US470058A

US470058A - Combined stop-cock and check-valve

Info

Publication number: US470058A
Authority: US
Publication date: 1892-03-01
Anticipated expiration: 1909-03-01

Description

(No Model.)

0. P. K-ISE R.

COMBINED STOP 000K AND CHECK VALVE. v No. 470,058. Patented Mar. 1,1892.

K I F 0L. 0.

l vivlimeooeo Nrrn- STATEs CHARLES F.1(ISER, OF SIIIPPENSVILLE, PENNSYLVANIA.

COMBINED STOP-COCK AND CHECK-VALVE. I

SPECIFICATION forming part of Letters Patent No. 470,058, dated March 1, 1892.

Application filed May 25, 1891- Serial No. 394,023. No model.) I

To all whom it may concern.-

Be it known that I, CHARLES F. KISER, a citizen ofthe United States, residing at Shippensville, in the county of Clarion and State of Pennsylvania, have invented certain new and useful Improvements in Combined Stop- Cocks and Check-Valves; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in combined stop-cocks and check-valves for supplying water to steam or other boilers; and the invention consists in the combination and arrangement of the several parts, as will be hereinafter more fully described, and specifically pointed out in the claim.

In the accompanying drawings, to which reference is had and which fully illustrate my invention, Figure 1 is a Vertical section of my invention. Fig. 2 is a .top or' plan view. Figs. 3 and 4 are details of the same.

The same designations indicate corresponding parts in all the views.

A indicates a shell, slightly conical in form, provided with lateral hollow hexagonal proj ections B, formed integral therewith. In the shell are formed vertical rectangular slots 1) I), having the opposite sides out at an angle to the other sides-that is, the upper side of the slot 1) and the lower side of the slot 1) are cut at an angle to their respective opposite sides and are parallel. These slots register with the inner termini of the projections. Axially coincident ith the shell is a plug or cock 0, having two penings d d in the same perpendicular plane. The opening cl has its lower side out at an angle to the plug and opposite in direction to the angle of the upper side of the slot- 1). munication with the valve-seat E. It is thus apparent that by turning the plug it can be made to make or break communication between the openings d d and the ports I) b. Secured within the shell is an annular metallic valve-seat E, against which the lower part of a cage normally abuts.

The plug or cock 0 is secured to the outer The opening d is in com-v cone or shell by means of a screw-extension e of said cone and a suitable washer e and nut 6 the extension e having the usual screwthreads thereon. Within the core is an annular recess having antipodal grooves inthe walls thereof, wherein the guide-rods G of the cage reciprocate. The rods G connect the head-block I with the valve H, wherein a heavy check-valve O normally rests. The head-block I is connected to the threaded stem J, so that the whole cage is capableof vertical reciprocation. A washer K makes the connection permanent. A bonnet L fits over the plug 0 and is screwed therein by means of the extension Z, engaging the threaded recess Z The bonnet L also has an upper threaded extension M, that engages a threaded cap N, whereby a stuffing-box is formed.

'It will be understood that two variable conditions are permissible by this construction: First, the plug being in the position shown and the cage being seated, communication is established between the ports I? and b to a stream of fluid of sufficient pressure to lift the ball-valve O, and, second, the plug being in the same position and the cage G H I being raised, a free communication is established between the-ports b and b.

I am aware of the patent granted to E. Miller on the 28th day of April, 1874, No.150,343, wherein openings in diiferent planes are made in a rotary plug and a spring-depressed Valve is provided to cut off communication between the opposite projections. While the objects of that invention are analogous to those of mine, the constructions differ, among other things, in the substitution of a free ball-valve for the cumbrous valve therein shown.

' I am also aware of the patent granted to L. G. Gilbert on the 7th day of April, 1885, No. 315,273; but therein no such plug as mine is shown, and the ball-valve is restrained in its motion, while in mine it is free.

I am also aware of the patent granted to M. B. Fisher on the 28th day of April, 1885. This invention differs from mine in two notable particulars besides structural differences: There is no plug, which is an element of my invention; there is no ball-valve capable of fitting any seat, as shown in my invention, and the valve therein shown is restrained in its action, while mine is free.

Having thus fully described my improvements, What I claim is The combined stop-cock and check-valve herein shown and described, consisting of the shell A, having antipodal projections B, provided with openings b b, whose respective upper and lower sides are angular and parallel, the stop-cock C, having slots cl (1' the lat-- ter having an inclined base registering with said openings 12 b, the stem J, by which the altitude of the cage is altered, stepped in the head-block I, the cage G H I, the valve II, the heavy ball-valve O, and the seat E, supporting the cage, the whole co-operating as set forth.

In testimony whereof I aflix my signature in presence of two Witnesses.

CHARLES F. KISER.

Witnesses:

E. W. KISER, J. W. LONG.