US216921A - Improvement in stop-valves - Google Patents

Description

UNITED STATES PATENT OEEIGE.

ADOLPH WEBER, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF EIS RIGHT` TO HENRY W. ROOD, OF SAME PLAGE.

t IMPROVEMENT IN STOP-VALVES.

Specification forming part of Letters Patent No. 216,92] dated June 24, 1879; application iiled January 7, 1879.

struction of what are ordinarily denominated stop-valves, and my invention consists, first, in the peculiar construction of the disks forming the valve, and in the manner of operating the same, whereby they will be forced apart to close the water-passage, and will be held together in their withdrawal from the water-opening; and, further, in the combination therewith of a ring connected to one of the disks, resting, when the valve is in the water-way, in anextended portion of the shell,

and, when the valve is withdrawn, immediately around the water-passage, so as to allow the water to flow in an uninterrupted stream and to prevent deposit of sediment in the f valve-shell.

As ordinarily constructed, when the diskvalves are withdrawn to allow the water to pass, usually under pressure, as soon as the water leaves the confinement of the conducting-pipes and enters one side of the shell, the stream` enlarges, and port-ions thereof strike againstthe inner face ofthe opposite side ofthe shell, causingan interruption of the current l and a tendency to deposit within the shell any sediment which it may be carrying. Such deposit after a time fills the shell, so that the valves are prevented from closing, when the shell must be cleaned out, often at a considerable expense of time and labor.

The object of my invention, therefore, is to obviate these diiculties. The invention will be found substantially hereinafter described.

Referring to the drawings, Figure 1 is a side elevation with the casing broken out. Fig. 2 is a cross-section at x a; in Fig. l. Fig. 3 is a sectional plan. Fig. 4 is a section on line y y in Fig. 3. Fig. 5 is a horizontal central section of Fig. 3. Figs. 6 and 7 are plan views of the inner faces of the valves.

In the accompanying drawings, which form a part .of this specification, A represents the Awater-ways a b in the shell.

shelll of a stop-valve, provided with the usual inlet and outlet pipes a b, which communicate with and form the water-way through said shell. This shell is provided with the usual stuflin g -loox B and valve-stem O, which is threaded at the lower end, as shown in Figs. l, 3, and 5.

D Dl represent a pair of disk-valves, the outer face of each of these valves being of sufiicient area to entirely close, when in place, the The valve D is provid ed with a hollow neck, which is interiorly threaded to engage with the lower threaded end of the valve-stem. The opposite side or rear face of this valve D is provided with two ribs, c, extending from the foot or inner end of the neck', at an angle of about thirty degrees, (more or less,) toward the lower end of Both outer faces of these ribs are said valve. ground or planed to the same plane. Just below the termination of these ribs this valve is also provided with an inwardly-projecting segmental iiange, d. The valve D is provided with similar ribs, c', finished in like manner, so that when the inclined faces of the ribs are in juxtaposition, as shown in Figs. 3, 5, the outer faces of the valves will be parallel with the segmental iiange d of the disk D over hanging the ends ofthe ribs c upon the valve D. By this construction, when it is desired to remove the disks and open the-waterway,

the stem, being turned in the proper direction,-

acts to withdraw thedisk D, and this disk, by its' overhanging iiange, acts upon and withd draws the disk D. A reverse motion of the valve-stem allows the disk D' to drop, and beA ing followed by the disk D, under the action of the stem, as soon as the disk D is seated, the continued action of the stem seats the disk D and forces them laterally apart,thereby ef fectually closing the water-way.

To the lower end of the disk D is secured the ring E, the interior area of which corre sponds to the similar area of the water-way, while the width of the ring corresponds with the distance between the walls of the shell.

The shell is elongated below the water-way, as shown at F, Figs. 1 and 2, to form a casing for the ring E when the valves are closed.

l When the valves are withdrawn and the water-Way opened, the ring is drawn up from its well into line with the Water-Way through the case, thereby allowing the water as continued and unbroken a' passage through the shell as it would have through an ordinary plpe.

This valve may be used for gas, steam, or any liquids. y

What I claim as my invent-ion is 1. The disk-valves D D', having inclined ribs-c c' andthe curved flanged, the disk D having hollow threaded neek to engage with the aetuating-serew G, constructed and arranged substa-ntially as described and shown.

screw C, working in the threaded neck of the disk D, constructed and arranged substantially as described and shown.

ADOLPH WEBER.

Witnesses:

H. S. SPRAGUE, CHARLES J. HUN'r.

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