US935329A - Valve. - Google Patents

Description

J. A. SERRELL & M. P. OSBOURN. VALVE. APPLIOATION FILED JUNE 6, 1908.

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UNITED STATES PATENT JOHN A. SEE/BELL, "IF NORTH PLAINFIELD, AND MILLARD FEICE.

P. OSIBOURN, OF MERCHANT- VILLE, NEW JERSEY, ASSIGNORS TO WARREN WEBSTER, & COMPANY, A CORPORA- TION OF NEW JERSEY.

VALVE.

Specification of Letters Patent.

Patented Sept. 28, 1909.

Application filed June 6, 1908. Serial No. 437,086.

To all whom it may concern:

Be it known that we, JOHN A. SERRELL and MJLLARD P. OSBOURN, both citizens of the United States, and residents of North Plainfield, Somerset county, State of New Jersey, and Merchantville, (.amden county, State of New Jersey, respectively, have invented an Improvement in Valves, of which the following is a specification.

Our invention has reference to valves and consists of certain improvements which are set out in the following specification and shown in the accompanying drawings which form a part thereof.

The object of our invention is to provide a simple and inexpensive form of valve especially adapted for regulating the supply of steam to a. steam radiator of a heating apparatus, whereby the temperatuie of the iud-iator may be modulated to suit the re quirements of the room.

Our invention consists in a valve having a body provided with a valve seat having a port of maximum area located to one side of the center of the seat, combined with a valve piece adapted to the seat and having a series of ports of different areas adapted to be successively brought into alinenient with the port in the seat, a valve stem extending from the valve piece through the top of the valve body and provided with-a handle to rotate it, a spring outside of the steam space of the valve body pressing outward upon the valve stem to hold the valve piece to its seat, and a dial plate surrounding the spring to indicate the positions of the valve piece which brings each of the several ports thereof into alinement with the port in the valve seat; further in providing the above valve with a removable bonnet for the valve body in which the valve seat is formed and to which the dial plate is adjustably secured, and a packing carried in the bonnet and compressed by the spring aforesaid for making a steam tight joint about the valve stem.

Our invention also comprehends details of construction which, to ether "with the features above specified, Wlll be better un derstood by reference to the drawings, in which;

Figure l is a plan view of our improved valve; Fig. 2 is a sectional elevation of the same; Fig. 3 is a cross section of the same on .2 is also provided with a diaphragm 3 hav ing it turned seat to receive the tubular part 11 of a bushing 10 connected to the bonnet 6.

6 is the bonnet and is screwed down into the body 2 and has its lower part extended to form a cage 9 having a valve seat 7 pro vided with a port 8 of maximum area lo cated to one side of its center. Screwed to the bottom of the bonnet below the seat is a tubular bushing 10 having a downwardly extending neck 11, which snugly 'fits the aperture in the diaphragm 8 of the body. The under part of the bushing 10 may seattightly upon the diaphragm 3 so as to be steam tight and require all circulation of steam tolie upward through the bushing and port 8, thence by cage 9 to the outlet 4:.

12 is a valve piece in the form of a flat disk working against the under face of the valve seat- 7 and having a series of ports A, B, C, and D, more or-less, of different areas which may be brought successively into al inement with the port 8 in the valve seat. The areas of the ports B, C and D are each smaller than the port A and port 8 of the valve seat. 'By rotating the valve piece 12 either port may be made to control the steam passing through the valve, or by another adjustment of the valve piece the port 8 may be sealed and the passage of steam shut oil. r

The upper edge of the bushing 10"terminates at a short distance below the valve seat 7 so as to form an annular channel in which the perimeter of the valve'niece 12 travels, whereby, at all times, the valve pieceis held up into approximate adjustmentwlth the seat and thereby sustains the valve stem in position in assembling the valve orzvvlien dismantling it during repacking of the st ufling box.

- 13 is the valve stem and is rigidly secured to the valve piece 12, so that they move as a unit. The stem passes upward through an aperture in the valve seat 7 which it very the gland 14.

- guide screw loosely fits, thence upward through the stuffing box of the bonnet and is connected at the" top to a" disk shaped hub 17 having a handle 19 projecting to one side. The handle may be formed in any other suitable manner, and the hub 17 is made detachable by a pin 24 which also insures the hub al ways maintaining the same relative position to the valve piece and its ports. The hub 17 is provided with a pointer or index 21 which cooperates with a dial 20 of a cup shaped gland 14. The gland 14 is made cylindrical at its lower end and fits a stuffing box 6* of the bonnet 6. A packing 15 is arranged within the stuffing box and compressed by A spring 18 surrounds the valve stem 13 and is arranged between the gland and hub 17 so that it forces the stem upward to bring the valve piece 12 against its seat 7 and the gland downward so as to compress the packing. The gland has a vertical groove 16 into which the end of a 16 extends to prevent the gland rotatin on the bonnet and thereby insure the dia always maintaining the proper rela tive position with respect to the port 8 of the valve seat. By making the slot 16 long, the gland 14 may move longitudinally of the valve-stem to compress the packing 15 automatically under the action of the spring 18.

The dial 20 has upon its face the numerals 1, 2 3 and words open and shut and is further provided with stops 2 and 23 against which the pointer or index 21'respectively rests when the valve is open and shut. When the pointer 21 is over the mark 1 of the dial, the small port D is in alinement with the port 8 of the valve seat and the smallest quantity of steam is thus permitted to flow; when the pointer is over the mark 2 of the dial, then the port C of larger area is in alinement with the port 8 to increase the flow of steam; when the pointer is over the mark 3, the port B will be in alinement with port 8 to increase the flow of steam still further and finally, when the pointer isbrought to the stop 22 and over the word open on the dial, the port A is in alinement with the port 8 and the greatest'flow of steam is permitted. By these various adjustments, he supply of steam may be quickly varied and accurately regulated to suit the requirements.

The spring 18 is placed outside ofthe case .and hence out of influence of the heat of the steam; and moreover it performs the dual function of holding the valve piece to its seatand the gland to the packing. The spring is shielded from view by the gland 14 and hub 17. The valve stem is made to fit the bonnet and gland loosely so as to be free, under the pressure of the spring 18, to draw the valve piece 12 fiat against the valve seat 7 even though the valve'pieces face was not, mathematically, in a plane at right angles to the axial line of the stem.

The construction as a whole is simple and inexpensive; and is automatic in adjusting itself to compensate for wear or slight defects in structure, should the latter occur.

\Ve have shown our invention in the form which is adapted for commercial use and while we prefer the construction shown, we do not limit ourselves to the details, as these may be modified without departing from the spirit of the invention.

Having now described our invention what we claim as new and desire to secure by Letters Patent, is:

1. In a valve, the combination of a body, a removable bonnet having a cage provided with a seat having an eccentrically located port, a rotary valve piece having a series of ports of different areas located on the pressure side of said seat, a longitudinally adjustable gland in said bonnet, a stem carrying said valve-piece and extending through said gland, a packing between said gland and bonnet, and a spring between said gland and stem acting to hold the valve-piece in contact with the seat of the body.

2. In a valve, the combination of a valve body, a removable bonnet therefor having a valve seat provided with a port to one side of its center, a valve stem carried by the bonnet and provided with a valve piece having a series of ports of different areas and seating on the pressure side of the valve seat, a handle secured to the top of the valve stem and having a pointer, a gland surrounding the valve stem and adjustable relatively to the bonnet and provided with a dial, means for preventing rotary adjustment of the gland and dial while permitting longitudinal adjustment, a packing between the gland and bonnet, and a spring simultaneously acting to press the valve stem outward and the gland inward.

3. In a valve, the combination of a valve body,-.a removable bonnet therefor having a valve seat provided with a port to one side of its center, a bushing secured to the bottom of the bonnet and forming an. annular channel below the valve seat and a steam tight passageway to the inlet of the valve body, a valve stem carried by the bonnet and provided with a valve piece having a series of ports of difierent areas and seating on the pressure side of the valve seat and havin its perimeter engaging the annular channe a handle secured to the top of the valve stem, a gland surrounding the valve stem and adjustable relatively to the bonnet, a packing between the gland and bonnet, and a spring simultaneously acting to press the valve stem outward and the gland inward.

4. In a valve, the combination of a body, a removable bonnet, a cage carried by said bonnet and having a diaphragm-seat portion provided with an eccentrically located port, a perforated bushing carried by the cage below said seat portion and fitting the opening .in the aperture of the diaph 'agm of the body, a valve-piece consisting of a rotary plate arranged in contact with the seat portion of the cage on the pressure side and provided with a series of ports of different areas. a stem carrying said rotary valvepiece and extending through the bonnet, anda spring between the bonnet and stem acting to maintain the valve-piece in contact with the seat portion of the cage.

In a valve, the combination of the body, a bonnet fitting the body and providing a valve seat therefor, a valve piece arranged to rotate against the valve seat and vary the area of the steam portsformed through them available for the steam, a valve stem extending from the valve piece outward through the bonnet, a bushingsecured to the bottom of the bonnet below the valve seatto form an annular channel for holding the valve piece normally adjacent to its seat, and a spring arranged above the bonnet for forcing the valve stem outward and the valve piece upon its seat.

form an annular channel for holding the valve piece normally adjacent to its seat, and also having a lower tubular extension forming a steam tight joint with the supply side oft-he valve body, and a spring arranged above the bonnet for forcing thevalve stem outward and the valve piece upon its seat.

In testimony of which invention, we have hereunto setour hands.

JOHN A. SERRELL. MILLARD P. OSBOURN.

Witnesses as to John A. Serrell: VM. M. TREADWELL, CLARIBEL E. CLEMENS.

Witnesses as to Millard P. Osbourn:

F. JOSEPH MILLER,

C. I). ALLEN.

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