US988994A

US988994A - Valve for pipes which convey melted sulfur.

Info

Publication number: US988994A
Application number: US17923103A
Authority: US
Inventors: Herman Frasch
Original assignee: FRASCH SULPHUR PROCESS Co
Current assignee: FRASCH SULPHUR PROCESS Co
Priority date: 1903-10-30
Filing date: 1903-10-30
Publication date: 1911-04-11
Anticipated expiration: 1928-04-11

Description

H. FRASGH.

VALVE FORYPIPBS WHICH 00mm MELTED SULFUR.

APPLICATION FILED 0011 30, 1903.

Patented Apr. 11, 1911.

um um nu um qwitumaca HERMAN nausea, on

To all whom it may coacemr i J citizen of the United 5 N TEDsTATEs COMPANY, A conronn'rron or OFFICE-7' nnw'ironx, N. z, Assmnon. .ro cum-mason scum r vanvnnon urns wmon CONVEY mnmnb sum Be it known that I HERMAN Fmson, a tates, residing the city .of New York, borough of Manhattan, and county of New York, in the State of New York, have invented new and useful Improvements in Valves for "Pipes which Convey Melted Sulfur, of which the following is aspecification.

This invention relates more particularly to valves for pipes which convey melted sulfur, as, for example, sulfur which has been melted artificially in an underground de-' .posit and then forced or pumped up. ee

my prior Patents'461 ,429 and 461,430, dated,

-October 20, 1891. Each of the improvements constituting said invention is in made to change the valve, it is found impossible to move it.

In accordance with the present invention,

the valve has a loose connection with the screw, or other part of the valve-moving means, andalso has a valve stem or otherprojection beyond the casing adapted to'be struck with a hammer or other instrument. The loose connection permits the valve to move independently of the screw, and thus tobe loosened from the solidified sulfur by the blow of the hammer.

Another difficulty in usin valves of the construction commonly emp oyed for water to close a pipe for conveying melted sulfur arises from the liability to leak of the stuff ing box through which the valve stem moves. Melted sulfur soon corrodes packing and it is besides ver penetrating. Its temperature is considera ly above the boiling .point of water; and the. contact of .melted sulfur with a mans skin is apt to make a bad burn; as well because of its cor- Application fil ed October 30, 1908. Serial No. 179,281.

' roding action as from its hi h gua'ntity mag so that the escape of a sma be the cause of suffering and o a loss whi'c Specification ofl'ietters'lntent. Patented'Apr. 11 1911.

is far beyond the value of the escaping sulfur, if the ordinary valves should be used on sulfur-conveying pi es.

In accordance wit the present invention, the difliculty is in part overcome by arranging the handle, or equivalent device, for ma mpulatmg the valve 0 posite a-solid part of the valve and provi mg connections for transmitting the power therefrom to the valve stem which is located with the hole wherein it moves at a safe distance. Esca ing sulfur is, therefore, not apt to reach t e workman who is manipulating the valve.

A further feature of the invention consists in making the valve double acting with a principal seat for thepipe and a secondary seat for the hole through which the valve stem works. Thus, when the valve is open, it stops communication between the valve chamber and the hole for the valve stem.

The invention also comprises the parts,

improvements and combinations hereinafter.

set forth. p

In the 4 acc'ompanyin drawings, which form part of this speci cation: Figure 1 is a side view of the new or improved valve in what is considered its most advantageous form, with a sulfurconveying pipe attached; Fig. 2 is a sectional vlew of the same in a plane parallel to that of Fig. 1, without the pipe; Fig. 3 is. a view thereof vin horizontal section; Fig. 4 is a side view of another form of the valve, with attached pipe, which form is within the invention, but is considered-less advantageous than the valve of Figs. 1-3, in that it lacks the ar'- rangement by which the manipulating handle is removed away from the hole for the valve stem; Fig. 5 is' a view of this latter form of valve in section in a plane parallel with that of Fig. 4; and Fig. 6 is a sectional view of the same in a vertical plane at right angles to those of Figs. 4 and 5.

The casin 1, as shown, is cast with the principal valve seat I) at one end of the valve chamber and has the other end of said cham ber closed by a plug a, which 'is perforated with a hole for the valve stem and on which is formed the secondary valve seat 01. The a valve e is double acting. When closed, it

bears'on the seat I) and closes the communication between inlet passage and outlet passage 9, with which the two portions of sulfur'pipe h'connect, respectively. When '10 open, the valve bears upon the seat d and closes communication between the valve chamber and the hole through which the valve stem is passes. Thus there is-no need for a stufiing box for the valve stem; since ther valve itself prevents leakage when it is valve.

To insure against possible leakage burning the workman who may be manipulating the valve, the handle or manipulating device Z is (in the valve of Figs. 1-3.) placed OPP):-

site an imperforate part of the valve casing at a suitable distance from the hole for the valve stem. For moving this valve, use is made, asshown, of a screw m, which is provided with a traveling nut (formed, as.

shown, by a threaded opening in a cross piece, n), andhas its said nut connected by a bridle with the valve stem 70, said'bridle-con sisting of the side rods p sliding in ears 9 on.

the valve casing and the, cross piece 7* fitting between stops 8 on the valve stem'la.

The screw m is connected with the valve casing by a head fitting in a, socket, so that the screw can be turned in either direction, but cannot bemoved endwise. The head and 40 socket can be made in any desired way; as

shown, half of the socket is cast in with the valve casing and the other half is .bolted on. The stops .9 may be formed in any suitable way. As shown, both of them are integral with the valve stem, and the cross piece is notched to receive the valve stem.

' In order that the valve may be loosened, should it become fast by the solidification of sulfur thereon, there is a butting or loose connection between the valve and the screw for moving. it. This loose, connection for moving the valve to close the pipe may be made in various ways; but, as shown, it is formed by maln'ng the distance between the stops a greater than the thickness of the intervenmg cross piece r, so. that when the latter is moved inward and strikes the inner stop, without moving the valve, the outer stop 8 does not prevent the motion of the valve when the workman hits the outer end ofthe valve stem is with a hammer.

It is considered best to havethe stops normally and, indeed, permanently separated;

but abutting or loose connection could be made by stops which normally allowed no play to the interposed device, but which could be separated Ionoccasion. Thus the nuts t on the side rods p could be loosened to allow of the cross piece 1' to be moved in either direction independently of the screw m. Without loosening the nuts 13, a tool could also be laced behind the inner one of the stops s for loosening the valve when' i it is closed and the cross piece a" is against the outer stop 8, said stops being separated as shown.

As shown in Figs. 46; the screw u, carrying the handle 2, is in the form of a sleeve,

loose on the valve stem is between the stops '0, which are separated by a greater distance than the length ,of said sleeve. When the sleeve makes contact with the inner stop, the

valve can be forced inward by the blow of a hammer, and when it. is against the outer ,stop the valve can be forced outward independently of the screw.

Thescrew sleeveengages astiitionary nut (formed, as shown, by a threaded opening in the cross piece w), whose ends are supported by standards or, bolted at the. foot to the valve casing and connected by collars and nuts with the cross piece w. By separatingth'e collar and nut of each standard as, a loose connection could be established between, the valve and the standards a: independently of the space between the stops 4) being greater than the length ofsleeve u.

. vStandards w arepart of the valve-moving means, since they hold the principal nut '10, which causes the screw u to move endwise and soto, impart motion to the valve. I claim as my invention or discovery:

, 1. A valve provided with a projection beyond the valve casing; and also. with exteriorly located valve moving means for forcing the valve to and from its seat, said projection being arranged for receiving a blow independent of said means and having with the latter a loose valve closing connection so as to allow independent movement to the open valve in the direction of closure under a blow on said projection, substantially as described.

2. A valve having the five following feaa hole in the casing wall opposite said valve seat on the valve side of said valve seat, and also having an outlet passage leading laterally through the casing wall from the space on the valve side of said valve seat, in combination with the valve in said casing, a valve stem projecting through said hole, a manipulating device located opposite an imperforate part of the casing, and valve movin connections between said manipulating evice and said valve stem, substantially as described.

4. A double acting valve having a plain unpacked valve stem projectin t rough a lain hole in the casing devoi of stuffing ox, together with means outside the casing for mov' the valve in both directions through said valve stem and for holdin the valve closed by positive pressure, an also having a principal seat on which the valve bears when closed and a secondary seat around said hole,,substantially as described.

5. A. double acting valve having means for moving .it in both directions with a manipulating device located opposite an imperforate art of the casing and a plain unpacked va ve stem projecting through a. plain hole in the casing, said valve also having a principal seat on which the valve bears when closed and a secondary seat around said hole, substantially as described.

6. A double acting valve iaving means for moving it in both directions located outside of said casing with'a loose connection between the same and the valve and a plain unpacked valve stem projecting through a plain hole inthe casing, sai valve also havin a principal seat on which the valve bears W hen closed and a secondary seat around said hole, substantially as described.

7. A valve which has a loose connection with an appropriate part of the valve-moving means and a projection beyond the valve casing adapted to be struck in order to loosen the valve by a blow, and which also a has a valve-manipulating device located opposite an imperforate part of said casing, substantially as described.

.8. A valve havin a stem projecting through the valve casing with stops outside said casing on said stem, and a movable valve-shifting device fitting between said stops so as to form with stem a loose connection which allows the valve to be moved independently of said device, substantially as described.

9. A valve havin a stem projecting through the valve caslng with stops outside said casing on said stem, and a movable valve-shifting device fitting between said stops which are normally or permanently separated by a wider space than the interposed ortion of said device occupies, substantia 1y as described.

10. A valve having each of the following features, namely: a casing passage on one side of the valve seat, a valve stem projectingI at right angles to said passage thro h a ole in casing on the same side of t e valve seat, a nut outside said casing, a screw engagin said nut, means whereby one of the two last mentioned parts is held from rotation and one of them from endwise movement, and a connection between said stem and the part which is allowed to move endwise, substantially as described.

11. A valve having a plain valve stem projecting at one end of the casing and laterally disposed inlet and outlet passa es on opposite sides of the valve seat, an also having a device for moving the valve in both directions located at the opposite end of said casing outside the same and connected with the valve stem, substantially as described.

12. A valve havin the valve stem projecting at one end of t e casing and laterally disposed inlet and outlet passages on opposite sides of the valve seat and also having stops on said stem, a movable valve shifting device interposed between said stops and a valve-manipulating means located at the opposite end of said casing and connected with the valve stem through said valve-shifting device, said stops being separated normally or permanently by a wider space than the interposed portion of said device'occupies, substantially as described.

13; The combination with a pipe which conveys melted material, of a valve which has a projection beyond the valve casing adapted to be struck and valve movin means and also a loose connection with sai valve-moving means,.so that the valve can be loosened by a blow should it stick fast, substantially as described.

14. A va ve having a plain valve stem projecting at one end of the casing and laterally disposed inlet and outlet passa es on opposite sides of the valve seat, and also having a screw for moving the valve in both directions located at the opposite end of said casing outside the same and connected with the valve stem, substantially as described. r

15. A screw down valve devoid of stutling box and provided with a lateral outlet and also with a mani ulating device located opposite an impertorate part of the casing, substantially as described.

16. A valve having a valve proper, a valve seat between inlet and outlet passages, a projection on the opposite side of said valve proper from said seat, a valve operating screw and nut outside the valve casing, and

loose valve 0 ening and valve closing con- In testimony whereof I have signed my nections outslde the valve casing between name to this specification in the presence of 10 said projection and one of sald valve opertwo-subscribing witnesses.

atin parts said projection extending be-' 1 yond the valve casing and being adapted to HERMAN FRASOH' be struck in order to loosen the valve by a Witnesses-z blow should it stick in its open position, F. W. LOTI-ID-IAN,

- substantially as described. I J. C. UPDEGROVE.