'. When the water level at the source rises again above the predetermined minimum, the valve 45 is returned to the position shown in Fig. 2 and normal conditions in the rate controller are restored.

While the preferred features of construe tion and operation of the apparatus and its preferred field of use have been described with particularity, it will be understood that numerous changes, substitutions and omissions may be made, without departing from the invention.

That I claim as new is:

1. The combination with a filter, and a rate controller connected with the outlet thereof, said rate controller comprising a passage having a variably opening valve, a float chamber'having communication with an up-stream portion of said passage, and ahollow open float in said chamber having openings for admission of liquid therefrom and means of communication with a down stream portion of the passage, said float being connected with the valve, of means for causing escape of water from said float chamber when the water over the filter bed falls to a predetermined level.

2. The combination with a fllter, and a rate controller connected with the outlet thereof, said rate controller comprising a passage having a variably opening valve, a float chamber having communication with an up-stream portion of said passage, and a hollow open float in said chamber having openings for admission of liquid therefrom and means of communication with a downstream portion of the passage, said float being connected with the valve, of means for shutting ofl communication between said float chamber and the rip-stream portion of the passage and for opening communication be tween the same and thedown-stream portion, and a float responsive to the raw water level in the filter and having connections for operating said means when said level has fallen to a predetermined point.

3. The combination with a filter, a passage for conducting the clear water therefrom, a variably opening valve in said passage, a float chamber, and a hollow open float in said chamber connected with said valve and having communication with the passage at the down-stream side of the valve, of means responsive to the level of raw water in the filter for allowing water to escape from said float chamber when the raw water level has fallen to a predetermined point. i

l. Means for controlling the flow of liquid comprising a passage,'a variably opening valve therein, a float chamber having communication with the passage at the upstream side of the valve, and a hollow float therein connected with the valve and having communication with the passage at the down-stream side thereof, in combination with a suitable source of supply for said passage, and means controlled by a water level at said source for shutting off admission of water to said float chamber from the up-stream portion of the passage and draining the water in the chamber into the downstream portion thereof.

5, The combination with a passage, a valve therein, a float chamber having communication with said passage at the upstream side of the valve, a hollow open float in said chamber having inletsto admit water from the chamber and communication with the down-stream portion of the passage, and aconnection between the float and valve, of

a source of supply for said passage, and

means controlled by a water level at the source for automatically shutting off admlssion of water to the float chamber and permitting the water therein to escape.

6. Means for controlling the flow of a liquid, comprising a passage, a variably opening valve therein, a float chamber, and a hollow open float therein having communication with the passage at the down-stream side of the valve and weep-openings for ad-v mitting water from the chamber, of passageways for connecting said float chamber with the lip-stream and down-stream portions of said passage respectively, a valve for opening either of said passageways and closing the other, and external float mechanism for controlling said valve.

7. Means for controlling the flow of a liquid, comprising a passage, a variably opening valve therein, a float chamber, a float in said chamber connected with said valve, a passageway for admitting water to said chamber from the up-stream portion of the passage, an outlet passageway from said chamber, and an automatic valve mechanism for opening either of said passageways and closing the other.

8. Means for controlling the flow of a liquid, comprising a passage, a variably opening valve therein, a float chamber over said passage and valve, a duct connecting said chamber with the rip-stream portion of the passage, a hollow open float in the float chamber having a hollow depending stem passing through an opening in the bottom of the float chamber into said passage and connecting the float with the valve and placing its interior in communication with the downstream portion of the passage, and a flexible "leakageito or from said float chamber.

9. Means 'for controlling the flow of a liquid, comprising a passagehaving a variably opening valve therein, a float chamber having communication with an up-stream .rortion of the Jassa e and a hollow open float in saidchamber connected with said valve and having communication between its interior and a down-stream portion of the passage, in combination with means for permitting escape of water from said float chamberso as to cause the float to move the valve in the closing direction, and means for 'maintaining a restrictedflow through the passage around the valve when the latter is closed. l i

10. Means for controlling the flow of a liquid, comprising a passage having a variably opening valve therein, a float chamber having communication with an tip-stream portion of the passage, a hollow open float in said chamber having a hollow depending stem connected to said valve andaflording communication between theinterior of the float and a downstream portion of the passage, and-means aflording restricted communicationbetWeen the upstream portion of the passageand theinterior of said stem and thence to the down-stream portion of the passage.

l1.Means for controlling the flow ot'a liquid, comprising a passage having a variably opening valve thcrein, a float chamber, a hollow open float in said chamber having a hollow depending stein connected to said valve and affording communication between the interior of the float and a down-stream or'tion of the passa e-means affordin an opening loosely receiving said stem and communicating with the upstream portion of the passage, said stein having an inlet arranged to permit water passing through said opening to enter the stem, thence to reach the down-stream portion of the passage, and means cutting off the by-pass through-said opening and inlet from the general interior of the float chamber.

12; Means for controlling the flow of a liquid, comprising a passage having a variably opening valve therein, a float chamber,

a hollow'open float in said chamber having a hollow depending stem connected to said Copies of this patent may be obtained for five cents each, by addressing the "Commissionerof Patents,

valve and affording communication between i the interior of the float and a down-stream portion of the passage, the bottom of the float chamber having an opening through fwhich said'stem passes loosely, and a flexible diaphragm cutting ofl' communication between said opening and the general interior of the float chamber, said opening being in communication with the up-stream portion of the passage and the said stem having an inlet to admit water trom'the opening.

13. Means for controlling the flow of liquid'delivered from a source comprising a passage having a variably opening valve therein, a float chamber having communication with an tip-stream portion of the pas-, v sage, and a hollow open float in said chamber connected with said valve and having communication with .a. down-stream portion of the passage, in combination with means responsive to a change inwater level in theregion of the source, an auxiliary valve operable by said means to permit escape of water from the float chamber so as to lower the float and thereby move the main valve in the closing direction, and means for maintaining a minimum flow around the main valve from the up-stream to the down-stream i portion of the passage at such time.- 1%. Means, for controlling i the flow of liquid delivered from a source'comprising apassage having a variably opening valve therein, float chamber having communica- 'tion'with an up-stream portion of the passage, and a hollow open float in said chamber connected with saidvalve and having a hollow stem affording communication between the interior of the float and the downstream port on of the passage, in combination with means responsive to a change in .water level in the region of the source, an

auxiliary valve operable by said means to permit escape of water from the float chamber so as to lower the float and therebymove the main valve in the closing direction, and means affording a restricted passageway from the tip-stream portion of the passage into the interior of said stem and thence to i the down-stream portion of the passage.

In testimony whereof, I have signedimy two subscribing witnesses.

- i HANS REISERT.

Witnesses:

Louis VANDQRY, HEINRICH F ASSBENDERV.

Washington, D. C.

name'tothis specification, in thepresence of r