US639403A - Cock. - Google Patents

Description

Patented Dec. l9, I899.

G. 0. H. KLDPP.

Application filed Oct. 31, 1898.)

(Ho Model.)

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in STATES PATENT OFFicn.

GEORGE ONNO HOMFELD KLOPP, OF LONDON, ENGLAND;

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SPECIEIGATIQN forming part of Letters Patent No. 639,403, dated December Application filed October 31, 1898. Serial No. 695,071. (No model.)

To whom it may concern.-

Be it known that I, GEORGE ONNO Hon- FELD KLOPP, a subject of the Queen of Great Britain and Ireland, residing at Chelsea, London, England, have invented Improvements in Cocks or Taps, of which the following is a specification.

Cocks or taps (hereinafter called taps have heretofore been constructed with ballvalves working against an annular seatof elastic material, such as india-rubber, and opened by an endwise-movable spindle; but all such previous constructions, so far as I am aware, possess many serious practical disadvantages, being costly to construct, difficult to maintain in a fluid-tight condition, liable to distortion and rapid wear of the valve-seat, and difficult to repair while under pressure.

This invention relates to an improved construction of tap that is very simple and cheap to construct and very efficient and durable in use.

In the accompanying drawings, Figure 1 shows in central vertical section a tap c011- structed according to my invention, the tap being shown open. Fig. 2 shows the same tap when closed. Figs. 3, 4, and 5 represent a plan, section, and front View, respectively, of a clamp-ring, hereinafter referred to.

The tap, which is of the well-known valve bib-tap pattern, is formed with two chambers orpassagesviz., an outlet+chainberA and an inlet-chamber B. In the inlet-chamber B, directly below a spindle O and in the open space B, I place a ball D, made of some hard non-compressible or not easily compressible material-such,for example, as metal. I find in practice that a hollow metal ball capable of floating in water or other fluid may advantageously be used. This ball 1) when the tap is open lies in the cup of the screw-cap E, which forms the lower portion of the space B, in which the metal ball works. I use a screw cup-shaped cap, as in some forms of tap at present in use, as it enables me to remove the ball easily when necessary. I

In casting the tap an aperture is left in the diaphragm between the chambers or passages A and B, and on the upper side of a shoulder surrounding this aperture that is in the chamber A there is placed an india-rubber or other suitable ring or washer F, that serves as a seat for the ball D. The ring or washer F, which is inserted through the chamber A, is secured in. position by a loose clamp-ring or distance-piece G, having an aperture G on one side to permit of the flow of liquid through the tap. The clamp-ring is also inserted through the upper or outlet chamber A and is held in position laterally by a keyH in the outer casting, which fits into a keyway H in the clam p-ring. (See Fig. 3.) When the stuffing-box L, hereinafter referred to, is screwed down into the outlet-chamber A, the clampring G is forced downward thereby and held perpendicularly, thus firmly retaining the washer or ring I in position, and as the clampriug is prevented from rotating the screwing in of'the stuffing-box L will not produce any twisting or distortion of the seat-ring F. This method of introducing and securing the seating is a most important feature of my in vention, as I have found in practice that a ring inserted and secured by projections be low the aperture and between the two chambers becomes dislodged or forced out of shape under high pressure, thus causing an escape of fluid. In the outlet chamber or passage A, I place a spindle C, as in former constructions of taps. The spindle O is attached to the screw-spindle I and is forced down through the aperture between the two chambers and raised by means of the screw when the handle J at the top is rotated. In order to minimize friction against the ball D, I may attach to the face of the spindle O asmall con vcnientlyshaped pad of suitable material, such as indiarubber. At a suitable distance below the crutch or handle J on the screw-spindle I there is placed or formed a ring K to limit the distance that the spindle can be screwed down. An ordinary stuffing-bon L L, with stuffing M, is screwed into the top of the tap, as shown, to secure .the screw-spindle I and the clamp-ring G in position and to prevent leakage. The ball D is made large enough to prevent its passing through the aperture formed in the tap between the two chambers A and B, so that the ring or washer F can be replaced by a new one without having to cut off the supply of water to the tap, the ball at 7 this time seating itself against the metal edge of the aperture.

Upon water or other liquid being introduced to the chamber or passage B under pressure the ball D rises from the cup in the screw-cap E into the space 13 toward the aperture between the two chambers and is there kept in position against the rubber or other ring or seat F by the pressure of the liquid and in this way closes the tap.

To open the tap, the spindle O is screwed down, so as to force the ball toward the cup in the screw-cap E, and thereby open the aperture between the chambers and permit the water or other liquid to flow through the tap.

As will be seen, the improved cock is very simple in construction, the elastic valve-seat F is held firmly in place without liability of its being distorted by the means employed for fixing it in place or of being dislodged or forced out of shape byliquid under high pressure'incontact therewith, and the said seat can be readily inserted and fixed in place or removed while liquid under pressure is with in the chamber 13.

:What I claim is- 1..Acock or tap comprising a body formed with an inletchamber having a dischargeaperture, a ball-valve located in the inletchamber and of such a size that it cannot pass through the discharge-aperture, a ring chamber and of such asize that it cannot pass through the discharge-aperture, an elastic ring or washer held in position by a non-rotatable clamp-ring within the said aperture so as to serve as a valve -seat and means whereby the said ball can be forced from its seat against the pressure of the fluid, substantially as described. v I

3. A cock or tap comprising a body formed with an inlet chamber having a dischargeaperture, an elastic washer held upon the discharge side of said aperture by a non-rotatable clamp-ring, said elasticwasher projecting beyond the edges of said aperture and serving as a valve-seat for a ball-valve Within said inlet-chamber, substantially as described.

4. In a cook or tap the combination of a body formed with inlet and outlet chambers, v

a diaphragm separating said chambersand.

having an aperture therethrough, a ball-valve located within said inlet chamber and of such a size that it cannot pass through said aperture, an elastic Washer within said aperture, a clamp-ring pressing against. said class tic washer and formed with a keyway, a key on said body engaging said keywayand hold- H ing said clamp-ring immovable and a stuffingbox adaptedto force down and hold said non-1 rotatable clamp ring, substantially as described. v p Signed at 2 Popes Head alley, Oornhill, in the city of London, this 7th day of July, 1898.

' GEORGE .ONN HOllIFELD KLOPPJ \Vitnesses: a o

EDMUND S. SNEWIN, PERov E. MAT'rooKs.

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