US606655A - James - Google Patents

Description

No. 606,655. Patented July 5, |898. J. H. FOGARTY.

FLOAT VALVE. (Application med oet` '15, 18m.)

(No Model.)

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l UNITED STATES;

PATENT OFFICE.

`JAMES I-I. FOGARTY, OF NEIV YORK, N. Y.

. i, v FLOAT-VALVE..

v SPECIFICATION formingpart of Letters Patent No. 606,655, datedJ'uly 5, 1898. Application filed October 15, 1897. l Serial No. 655,352. (No modelJ The obj ect of my invention is to provide an s automatic means for draining a iioat-valve of any accumulation of liquid which may find its way therein.

A further object is to provide a balanced valve with a oat device for normally seating the same and for unseating the valve upon a change of the normal water-line of the floatcontaining vessel.

With these features in View my invention consists of the following construction and combination of parts, the details of vwhich will first be fully described and thefeatures of noveltyl contained therein then set forthand claimed.

Figure 1 represents a sectional elevation of an apparatus to which I have applied my invention. Fig. 2 represents a transverse elevation and section looking downwardly upon the line a: w of Fig. 1. Fig. 3 is a sectional view of the valve-chamber, taken on the line y y of Fig. 4, showing the valve removed.V Fig. 4 is a vertical section on the line z z of Fig. l1 with parts in elevation. Fig.- 5 is an enlarged detailed sectional view of the float and valve stems, with pipe connection partly broken away. l Fig. 6 is a longitudinal section of the valve-stem and pipe connection. Fig.

7 is a similar view, partly in sectionv and partly in'elevation, of a modified form.

My invention is particularly applicable to steam-traps; but it may be applied in other connections and for other purposes for controllingthe iow of a iiuid for which it may be found adapted. For the illustration of my invention, however, lit will be described only in connection with a steam-trap.

In the drawings, 1 represents a chamber l containing a float 2, provided with oppositely-k disposed stems 3, arranged to have a limited vertical reciprocating movement in bearings 4 at the l[op and bottom of said chamber. The lower end of chamber 1 is preferably formed with a contracted extension 5, within which 'the lower float-stem 3 operates.

6 is a valve-chamber, preferably separate from the chamber-l and its extension 5, and bolted or otherwise secured, as at 7*, to the chamber 1, so as to be in free communication therewith. This valve-chamber has a pair of valve-seats 8 in axial line and a connecting by-pass or passages 9, connecting the valvechamber around the central passage therein.

`l0 are a -pair of balanced valves seating downwardly upon the valve-seats 8 and connected by valve-stem 15. V11 is the central or main chamber of the valve-chamber and is in free communication with a port 12, leading to the chamber 1.

13 isthe inlet-pipe of the chamber 1, which may beV a drainage-inlet or a steam or other inlet, according to the purpose for which the invention is used. 1 y Y 14 is the drain or other outlet from the chamber 1 and is in free communication with thevalve-chalnber 6.7.The lower Iioat-stem 3 is preferably tubular down to its connection with the lateral pipe 16, which rigidly unites the float-stem 3 to the valve-stem 15. The valve-stem 15 is also made tubular, so as to provide a drainage connection from the hollow float 2 down through the valvechamber 6 out into the outlet-pipe 14. The connecting-pipe 16 is preferably screwed into the iioat-stem 3, and threads are formed upon its oppositeends, by means of which nuts 17 may be set up against the valve-stem 15 to adjust the parts inthe proper position.

The valve-stem 15 has preferably a circular bearing formed transversely through it, through which the pipe 16 passes, thereby forming a bearing between the two, and an annular recess 18 is preferably formed around the edge of the bearing, so that no matter what the angle of adjustment between the pipe 16 and the valve-stem may be an open communication will be established' between the same for draining the float-valve 2.

In Fig. 6 the valve-stem 15 is shown hollow throughout its length, while in Fig. v7 the lower portion of the valve-stem only is tubular. In the iirst case the liquid may escape IOO at both ends of the valvestem, while in the latter case the liquid escapes through the lower end only.

It will be obvious that owing to the rigid connection between the float and the balanced double valve the latter will partake of the reciprocating movement of Ithe ioat due to the Varying amount of fluid in the chamber, the valve and oat being suitably guided for that purpose.

A series of screw-plugs 23 are employed, as indicated, in order that access may be had to the several parts.

25 is a removable cover for the chamber l, through which the iioat may be removed when desired.

In operation the device may be set so that the float will open the balance-valve at any predetermined height of water and to close the same when the liquid falls below that point.

The balanced valves l0 are adj ustable,with relation to each other and their seats, upon their stem, as shown. By this adjustment also, if desired, the height of the float in the chamber when the valves are seated may be Varied.

Having thus described my invention, what I claim, and desire to obtain by Letters Pat-v ent, is-

l. The combination of a chamber, a float therein, abearing at the top of the lioat, a tubular stem forming a bearing at the lower end of the I'loat, a tube extending laterally a tubular stem forming a bearing at the lower end of the float, a tube extending laterally between the neat-bearings, a tubular Valvestem secured to said lateral tube, a double balance-Valve carried upon the said valveste1n,Valve-seats for the valves, and inlet and outlet ports for the chamber, the float-stem, lateral tube and Valve-stem forming a drainage connection for the interior of the iioa-t.

The combination, in a trap, of the hollow float, a bearing at the top of the float, a tubular iloat-stem forming a bearing at the lower end of the float, a lateral tube connected therewith, a reciprocating tubular Valvestem having an opening at right angles thereto to receive the lateral tube, adjustable means for securing the valve-stein upon the lateral tube and a slide-Valve carried upon said valve-stem.

In testimony whereof I affix my signature in the presence of two witnesses.

JAMES II. FOGAR'IY.

Vitnesses:

WM. II. WEIGHTMAN, W. E. KIMBALL.

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