US1153280A

US1153280A - Reversing-valve.

Info

Publication number: US1153280A
Authority: US
Inventors: Johan A Wohlberg
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-04-03
Filing date: 1915-04-03
Publication date: 1915-09-14
Anticipated expiration: 1932-09-14

Description

1. A. WOHLBERG.

REVERSING VALVE. 'APPLICATloNfmx-:D APR. si 1915.

Patented Sept. 14, 1915.

4 SHEETS-SHEET L.

:OLUMBIA PLANDGRAPIQ C0.. WASHINGTON. D. c.

L A. WOHLBERG.

REVERSING VALVE. I APPLICATION FILED APILs, I9I5.

Patented sepII.. 14, 1915.

rrafQ/I/fy. y

l. A. WOHLBERG.A

REVERSING VALVE.

APPLlcAloN HLED APR; 3, 1915.

Patented sept. 14, 1915.

4 $HEETS-SHEET 3.

3 u w um rrof/VEX 1. A. WOHLBERG.

REVERSING VALVEl APPLICATION HLED APR.3.1915.

L. A Patented Sept. 14, 1915.

4 SHEETS-SHEET 4.

F/. 7 .//v VEA/Toe.

7" TOR/Vix COLUMBIA PLANOGRAPH C0..wAsMlNo'roN. D. c.

JOHAN A. woI-ILBERG, or CHICAGO, ILLINOIS.

nEvERsrNG-vALvE.

Specification of Letters Patent. Ptiltd Sept. 14, 1915.

Application filled Apri13, 1915. Serial N o. 19,024.

To all whom t may conce/m Be it known that I, JOHAN A. WOHL- mine, a citizen of the United States, residing at Chicago, county of Cook, State of lllinois, have invented a certain new and useful Improvement in Reversing-Valves, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to valve devices of the type employed in connection with open hearth or heating furnaces, soaking pits, etc., for the purpose of controlling the direction of flow of air and other gases and it has for its objects to produce a simple and novel valve whose port openings shall be large compared with the space occupied by the valve apparatus; to produce a valve which will permit the use of a metal shell lined with refractory material which, if in the form of bricks, will require only ordinary commercial shapes which, however, will be firmly held in place; to produce a valve lined with refractory material which may be repaired quickly and easily; to produce a valve lined with refractory material which will permit the repairing of a damaged or worn out section without disturbing the remaining sections; and to produce a simple and effective valve loperating mechanism which will permit the valve to be raised, turned and lowered positively and without being subjected to blows or jars of any kind.

The various features of novelty whereby my invention is characterized will hereinafter be pointed out with particularity in the claims; but, for a full understanding of my invention and of its objects and advantages, reference may be had to the following detailed description taken in connection with the accompanying drawings, wherein:

.Figure l is a side elevation of an apparatus arranged in accordance with one form of my invention; Fig. 2 is a vertical section taken approximately on the irregular line 2 2 of Fig. 3; Fig. 8 is a section taken approximately on line 3-3 of Fig. l; Fig. 4 is a bottom plan view of the valve shown in Figs,- 1,2 and 3; Fig. 5 is a setcn taken wwwllllHllumammal pared with approximately on line 5-5 of Fig. 4; Fig. 6 is a section taken approximately on line G-G of Fig. 4; Fig. 7 is a section approximately on `line 7 7 of Fig. 4; Fig. 8 is a top plan view of the stationary part of the valve or the valve seat containing the ports;

Fig. 9 is a view similar to Fig. 8 illustrating a modification; and Fig. l0 is a bottom plan view of the movable member of the valve coperating with the stationary part shown in Fig. 9. Y y

The movable member of the valve is best illustrated in Figs. 4 to 7 and,V referring to these figures, 1 represents a metal hood or shell which in top plan is in the shape of a ring `whose internal diameter is small comthe external diameter and which, viewed from the bottom, is in the form of an annular inverted trough. The trough-like chamber is divided into two parts, the line of division being a diameter of the valve where the valve is adapted to control four ports as in the main form of the invention illustrated. ln radial section the major portion of the trough is approximately in the form of a semi-circular arch but, as the dividing line is approached, the arch is flattened so as to make the upper portionsY of the two ends of each half of the valve take a downward inclination as indicated at 2, so that the dividing partitions, 3, do not have straight faces and therefore the entire inner surface of the two halves of the valve chambers is curved or arched and therefore a refractory liningwhen suitably supported from below along the edges of the valve chambers, will be self-sustaining so vfar as lateral displacement is concerned.

In the arrangement illustrated, horizontal flanges, 4, project inwardly from the sides and the ends vof the trough-like halves of the valves in a plane considerably above the loweredges ofthe hood or shell. The lining, 5, of refractory material rests upon the horizontal flanges, 4, and, as heretofore eX- plained, if built up of blocks or brick, it is not necessary to employ said shapes as ordinary commercial shapes will answer.

If desired, the hood may be made in sections, preferably divided along radial lines, or suitable connecting oints, 6, are provided. With this arrangement, individual sections of the hood or shell can be removed so that the lining within such section may be repaired from the exterior; or, the entireL lining within one section may be removed and a new lining built upfrom the izo,

top instead of from underneath, so that.

there will be no looseness or erevices in the arches; the removed section of the hood or shell being replaced after the repairing has been done or the new arch built up.

The portions of the hood, 7 and 8, projecting below the bottom of the refractorylining at the outer diameter and at the inner diameter, respectively, form flanges adapted Ato extend into a suitable body of water and form a water seal. Similarly, where the two halves ofthe hood join to form the diametrical partition. the metal is extended downwardly as. indicated at, 9 but not to the same depth as the'parts or

fianges

7 and 8. Thus the water seal of which the

flanges

7 and 8 form'partneed not vbe broken when it is desired' to shift the position of the valve f the other flanges.

tire valve seatis. in the form of a water pan,

15, having a continuous annular outer channel, 16, extending along the outer` edges vof the sector-like ports; a continuous annular channel, 17, forming the inner bo-undaries of the ports; and radial channels, 18, connecting the

channels

16 and 17 along the dividing lines between the several ports. r

The partsA are so arranged that when the water pan .isiilled with waterY as indicated at 19 in Fig. 2, and the valve is lowered with `its partition registering with either set .of channels 1 8, the

flanges

7 and 8 enter the water in the

channels

16 and 17, respectively, while the flanges 9 enter'the water in the corresponding ch'annels 18. In other words, the four'ports are connected vtogether in vgroups of two, the ports in each group depending upon which of its two positions the` valve takes. p

It willbe seen that in the construction just described, there is left in the center a suitable space. both in the movable member of the valve and in the stationary member, thus providing at the center of the valve de vice aspace in which there may be a firm foundation,'20, upon which the operating mechanism for the valve or some part there` of may be placed.

The operating mechanism for the valve is as follows :i At diametrieally opposite sides vof the valve device are uprights, 21 and 22, connected at the top by a suitable piece 23..

Extending between the uprights at Va point just above the valve are two' parallel hori- Zontal beams, 2l and 25. A stationary shaft or axle, 2G, extends between the beams 2l and 25 at a point where it crosses the axis of the valve. The member 26 is supported at the center by a post, 27, rising from the foundation 20. On the shaft 2G are two rollers, 28, upon which rests a shoe, 29. above the shoe and coaxial with the valve is a rod or bar, 30, suitably guided by the member 23 or some part connected therewith so as to permit it to move in the vertical direction. On the lower end of the member 30` is a wheeled carriage, 31, resting on the shoe 29. Surrounding the member 30 and resting upon a suitable anti-friction bearing, 32, on the carriage 31 is a block, 33, to which are connected the upper ends of a plurality of arms, 311, which extend downwardly and are connected at their lower ends to the top of the movable member of the valve.

track on which the carriage 31 may run, the

.track rising from both ends toward the middle as indicated at o5 and 3G and having a horizontal elevated portion, 37, of some considerable length at the middle. The shoe is mounted upon a horizontal screw shaft, 3S, supported at its ends in the

uprights

21 and 22 so as tobe free to turn but be held against endwise movement.

The shoe 29 carries a downwardly-pro iecting arm, 470, on the lower end of which is a roller, Ll1, this roller lying above the space or opening at the center of the valve. Fixed upon the movable member of the valve, in the open space at the center, is a ii-shaped device, 4:2, lying in a. horizontal plane with one arm parallel to the dividing partition in the movable member of the valve and with the other arm arranged at right angles to this partition.

The parts being in the positions indicated in Figs. 1 and 2, the valve being seated, and it being desired to reverse the valve: the screw shaft, 38, is rotated in any suitable manner as, for example, by means of a motor, 43, which may be mounted on top of the stationary framework and be suitably geared to the screw shaft. Since the screw shaftis held against endwise movement, the shoe 29 is compelled to travel, so that the carriage 31 rides up the incline 35, raising the movable member of the valve high enough so that the flange 9 at the lower end of the partition will clear the top of the pan at the sides ofthe channels 18 although the

flanges

7 and 8 will still project into the water in the corresponding channels in the water pan. This upward movement of the valve brings the V-shaped member, 42, into the same plane as the roller 4 1. The result is that as the shoe continues to travel toward the left, with the carriage riding upon the horizontal portion 37, the roller 41 will ber a2 until it strikes the other arm and will press against the latter and cause the valve to turn; such turningV movement continuing until the valve has traveled through an angle of ninety degrees `so as to reverse it. Thereafter, the continued movement of the shoe brings the downward incline 36 be neath the carriage and' allows .the carriage and therefore the movable member of the valve to descend and seat itself in its reverse position, all of the parts being left in the proper positions to permit the valve to be lifted and brought back to its original position by a mere reversal of thepdirection of rotation of the screw. It will be seen that the movements of the valve are positive and yet gentle, there being in no case a sudden dropping of the valve and the mechanism being therefore at no time placed under abnormal stresses.

The supporting arms, 34, are so positioned that they serve as steps to limit the oscillatory movement ofthe valve, one of the arms striking against one of the beams and 25 when the valve is in its working position.

As is usual with devices of this kind, the valve may be counter-balanced as, for eX- ample, by providing a suitable counterweight, 45, passing over pulleys, 46 and 47, on the framework and secured to the upper end of the rod of shaft 30.

There the valve is required to control only three ports instead of four, it may be constructed in exactly the same way as heretofore described except that the two partitions areV arranged degrees apart instead of being diametrically opposite each other, thus making one of the valve sections shorter than the other.

ln Fig. 9 I have illustrated the stationary part of a valve comprising three ports, 50, 5l and 52, sector-shaped as in the other form, but each almost 120 degrees long. rllhe water pan, 53, has a continuous outer channel, 54, and a continuous inner channel, 55, as in the other form, and three radial channels, 56, lying between the ports. rlhe valve itself is illustrated in Fig. 10, being just the saine as the other valve eX- cept that the two partition members 57 and 5S are arranged 120 degrees apart instead of being opposite each other, adapting them to be seated in any two of the channels 56. The operating mechanism for a valve of this kind will of course be modified on account of the difference in the angle through which the valve must be turned in order to bring it from one position to another.

lWhile l have illustrated and described with particularity only a single preferred form of my invention, I do not desire to be limited to the exact structural details thus illustrated and described, but intend to oever all :forms and arrangements which come within the terms employed in the definitions of my invention constituting the appended claims.

I claim:

1. A valve of the character described,

comprising a shell in the form of an annular trough having partitions across the same, the shell being arched in radial section, a

refractory lining within the shell, and suplcomprising an inverted trough in the form of an annulus having a plurality of radial partitions dividing it into a plurality of compartments, each of said compartments being arched in radial section and being curved at the ends from top to bottom in longitudinal section.

fl. A valve of the character described, comprising a trough in the form of an annulus composed of a plurality of sections having their ends abutting against each other, the end Walls of the sections receding gradually from each other along curved lines from the free edges thereof.

5. A valve of the character described, comprising a trough in the form of an annul'us composed of a plurality of sections having their ends abutting against each other, the end walls of the sections receding gradually from each other along curved lines from the free edges thereof and the main portion of the trough being arched in radial section.

6. A valve of the character described, comprising a plurality of curved trough-like members having their ends abutting and forming an annulus, said members being gradually flattened as the ends are approached so as gradually to merge the portions forming the bottoms of the troughs into the ends.

7. A valve o-f the character described, comprising a plurality of curved trough-like members having corresponding ends engaging each other` and forming an annulus consisting of an endless trough divided into two compartments, each compartment being approximately semi-circular in radial section and being curved from top to bottom at the ends in longitudinal section.

8. A valve of the character described, comprising a shell in the form of a plurality lli) of trough-like-members having corresponding ends engaging each other and forming an endless trough divided into tivo compartments, said trough being arched inA radial section and theadjacent ends of the two compartments receding gradually from each other on curved lines from the free `edges thereof, a refractory lining fitting Within the shell, and supporting flanges for the liningvproj'ecting inwardly from the Walls of said compartment at some distance from the free edges thereof. Y e

9. A valve of the character described, comprisinga shell in the form of an annular trough having partitions across the saine, the shellbeing divided into sections along radial lines, Aa Ysectional refractory lining Within the shell, and supporting flanges for the lining projecting Yinwardly from the sides of the trough at some distance from the edges thereof.

k10. In combination, a stationary part containing three or more segmental ports arranged in a circle about a common center, a Water pan surrounding said ports, a valve in the` form of an annulus projecting at its lower edges into said Water pan, and operating means for said valve including a member extending through the opening in the center of theV valve to said stationary part.

1l. In combination, a stationary part conn taininga plurality of ports arranged in a circle about a common center, a water pan surrounding said ports, a valve in the form ofV an annulus projecting at its lower edges into said Water pan, and operating means for said valve including a member arranged Within the opening in the center of the valve.

In testimony whereof, I sign this specilication.

JOHAN A. VOHLBERG.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.