US1067259A - Stop-cock and drain-valve. - Google Patents

Description

J. F. LAMPING.

STOP COCK AND DRAIN VALVE.

. APPLIUATION FILED 11113.29, 1912.

1,067,259. Patented July 15, 1913.

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JOI-IN F. LAMPING, 0F CINCINNATI, OHIO.

STOP-COCK AN D DRAIN -VALVE.

Speccation of Letters Patent.

Application filed February 29, 1912.

Patented July 15, 1913. serial No. 650,572.

To all whom t may concern.'

Be it known that I, JOHN F. LAMPING, a citizen of the United States of America, and resident of Cincinnati, county ot' Hamilton, and State of Ohio, have invented certain new and useful 4Improvements in Stop- Cocks and Drain-Valves, of which the following is a specication.

This invention is an improvement in stop cocks and drain valves.

An object of the invention is to improve the construction and operation of the valve disclosed in my Patent No. 853,246, of May lah, 1907.

A further object is to produce a valve of improved construction in which water collecting pockets are eliminated from within the valve casing.

The valve disclosed in the patent above referred to is provided with a ported diaphragm, which separates the inlet from the delivery port of the valve casing and on which a cylindrical plunger or block seats, for the purpose of closing the port in the diaphragm and cutting off the flow 01:' water through the valve. The valve casing is so constructed that a chamber is provided above a washer which surrounds the plunger, and a second chamber is provided below the washer. The former chamber communicates with the waste discharge port, and the latter chamber communicates with the de-4 livery port of the valve, even when the plunger is moved to close the port in the diaphragm. Communication is established be- 1 tween these two chambers, when the valve is closed, by means of a slot, which extends transversely across the head of the plunger, and is of such depth that it is normally exposed by the washer when the plunger is seated on the diaphragm. This construc-1 tion is objectionable, because the sharp edges of the plunger, produced by the slot, cut the washer and tend to destroy its effectiveness.

The principal object of my invention is to overcome this ditliculty.

In the drawings accompanying and forming a part of this application, Figure 1 is a side elevation of a valve embodying my invention. Fig. 2 is a sectional elevation of the valve illustrated in Fig. 1. Fig. 3 is a diagrammatic perspective view of a plunger which forms a detail of my invention, the plunger being shown with a quarter section removed.

The valve illustrated consists of a casing 5, a cylindrical block or plunger 6 mounted in the casing, and a stem 7 for actuating the plunger. The casing is provided with an admission port 8 and a delivery port 9, which are separated by means of a diaphragm 10, which is provided with a centrally located port 11. The plunger 6 is adapted to seat on the diaphragm to close the port and is located in a cylindrical extension of the valve casing, which is of such diameter, that it provides an easy sliding it for the plunger. The stem 7 is provided With the usual operating handle 12 and projects downwardly through a suitably packed aperture, which is provided in the head of the extension formed on the casing. The stem is provided with the usual worm, which causes it to reciprocate longitudinally of the extension when the handle is turned. The stem is secured to the plunger in the same manner as that disclosed in my prior patent, so that the plunger reciprocates with the stem, but does not turn during its reciprocations. A V-shaped slot 13 extends diametrically across the head of the plunger 6, and communicates with an aperture 14, which extends diametrically through the plunger, by means of a longitudinally extending passage 15, which is provided in the plunger 6. The aperture 14 is so located in the plunger, that it is exposed below a washer 16, which surrounds the plunger, when the plunger is seated on the diaphragm 10. The washer 16 is located between the valve casing proper and the extension and forms a water tight joint between the plunger and the extension. A chamber 17 is located above the plunger in the extension of the casing and communicates with a waste discharge port 18, which may be tapped, as illustrated in Fig. 2, and may be provided with a drain spout 19, as illustrated in Fig. 1.' The body portion proper ofthe casing is so formed that it provides a chamber 20 below the washer 16 and around the plunger 6, when the plunger is seated on the diaphragm. The aperture is exposed below the washer, when the plunger is seated, or when the valve is closed, and, consequently coperates with the passage 15 and the slot 18 to establish communication between the chambers 17 and 20. This arrangement permits the waste water in the piping communicating with the delivery port of the valve to be discharged back through the delivery port and out through the waste discharge port 18.

or inverted T-shaped groove formed in the plunger, for the purpose of securing the,

plunger and the stem 7. With the construction shown in my prior patent, t-he :pack-ing;

was cut and mutilated, not only by the edges of the drain slot provided in the plunge but also by the edges of the undercut and inverted T-shaped slot formed inthe plunger, since the construction was Vsuch that these edges `must of necessity engage the packing each time the valve was closed. In my present invention, I am able to so proportion the plunger 6, that the edges of the slot y13 never come in contact with the washer, and, consequently I eliminate the objectionable features inherent in my previous invention, since the edges of the apertures 121 have no detrimental effect lon the packing, their cnttling lengt-h being comparatively short. It will be understood, ofcourse, that the circular edges of the apertures 414 may, if desired, be beveled, or rounded for the ,purpose of preventing them from cutting the packing. p Y

As illustrated the extension of theV valve casing is so formed and so secu-red to the body of the casing, that 'the washer 16 can, be compressed and thereby adjusted froml time rto time to compensate for wear or: This is accomplished by providannular recess'in the outer edge of into which the ,packing 16 may be inserted, and by .providing Van annular projection on the extension, which is? of slightly less diameter than the recess land r G shrinkage. mg an the extension,

is adapted to seat upon the packing. y extension is secured to Ithe nbody portionuof the casing by means of a pipe coupling y22, the threads of which 'engage threads formed on the 'body of the casing 5, and the re entrant flange of which engages a projecting flange formed yon the extension. v

Y The chambers 17 and 20 are of such size, that "they prevent water from collecting around the plu-nger and from rendering the valve inoperative during vcold weather, by

the formation of ice. The chamber 17 is of@ such length that during the `operation of opening Y'the valve the plun er is Withdrawn into it, 'to such a position t at the aperture i 14 is located on the upper side of thel washer when the valve is ifully open. This shuts olf communication between the delivery .port 9 andthe waste discharge port 18 when 'the valve is opened. p v

The worm on the stem 7 of the valve is preferably so designed that during the valve closing operation the last quarter turn of the stem will uncover the ends of the aperture 14 and will place it into communication with the chamber 20. With this arrange-` shar-p edges of the slot 13, or by the edges of the undercut ment,`the1irst 'quarter turn of the stem during Athe operation of opening the valve, will move the -aperture 1l to such a position that itwill be closed by the packing 16 and in this manner shut olf communication between 'the chambers 20 and 17. The first motion of jthe stem opens the valve, and, consequently exposes th-e chamber 20 vto water pressure, prior to the time that the aperture 14 is covered by the packing 16. r1`his will cause a spurt of water to pass through the aperture 14, and the passage 15, and out through the port 18, when the valve is opened, and will thereby insure the removal of dirt, yor other foreign material, from the drainage passages.

In accordance withv ythe patent statutes I have described and illustrated one embodiment of my invention, its details of construction and its principles of operation, but I desire it to be understood that various changes, modifications and substitutions may be made without departing from the spirit and scope `of my invention as set fort-h in the appended claims.

What I claim is: i

1. A stop cock and drain valve comprising, a casing having an inlet and a delivery port, a .ported diaphragm between the inlet and delivery ports, a chamber located above the diaphragm on the `delivery port side thereof, and a waste discharge port formed in the casing and 'communicating with the upper end of the chamber, a plunger reciprocally mounted in the chamber for opening -and closing the port in the diaphragm and provided with a diametrically extending aperture, a longitudinally extending passage communicating with the aperture and a diametrically extending slot across the head Ythereof communicating with the passage and serving to establish communication between thel waste discharge port and the delivery port when the plunger is moved to close the port of the diaphragm, Ia packing between the casing and the plunger, so located thatv it uncovers the ends of the aperture when the plunger is seated on the diaphragm and closes the ends of the aperture when the plunger is moved away from the'diaphragm, and means having a loose connection with the plunger, whereby the latter is moved to different positions along the chamber.

2. A stop cock and drain valve comprising, a casing having an inlet and a delivery port, a iported diaphragm between the inlet and delivery ports, a -chamber located above the diaphragm on the delivery side thereof, and communicating, near its top, with a Waste discharge port formed in the casing, a plunger reciprocally mounted in the chamber for opening and closing the port in the diaphragm and provided in its upper end with an undercut slot, a diametrically extending V-.Shaped slot formed in the bottom of the undercut slet, an aperture extending diametrcally of the plunger and a longitudinally extending passage formed in the plunger and connecting the V-shaped slot and the aperture7 a packing surrounding the plunthe plunger is lifted oli' of the diaphragm, l0 and a rotatable valve stem, for actuating the plunger, projecting through the casing and having a disk formed thereon and engaged by the undercut slot of the plunger. JOHN F. LAMPING. lVitnesses:

W. THORNTON BOGERT, E. W. MCCALLISTER.

Copies of this patent may be obtained for five cents each, by addressing' the Commissioner of Patents. Washington, D. C.

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