US 1000729 A
Abstract available in
Claims available in
Description (OCR text may contain errors)
FLUID PRESSURE REGULATOR.
APPLICATION FILED APRJB, 1910.
1',000,729. Patented Aug. 15,1911.
J5 J6 ME /leave? J/zacaiwr Z I Azymsi laet/i'lez QQMW J I gZ/Aiafrzey .ifoLUMul i'PLANOflRAPH C0. WASHINGTON. 1) c4 AUGUST GLOEGKLER, CHICAGO, ILLINOIS.
Specification of Letters Patent.
Patented Au 15, 1911.
Application filed April 18, 1910. Serial No. 556,109.
To all whom it may concem:
Be it known that I, AU'cUsT GLonoKLER, a citizen of the United States, residing at Chicago, county of Cook, and State ofIllinois, have invented certain new and useful Improvements in Fluid-Pressure Regulators, of which the following is aspecification.
My invent-ion relates to fluid pressure reg ulators and has for its object the production .of a device of this character which will be of durable and economical construction and quick-acting, sensitive, and efficient in operation.
Other objects will appear hereinafter.
With these objects in view my invention consists in a pressure regulator character- 1zed as above mentloned and in certain details of construction and arrangement of parts all as will be hereinafter fully described and particularly pointed out in the appended claim.
My invention will be more readily understood by reference to the accompanying drawings forming a part of this specification, and in which,
Figure 1 is a central longitudinal sect-ion of a regulator embodying the preferred form of my invention, and Fig. 2 is a transverse section taken on line 00-0 of Fig. 1.
Referring now to the drawings 1 indicates the body or casing of the regulator which is formed of the upper and lower parts 2 and 3 respectively, the latter being secured together by means of bolts 1 and nuts 5.
6 indicates the inlet chamber which communicates with the fluid supply pipe7, the latter being threaded upon a nipple 8 which surrounds said inlet chamber.
9 designates the outlet chamber from which leads the outlet or delivery pipe 10, the latter being threaded upon a projecting nipple 11 surrounding said outlet chamber; said inlet and outlet chambers being in substantial alinement. The main port 12 which establishes communication between the inlet and outlet chambers is governed by a valve 13, the latter being adapted to seat in valve seat 11. A coiled compression spring 15 surrounding the stem 16 of said valve and bearing at one end against said valve and at its opposite end against a screw plug 17 threaded into the casing at 3, is adapted to normally hold said valve seated. Said plug, as seen, serves as a sliding bearing for said stem 16. And the same is formed at its inner end with an integral foraminated cup 18 surrounding said valve on the side of the approach of the fluid, said cup portion serving as a strainer for the fluid in its passage from the inlet to the outlet chamber and also as a distributer of the fluid to obtain a uniform pressure upon the valve and also upon the seat therefor; this being conducive to maintaining a tight connection between said valve and seat since all points will be subjected to the same condition and wear.
Formed in the upper portion of the body part3 co-axially with the valve 13 is a cylinder 19 in which is operatively mounted a piston 20, the latter being preferably of a cup form as shown. The valve stem 16 is extended upwardly through the lower end wall 21 of the cylinder 19 into contact with the under side of the piston 20, the latter being preferably recessed as indicated for the reception of said end of said stem. Provided in the wall 21 is a plurality of openings 22 which establish communication between the outlet chamber 9 and the cylinder 19.
Formed centrally in the upper end of the body part 2 is a transversely extending cylindrical opening or passage 23 in which is fitted a bushing 24. 'Slidably mounted in said bushing is a valve stem 25, the latter being of a reduced thickness substantially its entire length so as to form an annular passage 26 in said bushing. Carried at one extremity of said stem 25 is a valve 27 adapted to seat in a valve seat 28 formed in the adjacent extremity of said bushing. Atsaid valve the opening 23 is enlarged into a chamber 29. Threaded into said chamber is a screw plug 30, the latter being formed at its inner extremity with a foraminated cup 31 which incloses the valve 27 to serve in a capacity similar to that served by the cup-formed inner extremity of the plug 17, before described. A coiled compression spring 32 is adapted to normally hold the valve 27 seated. A passage 33 establishes communication between the inlet chamber 6 and the chamber 29, and a second passage 34 connects the passage 26 and the cylinder 19. Thus a fluid passage is established between the inlet chamber and the cylinder 19, which passage is governed by the valve 27.
35 indicates an oil hole co-axial with the passage 34, whereby lubrication of the stem 25 and also of the piston 20 may evidently be effected. A screw plug 36 is provided for the closure of said oil hole.
The opposite end of the opening 23 is also enlarged for the reception of a screw plug 37 threaded therein. Slidably mounted co-axially in said plug is a stem 38 carrying a valve 39 adapted for seating in a valve 40 formed at the inner end of said plug. A coiled compression spring 41 arranged upon the stem 38 is adapted to normally hold said valve 39 seated; said valve being evidently provided to prevent escapement of fluid from cylinder 19 around valve stem 38 when valve 39 is closed. The inner extremity of the stem 38 is arranged for engagement of the adjacent extremity of the stem 25 so that, by depression of the stem 38, the stem 25 will also be depressed to effect the opening of the valve 27. Hence the position of the valve 27 is under the direct government of the stem 38.
An enlarged circular chamber 42 co-axial with the opening 23 surrounds the plug 37. Arranged upon the body part 2 over the mouth of the chamber 42 is a diaphragm 43 against the inner side of which engages the outer end of the stem 38. The diaphragm is held in position by means of a screw cap 44, a circular gasket 45 being interposed between said diaphragm and said cup. Threaded in the extended tubular outer end of the cap 44 is a screw 45 readily rotatable therein by means of a hand-piece 46 secured to the outer end of said screw; said screw being adapted to be locked in any position of adjustment by means of a winged lock nut 47. Interposed between the inner end of the screw 45 and the outer side of the diaphragm 43, between lugged bearing disks 48 arranged upon said end of said screw and said surface of said dia phragm, is a coiled compression spring 49, the latter being adapted'to normally hold the diaphragm in forced engagement with the outer end of the stem 38. By means of the screw 45, the tension of said spring and hence the pressure of the diaphragm upon the stem 38 may be regulated.
A passage 50 establishes communication between the diaphragm chamber 42 and the outlet chamber 9. In order to insure per- 'fect alinement of the parts of the passages 33 and 50 located in the body parts 2 and 3', short tubes 51 are provided, said tubes extending partly into each of said parts, thereby evidently effecting the purpose mentioned. Gaskets 52 interposed between the contacting surfaces of the body parts 2 and 3 serve an obvious purpose.
The operation of the device is as follows: Fluid under high variable pressure is ad mitted. to the inlet chamber 6 whence it passes through the main port 12 to the outlet chamber 9, providing the valve is in lowered or vopenposition. The position of said valve is governed directly by the piston 20, the position of the latter being governed by the pressure upon the upper side thereof, and which pressure is created by the admission of fluid from the inlet chamber to the cylinder 19 through the fluid-way established by the passage 33, chamber 29,
and passages 26 and 34. This fluid-way is great enough to overcome the pressure of,
the spring 49, said diaphragm will be flexed outwardly. Such flexing evidently effects the release of the stems 38 and 25, whereby the valves 39 and 27 will be closed by the springs 41 and 32. The valve 27 being closed, the passage of fluid to the cylinder 19 is stopped, whereupon the valve 13, by reason of the spring 15 and the pressure upon the under side thereof, will be forced,
to closing position, as the fluid in said cylinder leaks past the piston therein, and valve 39 prevents leakage of high pressure fluid into the diaphragm chamber. Thus passage of fluid to the outlet chamber is stopped. The various parts will remain in the positions stated until the pressure in the outlet and the chamber 42 falls to such an extent as to be overcome by the spring49, whereupon the diaphragm will be forced inwardly by said spring to initial position, and which, as above described, effects the opening of the valve 13. The pressure at the outlet chamber is thus constantly maintained. Such pressure, it will be observed, is governed by the tension of the spring 49, so that by merely adjusting the tension of said spring, the device may be adjusted so as to maintain any desired pressure atthe outlet chamber. 7
While I have shown what I deem to be the preferable form of my device I do not wish to be limited thereto as there might be various changes made in the details of construction and arrangement of parts described without departing from the spirit of the invention comprehended within the scope of the appended claim.
Having described my invention what I claim as new and desire to secure by Letters Patent is:
A fluid pressure regulator comprising a body provided in its lower end with trains versely alining inlet and outlet chambers separated by a horizontal partition having a vertical passage therethrough; a vertically movable main valve arranged to open and close said passage; a spring normally holding said main valve closed; a cylinder in said body above said passage and in open communication with said outlet chamber; a vertically disposed valve stem for said valve projecting into said cylinder; a piston in said cylinder and mounted on said valve stem; a transversely arranged supplementary valve in the upper portion of said body; and controlling passages connecting the upper end of said cylinder with said inlet chamber; a spring normally holding said supplementary valve to its seat; a third valve in alinement with said supplementary valve and sealing the same from a diaphragm chamber provided in the upper portion of said body; a valve stem carried by said third valve; a diaphragm in said diaphragm chamber and secured to the end of said third valve stem; an operative connection between said third valve stem and said supplementary valve; and a spring contacting with said diaphragm and arranged to hold said third and supplementary valves from their seats, there being an open passage connecting said diaphragm chamber With said outlet chamber, substantially as described.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
AUGUST GLOEGKLER. Witnesses JANET E. HOGAN, JOSHUA R. H. Porrs.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.