US990111A - Valve. - Google Patents

Description

G. N COON & 'J. CANTLON. VALVE.

APPLICATION rum) we. 1, 1910.

990.1 1 1 Patented Apr. 18, 1,911.

CHARLESN'. COON AND JOHN CAN'I'LON, OF MATTOON, ILLINOIS.

VALVE.

Specification of Letters Patent.

Patented Apr. 18, 1911.

Application filed August 1, 1910. Serial No. 574,800.

7 '0 all whom it may concern:

Be it known that we, Ci-mnnns N. Coon and JonN CANTLON, citizens of the United States, residing at Mattoon, in the county of Coles and State of Illinois, have invented certain new and useful l n'ipmvcments in Valves; and we do declare the following to be a toll, cl var, and exact description of the invention, such as will enable others skilled in the art to which it appm'tains to malce and use the same.

This invention relates to improvements in globe valves.

One object of the invention is to provide a valve of this character having a double faced valve seat and a valve adapted to be reversed whereby when one side of the same and one faceof the seat become worn to such an extent as to impair their usefulness, the valve may be reversed to engage the onused face of the scat thereby greatly increasing the life and usefulness of the valve.

Another object is to provide means where-- by the valve may beheld in an open position when desired.

With the foregoing, and other objects in view, the invention consists of certain novel features of construction combination -.and

. arrangement of parts as will be more fully described and particularly pointed out in the appended claims.

In tho :urcompanying drawings: l igure 1 is a vertical longitudinal sectional view of a valve constructed in accordance with the invention, and showing the valve arranged in one position, Fig. 2 is a similar view showing the valve arranged in its reverse position; and, Fig. 3 is a detail sectional view of the valve removed from the casing.

In the present instance the invention is shown in the form of a globe valve con1prising: a casing l, which may be of the usual or any desired shape and in which is formed the usual partition 2. In the partition 2 is formed a threaded passage 3, in which is screwed a tubular valve seat 4-, the upper edge of which projects above the partition 13 and flanged to form a shoulder 55, which engages the upper side of the partition as shown. The upper edge of the seat lis beveled or inclined on its inner and outer sides to form inner and outer valve receiving faces (3 and 7.

On the upper side of the valve casing is formed an n wardly projecting tubular extension 8, w ich is threaded on the outer .as shown.

surface of its upper end and is adapted to receive a hood 9 into which the stem of the valve projects as will be hereinafter described. The hood 9 is provided with a flared lower end which provides a seat 10 for a nut '11 which is engaged with said seat and with the upper end of the tubulan extension 8 of the valve casing. The lower end of the hood 9 is provided with an annular flange 12 with which is engaged a cap nut 13, said nut having a screw threaded engagement with the extension 8 whereby said.

hood is securely clamped to the valve casing. The nut 11 has a tapered upper side which fits into the flared lower end of the hood and is beveled on its lower. edge to fit in the beveled upper end of the extension 8, Silltl end being thus securely held in place.

In the cxtcnsion 8 ol the valve casing and The threads of the portion 14- of the stem,

are inclirurd'on their lower sides only and engage similarly formed threads in the nut 11. By forming the threads on the stem and in the nut in this manner the square or flat upper portion of the thread will receive a the thrust of the valve.

The upper portion of the lower section of the valve stem is squared, as shown at 17, and engaged with a squared socket 18 formed in the lower portion of the upper section 19 of the valve stem. The upper portion l!) of the valve stem is of less diameter than the lower portion 18 and thereby forms a shoulder, the width of which is increased by an annular flange 20 formed on the upper edge of the portion 18 ot' the stem ()n the flanged and shouldered upper end of the lower portion 18 of the stern is formed one member ot a hall race, the opposite member of which is formed on the lower side ol a packing ring 91. which is arranged on the reduced portion ill) of the stem. In the ball race thus formed is arranged an annular series or bearing balls 22 whereby an anti-"frictional engagement is provided between the packinp ring 21 and the valve stem. On the threaded upper end of the hood 9 is screwed a packing nut or gland 23 in which is arranged a suitable packing 24: whereby a fluid tight joint is provided for the valve stem. The upper end of the stem is squared to receive any suitable form of wrench or handle.

Secured to the lower end of the valve stem and adapted to be engaged with the valve seat 4 is a reversible valve 25 comprising a cylindrical body portion 26 having in one side a circular recess 27 the side walls of which. are beveled or inclined as shown. On the opposite side of the body portion 26 is formed a tapered projection 28 which, when the valve is arranged in the position shown in Fig. 1, is adapted to engage the inner face 6 of the valve seat when the valve is in closed position. When the valve is in the position shown in Fig. f the drawings and is closed, the tapered or inclined walls of the recess 27 will engage the outer beveled face 7 of the seat. On the opposite sides of the valve are formed T shaped lugs 29 which are adapted to engage the T shaped slot 16 in the head 15 on the lower end ofthe valvestem thereby securing the valve to the stem in either of-its positions. By thus forming the valve and seat it will be readily seen that the valve may be quickly reversed when one side or the other has become worn, thus presenting a new or unworn working surface for engagement with the unused face of the valve seat. It will also be readily seen that by screwing the lower portion 14 of the stem through the nut at that the valve may be adjusted and held in an open or closed position.

From the foregoing description taken'in connection with the accompanying drawings, the construction and operation of the. invention Will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advan; tages of the invention as defined in the appended claims.

Having thus described our invention what claim is: Z

1. in a valve of the character described, a casing, a hood having a detachable engagement 'with said casing, a tubular valve seat removably secured in said casing, said seat having inner and outer valve receiving faces, a valve having on one side a tapered projection adapted to be engaged with the inner face of said seat when in one position and having on its opposite side a tapered recess adapted to be detachably connected to the valve in either of its positions, a nut secured between said hood and valve casing, threads formed on the lower section of the valve stem whereby said section has a movable cngagement' with said nut, said threads having an inclination on their lower sides and having flat upper sides, 'a packing nut arranged on the upper end of said hood, a packing ring arranged in said nut, and an antifrictional bearing arranged between said packing ring and the upper section of the valve stem.

2. 'In a valve of the character described, the combination of a casing, a tubular valve seat removably secured in said casing, said seat having inner and outer valve seating faces, a valve having on one side a tapered projection adapted to be engaged with the inner face of said seat when in one position and having on its opposite side a tapered recess adapted to engage the outer face of said seat when in another position, T-shaped lugs formed on the opposite sides of said valve, a valve stem having a slot in its lower end to engage either of said lugs, and means for operating said stein.

In testimony whereof we have herei'into set our hands in presence of two subscribing witnesses.

CHARLES N. coon. JOHN 'oANTLon.

Witnesses:

F. A. SNYDER, T. O. FREEMAN.

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