US76106A - Improvement in stop-cooks - Google Patents

Description

figluteh tatzs geteilt @fitta Letters Patent 1Y0. 76,106, dated Merch 31, 1868; antedated .March 18,1868.

IMPROVEMENT IN STOP-GOGKS.

. ein ngettltntnnh tt in .tlgttthttas ttett ttt mating gaat uitge stmt.

TO ALL WHOM IT MAY CONCERN:

Be it known that we, CARL SGHULTZ and THOMAS Wannen, of the city, county, aud'State of New York, have invented a new and useful Improvement in Step-Cocks; and we do' hereby declare that the following is a.

full, clear, and exact description thereof, which-will enable those yskilled in the art to malte and use the samt',

reference being had to the accompanying drawing forming'-part of this specification, in which drawing- Figure 1 represents a longitudinal central section of this invention.

Figure 2 is-a detached plane of the valve in a larger sealethan the previous figure.

Similar letters indicate corresponding partsA This invention relates to a. stop-cock, the' body of which is made of glass or other vitreous material, and provided with a flat or conical. seat, against whichthe valve is pressed by means of a screw-handle lever or other suitable device, in such a manner that a stopcock is obtained whieh is easily kept tight, evenagainst liquid or fluid` under a high pressure, and which is so constructed that the liquid or fluid in discharging will 'pass entirely through glass, and'will not be permitted to come in contact with any metal or other materialliable to impart to the same an impure tastcor deleterious properties.

The valve is composed of a. disk of leather, `In'diaruhber, or other suitable soft material, which is secured to vthe end of a metal .stem by means of a button, formed at the end of said stem, and dropped into a circular recess in the disk,y said recess being provided with lips,lwhich catch over the edge of the button and retain the same iirmlyin position, without, however, preventing it from turning on the button in suchia manner that the valve can always be firmly vpressed up against the scat, and a close it is obtained without danger of splitting the vitreous body of the stop-cock. l

A represents the h ody of ourstop-cock, whichis made of glass, or some other vitreous material. This'body is provided with a. channel, a, the 4outer end of which ils'enlarged so as to form a recess, c, and seat, b, for the valve B. From the recess e, and close to the seat b, extends a lateral channel, cl, which communicates with the discharge-spout C, and in practice this lateral channel will be made somewhat largerv than the channel c; in the body A, so that the liquid will discharge freely and without causing a back pressure on the valve. The spout G'is also made of glass or other vitreousvmaterial, and it is either/made solid with the body A, or connected to the saine by a suitable` cement. The recess c is -made cylindrical, just large enough to receive* the valve B, 'which is composed of a disk ofleather, or other` suitable material, that is secured'to the end of the metallic stem D.

In the drawing a stem is shown, lwhich .is provided with a serew-thread, Z, and handle,f; the screw-thread being tappedv into a metal cap, "E, which is attached to the end of the body A, so that by turning the handle the valve is moved toward and from the seat l. It mustbe remarked; however, that, instead of the screw-handle, other means, -such as knuckles or lever-handles, might be connected 'with the valve Withoiit changing the result.

'.lhe valve B is secured to the stern E by means of a huttomg, which is formed at the end ofsaid sten1,and which-drops into a circular recess, h, (see tig. 2,) in the valve B. Thisrecess is provided with lips t', and if the button has been ins'erted, these lips catch over the'inner edge thereof, and prevent the valve from coming oil spontaneously. At the same time the valve isfree to revolve on `the endof the stern, and it can be 'firmly forced up against its seat without being liable to be cnt or injured. It will be secu that the lateral passage d is beyond the valve-seat Z1 of the supply-channel; thus both passage and chanuel'will loe closed by the valve, and any fluid which may, esca-pe at the valve-seat will be checked when it reaches the discharge-passage-ZA The inner end of the body A of our stop-cock will be connected with a fountain containing carbonio acid, watelyor other liquid or uid under pressure, and the connection will-be `effected by an elbow, also made of glass orother vitreous material, so that the rliquid `er duid is not permitted tocotne in contact with any other material but glass, and the deleterious effectief stop-cocks made of brass or other metallic material is avoided.

What we elaimas new,`and desire to secure by Letters Patent, is-

The stop-cock herein described, the same having its body'construeted of glass or other vitreous material, with a valve, B, provided with recess k and lips i, for conn ection tothe operatng-stexn, and with a lateral passage', d, beyond the valve-seat of the supply-channel a, the same valve an'd closing the passage a by its direct thrust, and 'the channel d b y its lateral expansion, when all parts are constructed and operating substantially as described.

CARL SCHULTZ, THOMAS WARKER.

Witnesses:

W. HAUFF, GEO. F. SOUTHERN.

thus having two faces :md two sats, i

Images