US2366511A - Smokestack for movable power plants - Google Patents

Description

Jan# 2, 1945 l t v. G. FRlsK 2,366,511

slvloxssmcx` Fon MovABLE POWER PLANTS v Filed Jung 12, 1943 Figi.

22 VladivvwhF` 6. Frisk,

His Attrney.

Patented Jan. 2, 1945 sMoKEs'rAcK Fon MovALE POWER` PLANTS Vladimir G. Frisk, Schenectady, N. Y., assignor to General Electric Company, a corporation of New York Application JunelZ, 1943, Serial No. 490,630

2 Claims.

The present invention relates to smokestacks for movable power plants, especially ofthe kind which are to be moved on railroad tracks. Bridges and other overhead obstacles ordinarily necessitate makingthe smokestack of several `parts which can be readily assembled and dismantled.

The object of my invention is to provide an improved smokestack especially adapted for movable power plants.

For a consideration ofwhat I believe to be novel and my invention, attention is directed to the following description and the claims appended thereto `in connection with the accompanying drawing.

In the drawing Fig. 1 illustrates a movable power plant embodying my invention;` Fig. 2 shows a sectional view of the smokestack of Fig. 1 to an enlargedscale; Fig. 3 shows such smokestack in operating position; and Figs. 4 and 5 are detail views of certain parts of Fig. 3.

The movable power plant arrangement shown in Fig. 1 comprises a plurality of trucks I0 which may be moved along a railroad track. These trucks are connected by and act as a support for a frame II which forms a foundation for power plant apparatus including a boiler with a combustion and convection chamber I2 and a smokestack arrangement I3 for conducting gases discharged from the combustion and convection chambers to atmosphere and aiding to induce sutlicient draft in the combustion chamber.

The smokestack arrangement comprises a plurality of substantially cylindrical members or smokestack cylinders. In the present instance I have shown three such cylinders I4, I5 and I6.

` These cylinders are of successively smaller diameters so that they may be telescoped into each other, as shown in Fig. 2. The lower cylinder I4 is rigidly secured to the frame orfoundation of the power plant and enclosed by a heat-insulating wall Il. The lower end of the cylinder I4 forms an opening I8 for receiving gases discharged from the combustion and convection chambers I2 of the boiler or elastic fluid gener- I ator.- The intermediate cylinder I5 is supported on and secured to the lower cylinder I4 by means of a special coupling and centering device I9 and the upper cylinder I6 is supported and centered on the upper end of the intermediate cylinder I5 by a similar coupling and centering device 20.

`Each coupling and centering device I9and 20 comprises a flat ring 2l and two cylinders 22 and 23 `of different diameters secured tothe lower face and upper face respectively of the ilat ring 2I. In order to assure arm connection, the

inner diameters of the cylinders 22 and 23 are slightly smaller than the corresponding outer diameters of the lower cylinder I4 and the intermediate cylinder I5 respectively. Each of the coupling devices I9, is made of two halves or segments 24 and 25 provided with flanges in the form of brackets 26 at the ends of each half for securing the halves together and thereby bringing them into intimate contact with the adjacent portions of the smokestack cylinders to be connected. The coupling device has a plurality of I circumferentially spaced radial pins 2l for projecting into openings 28 in the adjacent end portions of the smokestack cylinders. The structure as a whole is fabricated.` The dilierent parts of each coupling device as fused together by welds. When assembled the flat ring 2 I rests on the upper end of the lower-smokestack cylinder I4 and the lower end of the intermediate cylinder I5 rests on the flat ring 2 I. The coupling cylinders 22,23

I form` gripping contact with the corresponding ends of the smokestack cylinders I4 and I5 respectively.

During assembly the intermediate cylinder I5 is heldin proper position with its lower end near and facing the upper end of the lower cylinder I4.` Thereupon the two halves 24 and 25 of the coupling device I9 are applied from opposite sides and are radially moved toward each other until the pins 2l project into the openings 28 of the smokestack cylinders. Finally the two halves of the coupling device are drawn against each other by tightening bolts 29 projecting through the anges or brackets 2B at adjacent endsof the two halves 24, 25.

vThe openings 28 in the upper end of the intermediate cylnder I5 also facilitate the application of hooks for lifting such cylinder. *The upper cylinder is provided with cross bars 30 in its up- The `coudiameter corresponding to the smaller diameter of the upper smokestack cylinder I6. When disassembled, that is,wh1e the power plant is moved or to be moved on tracks, the several cylinders are telescoped into each other, as shown in Fig. `2, and their'upper `ends are enclosed by an enclosing cover 3I with a skirt 32 surrounding the upper ends of the cylinder. The cover 3| is securely fastened to a plurality of circumferentially spaced brackets 33 on the upper cylinder I6 by means of bolts 34.

Having described the method of operation of or inner my invention, together with the apparatus which I now consider to represent the best embodiment thereof, I desire to have it understood that the apparatus shown is only illustrative and that the invention may be carried out by other means.

What I claim as new and desire to secure by Letters Patent of the United States is:

1. A coupling l*and centering 'device for cylinders which may be telescoped into'each other, "said device comprising a at ring, cylindrical members of different inner diameters secured to opfposite sides of the ring, and radial pins secured to said'members.

2. A coupling and centering device for two cylinders of different diameter comprising a at ring and two cylindrical members of different diameter concentrically secured to opposite sides of VLADIMIR G. FRISK.

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