US1179377A

US1179377A - Valve.

Info

Publication number: US1179377A
Application number: US4571815A
Authority: US
Inventors: Andrew Stenger
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-08-16
Filing date: 1915-08-16
Publication date: 1916-04-11
Anticipated expiration: 1933-04-11

Description

A. STENGER.

VALVE.

APPLICATION FILED AUG. 16. 1915.

Patented Apr. 11, 1916.

I M M a 4 v m x w a0 1 5 mma witness )f M/ W THE cowmum msoulluin cm, wAsm UNITED STATES PATENT GFFIQE.

ANDREW STENGER, OF CHICAGO, ILLINOIS.

VALVE.

Application filed August 16, 1915.

T 0 all whom it may concern Be it known that I, ANDREW STENGER, a citizen of the United States of America, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Valves, of which the following is a specification.

Heretofore, needle valves have been made to operate by turning a hand wheel several times until the valve is opened or closed. Valves of this type have been very eflicient because they are capable of taking up wear of the valve seat as fast as it occurs, but such valves have the disadvantage of not indicating to an observer whether they are open or closed. Another type of valve in common use is the lever-handle key or plug valve in which the fluid passes through an aperture in the key when the key is turned to bring each end of the aperture into aline ment with the openings in the body of the valve. This type of valve has the advantage of being shifted from a fully open position to a completely closed position, or vice versa, by a quarter rotation of the operating handle, said handle being spaced so as to indicate to an observer whether the valve is open or closed. However, these lever-handle key valves have quite a serious defect because of the inability to adjust them when the key or plug becomes worn around its periphery in the middle thereof in such manner that the fluid leaks therearound.

The main objects of this invention are to provide an improved form of valve which embodies the advantages of both the needle valve and the lever-handle key valve: to provide a needle valve adapted to be shifted from one to the other of its limiting positions by turning a lever handle substantially ninety degrees; and to provide improved means for preventing the valve from being accidentally'opcned and for adjusting the position of the valve stem when the valve is open.

An illustrative embodiment of this invention is shown in the accompanying drawings, in which-.-

Figure 1 is a sectional elevation of a valve constructed according to this invention, ap-

Specification of Letters Patent.

Patented Apr. 11, 1916.

Serial No. 45,718.

plied to a supply pipe. Fig. 2 is a section on the line AA of Fig. 1. Fig. 3 is a bottom plan of Fig. 1. Fig. 4 is a front elevation of the yoke used in connection with the bridge plate.

In the construction shown in the drawings, a stem 1, having square double threads 2 of coarse pitch, is threaded into the body 3 of the valve, and is located so that the tapered end 4 will fit on the valve seat 5. Rotation of the valve stem is effected by a handle 6 secured to the octagonal top 7 of the stem by means of a set screw 8. Due to the coarse pitch of the double threads 2, the valve stem might easily become unseated accidentally and leak. Such unseating of, the stem is prevented by means of a spring ratchet construction comprising a plurality of ratchet teeth 9 cut in an annular boss 10 formed on the upper part of the body 3, and a plurality of pawls in the form of springs 11 set in the depending flange 12 of a second handle 14, which is slidably mounted on the end 7 of stem 1. The handle 14 is normally urged downward by a compression spring 15 located between the

handles

6 and 1 1, but which may he slid upward on the stem against the action of the spring 15, the space between the handles being sufficient to permit the springs 11 to be raised up above the ratchet teeth 9, thus allowing the stem 1 to be rotated to open the valve. The springs 11 are prevented from slipping out of the recesses in which they are set by an annular ring 16 secured to the lower edge of the depending flange 12 by screws 17. The teeth 9 are beveled on their upper edges at 18 in such manner that the springs 11 are deflected outward and guided into their proper positiops when the handle 1 1 is released after being raised to disengage the springs and teeth.

Means for preventing the valve as a whole from shifting relative to the supply pipe 19,, into which it is threaded, when the lever handle is turned from one position to another, are provided and comprise a yoke 20 shaped to embrace a reduced portion of the valve body. The yoke 20 is provided with a threaded stud 21 shaped to pass through an aperture in a bridge plate 22 which bears against and is disposed between the under side of the valve body and supply pipe. Tension is secured between the plate 22 and yoke 20 by means of a nut 23 threaded on the stud 21 after the plate has been placed in position.

The operation of the device is as follows z-The ratchet mechanism is so arranged that the handle 6 may be turned to cause the seating of the valve stem without the lifting of the handle 14, the double threads on the stem being of such pitch that a quarter turn of the handle 6 will shift the valve stem from a fully open position to a completely closed position. When it is desired to open the valve, the two

handles

6 and 14 are first grasped and squeezed together, whereby the lower handle 14 is slid upward on the valve stem, disengaging springs 11 from the ratchet teeth 9, and then the handle may be rotated to open the valve to any desired position. When the handle 14 is released, the spring 15 forces it downward, the springs 11 contacting with and being cammed outward by the beveled por tions 18 of the shoulders 9.

The number of teeth on the ratchet may be different from the number of springs, as for example, in the construction shown in Fig. 2, the number of ratchet teeth being 16 and the number of springs being 12. With such an arrangement as this, twelve different adjustments in a ninety degree rotation may be had.

Before the valve is applied to a supply pipe, the yoke 20 is slipped over the reduced portion thereof and after the valve has been threaded to the pipe, the bridge plate 22 -is placed underneath the valve and pipe in position to bear upon the same, and the nut 28 is tightened against said plate, thereby causing tension between the yoke and the valve body sufficient to prevent the Valve as a whole from being twisted from its proper position by the turning of the operating handle.

Although but one specific embodiment of this invention has been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted without departing from the spirit of this invention as defined by the following claims.

I claim 1. A valve, comprising a body having a passageway therethrough, a valve stem a pair of handles on said stem, one of said handles being rigidly mounted and the other being slidably mounted and rotatable in unison with said rigid handle, and ratchet means acting between said body and said shiftable handle for normally preventing the shifting of said stem toward one of its limits, said ratchet means being retractable by the shifting of said slidably mounted handle.

2. A valve, comprising a body having a passageway therethrough, a valve seat, a needle valve stem, a lever handle on said stem, connections between said body and stem for seating and unseating said stem by a substantially ninety degree rotation of said handle, a plurality of ratchet teeth on said body, a second handle mounted to rotate with said first mentioned handle, a plurality of pawls carried by said second handle and arranged to normally coact with said teeth for normally preventing the unseating of said valve stem, and means for shifting said pawls out of coaction with said teeth.

3. A valve, comprising a body having a passageway therethrough, a valve stem, a handle on said stem, coacting means on said body and stem adapted to shift said stem from one to the other of its limiting positions, a plurality of ratchet teeth on said body, a second handle slidably mounted on said stem to rotate with said first mentioned handle, and a plurality of springs carried by said second handle and arranged to normally coact with said teeth for normally preventing the shifting of said stem toward one of its limiting positions, said springs being shifted out of coaction with said teeth when said second handle is moved axially on said stem.

4. A valve, comprising a body having a passageway therethrough, a valve stem, a handle on said stem, coacting means on said body and stem adapted to shift said stem from one to the other of its limiting positions, a plurality of ratchet teeth on said body, a second handle slidably mounted on said stem to rotate with said first mentioned handle, yielding means normally urging said second handle to one position, and a plurality of springs carried by said second handle and arranged to normally coact with said teeth for normally preventing the shifting of said stem toward one of its limiting positions, said springs being shifted out of coaction with said teeth when said second handle is moved to another position.

5. The combination of a supply pipe, a valve comprising a body having a passageway therethrough, a valve stem, a lever handle on said stem, coacting means on said body and stem adapted to shift said stem axially from one to the other of its limiting positions by a substantially ninety degree rotation of said lever handle, a yoke embracing a portion of said valve, a plate arranged to bear between said pipe and valve body, and means for causing tension between said yoke and plate for preventing preventing the shifting of said stem toward said valve from shifting relative to said one of its limits, said ratchet means being 10 pipe when said lever handle is rotated. retractable by the axial shifting of said 6. A valve, comprising a body having a handle.

5 passageway therethrough, a valve stem; a Signed at Chicago this 12th day of Aug,

handle for rotating said stem and slidable 1915. axially thereon, and ratchet means acting between said body and handle for normally ANDREW STENGER.

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