US584278A - Intersection-valve - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. P. C. VINEY.

INTBRSECTION VALVE.

N0.4584,278. Patented June 8,1897.

TH: Noms PETERS ce, wom-mno., msmnoou' (No Model.) 2 Sheets-Sheet 2.

'I'. G. VINEY. INTERSEGTION VALVE. No. 584,278. Patented June 8,1897.

Ilwrrnn rares FREDERICK C. VINEY, OF PHILADELPHIA, PENNSYLVANIA.

lNTERSECTlON-VALVE.

SPECIFICATION forming part of Letters Patent No. 584,278, dated June 8, 1897. Application filed October l, 1896. Serial No. 607,579. (No model.)

To all whom t may concern:

Be it known that I, FREDERICK O.Vn\nva citizen 'of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Intersection -Valves, of which the following' is a specification.

@ne object of my invention is to so construct an intersection-valve as to provide for the firm seating of the gates as they are depressed; a further object being to so construct the valve that it can be readily used at points where a pipe of one diameter meets or crosses another of larger or smaller diameter; another obj ect being to provide an antifrictionbearing for the gate-spindles independent of the stuffing-boxes for said spindles, and a still further object being to provide for the ready application and removal of the bolts whereby the stuffing-box followers are retained in position. These objects I attain in the manner hereinafter set forth, reference being had to the accompanying drawings, in which- Figure 1 is a vertical sectional view of an intersection-valve constructed in accordance with my invention. Fig. 2 is a sectional plan View on the line a; x, Fig. 1. Fig. 3 is a sectional plan view on the line ry y, Fig. 1; and Fig. 4 is a side elevation of the upper portion of the valve-casing.

The chest 1 of the valve has in the present instance four branches 2, corresponding with the four valve-seats 3, which occupy the four sides of the quadrangular interior of the chest, said valve-seats being secured to the four sides of the valve-chest in any available manner as, for instance, by ribs on the backs of the seats, which are adapted to dovetailed openings in said sides of the valve-chest, as shown in Fig. 2, or by pouring molten metal between a rib or tongue on the back of the seat and a recess in the valve-chest in the ordinary manner.

The valve-seats are inclined inwardly from top to bottom, and the vertically-movable valves or gates 4: have correspondingly-inclined outer faces, so that when depressed to their full extent they will fit snugly against the faces of the valve-seats.

In order to insure the retention of the gates 4E firmly in contact with the seats when said gates are depressed, each corner of the valvechest has au inwardly-projecting rib 5, as shown in Fig. 3, and when either gate is depressed to its full ext-ent its edges are brought into contact with the faces of these ribs,'which iiank the valve-seats, and as these faces overlap the valve-seats at an angle contactot' the edges of either gate with said faces effectually prevents any outward movement of said gate from its seat and thus insures a tight joint between the two. Each gate has at the upper end ahollow boss 6, in which is inserted a nut 7 which receives the operating screwstem S, the nut and the recess formed in the hollow boss G for its reception being square or otherwise shaped so as to prevent rotation of the nut, so that turning of the screw-stem in one direction or the other will effect the raising or depression of the gate.

On the top of the valve-chest l. is a cap or hood 9, from which project upwardly a series of stuffing-box casings 10, one for each stein 8, each of these stufng-box casings having a follower 11, which serves to confine the packing material against a ring 12, seated upon a shoulder at Jthe base of the casing, this ring being secured in place by set-screws 13 and serving also to vertically con fine a shouldered sleeve 14, of brass, Babbitt metal, or other non -corrosive material, which is suitably seated in the opening at the top ot' the hood 9 and serves as a seat fora flange or collar 15 on the screw-stem 8, slight play of this collar between the ring 12 and the shoulder of the ring 14 being preferably permitted, so that the collar is never likely te become rusted or stuck in its bearing.

As the internal ring 12 is secured iu place independently of the stuffing-box follower and packing said follower and packing can be readily removed and replaced without disturbing the ringl?J or the valve-stein.

In the stuffing-box structure, above the head 9, are formed lateral slots 16, which communicate with the outer portion of said structure through central radial slots 17 and have widened bases, as shown by dotted lines in Fig. 1, these slots 16 serving to receive the bolts 19, whereby the stuffing-box followers 11 are confined in place, the bolts being first introduced radially through the slots 17 and then moved laterally until they assume their proper relation in respect to the flanges of IOO the stuffing-box followers, the heads of the bolts traveling in the widened bases of the slots 16 until they reach the ends of the same, and the slots 17 being afterward filled by means of blocks 20, if desired.

Mounted on the boss 6 of each of the gates i is a sleeve or washer 21, which rises and falls with the gate and by contact with the top of the hood or cover 9 serves to limit the rising movement of the gate. Hence by varying the depth of this sleeve or washer the rising movement of either gate can be restricted to any desired extent. By this means gates of the saine size can be used in each valve-chest even when some of the connections and some of the valve-seats are smaller than others, as shown in Fig. 3, without risk of raising a gate above the valve-seat and thereby incurring the liability of injuring or destroying said seat by engagement of the lower edge of the gate therewith when said gate first commences to descend.

ries of inclined seats around its sides, and Y ribs projecting inwardly from the corners of the chest so as to overlap said seats, and vertically-movable gates inclined on the outer sides to accord with the seats, and adapted to engage at the edges, with the inwardlyprojecting ribs at the corners of the chest, substantially as speciiied.

2. The combination of the valve-chest having a plurality of seats with vertically-moving gates, the operating screw-stems therefor,

and detachable sleeves or washerswhereby the rising movement of the gates is restricted, substantially as specified.

3. The combination of the gate-operating screw-stem having a flange or collar thereon, the valve-chest having a shouldered bearingring in which said tlange is seated, and a stuffing-box base-ring whereby said bearing is retained in place, said base-ring permitting a slight vertical play of the flange of the screwstem in its bearing` substantially as specified.

4. The combination of the valve-chest having valve-seats of different diameters, with valves or gates all of the same size, and dif- Jferential stops for restricting the rise of the valves, whereby a valve which closes an opening of small diameter is arrested at an earlier point in the lift than a valve which closes an opening of larger diameter, substantially as speeied.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FREDERICK C. 'VINEY Witnesses:

CHAs. Il. BANNARD, F. E. BncHToLn.

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