US 901583 A
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W. H. BOWMJAN. AUTOMATIGALLY CLOSING VALVE FOR FLUSHING WATER oLosETs, Aw l APPLICATION FILBB 176,27, 1906. 901,583, Patented Oct. 20, 1908.
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WALTER H. BOWMAN, OF ELMHURST, ILLINOIS.
AUTOMATICALLY-CLOSING VALVE FOR FLUSHING- WATER-GLOSETS, &c.
Specification of Letters Patent.
Patented Oct. 20, 1908.
Application filed August 27, 1906. Serial No. 332,212.
To all whom it may concern:
Be it known that I, WALTER H. BOWMAN, a citizen of the United States, residing at Elmhurst, in the county of Dupage and State of Illinois, have invented new and useful Improvements in AutomaticallyeClosing Valves for Flushing lVater-Closets and the Like, of which the following is a specification.
The object of my invention is the production of a valve device, which, after it has been set in operation, shall discharge a predetermined quantity of water or other liquid and then automatically close; said device to be especially adapted for flushing water closets, urinals and the like, though it may be used in other connections where a certain quantity of liquid is to be intermittently discharged.
The invention consists in certain novelties of construction and combinations of parts as hereinafter set forth and claimed.
The accompanying drawing illustrates one example of the physicalembodiment of the invention constructed according to the best mode I have so far devised for the practical application of the principle.
Figure 1 is a vertical section of the device showing the relative locations of the parts when in closed position. Fig. 2 is a similar vertical section in elevation showing the relative locations of the parts when the valve is in a full open position and about to commence the operation of closing. Fig. 3 is a cross section on line w- Fig. 2.
Referring to the several figures, the numeral 1 designates a cylindrical body portion internally threaded at 2, having a bottom wall 3 provided with an opening 4, projecting into which opening are several guide lugs 5, a lower externally threaded flange 6, and a side discharge opening 7 threaded to receive a delivery pipe 8' as shown; 9, is a frusto-conical body threaded at the ends, the top threads engaging the threaded flange 6 and the bottom threads adapted to receive the end of a water supply pipe; 10, a piston fitting the inner surface of the cylindrical body portion and provided with a relief vent or groove 11 at its external surface; 12, an opening at the center of the piston within which is secured a tube 13, the lower end of which is guided by the lugs 5 at the bottom of the body portion; 14, a threaded valve upon the lowerend of the tube embracing a packing 15 which bearsl against the flange 16, a downwardly projecting tube 17 having a slot or opening 18 in its side wall, and two projecting lugs 19 between which is pivoted a lever 20, one end of the lever being located within the slot 18 of the tube and the other end provided with a movable headed screw bolt 21 which is ad! justable; 22 is an operating rod extending through the tube 13 and comprises the top projecting part 23, passing through a nut 24 upon the removable cap or cover 25 which latter closes the top end of the cylinder or body portion, and the lower part 26 to which at its extreme end is removably secured a conical nut 27 having a packing 2S which bears against the projecting end of the tube 13 as shown. The lower end of the part 23 at the point 29 is circular in cross section and of the same diameter as the passage in the tube 13, but below the point 29 the metal is removed from the sides of the rod so as to provide an opening or openings 30, 30 for the passage of liquid. The part 26 is of a similar construction throughout its length and for the same purpose.
`The meeting endsof the two parts 23 and 26 of the operating rod are cut away at 31 and 32 so that the projecting part 33 hooks over or interlocks with the projecting part 34 and thus forms a sliding joint, whereby the part of the rod 23 may be lowered some distance without imparting motion to the lower part 26 of the rod. The top end of the part 23 is provided with a knob 35 and between this knob and the jam nut 24, and
,upon the rod, is located a spiral spring 36 which normally holds the operating rod in a raised position with the packing 28 bearing against the end of the tube 13, as shown.
The modus operandi is as follows: The several parts of the device occupying the relative positions shown by Fig. 1, liquid under pressure in the frusto-conical lower part 9 cannot pass to the pipe 8, as is obvious. To effect a limited discharge of the liquid the hand is placed upon the knob 35 and the upper part of the rod lowered against the pressure of spring 36 far enough to engage the lower part of the rod and force it downwardly a suflicient distance to bring the conical nut 27 below the end of the lever 20, which lever then holds the nut and packing away from the end' ofl tube 13 thus allowing the liquid to fiowup the interior of the said tube by way of the passages 30 to the inclosed space 37 above the piston 10. The round portion of the rod obviously closes the tube and prevents the flow of liquid until the conical nut 27 has engaged the lever 20. The hand then being removed from the knob the spring' will raise the part 23 of the rod and withdraw the round part of said rod at Q9 from the tube. The liquid flowing intoV the space 37 will force the piston 10 with the tube 13 downwardly and carry the valve 14 with its attachments away from its seat and open up a passage for the liquid through opening 4 to pipe S, inasmuch as the area of the piston 10 is greaterthan the external area of the valve 14. rlhe piston 10 continues to travel downwardly carrying with it the tube 13, the valve 14, the lever 20, the operating rod, and the conical nut held by the lever -away from the end of the tube 13, until they occupy the relative positions shown by F ig. 2 where the head of the screw bolt 21 rests in frictional contact with the inner inclined surface of the frusto conical part 9 of the device. A slightly farther travel of the piston rotates the lever and releases the conical nut and lever therefrom, which latter by the action of the spring is raised and closes the opening to the tube 13. The liquid in the space 37 slowly discharges by way of the vent 11 and the spring raises the piston and the tube brings the valve 14 to its seat. The quanti-ty of water discharged may be regulated by the size of the opening 4, or the size of the vent 11, or the capacity of the coiled spring upon the operating rod, or by adjusting the set screw 21.
While I have illustrated and described only one example of the physical embodiment of m-y invention I do not thereby intend to limit the scope thereof to such example in details of construction, inasmuch as changes, additions, and substitutions of parts may be introduced in practice which will not constitute substantial departures.
The operating rod may in some cases be` made in one instead of two pieces, the tube 17 be omitted, though its presence is desirable to aid in closing the valve 14, and the lever 2O be otherwise disposed and still perform its functions. Such and other modifications may be made and the device perform its functions of intermittently discharging the liquid under pressure.r
What I claim is 1. The combination in a valve device, of a cylindrical body portion having a bottom with an opening for the admission of liquid, and a discharge opening; a piston within the cylindrical body; a valve adapted to close the opening for the admission of liquid;
atube joining the piston and valve whereby the piston and valve will move together; a valve for controlling the flow of liquid through the tube to the space above the piston means for opening said valve; means for holding said valve in an open position and for releasing the said valve and allowing it to close when the piston has moved downwardly a suitable distance within the cylindrical body portion of the device.
2. The combination in a valve device, of a cylindrical body having a bottom with an` admission opening, and a discharge opening; a piston within the cylindrical body; a valve for the admission opening; a tube connect-V ing the piston and valve so they will move together; a valve for controlling the flow of liquid through the tube to the space above the piston; means for opening said valve; and a lever mechanism for holding said valve open until the piston has moved downwardly a predetermined distance.
3. The combination in a valve device, of a cylindrical body having a bottom with an admission opening, and a discharge opening; a piston within the cylindrical body; a valve for the admission opening; a lever mechanism carried by said valve; a tube connecting the piston and valve; an operating rod located within the tube; a valve at the lower end of the rod controlling the flow of liquid through the tube to the space above the piston; and means for operating the said lever mechanism when the piston moves downwardly within the cylindrical body.
4. The combination in a valve device, of a cylindrical body having a bottom with an admission opening, and a discharge opening; a piston; a valve for the admission opening; a tube uniting the piston and valve; an operating rod located within the tube and extending through the cap which closes the top end of the cylinder, said rod having a knob between which and the said cap is located a spring and also a valve at its lower end controlling the flow of liquid through the said tube; mechanism for holding the last mentioned valve open; and means, consisting of a frusto-conical body secured to the end of the cylindrical body, for actuating the said mechanism when the piston moves downwardly.
5. The combination in a valve device, of a cylindrical body having a bottom with an admission opening, and a discharge opening; a piston; a valve forthe admission opening; a tube connecting the piston and valve, which latter carries a cylinder with an opening therethrough and a pivoted lever with one arm located within the opening in the lylinder; an operating rod with a sliding ljoint within the tube; a spring upon the upper end of the rod; a valve at the lower end of the rod controlling the flow of liquid through the tube; and a frusto-conical body secured to the end of the cylindrical body; in substance as and for the purpose set forth.
6. The combination with a valve device having admission and discharge openings, of a piston, a valve, means connecting the said piston and main valve so Water can pass through the admission opening; and
means for holding said supplemental valve 15 away from its seat and lalso releasing the same When the main valve has traveled doWn- Wardly a predetermined or suitable distance. In testimony whereof I aHiX my signature in presence of tWO Witnesses.
VALTER H. BOWMAN. Witnesses ALONZO G. FISCHER, GEO. H. FISCHER.