US837077A - Closet flush-valve. - Google Patents

Description

No. 837,077. PATENTBD Nov.I 27, 1906.'

H. KUPSCH.

GLOSET PLUSH VALVE.

APPLICATION FILED'MAY 11, 1903. RENEWED MAY. 5, 190?.

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H.KUPS0H.

GLOSET FLUSH VALVE.

APPLIoATIoN FILED MAY 11, 190s. RENEWBD MAY 5, 19'06.

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CLSET FLUSHNVALVE.

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Specification of Letters Intent.

Patented Nov. 27, 1906.

Application led May 11, 1903. Renewed May 5, 1906. Serial No. 315,305.

To all whom it may concern.-

Be it known that I, HERMANN Kursen, e citizen of the United States, residing et Chicago, in the county of Cook und Sta-te oi" lilinois, have invented certain new und useful Im rovements in Closet Flush-Valves und l do i ereby declare the following to be e full, clear, and exact description of the invention, such es will enable others skilled in the ert to which it epperteins to Ineke and use the seme.

This invention relates to e novel construction in e closet iiush-valve, the object being to provide e valve which connects directly with the Wetenservice end will feed e measured uentity et water at each operation without t 1e intermediecy of e tank; and it consists in the features of construction and combinetions oi ports hereinafter fully described and claimed.

in the accompanying drawings, illustre-ting my invention, Figure l is e/centrel longitudinel section of e valve constructed in uccordonce with my invention. Fig. 2 is o similar section showin the operuiing parts in another position. vig; 3 is e sectional view on the line 3 3 of Fig. 2, showing the tube end velve-ectuuting devices mounted therein to bring the latter to e convenient, point to be operated.

My seid device consists of o practically cylindrical csi-sing 1, provided with un exten nelly-threaded nipple 2, by menus of which it .is connected with the water-service pipe, endprovided et its lower end with u union 3, by means oi which it is connected with the closet-bowl or other device' to he ilushcd or fed. inmediately below the witter-inlet the said casing is internally ennuhirly reduced, as at 4, seid reduced portion being provided at its upper end with an upwardly-projccting annuler shoulder 5, forming e valve-sen t upon which the piston-vulve G sects. The seid valve 6 consists of o truuk-piston provided et its lower ond with a reduced exten- Sion 7, snugly iitting within the reduced portion 4 of' said easing, while above suid extension 7 en annuler shoulder 8 is formed, which receives a rubber or other llcxible washer El, which seats on seid vulve-sent 5. 'lhc suid valve (i is hollow ut its cuds nud is provided lbetween its ends with e partition-well 1t),

hevinfr e diinnetricnl nsszwc 11 bored therethrough, which communicates with e central threaded recess 12 in the upper face of seid partition-wall 10. Said recess 12 receives e screw 13, which acts as e valve to control seid pessege 11, and is provided with e central opening 14, throng i which communication is established between said passage 11 end the chamber ebove the seid valve 6 At opposite ends o'l said passage 11 seid velve 6 is provided with longitudinal grooves 15 end l, seid groove 15 being short und extending from the shoulder S to a. point slightly above the vmouth of the passage 11, while seid groove 1S extends trom seid shoulder 8 to a point ndjeeifnt the upper end of said valve 6.

The sind vuivc 6 lits snugly within seid casing i above the water-inlet, end its upward movement is limited by the lower end of :i oep 17, extending into seid casing 1 at its upper end, sai-id cup forming en cir-cheniber in the seid upper end of scid casing. Below the-lower end of scid cap 17 seid casing is unnularly enlarged, :is et 18, so that said piston when nt the upper lunit of its movement extends into suid enlarged portion 18 a sullicient distance to (reuse communication to be established between the waiter-inlet and seid choiuber 18 through the longitudinal groove 16. (Rnuinunicnting with sind 'chainber 1S is :i radial nipple 19, having en annulnr tupered shoulder 2O et its inner end, which loruis u vulve-sent. The Suid nipple inieruully threaded et its outer end to rcceivc n` sleeve 21, which is provided at its inucr end with :in nunuhirly-rcduced portion 22, seating on scid vnlvdseut 20. The seid reduced portion 22 provided with u eentrul passage 22%, which communicates, by menus ol' rodiul rmssngcs 2li, with the :innulur cluuuhcr 25 between suid reduced portion 22% und the inner woll ol' the nipple 19, which in turn coiuuluui'cutcs with the interior ol' the casing l below the vulve-sect 5 by moons ol` [he duct 22o, formed in thc woll of smid casing. 'lhe scid passage 24 is C011- trollcd by :i vulve 37, the stein of which posses into seid slccve 21 oud carries on ndjustublc colhir 2S :it its rezu end, between which nud the inner cud woll 2S) ofsuid sleeve :i spiral spring il() is interposed, which uormollyv holils suid vulve 27 closed. The scid cup 17 is hollow und forms en nir-cheniher ubove thc chumbcr 18, which serves to the extreme upper limit of its movement.

.and partly by the flow o water into the cushion the force of the water as the valve 6 shuts oif the ow, thus absolutely preventing the pounding usually attendant upon shutting oif the flow of water when the pressure is high. In the lower end of said cap are notches which permit the escape of water from the chamber 18 when the valve 6 is atv As the said casing is generally so located relatively to the closet-seat as to be very inconvenient of access, I- have found it advisable to provide means convenient to the person to operate the valve, and to this and I secure a curved tube 31 in the outer end of said sleeve 21, in whicha closely-coilei spring 32 is mounted, which bears against the outer face of the collar 28 at one end and at its other end against the inner end of the shank 33 of a button 34, movable longitudinally in a cap 35 at the free end of said tube 31, said sprmg forming a iiexible shaft by means of which pressure on said button 34 is communicated to the valve 27 to open the latter against the action of said spring 30.

The operation of my device is as follows: In the position shown in Fig. 1, in which the valve 6 is closed, the pressure in the chamber 18 is equal to the ressure in the service-pipe by reason of the act that the said chamber 18 communicates with the service-pipe through the passages 11 and 14. AThe service-pressure acts upon the piston 6 at itsl lower end only upon the free portion of the shoulder 8, while it acts upon the entire cross-sectional area of said piston at its upper end, such differential areas obviously serving to hold said valve firmly on its scat. By opening the valve 27 the pressure on the upper end of the piston` is immediately released, the water contained in the chamber 18 passing out through the passages 23, 24, 25, and 26, and such release of pressure causes the valve 6 to be raised to the upper limit of its movement, thereby causing the service-pipe to be directly connected with the closet-bowl. Se long as the valve 27 remains open the valve 6 will vremain at the upper limit of its movement; but as soon as said valve 27 is closed said valve 6 will begin its downward movement, artly by gravity chamber y18 through. the passage 11 and groove 16, the rapidity of its downward movement being determined by the rapidity with which the chaiuher 18 can be refilled with water,

It will be noted that whenv the valve 6 is at the upper limit of its movement, shown in Fig. 2, the chamber 18 communicates with the service-pipe not only through the passages l1 and 141, but also through the groove l 16. Hence until the upperendof said groove i 16 passes below the shoulder at the lower end of chamber 18 the flow of water into the latl ter will be rapid and cause said valve 6 to l move rapidly downward. After said groove 16 has passed below said shoulder, however, the movement of the valve 6 will be very gradual, the rapidity ofA such movement being determined by the adjustment of the screw 13, which regulates the iiew of water through the passage 11. Then the lower end of the extension 7 of said valve 6 has passed the valve-seat 5, the iushing flow of water will cease. As such liow is very rapid, it frequently happens that the trap of the closet is siphoned out, and to avoid its remaining empty I provide perforations 36 in said extensions 7 through which a sulicient after-flow of water is assured to fill the trap and provide sullicient water in the closetbowl to render same sanitary. After said perforations 36 have passed the valve-seat 5 the after-flow ceases and valve 6 becomes firmly seated by reason of the equalization of pressures in the service-pipe and chamber 18,

which, by reason of the dill'erential areas acted upon thereby, as before stated, causes the valve 6 to be securely held on its seat.

In F ig. 1 I have shown the valve 6 on its seat and .the vlave 27 open, which would cause the valve 6 -to be instantaneously raised, while in Fig. 2 I have shown the valve 6 atlthe upper limit of its movement and the valve 27 closed.

My device is exceedingly simple and ellicient and very easily operated.

' I claim as my invention- 1. In a closet 'flush-valve, the combination with a trunk-piston valve in the body thereof, a valve-seat of smaller diameter than said valve, a guide-passage in which said valve moves, and a fluid-pressure chamber above said gui .le-passage of larger diameter than the latter., of a water-inlet above said valveseat, a passage through said valve connecting said water-inlet with said Huid-pressure chamber, an auxiliary valve controlling the pressure in said fluid-pressure chamber', and an auxiliary passage in said valve terminating between the ends of the latter and controlled by the movements thereof,'said auxiliary passage heilig adapted to restablish secondary communication with said fluid-'pressure chamber when said `valve approaches the upper limit of its movement to accelerate the initial downward stroke of the latter,said auxiliary passage being closed before said valve reaches the lower limit of its movement to cheek the closing movement thereof.

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2. In a closet 'flush-valve havin a iluidpressure-actuated piston-valve, an( a cylindrieal guide-chamlmr in which said valve is movable, a fluid-pressure chamber above said valve ol larger diameter than the latter, an auxiliary valve controlling said chamber, said valve having passagesconnecting seid {luid-pressure chamber with the water-inlet,

one of said passages being in the body of said valve and the other thereof on its periphery,

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said lasl'faemed essage extending `from the fluid-pressure chamber to accelerate the inlower end of sei valve to a point midway tial closing movement of seid valve. :o between the ends thereof and being closed at In testimony whereof I affix my signature its upper end by the wall of seid guide-pesin jresenee of two witnesses.

sage when seid valve is et or neer the lowe` llJRlWliNlv KUPSCH. limit of its movement, -and adapted, when Witnesses: seidw'elve is at the upper limit of its move- RUDOLPH WM. LOTZ,

'ment to increase the flow of Water inte seid E. F; WILSON.

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