US105027A - Henry belfield - Google Patents

Description

H.BELPIELD. VALVE.

Patented July 5, 1870.

waited giant ate-ii HENRY BELFIELD, or PHILADELPHIA, PENNSYLVANIA,-

Letters Patent No.'105,o27, dated July 5, 1870;

I, HENRY BELFIELD, of Philadelphia, county of Philadelphia, State of Pennsylvania, have invented an Improved Straight way Stop-Valve, of which the 7 following is a specification.

Nata-re and Object of the Invention.

My invention consists of certain improvementsin straight-way stopwalves, fully described hereafter thereby, in which the valve proper, actuated by a screw, is caused to permit or prevent the direct flow of fluid through two branches of the casing.

The main objects of my invention are the comicmizing of labor and material in valvesof this class, and of aii'ording ready means of regrinding the'valve to its seat.

Description of the Accompanying Drawing.

Figure l is a vertical secti an of a straight-way stopvalve, showing my improvement;

Figure 2, the same, showing the valve elevated;

Figure 3, the same, showing the manner of intro- "dncing the valve, part of the casing being detached;

Figure 4, a transverse section on the line 1 2, fig. 2; and

Figure 5, a perspective view of the valve proper.

General Description.

As regards general conformation, my improved stopvalve bears a resemblance to other stop-valves of this class, there being a casing, A, into which the valve can be elevated or depressed by turning a screw, B, and the casing having two branches, D I) One of the branches 1) is detachable, for the introdnction of the valve E to its place from below instead of from above, and the inner end of this branch projects a short distanceinto the interior or chamber of the casing, and against this face or seat the valve E hears when depressed, as shown in fig. 1.

The shape of the valve will be clearly understood by reference to the perspective view, fig. 5-

11, being the circular face;

d, the nut portion, having a threaded opening for receiving the screw B; ande 0, two ribs for hearing against inclined ribs ff, in the casing.

The action of the valve is asfollows:

0n turning thescrew in one direction, the valve is elevated into the chamberof the casing A, thereby permitting a direct flow of fluid through the branches, and on turning the screw in a contrary direction the valve is depressed, and bearing with its rear against the inclined ribs f]; has its face b brought into right contact with the end act the detachable branchD, so as to prevent the further How of fluid through the branches.

The stem .Bof the screw B passes upward through a cap, F, having internal screw-threads adapted to external screw-threads on a permanent projection or stufi'ing-box, G, on the top of and forming a part of the casing A, the said projection having a recess, to

the bottom of which a collar, h, on the screw-stem is confincdby the screw-cap F and intervening packingcontained in the recess,'as will be readily understood by reference to the'drawing.

When the valve has to be introduced into its place, the screw-cap F is detached and isv elevated with the screw, as shown in fig. 3, the branch D being also removed, so as to permit the insertion of the valve into the chamber of the casing in the inclined position shownin fig. 3, after which the valve is adjusted to its proper vertical position so as to receive the screw, which is now depressed and turned until the several parts assume the positionshown in fig. 1, when the branch D is replaced, and the valve is in working order,

It will be readily understood without explanation how the valve may be withdrawn, when necessary.

The advantages'of my invention may be explained as follows: I In ordinary valvesof this class the valve is used only in combination with a wedge or its equivalent,'inasmuch as it is difficult to obtain a-perfect bearing both 011 the inclined ribs 1, and against the valve-seat, the

wedge and valve moving slightly upon .each other so that each can fit closely to its bearing.

By the use of a detachable branch D, in connection with avalve having inclined projections e secured to or forming part of the same, the necessity of employing a wedge is avoided, inasmuch as any imperfection in the fitting of the, valve; either against its seator on the inclined ribs f,may be readily corrected,

owing to theease with which access to the valve may be obtained.

1 Valves operating vertically, so as to be raised into a chamber above the direct water-passage, have hitherto been liable 'to objection in consequence of the difliculty of refitting after the seat or valve. be-

' comes worn; a difliculty which is effectively obviated by theuse, in connection with such valves, of a detachable stem, having a seat at its inner end.

It will be seen that the threaded nut d is fitted loosely to the valve, so as to be readily detached and replaced, should the threads become worn, and so as to permit a slight play of the valve independent of the spindle, lateral pressure against the latter being thus avoided.

I do not claim, broadly, a valve-casing having a deta'chable branch, nor do I claim forming a valve-seat on the end of such branch; but

I claim- 1. The combination in a straight-way valveof a caning, A, having a permanent branch, D, and de- 41, sliding on the valve and receivin z the spindle B, all tachable branch D, with a valve-seat at its inner ias 'set forth. 0

it and, inclined ribs fj; and a-valve, E, having a ver- In testimony whereof I have signed my name to tical motion on a spindle, B, and which, on being this specification in the presence of two subscribing depressed, is caused to bear directly on the said ribs, witnesses.

and against the end of the detachable branch D, all HENRY BELFIELD. as set forth.

2. The valve E, having a. vertical face, 5, and in- Witnesses: clined at the mar, in combination with a vertical seat, W. O. BUCHANAN,

a, inclined lugs f, vertical rotating spindle B, and nut GEO. W. STORER.

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