US1609193A - Flushing valve - Google Patents

Description

Nov. 30 1926.

W. A PRATT FLUSHING VALVE Filed Nov. 5. 1925 INVENTR ma?. Pmi# m Il m w VZ, l il.. Hm

IITNESES @if ATTORNEYS Patented Nov. 30, 1926.

y 1,609,191" UNITE-D STATES-PATENT o'ir-rixggY WILLIAM A. PRATT', or BAYONNE, NEW Jiiiisnv. y

' rLUsHiNG vAiivE.

Application filed November 5, 1925. Serial No. 67,091.

lThis invention relates to flushing valves and is an improvement over my Patent No. 555,755, issued Sept. 29, 1925, the 4ob]ect of the invention being to provide a simpliied structure which may be'readily assembled and disassembled. I ff A Another object of the invention is to provide a flushing valve wherein there-is provided what may be'termed an inner and outer head. l f.

A further object of the invention is to provide a flushing valve wherein the parts are so formed that the operating lever may be shifted around the casing of any desired point and thus eliminate the making of different forms of inlet members.

1n the accompanying drawing- Figure 1 is a longitudinal vertical sectionthrough a valve disclosing an embodiment of the invention. Y I i Figure 2 is a View similar to Figure 1 but showing the parts in their operated position with thefvalve flushing. Y I. Figure 3 is a sectional view through Figure 1 on line 3-3. Y f

Figure 4 is a sectional View through Figi ure 2 on line 4 4.

Referring to the accompanying drawing by numerals, 1 indicates acasing provided with an inlet 2 near-fthe bottom and an outlet 3 at the-bottom. The outlet structure 3 includes a valve seat 4 adapted-to receive' the washer 5 of the valve member 6. f The valve member 6 is provided with a short stem` 7 and what may be termed a lifting -plate 8.y

rlhis lifting plate is provided with a suitable washer 9 held in place by a plate 1() and screw 11.V The screw ll'extends preferably looselyT through the valve 6 and is screwed into the deflector 12. f This de'lector is provided with a deiecting surface 13 yset to deiect the flow of water in inlet 2fso as to pass out vthe outlet'l and is also .provided with a depending portion 14 which overlaps the outlet openingl of the overflow of passageway 16. The delector 12 is provided with a groove 17 'which'accommodatesa yshort key 18 preferably integral with the-casing- 1. This arrangement prevents the rotation-ot the deflector 12 and, consequently,'continu` allyholds the inclined surface 13 in proper position and `also holdshthe extension 14 so that it will' continually covert-he youtlet 15.

This is desirable as a back pressure of waterv passing out through the outlet 3 Amight back up into the`- passage-way 16 a-nd'thereby .interfere with' the proper operation of the entire'device. However, a reverse is true by reason 'of the extension 14. As the water passes the derleeting surface 13 and moves downwardly it will produce a suction or rarefaction at the outlet 15 so that passage-r way 16 can function in a very efficient mannei'. suitable enlargement 19 integral with the casing 1 while a passage-way 2O is formed iii the en] argement 21 integral with/the casing l. The bypass or pressure passage-,way 2O discharges .into aii annular groove22and from this groove the water passes through anaperture 23 into the chamber .24.. The groove22 is made iii'the inner head 25, which .inner head is covered and protected by the, outer head26, said outer head in ei'ect being. a casing'. and..a.,piotecting. structure. The inner head 25 is screwed into. the casing 1 as shown in Figure land at the lower end clamps a .strainer 27 in. positionagainst a division `.plate 28, which divisionrplateds. provided` with. a very .small dent 29 wherebyV The passage-way 16 is -i'orined in a water may. pass intoandfromthe chamber.

30. The plate 28 .is also provided with .an apertureV .oia loosely accommodating -the pin 31, whiclrpin is preferably.. provided Awith an enlarged hea-d. so that y.the same. may. readily ,co-act with the lower endl of thevv plungerr32. This plunger is threaded atthe. lower end and`has screwed thereon a memberv 33which, acts asxanV auxiliary. valve. and' carries a washer` 34 normally `engagingthe shoulder 351er closingthe passage-way 36.

The passage-way V36 opens into a. chamber` 37 having a.y number of` radial holesoraper.-` tures38 discharging .into the interior of the shell TheV shellv39ris provided-.with a number of .openings 40.-so-that water discharged through .passage-way l38 into this. shell will readily'find its way-into. conta-ct` with the casing 26 and fromlthence into kthe passage-way 16 and finally outthrough-theY outlet15.

.From..Fi-gure 3, it be noted thattlie..` inner head 25` is .providedfwithrabore 41 for. accommodating the piston 33 and this bore/is.

provided with. side notches 42 so thatw-hen the parts are in the .position shown in Figure 2 the water. may pass from chamber-30 through the vent 29, through passage-ways 42 and from thence through thepassage-way. 36'soas1to be readily exhausted., .Theshell 39is made in twoparts as shown in, Figure 4 whereby the inner. annulariangeAS may be readily fitted into the annular groove 44 of the inner head 25. At the upper end a threaded section 45 is formed on the shell 39 whereby the cap 46 may be screwed thereon and when the cap is properly screwed into position, it will pull upwardly on the shell 39 and press downwardly on the outer head or casino' 26 so as to lock the same in position and also effect a tight connection between the same and casing 1. In order to prevent the parts of shell 39 from moving toward each other at the upper end, a ring 47 is fitted within the threaded portion 45, said ring preferably having an overhanging iange overhanging the threaded section 45. The plunger 32 is provided with an offset section 48 having a slot 49 therein, said slot being adapted to accommodate a pin 50, said pin being provided with a suitable nut 51 for holding the same in place. The pin 50 extends loosely through one end of a `link 52 and the opposite end extends through a wrist pin 53 preferably formed integral with the enlargement 54 Aof shaft 55. The shaft 55 is connected in any suitable. manner with a hand lever 56. lVhen the parts are as shown in Figure 1, the valve is closed and when it is desired to open the same lever 56 is swung in either direction to a position substantially at right angles to the position shown in Figure 1 whereupon the parts will assume the position shown in Figure 2. As soon as this takes place, piston 33 is positioned over the aperture 23 and, consequently, no water can iow from the by-pass or passage-way 21. Also, the piston 34 will displace the water already in the chamber 24 and cause this water` to flow upwardly through the passageway 36 and finally out through the outlet passage-way 16. Also water in the chamber 30 will slowly pass through the vent 29 and from thence out through the passageway 16 as just described. The movement of the valve member 6 causes the water to flow from chamber 30 as described, said valve member being moved by the pressure of water from inlet 2 acting on member 8 and later on member 8 and the inclined surface 13. The hand lever 56 may be swung around to any desired position, as for instance, to the position shown in dotted lines in Figure 4. This is permitted by the fact that the outer head 26 may be freely rotated except when the cap 46 has been screwed down tight. It will thus be seen that by loosening this cap the head 26 and lever 56 maybe shifted to a desired position and then cap 46 tightened.

lVhen the parts are in the position shown in Figure 2, the valve is only partly open but will continuel to move upwardly until the screw 11 engages the pin 31 and forces the same upwardly and also forces the piston 33 and associated parts upwardly until they again assume the position shown in Figure 1. When ythis occurs, passage-way 36 is closed and the aperture 23 opened whereupon water under pressure may enter chamber 34 Lfrom the by-pass 21. This water gradually passes downwardly through the ventr29 into chamber 30 and, therefore, gradually forces the valve member 6 downwardly until it again assumes its closed position as shown in Figure 1. It will thus be seen that the action of the lever or handle 56 merely shifts certain parts in the valve structure so that the water itself will act both to open the valve 6 and to close the same. The vent 29 may be of any desired size and the pin 31 may be varied in length by removing the same and substituting a new pin either longer or shorter. The longer the pin 31 the less period of opening will be provided.

wWhat I claim is:

1. An automatic valve, comprising a heus ing having` an inlet openii and an outlet opening, a valve for controilingl the outlet opening, said valve being formed with an inclined face and a depend-.ing` extension at one end of the inclined face, said valve heing also formed with communicating chainbers above the valve, the upper chamber having a passage-way leading from the upper end, a lay-pass leading from the inlet into the lower part of said upper Chamb@T an overflow conduit leading from the outlet passage-way of said upper chamber to the outlet opening ofthe housing, said conduit discharging into said outlet opening against the extension of said valve and on the opposite side to said inclined face, a valve in said upper chamber adapted to seat in such a manner as to close the outlet passage-wav therefrom when the valve is in one position and to closethe by-pass when in another position, and means for operating the valve.

2. ln an automatic valve of the character described, a casing provided with an inlet opening and an outlet opening, a valve member for controlling said outlet opening, said valve member having an actuating dish. means for clamping a washer on said dis all, said washer snugly fitting the bore of said casing, a dividing plate arranged in the casing and spaced noril'ially from the valve member whereby a control chamber is provided, an inner head screwed into the upper part of said casing formed with a central opening 'inthe upper part presenting an upp'er chamber, said dividing plate having a vent extending therethrough, a piston arranged in said upper chamber, manually aetuated means for shifting said piston, said inner head having an annular groove, an aperture extending from said annular groove into said upper chamber, means on said casing presenting a passage-way from said inlet opening through said annular groove whereby water under pressure may enter said upper chamber, said head having mil a passage-way extending from the lower part oi the upper chamber to a point eXteriorly of said inner head, a piston normally closing said passage-way, means forming an outlet passage-way from a point exteriorly of said inner head to said outlet opening, and a removable pin mounted in said dividing plate, said pin extending into the lirst mentioned chamber and acting to raise said piston when said valve has been moved its :full stroke upwardly.

3. In an automatic iiushing valve, a casing provided with inlet and outlet openings near the bottom, a valve member for controlling said outlet opening, means connected with the upper part of the casing for controlling said valve, said means including an inner head., a reciprocating member associated with said inner head, a roclshaft operatively connected with said reciprocating member ior operating the same, a handle secured to said rock shaft, an outer head fitted onto said casing and acting as a journal member for said rock shaft, said outer head being capable of rotation in a plane at right angles to the axis of the casing whereby said handle may be positioned at any point around the casing, a shell arranged in said outer head and rotatably connected with said inner head and a cap threaded on said shell, said cap being formed to bear against said outer head when the cap is screwed down whereby said outer head will be pressed against said casing and thereby held against rotation.

4. In an automatic flushing valve. a easing provided with inletand outlet openings near the bottom, a valve member for controlling` said outlet opening, means connected with the upper part of the casing for controlling said valve, said means including a handle arranged exteriorly of the casing, a shaft rigidly secured to the handle, an outer head rotatably mounted on the casing, said outer head being capable of rotation in a plane at right angles to the axis of the casing, said outer head being formed with an enlargement acting as a bearing for said shaft, a shell mounted in said head and lined at the lower end so that it may be rotated but not moved longitudinally of the outer head, and a cap screwed onto said shell, said cap having' a portion positioned to press against the upper end of said outerhead for pressing the outer head against said casing whereby tne outer head is looked against independent movement.

WILLIAM A. PRATT.

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