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Publication numberUS726369 A
Publication typeGrant
Publication dateApr 28, 1903
Filing dateFeb 1, 1902
Priority dateFeb 1, 1902
Publication numberUS 726369 A, US 726369A, US-A-726369, US726369 A, US726369A
InventorsJohn J Sullivan
Original AssigneeJohn J Sullivan
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Valved appliance.
US 726369 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

PATENTED APR. 28, 1903.


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PATENTED APR. 28, 1903.





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SPECIFICATION forming part of Letters Patent No. 726,369, dated April 28, 1903. Application filed February 1, 1902- Serial No. 92,180. (No model.)

To rtZZ whom, it may concern..-

Be it known that 1, JOHN J. SULLIVAN, a citizen of the United States of America, and a resident of Holyoke, in the county of Ham pden and State of Massachusetts, have invented certain new and useful Improvements in Valved Appliances, of which the following is a full, clear, and exact description.

This invention relates to improvements in valved appliances -su ch as hydrants, faucets;

and analogous devices for controlling the passage and delivery of water-wherein are comprised a main valve for absolutely shutting off the ingress of water and a secondary valve which is movable in conjunction with the primary valve to preliminarily partially shut off the water, so that the abrupt closing of the valve is avoided and in consequence thereof the objectionable water hammering which is occasioned by the surging or vibratory action of the water against the primary valve.

The principal object of the present'invention is to provide in the hydrant, faucet, or like appliance the primary and secondary valves, which are capable of movements independently of each other, and to combine there with such operating means therefor as to cause 1n the opening and closing actions a different extent of movement to the primary valve from that of the secondary valve, so that when both the valves are open they will both have non obstructing positions relatively to the waterway and yet so that when the valves have their closing motions imparted thereto the secondary valve will, for instance, move faster than the primary valve to have the effect of obstructing, though not entirely closing, the Waterway seasonably before the primary valve becomesseated.

The invention consists of a valved appliance having a waterway therethrough, a primary valve for entirely closing the entrance of the water into and through said way, a secondary valve'movable to obstruct and nearly but not quite close the passage of the water and to be withdrawn from such obstructing position, leaving the waterway practically clear, means for openingand closing the primary valve, andmeans for concurrently imparting to the secondary valve a different extent of movement from that of the primary valve; and the invention furthermore and otherwise consists in combinations and arrangements of parts, substantially as. hGI'Glllz after described, and set forth'in the claims.

Reference is to be had to the accompanying" side and central vertical section of a hydrant,

showing the improved valves and valve-operating devices, the primary and secondary valves being shown as opened and occupying proximate relations. Fig. 2 is a substantially similar view to Fig. l, but showing the primary and secondary valves as in the positions for closing the waterway of the hydrant, said valves here having assumed distended relations. Fig. 3 is a horizontal cross-sectional view taken on the lineS 3, Fig. 2. Fig. 3 is a horizontal cross-section taken. on the line 3 3, Fig. 1. In Sheet 2, Fig. 4 is a central sectional view through the faucet constructed under this invention, the primary and secondary valves thereof being shown as resents the hydrant-casing, of the usualor any suitable construction, having the usual provision whereby it may be coupledto the Watermain. The hydrant-casing has in its "lower end the annular bushing, formed with the inlet'opening a, the downwardly-flaring wallof which forms the seat for the primary valve B.

The waterway leading upwardly above the valve-seat a, as seen at b, is a round cylindrical passage, within and below which the squared portion or nut (Z, as usual, by means of which to turn it. The hydrantcasing suitably above the valve-seat a is constructed with the spider-frame 6, having the central socket-hole f, through which fits for rotation an upper portion 9 of a screw-shaft, this part having above the portion 9 the portion 9 which is in the form of an enlarged hub having extending downwardly therewithin from its upper end the central polygonal socket y in which engages the correspondingly-shaped lower end portion g of the operating-shaft D. The upper half or portion i of the screw-shaft has its threads comparatively quick or coarse, while the lower portion j of this shaft has its threads finer and slower than those of the portion 6.

The stem or shank m of the primary valve Bis, in effect, anut, the same having internal screw-threads corresponding to and engaging with the finer screw-threadsj of the difierentially-threaded shaft.

The secondary valve 0 is constructed annular, so as to play sleeve-like over the shank or stem m of the primary valve, and connected to the hub of the secondary valve are the depending arms 71 of a yoke, the upper uniting and central portion 42 of which is also in substance a nut, it having internal screwthreads corresponding to and in engagement with the quick threads i of the screw-shaft. Both valves being, as shown in Fig. 1, in their opened positions and brought the one closely near or against the other, by properly turning the operatin -shaftD both valves will be moved upwardly; but the secondary valve 0 will enter within the cylindrical bore next above the valve-seat and check the fiow of the water through the hydrant considerably before the main valve reaches its seat, and this manner of preliminarily checking but not absolutely preventing the flow of water through the hydrant and amply in advance of the seating of the main valve establishes such conditions of the water in the main behind the valve as obviates the water-hammering, which is not only objectionable, but destructive of the valve appliances. Of course the turning of I the rotatable operating part D in the reverse direction causes as the primary valve moves downwardly to its opened position the secondary valve to move downwardly faster, so as to overtake and be next to and as a part of the main valve, whereby the inlet-opening may now be as little obstructed as possible, it being understood that if the secondary valve were to move downwardly only the same distance as that of the movement of the primary valve it would even when the primary valve were fully open occupy more or less of an obstructing position in the inlet of the waterway. The same idea of means is illustrated in connection with the waterway in and through the faucet, (shown in Sheet 2,) although the details and arrangements of the parts are somewhat modified, and in Fig. 4 A represents the casing, within which is the seat a for the primary valve B while the secondary valve closes into and opens rearwardly from a secondary bore or portion of the waterway in advance of the valve-seat inlet and between the latter and the discharge-nozzle.

The rotatable operating device D comprises two eccentrics i and j one of which is not only eccentric to the other, but of different size.

The stem m of the primary valve has a ring-shaped extremity which embraces the smaller eccentric, while the stem n of the secondary valve 0 has a ring-shaped head which embraces the larger eccentric, and the secondary valve is recessed, as indicated at q, to embrace the stem of the primary valve, and the whole arrangement is such that on the turning of the operating-spindle D the larger eccentric causes simultaneously a longer extent of movement of the secondary valve than is imparted by the smaller eccentric to the primary valve.

Other variations and departures from the detailed constructions and arrangements shown may be made under and within the scope of my invention without departing from the spirit thereof.

Of course it is understood that the nuts or screw-engaging extensions m and n of the primary and secondary valves are constrained against rotational movements and yet in a manner to permit of their axial movements, and the stem or extension m is provided with a lateral arm having a runner in which engages and slides along a way at, formed on or secured vertically to the inner wall of the hydrant-casing, and the opposite side members it not the yoke extension of the secondary valve have rotation-preventing engagements against the opposite sides of the internally-threaded stem of the primary valve.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. A valved appliance having a waterway therethrough, a primary valve for absolutely closing said waterway, a secondary valve movable to partially close, and to leave clear, the waterway, a rotatable operating part, means between the latter and the primary valve for opening and closing such Valve on the turning of said operating part, and additional means between said operating device and the secondary valve, for operating, on the turning of the rotatable part, the latter valve with a longer extent of movement than mary valve a position adjacent, but above and separated from the primary valve, and its location in the cylindrical portion of the waterway above the valve seat inlet, and nearly, but not completely closing said cylindrical portion of the Waterway, screw-engaged with the quicker-acting portion of the differential screw, and operative, by the action of the differential screw to open the primary valve, to assume a position below the valveseat inlet, and of less separation from the primary valve, for thepurpose set forth.

3. A hydrant having a waterway, with a valve-seat inlet at its lower portion, and with a cylindrical formation of its passage next thereabove, a differential screw and means for rotatingit, a primary-valve screw engaged with the lower, slower-acting portion of said screw, adapted to fully close, and to open downwardly from,the valve-seatinlet, the sec ondary valve constituted by a disk of slightlyless diameter than the aforesaid cylindrical portion of the waterway, having, in the normal closed, and partially-closed, position of the primary valve, a position of obstruction in said cylindrical portion of the waterway, above, and separated from the primary valve, and screw-engaged with the upper, quickeracting portion of the difierential screw, and means for preventing the primary and secondary valves against rotational movements,

substantially as and for the purposes set forth.

4. A hydrant, having a valve-seat inlet at its lower portion, andhaving the waterway next thereabove of a cylindrical formation, and provided with a vertical runner-way in its inner side, a differential screw and means for rotating it, a primary valve having an upstanding internally-threaded stem m, which screw engages the lower and slow-acting portion of the differential screw,provided with lateral arms, having the portion m engaging the said vertical runner m a centrally-apertured disk, movable vertically on the exterior of said valve-stem m, and of a diameter slightly less than that of the said cylindrical portion of the waterway, and having vertical extensions n, provided with the nut n screw-engaging the upper and quicker-acting portion of the differential screw, said extensions 72 having a non-rotatable engagement with the exterior of said valve-stem m all substantially as described and shown, and for the purposes set forth.

Signed by me at Springfield, Massachusetts, in the presence of two subscribing witnesses.

JOHN J. SULLIVAN. Witnesses:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2688976 *Jan 15, 1951Sep 14, 1954J A Zurn Mfg CoNonfreezing hydrant
US2690767 *Aug 23, 1949Oct 5, 1954Electro Hydraulics LtdSelector valve mechanism
US5201338 *Nov 20, 1991Apr 13, 1993John C. Kupferle Foundry CompanySystem and device for flushing water mains
US6868860Dec 4, 2002Mar 22, 2005Davidson Hydrant Technologies, Inc.Fire hydrant with second valve
US7055544Nov 23, 2004Jun 6, 2006Davidson Hydrant Technologies, Inc.Fire hydrant with a second valve
US7174911Nov 2, 2005Feb 13, 2007Davidson Hydrant Technologies, Inc.Fire hydrant with second valve
US7240688Mar 2, 2006Jul 10, 2007Davidson Hydrant Technologies, Inc.Retrofitting a fire hydrant with secondary valve
US7428910Mar 9, 2006Sep 30, 2008Davidson Hydrant Technologies, Inc.Breathable fire hydrant rod
US7575017Oct 6, 2006Aug 18, 2009Davidson Hydrant Technologies, Inc.Wet barrel fire hydrant system with second valve
US7753065 *May 7, 2007Jul 13, 2010TAP Security, LCHydrant backflow restriction system
US7775231Aug 17, 2010Davidson Hydrant Technologies, Inc.Retrofitting a fire hydrant with a replacement hydrant body containing a secondary valve
US20040123992 *Dec 4, 2002Jul 1, 2004Davidson Thomas DeweyFire hydrant with second valve
US20050115609 *Nov 23, 2004Jun 2, 2005Davidson Thomas D.Fire hydrant with a second valve
US20060108002 *Nov 2, 2005May 25, 2006Davidson Thomas DFire hydrant with second valve
US20070118485 *Nov 15, 2005May 24, 2007Norbert GugerbauerInteractive contract service
US20070272300 *May 26, 2006Nov 29, 2007Thomas Dewey DavidsonPlated fire hydrant rod
US20080083458 *Oct 6, 2006Apr 10, 2008Thomas Dewey DavidsonWet barrel fire hydrant system with second valve
US20080135100 *Aug 14, 2007Jun 12, 2008Thomas Dewey DavidsonRetrofitting a fire hydrant with a replacement hydrant body containing a secondary valve
US20080245420 *Apr 8, 2008Oct 9, 2008Tom Randy DavidsonNozzle Attachment for Fire Hydrant
International ClassificationE03B9/04
Cooperative ClassificationE03B9/04
European ClassificationE03B9/04