US 2605781 A
Description (OCR text may contain errors)
Aug. 5, 1952 HYDRANT Filed Sept. 23, 1946 J. H. SCHMID ET AL 2 SHEETS-SHEET 2 Patented Aug. 5, 1952 and Frank J. Seigel, Pittsburgh. Pa., assignorsv f to J. A. Zurn Manufacturing Company, Erie,
Pa., a corporation of Pennsylvania Application September 23, 1946, Serial No. 698,831
This invention relates generally to'hydrants and more particularly to hydrants of the non` freezing type.
Conventional hydrants of the anti-freeze type utilize various means of draining waterfrom the column leadingto the spout ator near the base of the column. These hydrants require a porous lling at the base of the hydrant, thereby requiring the valve in the hydrant to be located a greater distance below the surface of the ground. In these prior devices there has been siphonage of Waste water into the water column when a reduced pressure or vacuum occurred in the water column or in the hydrant supply line.
It is, accordingly, an object of our invention to overcome the above and other defects in nonfreezing hydrants, and it is more particularly an object of our invention to provide a nonfreezing hydrant which is simple in construction, easy to install, economical in manufacture, economical in cost, and elcient in operation.
Another object of our invention is to provide a non-freezing hydrant which requires no drain or other connection to the outside thereof thereby eliminating any chance for cross connection between a drainage line or water and supply line.
Another object of our invention is to provide a non-freezing hydrant utilizing an ejector.
Another `object of our invention is to provide novel means for mounting the water column of a non-freezing hydrant a sufiicient distance below the ground to prevent freezing.
Other objects of our invention will become evident from the following detaileddescription, taken in conjunction with the accompanying drawings, in which:
Fig. 1 is a vertical sectional view illustrating an embodiment of our novel non-freezing hydrant;
Fig. 2 is a fragmentary vertical sectional view showing a check valve in the vent opening in the l water column;
Fig. 3 is a view taken on the line 3-3 of Fig. l;
Fig. 4 is a view taken on the line v4--4 of Fig. l;
Fig. 5 is a fragmentary side elevational view of the cam lever in a position to close the valve in our novel hydrant; Y
Fig. 6 is a fragmentary side elevational view of the cam lever in a position to open the valve in our novel non-freezing hydrant;
Fig. '7 is a fragmentary sectional view showing a modified form of our novel non-freezing hydrant; and
Fig. 8 is a view taken on the line 8-8 of Fig. 7. Referring now to the drawings, Fig.':1 shows a 2 claims. (ol. 137-282) base plate I-having azdepending flanged portion 2 for receiving a valve sleever 3 andY a depending flanged portion 4 for'receiving a water column 5.1 The base plate I is preferably disposed substantially at the ground Asurface The valve sleeve 3 has a. threaded portion 6 on theglower end thereof forthreadably engaging Lthe internally threaded portion1 of fitting 8 having a vertically disposed aperture 9 injaxial-alignment With the sleeve 3, and aesecondv aperture Ill leading to a Athreaded aperture I I- forthreadably engaging a threaded nozzle-I2. The upper end.
ofthe sleeve 3 isvthreaded at I3 for threadably engaging an internally threaded flanged cap member I4 having acentrally disposedaperture I5v for receiving a rod- I6 which .extends along the axis of the sleeve A3 downwardly therethrough. The lower end of the rod IS .is engagedto valve stem I1 by means of sleeve I8 and pins I9. Cylindrically shaped washers 20 having intermediate sealing washers 2|v are disposed on the stem I1 between collar 22 and a nut 23 engaging threaded portion 24 of the stem I1. The 4washers 2l seal the aperture 9 in fitting 8 and prevent passage of water therethrough The lowerend of the stem I1 hasV a` seatingmember 25 disposed between collar 26 anda nut 21 threadably engaging the lower threaded end of the stem I1. The
seating member 25 seats onseating portion 28 of the member -8 -and seals the aperture l0 in member to the passage of water from the supply line 29. A spring member 30 surrounding the shaft I6 is disposedonvthe upper end of the rod I6 between the cap member I4 and a collar 3I attached to the shaft I6 by a pin 32. Y The flanged member I4 and the collarv 3| have recesses 33 and 34, respectively, for nesting the ends of the spring 30. A cam lever 35-shown more. particularly in Figs. 5 and 6 has a bifurcated end 36, which is pivotally attached to the upper end of the rod I6 by a pin 31. The bottom surface 38 of the cam lever 35 is a predetermined distance from the horizontally extending pin 31, so that theseating member-25 seats von the seating surface 28 of the member 8 toi prevent the flow of supply Water when the bottom surface 38 of the cam lever 35 is in engagement with the cap memberv I4. When the cam lever 35 is moved in either direction a distance of degrees to' a position shown in Fig. 6. one side surface 39 of the bifurcated end 36 of the cam lever 35 engages the top of the cap member I4. Inasmuch asthe side surface 33 ofthe bifurcated end 36 of the cam lever 35isa greater distance from urged ball member '[5th'e`rein.
nally on one side and near the top side thereofy for bleeding air to or from the surge chamber i.
tting 8. It will thus be evident that air passing from the surge tank 4l will pass throught-,he apertured portion 42 thereof, through aperture The lower end of the apertured portion 42 has an aperture 43 leading intofchamber 44 in the the fitting 8 to shut off the supply of water from the supply line 29. The check valve 64 then seats on the wall member 62 to stop the back flow of Water from the hose connection 82 whereby water in the water column passes downwardly and disposes in the surge chamber 4l whichis below the frost line. Air is 4vented from 4the surge chamber 4| to the vent42A and a vent 43 to the valve sleeve 3 which also has a vent 45. It will be evident that no vent is absolutely required in the surge chamber 4I in order for our novel invention to function efliciently in that Awhen water is withdrawn by the nozzle I2 and arcuateshaped member 55 from the surge cham- 43 and chamber 44 to the interior of the valve sleeve 3.` Valve sleeve 3 has a small air `vent45 near the top thereof. The surge chamber 4I has the upper internal portion thereof threaded at 45 for threadably engaginglangedexternally threaded cap member 4-1.' The cap memberlli has a flanged portion 48l`disposed'centrally thereof withfinternal vthreads 49 for threadably engaging"k an arcuate lshapedmember 50 having an arcuate 'shaped centrally disposed aperture" 52 axially aligned with thefoz'zlemember l2. The lower end of the memberSGeXtends "a1 suiiicient distance below the -uppe'rlend of the nozzle member l2 tov providechangs of pressure (Venturi eifect) as waterpasse's through thenozzle member l2 to the arcuate shaped member 5). The upper end of the arcuatev shaped member 5ll`has a threaded portin53 'for` threadablyengaging 4' the threads in the cap member -4-1. The lower end of thewaterr clumrib has threads55 for threada'bly engaging" the threads lll-lv in the 'cap member 41. The upper end -of thev sleevev 5 has threads 58 forthreadably engaging the threaded angedportion 59 of 'globular member 60.A The upper end of the member '-60Y hasv external threads @6| "for connection to anyv conventional -hose coupling member 's uch as" coupling member -8'24 shown in 7 dotted 4 lines. rhe' member 60 has la fdividing wall' 62 with la centrally -disposed aperture *63 lladapted to be closed by a check Yvali/'e154 whenl there is no flow of waterV to- 'the hosefcoupling 822 The check valve 64 has afstel` 65 journalled inapertured web 56 disposed inthe upperfpa'rtof the member 6i);V An air ventB'! isprovided in the member lfto permit airto' be bledfro'm the member 60 and column'f 5.- In ',lig. 2;"I` have shown the globular* member Ell withian 'airvent 13, and a checlr valvemember- '(4 with sa spring- In operation, 4when "my novel 'nongfreezing hydrant is in a position as shown in Figi Y1; water is disposed in the'surge 'tank -4lrup to"` the top, or substantially thetop of the vent member 42. When the cam lever 35v is rotated 90 degrees, valve seat is lifted from the -seat 28 of the fitting 8 wherein water passes lthrough branch l0 of the ltting 8, through `nozzlel l2, member 5l) and water column 5 and out 'through hose `connection 82.I When water. passes 'through the nozzle I2 and arcuate 'shaped member -50 a .Venturi effect' results whereby water-*s `drawn from the surge chamber 4lr up throughthe'water column 5 to the hose connection :82, thereby leaving the surge chamber: 4I' ina substantially 'evacuated condition. When it isfdesired 'to Vshut off the supply of water, thecam lever israised to an upright position as-shown inzFig. 1` whereby the seating'member 25: Yseats on'the'seat' 28iof ,ber 4lf,vacuumwould be producedin the surge chamber 4l if there were no air vent thereby assisting jto returnr water to the surge chamber 4l when water ceases to pass through the nozzle l2;
It will be evident that the nozzle l2, and arou- 'ate shaped member :5.0 maytake manyv diierent formsV and thesurge cham-berm need notr necessarily be a part of the fitting 8.1Tl'1'eJsurge chamber' 4i is preferably' disposed below the frost line and is large enough to' 'contanall water inwatercolumn.'y I
'y In Figs' andV 8, weshow a modified form -of globular valve on the' upper endf-of the fluid supply line 5.` The .globular member 8| has van apertured central wall portion 83 for seating a check Valve 84 with a downwardly extending stem 85 and an upwardly extending stem 8l journalled in web 88.' A spring` member 86 urges the check valve 8411i sealing relationship with 'the' apertured wall portion 83 of the globular member 8l.' A lever 8S pivoted at 5i) has 'an outwardly-extendingY lever arm 9! for engagement with anoutwardly extending lug S3 on they cover member 92 disposed on the base member 8e. vIt will thus be evident that'whe'n the cover 92 is closed, the check'valve 84will` beforced-upwardly by the lever 89 through the engaging lug 93 causing the fluid in'uid line 5 to be forced below the frost line and into the surge chamber 4I.
ItV will be' evident from the 'foregoing vthat we have' provided "a novel nonfree'zing vhydrant which requires no outside drainage connections thereby requiringnol loosell around `the base of'the hydrant, which "Is `elcient inloperation, and'which prevents any :cross'c'onnection between a sewer line or subfsurface seepage water andy a supply water line.` .Y f
Various changesmaybe made in the present embodiment of 'our invention without? departing from the spirit thereof, vorY from the scope ofthe appended claims. I Y
-Whatweclaimisz 1. A non-freezing"hydrant'conprising alunitary tting adapted to be disposed belwthe frost line of the" earth having an inlet aperture in the bottom portion thereof and a laterally oiset outlet aperture in an upper portion thereof, an open surge vchamber eonoentrically disposed above said outlet 'apertureY and having the upper portion thereof internally threaded, 'a-v valve chamber concentrically aligned'with-s'aid inlet aperture, a passageway between'said 'surge' chamber and said valve chamber a predetermined dis- Y tance above the bottomjoic said 'surge'ohamber for venting said surge 'chamberto said valve chamber, a disc type valve movable lnfsaid valve Ychamber for opening'fand'closing the-inlet aperture in said fitting to control 'the flow f :Huid between said. inlet-and ioutlet apertures tlierein, a cylindricalv valve casing? concentric'v lw'ith" I'said valve chamber and extending upwardly therefrom to the surface of the earth, a Valverod extending through said valve casing and attached to said disc type valve, means kfor reciprocating said valve and valve rod', a quickly detachable jet member disposed in the outlet aperture of said tting and the bottom of said surge chamber, a skirt member spaced from and concentrically aligned with said jet member in said surge tank, an externally threaded cover to which said skirt member is connected threadably engaged 'with the internally threaded portion of said surge chamber of said ittingmeans for adjusting said skirt member vertically with reference to said jet member, and a conduit connected to said cover concentrically aligned with said ejector member and said skirted member for the ow of uid to a point extending above the surface of the earth. y
2. A non-freezing hydrant comprising a unitary tting adapted to be disposed below the frost line of the earth having an inlet aperture in the bottom portion thereof and a laterally offset outlet aperture in the upper portion thereof and a passageway therebetween for fluid, an open surge chamber concentrically disposed above said outlet aperture and having the upper portion thereof internally threaded, a valve chamber concentrically aligned With said inlet aperture, a common wall between said surge chamber and said valve chamber having an offset aperture in the upper portion thereof for venting said surge chamber to said valve chamber, said offset aperture being spaced a predetermined distance above the bottom of said surge chamber, a disk type valve movable in said valve chamber for opening and closing the inlet aperture in said fitting to control the flow of fluid between said inlet and said outlet apertures therein, a valve stem on said valve extending through said valve chamber, a guiding member surrounding said valve stem and movable in said valve chamber and in sealed relationship with the inner side thereof, a handle forV reciprocating said valve and valve stem, a quickly detachable jet member disposed in the outlet aperture of said fitting in the bottom of said surgechamber, a skirt member spaced from and concentrically aligned with said jet member in said surge chamber, an eccentrically threaded cover to which said skirt member is connected threadably engaged with the internally threaded portion of said surge chamber of said tting, means for adjusting said skirt member vertically relative to said jet member, and a conduit connected to said cover concentrically aligned with said jet member and said skirt member for the flow of iiuid to a point extending above the surface of the earth.
JOHN H. lseni/m3. JOHN P. TANsEY. FRANK J. s-EIGEL.
REFERENCES kcifrar) The following references are of record in 'le of this patent:
UNITED STATES PATENTS the Number Name Date 109,553 Sch-riber Nov. 22, 18710 113,216 Smith Mar. 28, 1871 174,181 Bailey Feb. 29, 1876 436,932 Best Sept. 23, 1890 1,154,582 Hollowell Sept. 2'1, 1915 1,648,238 Modra Nov. 8, 1927 2,097,733 Miller Nov. `2, 1937 FOREIGN PATENTS Number Country Date 3,643 Sweden of 1892 5,393 Austria of 1901 5,396 Great Britain of 1896 7,520 Germany of 1879 A 10,134 Denmark of -7 25,156 Germany of 1882 236,645 Germany of 1911 379,282 France of 1907