US912599A - Flushing-valve. - Google Patents

Description

D. W. MGNEIL.

FLUSHING VALVE.

APPLIOATION FILED DB0.9,1907.

Patented Feb. 16, 1909.

3 noauto@ UNITED STATES PATENT OFFICE.

DANIEL W. MCNEIL, OF CINCINNATI, OHIO, ASSIGNOR TO THE JOHN DOUGLAS COMPANY, OF

CINCINNATI, OHIO, A CORPORATION OF OHIO.

FLUSHING-VALVE To all whom 'it may concern:

Be it known that I, DANIEL W. MCNEIL, a citizen of the United States of America, and /re'sident of Cincinnati, county of Hamilton, State of Ohio, have invented certain new and useful Improvements in Flushing-Valves, ol y which the following is a specification.

My invention relates to that kind ol' flushing valve which is provided with a lever the moving of which admits wat'er from thc mains to a closed tank so that the water flowing into said tank compresses the air therein, the water continuing to flow into the tank until the pressure therein is equal to the pressure in the mains and in which the flush- 1n f is done by the water from the tank, thus fe when the pressure upon the lever is released.n

The olfect of my invention is to provide a valve of this character which has as few parts as practicable, so that it may be made at less cost and in a more, compact forni and is less liable to get out of order than those heretofore used, and which is provided with a ready means for regulating the rate of discharge of the flushing water` This object is attained by the means described in the specification and illustrated in the accompanyin'hr drawings, in which,

Figure 1 is a side elevation ol' a closet bowl, provlded with a. lushing valve embodyingr my invention, the tank being,r omitted. Fig. 2 is a central sectional view of the valve taken upon line of Fig. 4, showing the valve in the position itoccupies after the water in the tank has reached the. pressure ol' that in the mains. Fig. 3 is a view similar to Fig. 2 but showing the position to which the valve is carried h y the water in the llushingr operation. Fig. 4 is a view takV/ upon line z-z ol Fig. 2. Fig'. is a detai view of the rotatory push rod to which tluy lever is connected, and the valve for controlling' water from the mains. Fig. 6 isfa sectional detail view of a modified l'orln ol' the main valve. Fig. 7 is a similar view ol' the regulatingr screw.

, 'lhc valvehousing consists of a rylindrieal shell, A, having near its top an exlerorly screw-threaderl` annular extension, a, which is coupled by a mit to a pipe, B, which leads to the water tank-mot shown. Below the valve seat, u", the housing has a port, rz, surrounded by a lateral annular extension, a, 5.-', which joins the discharge spout into lhe Alo Specification of Letters Patent.

Application filed December 9, 1907.

.f", within the llange, r

Patented Feb. 16, 1909.

Serial No. 405,746.

bowl, C, which is of ordinary constluction. Upon the side of the cylindrical housing, A,

is formed a smaller horizontal cylindrical housing, e, for the valves which control the entrance of the water from the mains into the housing, A. Housing, e, has upon its interior two central annular flanges, e', e2, between which is a port, e, which leads into the lower chamber of housing, A.. One end of the housing, e, is connected by a pi e, e, to the mains. rihe entrance of water rom the pipe, e4, to the port, el, is controlled by a valve, E, which 1s normally held to its seat,

e, hy a coiled spring, er. lfithin the end of the housing, e, opposite to the pipe, c, is a bonnet,f, within which is seated the pushrod, F, upon. whose end is secured a lcver,f, which is connected by arins,{f2,f", tothe seat,

c, w hose forward end is heh normally raised from the howl by means oi a spring, not shown. The inner end of the push rod has a rei-ess into which the valve stein, e, of the valve, E, Jrojects, so that an inward movement of the rod, F, will raise the valve, E, from its seat. The means whereby a rotan tion of the rod, F, will cause it to move in ward, is as follows: Bonnet, f, has beveled notcl1esf,{,{5, upon its inner end, and rod,f, has lieve ed ugs,f,fl, which project into the notches,f, f5, so that a rotation of the rod, F, will 'cause the lugs,f,f7, to ride inward upon bevcls, f, and carry the rod inward and push. the valve, E, oill its seat. Rod, F, has an enlarged portioinf", which in the forward position ol" the rod projects into the perforation in the llauge, e', and closes the same, but whirl: has its end, f, tapered so that when the rod is in its normal position there is a water passage hetueeu the eluhf", and the ihiizgr, r. fl'herel'ore when 95 pressure is brought upon the lever, j", the rod, F, is pushed inward rarrymg the valve,

E, oll' its seat, e2, and carrying the portion,`

so that water `from the` mains will then iroug'h the pipe, r1(1( r, apd port, c, into the bottom oiI the housing, A, and that when the pressure u )on the le\e|,f, is released, the rod, F, wil he retracted, the valve, li, he carried to its seat by the spring', e, and communication estab- 105 lished hetnet-1 the lower chamber of the housing and the outlet, a, through the port,

e, the perforation within the ilange. e', and the port, a4, which connects the interior of housing, c, with the discharge port, a, as

shown in Fig. 4. The size of the opening, ai, is regulated by means of a split screw, a5, the screw having a diagonal slit, a, in it, as

shown in Fig. 7, by which the rate of floi'r't through the port may bc regulated.

Against the valve scat, a', the main valve, G, is seated. Valve, (l, has a hollow valvesteln, g, formed integral with which is a piston, g', against which a cup leather, g2, is held by means of a nut, y. Within the valve stein, g, is a secondary hollow valvestern, h, which carries at its u per end a valve, H, beneath which the valrve stem, z, has perforations, h', h. They movement of the valve-stem, h, within the valve-stem, g, is limited by means of a transverse pin, ha.

The o eration is as follows: vWhen Water enters t e valve housing; port, e, the pressure under g, raises the valve, G, to its seat, a', and raises the valve, H, from its seat until the pin, h3, contacts the lower end of the valvestem, g, so that the perforations, 7L', h2, stand above the stem, g, and water from the mains then passes into the pipe, B to the tank until the pressure therein has reached that of the pressure in the mains. The valve, H, will then by its own weight all to its seat, thus cuttinl oil' connnunication between thetank, B, an the lower chamber within the housing, A, below the cup leather, g2. When the pressure upon the lever, f is released by the raising ot"t`he-seat, c, the valve, E, resumes its seat against the flange, e2 and the portion, j, is withdrawn from the perforation within the flange, e and the water below the cup leather, q2, flows out through the perforation, e3, and the port, a, and the split nut, af,into the discharge outlet, a3, the pressure below the cup leather, g2, thus being relieved, the pressure in the tank will carry the valve, G, and the valve, H, downward, opening communication between pipe, B, and the discharge outlet, a, into the bowl. The rate at which the valve, G, will move away from its valve seat, a', will be in direct proportion to the rate at which the discharge from below the cup leather, g, takes place, which, as aforedescribed, depends upon the position of the split screw, a5, in the port, a. The size of the opening between the valve, G, and its scat, a', is thus smallest when the pressure in thc pipe, B, from the tank is greatest and as the pressure in the pipe, B, from the tank becomes less, the distance of the valve, G, from its seat, a, becomes greater, and thus the rate of the discharge of the flushing water is made uniform, or as nearl so as it may be desired to have it. To enalile a per son to re late the position of the screw, as, the annu ar extension, as, is rovided with the cup leather,

Aan opening and a screw, ai, 1n a inement with the screw, a, as shown in Fig4.

In the modification shown in Fig. 6, the valve, H', which corresponds to valve, H,

A, through the shown in Fig. 2, is made to project up int.V the annular extension, a, in order to retard the initial discharge of the water.

What I claim is:

1. A flush valve having a housing with an inlet and a discharge o ening a ipe connecting the housing wit a c ose tank in com-bination with a valve seat in the housing between the pipe and the dischar e opening, a main valve to contact the va ve seat, a valve stem projecting from the main valve into the housing, a piston upon the valve stem and contactin the housing between the inlet opening an the discharge opening,

the main valve having connecting the inlet leading to the tank, a secondary valve seate within the opening inthe main valve and adapted to be opened by the water from the mains to admit water to the tank, and closing the opening automatically when the pressure in the tank becomes equal to that in the mains and a valve at the inlet opening for controlling the flow of water 4from the mains.

2. In a flush valve having va valve housing with an inlet and a discharge opening, a pi e connecting the housing witha closed tan in combination with a valve seat in the housing between the pipe and the discharge opening, a main valve to contact the valve seat, the main valve having a channel extendingthrough it and its valve `stem for connecting the inlet and the pi e leading to the tank, a piston upon the val)ve stem and contactingI the housing between the inlet opening and the dischar e opening, a. secondary'valve contacting t e end of the main valve to close its opening and having a tubular stem extending into the main valve stem and having discharge openings adjacent the secondary valve for admitting water to the pi )e and a valve in the inlet opening for contrdlling the flow of water from the mains.y

3. A flush valve having a housing with an inlet and discharge opening,`a pi e connecting the housing with a closed tan in combi- Vnation with a valve seat in the housing between the pipe and discharge opening, a main valve to contact the valve seat, a valve stem projecting from the main valve into the housing, a piston upon the valve stem' and contacting the housing between the .inlet opening and the discharge opening, the housing having a `channel connecting the inlet opening and the discharge opening, the main valve having an opening through 1t connect-- ing the inlet opening and the pipe leadin to the tank, a secondary valve seated wit iin the opening in the main valve and adapted to be opened by the water from the mains to admit water to the tank, a third valve and a means whereby the moving of the third valw in one direction puts the mlet opening into an opening through 1t communication with the mains and closes openlng and the pipe the channel between the inlet opening and the discharge and the movin of the third valve in the other direction c oses the communication between the inlet opening and 5 the mains and opens the channel between the inlet o ning and the discharge.

4. A iin` valve having en inlet opening at one end, an opening at the opposite end to be connected to a closed tank, and a discharge le between the inlet opening and the tank opening a valve seat between the tank opening and the discharge opening, a main valve seated against the valve seat and having e. piston to contacttlie housing between the 15 discharge opening and the inlet opening, the main valve having a channel thro h it, a secondary valve within the channe to be opened by a pressm'e from the mains, a water way connecti the chamber between the 2n piston and the inlet with t-he discharge o nmg, a means for regulating the size the water-way, a third valve a means whereby the movementof the third valve in one direction puts said chamber into communication 25 with the mains and cuts olf its communication withthe discharge, and the movement of the third valve in the opposite direction closes the communication said chamber with the mains and opens its communication se wit-litho 5. A flushing valve to be interposed between the mains and a closed tank and having a main valve with a channel therethrou h and a. secondary valve seated within t ie channel in the main valve and adapted to be raised by the water from the mains and to resume its seat when the pressure in the tank equals that in the mains.

6. A vertical valve lxousin a valve there in havi two disks which wien the valve is 4o seated divide the housing into three chambers, the upper one communicating with a closed tank, the central one with a. bowl, and the lower one receivinv water from the mains, and when the valve is lowered puts 45 the upper chamber into communication with the bowl, a channel through the valve putting the upper and lower chambers into communication, a secondary valve in the channel in the main valve to be opened by pres- 5o sure from the mains, means of communica tion between the lower chamber and the bowl: and a third valve for regulating commnmcation between the lower chamber and the mains and regulat' the communication 55 between the lower cham r andthe bowl.

DANIEL W. McNE Witnesses: l

WAL-ren F. MURRAY, Acxns Mcomcx.

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