US1520892A - Washing valve for water-closets and the like - Google Patents

Description

s. J. STEENSEN WASHING VALVE FOR WATER CLOSETS AND THE LIKE Filed Ap ril 25. 1922 Dec. 30, 1924: 1,520,892

Patented Dec. 36, 1924-.

llhliTEE STATES tartan SVERRE JOHAN STEENSIEN,

OF CHRISTIANIA, NORWAY.

WASHING VALVE FOR WATEB-CLOSETS AND THE LIKE.

Application filed April 25, 1922.

i To all whom it may concern:

Be it known that I, SVERRE JonAN STEEN- SEN, a subject of the King of Norway, residing at Ghristiania, 14 Dainplass, Ullevaal I-laveby, Norway, have invented new and useful improvements in Washing Valves for Water-Closets and the like, of which the following is a specification.

The object of the present invention is a washing valve for waterclosets and the like, Its purpose is to provide for a suitable washing directly from the waterconduit, the quantity of the water passing through the valve being unaffected by the pressure of the water. That is to say the quantity will not be reduced even it several closets connected to the same pipe are used simultaneously.

In order to obtain this purpose the time necessary for the'closing motion of the valve is made dependent upon the speed of the water. That is to say the valve is closed in shorter time when the pressure is high than is the fact when the pressur is low.

Another purpose of the invention is to provide for a suitable counter pressure when the valve is to be closed so that a mild noiseless action is obtained.

Further the purpose of the invention is to provide for a simple construction adapted to be manufactured at a low price and acting in a reliable manner.

The invention is illustrated in a suitable form in the enclosed drawing in which:

Fig. 1 shows a central vertical section.

Fig. 2 shows partly a side view and partly a central vertical section at a right angle to Fig. 1, the handle being partly broken away.

The valve casing is composed of three separate sleeves. The lower sleeve 1 has a conical part 2 adapted to form a valve seat for a conical valve and provided with an inner flange 3 the purpose of which is to be described below. t designates the discharging part of the valve. The central sleeve 5 which is by means of a screwjoint connected to the sleeve 1 is provided with an inlet nipple 6 arranged so as to take up an inletvalve 7 the stem of which projects to both sides of the valve, resting on one side in a crossarm 9 in the nipple 6 and at the opposite side in a cross arm 10 inside the sleeve 5. It will be clear that the water may pass freely on the sides of the said arms into the sleeve 5. At the Serial No. 556,464.

lower part of the sleeve 5 is arranged a gu1ding part 11 for a vertical stem as will be described below.

To the sleeve 5 is at the upper end jointed an air braking chamber 12 with an integral bottom 13 and a screw-jointed cover 14 provided with an extension 15 adapted to give place to the end of the pistonrod when the braking piston is in its end position.

In the air cylinder 12 the piston 16 travels. The piston consists of two pressing discs equipped with suitable yielding packing discs. The edge of the packing disc is bent downward in order-to yield freely as the piston travels upwards, and the edge will be pressed tfghtlyagainst the wall of the cylinder as it (the piston) travels downwards. In this manner any air from the lower part of the chamber is prevented from passing the said edge.

The piston is connected to the piston rod 18 and the pressingdisc is pressed against the packing disc by means of a nut 17, 011 the threaded end of the pistonrod coacting with a shoulder on the said rod.

20 designates a packing box, 19 a sleeve for the same adapted to prevent any leakage of air from the brake cylinder to the sleeve 5.

In the piston. is fixed a sleeve 21 as an example integral to the upper pressing disc. The sleeve projects downwards through the lower pressing disc. The lower end of the sleeve has a small hole 22 which may be closed by means of a small valve 23. The stem of the valve consists of a screwbolt 25 threaded into the sleeve 21, and provided with a side-groove. Now it will be understood that air may pass through the sleeve when the piston travels downwards the quantity passing in one unit of time being dependent upon the adjusting of the screwbolt 25 controlling the lifting of the valve 23 from its seat. This adjusting is effected easily by turning the said sleeve to a suitable degree.

The pistonrod 18 is at its lower end provided with a conical valvebody 26 adapted to contact with the seatpart 2 of the sleeve 1. At its lower end the valve 26 has an annular extension 27. The extension is pro? vided with an enlarged annular portion at a certain distance from its upper end adapted to coact with the flange 3 in order to throttle the stream of water when passing the same effecting a counter pressure and,

giving a mild contactof the valve 26 to its seat 2.

Further the rod 18 is provided with a cam portion 29 adapted to coact with the valve stem 8 when being lifted. For operating the apparatus the rod 18 has a groove 30 taking up an arm 31 which may be operated by means of a handle 82. The arm 31 is curved so that it will effect a uniform inotion of the rod when the handle 32 is turned downwards. For the same purpose the ends of the grooves are suitably rounded clearly shown in Fig. 2.

The apparatus acts in the following manner:

When washing is to be eilected the handle 32 is turned downwards. Hereby the arm 31 will lift the valve rod 18 and open the valve 26. The cam 29 will then press the valve 7 from. its seat so that a suitable discharge of water will take place. As the rod 18 travels upwards the air above the piston 16 will pass the edge 24 Oil": the yielding packing disc (of the piston) so that the resistance will be quite small.

When the handle is released the hydraulic pressure of the waterstream will act upon the upper surface of the valve 26 and will tend to close the valve. However such closing is prevented by the airbrake and may only take place gradually the air passes through the piston valve. lt will be clear, however. that the greater the hydraulic pressure is the less will the closing time become so that substantially the same quantity of water will pass before closing whether he pressure of the water is great or small.

When moving downwards the cam 29 will leave the stem 8 before the valve 26 is closed so that the valve 7 may be effectively closed by the water pressure in the waterconduit. lhe valve 26 will then approach its seat 2. Hereby the enlarged annular part 28 will pass the flange 3 so that the closing motion is effectively braked by the produced coun ter pressure. Owing to this fact a very mild closing motion of the valve 26 will be attained and any undesired shock be dis, pensed with.

Having now particularly described and ascertaine; the nature of my said invention, and in what manner the same is to be performed I declare that what I claim is:

1. In a washing valve for waterclosets and the like an inlet valve, a discharge valve, an airbrake, a cam portion on the valve stem of the discharge valve, and acting upon the stem of the inlet valve, an operating handle, a curved arm connected to the same, a groove in the rod of the discharge valve and means for effecting a counterpressure before closing the discharge valve.

2. In a washing valve for waterclosets and the like an inlet valve, a discharge valve, an airbrake, acam portion of the valve stem coacting with the stem of the inlet valve, a handle a curved arm connected to the same, a groove in the rod of the discharge valve taking up the said arm, an annular extension projecting downwards from the dis r charge valve, an enlarged portion on the said extension :1 flange in the sleeve of the discharge valve arranged so as to nearly close the passage of the discharging water when the valve is to be closed.

in witness whereof I affix my signature.

SVERR-E JOHAN STEENSEN.

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