US1847804A - Damper valve mechanism - Google Patents

Description

March 1, 1932. J. w. ALL EN DAMPER VALVE MECHANISM Filed Aug. 50. 1950 2 Sheets-Sheet jywenio ./055P/-/ WLLA CE HALE/v,

DAMPER VALVE MECHANISM Filed Aug. 30, 1930 2 SheetsSheet 2 I I I H J) l /4 .-l g 6 56 7 L16 1 f [men/607': JOSEPH WHALHCE x4LL E/v,

Patented Mar. 1, 1932 Parser! OFFICE JOSEPH wALnAcE ALLEN, or cLAmTomIrENNsYLvANm nmnn VALVE MECHANISM 7 Application filed August 30, 1930. Serial No. 478,968.

This invention relates to valves and, while not limited thereto, relates more particularly to liquid sealed damper valves for use with collecting mains of by-product coke ovens,

5 and has for one of its objects the provision of a valve structure of this class including a two-part operating shaft having a detachable connection to' permit dissenibling the valve by moving the valve parts in a straight-away direction at right angles to the longitudinal axis of the shaft. Inthe drawings: o

Figure 1 is a side elevation, partly in section showing a valve embodying this inve'n l ti'on in positionon a collecting main, of a by-product coke oven. v

Figure 2 is a sectional view taken on the line II-II' of Figure, 1.

Referring more particularly to the draw-- ings, the numeral 2 designates a standard flat top collecting main such as is in common use with many by-product coke oven installations, and the numeral 3' designates the ascension pipe which communicates with the coke oven and conducts the products of'distillation upwardly and through, the elbow 4 and valve structure A to the collecting main .2.

The valve structure A comprises a collarlike base casting 5 which is riveted or otherwise secured to the top of the collecting main 2 around a suitable opening through which the distillates pass to said main. A valve seat casting 6 is positioned on top of the base casting 5 and is secured thereto by bolts 7. The valve seat casting 6 has a depending sealing flange 8 which projects into the confines of the base casting 5. V

A spray box 9 is mounted on top of the valve seat casting 6 and is secured thereto by bolts 10. The spray box 9 is so shaped that its other end will engage the discharge end of the elbow 4 and is secured theretoby bolts 12.

A suitable downwardly directed spray nozzle 13 is mounted in the spray box 9 and is connected by a pipe 1% with a supply main 15.

The valve seat casting 6 is provided with a pair of spaced depending apertured ears 759 or lugs 16 within the'confines of the collar-like base 5. Suitable bushings orbearings 17 are mounted in the apertures of the lugs 16and a shaft section 18 is journaled in the bushings 17. The shaft 18 has a squared portion 19 intermediate its ends on which a liquid retaining dish member 20 isinounted so as torotate or move with said shaft.

The shaft 18 is of less length than the diameter of said base casting 5 so that its endsterminate well within said casting and j H permit the removal of the valve seat casting and dish member 20 as a unit. In order to provide for operating the shaft section 18, a second shaft "section 21 is journaled in a stuflingbox opening 22in thecollar-likebase 5 inline with the shaft section 18.1 The opening 22 isprovided with glands 23 and 24 at opposite ends which serve as spaced bearings for the shaft 21, v i i The shaft 18 isprovided with a pair of spaced jaws 25' on itsend-adj'acent theinner end of the shaft 21. The inner end of the shaft 21 is provided with: a tongue 26 which is adapted to be engaged between thejaws 25 when the shafts 18 and 21 are inassembled position, thereby forming a detachable clutch connection or coupling between said shaft sections. v i

The shaft section 18 and dish member 20 are so assembled that when the shaft and dish member are permittedto swing free by gravity the jaws 25 will be in vertical position, thus permitting the free movement of the vertically disposed jaws relative to the tongue 26' when assembling or dissembling the valve. 1

The ascension pipe 3 is'provided with the usual bleeder valve 28 which is adapted to be opened when the valveA is closed or sealed and to be closed when the valve A is opened;

The valves 28 and A are adapted to be operated by a series of links and levers actuated by a cylinder or other source of power (not shown).

Thebl'eed'er valve 28 is carried by an arm 29 fixed on a shaftBO journaled in suitable bearings on the ascension pipe 3 and having an actuating bellcrank lever 31 secured thereto. One arm of the" bell-crank 31'is connected by a link 32 to a rocking lever 33 which in turn is. connected: to an actuating rod 34. The other arm of the bell-crank 31 member 20.

The damper valves A are in many instances so positioned relative to each other and to other mechanisms that it would be impossible to dissemble valves of this type if a' single 20 since said shafts could not be withdrawn or inserted due to the lack of space. Therefore the specific arrangement of the shafts 18 and 21 and other valve parts which permits free movement of the valve assembly vertically without longitudinal movement of the shafts is important.

YVhile I have shown and described one specific embodiment of my invention it will be understood that I do not wish to be limited thereto, since various changes in detail and design may be made to adapt my invention for use with various types of collecting mains and other cooperating equipment without departing from the scope of my invention, as defined in the appended claims.

I I claim: V I

1'. In a liquid sealed damper valve structure, a. relatively short shaft section journaled in saidstructure, a. liquid seal retaining dish secured on and movable with said shaft section, a second shaft section journaled in said structure in alinement with said first'shaft section, and a detachable connection between said shaft sections.

2. In a liquid'sealed damper valve structure, a collar-like base casting, a valve seat casting mountedon said base casting and having a depending liquid sealing flange projecting into the confines of said base casting, a pair of apertured lugs depending from said valve seat casting into the confines of said base casting, a. shaft journaled in said lugs and having its ends terminating-within the confines of said base casting, a liquid seal retaining dish carried by and movable with said shaft and adapted to be moved into and out of sealingposition with said sealing flange on said valve seat casting, said base casting being apertured in line with said shaft, a second shaft journaled in said aperture, a pair of spaced jaws formed on the inner end of said first named shaft, a tongue on the adjacent end of said second named shaft and engaged between the jaws on said first named shaft to form a detachable connection between said shafts. V v 3. In a liquid sealed damper valve structure, a collar-like base casting, a valve seat 0 casting mounted on said base casting and having adepending liquid sealing flange projecting into the confines of said: base casting, a pair ofapertured lugs depending from said valve seat casting into the confines of 5 said base casting,- a shaft journal-ed in, said shaft were used to mount the dish member lugs and having its ends terminating within the confines of said base casting, a liquid seal retaining dish carried by and movable with said shaft and adapted to be moved into and out of sealing position with said sealing flange on said valve seat casting, said base casting being apertured to form a stufling box, a second shaft extending through said aperture, glands mounted at each end of said aperture and packing between said glands,said glands forming spaced bearings for said shaft, a pair of jaws mounted on the one end of one of said shafts, and a tongue on the other of said shafts adapted to be engaged between the jaws of the other of said shafts to form a detachable connection between said shafts, and means for rotating said second named shaft.

4. In a liquid sealed valve structure, a collar-like base casting, a valve seat casting mounted on said base casting and having a depending liquid sealing flange projecting into the confines of said base casting, a pair of apertured lugs depending from said valve seat casting into the confines of said base casting, a shaft journaled in said lugs and having its ends terminating within the confines of said base casting, a liquid seal retaining dish carried by and movable with said shaft and adapted to be moved into and out of sealing position with said sealing flange on said valve seat casting, a second shaft journaled in bearings in said base casting in alinement with said first named shaft, and means forremovably connecting the adjacent ends of said shafts, said means being adapted to permit straight-away movement of said valve seat casting and said first named shaft and said disk relative to said second named shaft to dissemble said valve structure without movement of either of said shafts.

In testimony whereof,I have hereunto set my hand.

JOSEPH WALLACE ALLEN.

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