US1932008A - Locomotive structure - Google Patents

Description

Oct. 24, 1933. w. BEAN LOCOMOTIVE STRUCTURE Filed May 4, 1928 4 Sheets-Sheet l nw I Oct. 24, 1933. w. L. BEAN LOCOMOTIVE STRUCTURE Filed May 4, 1928 4 Sheets$heet 2 (97" O NEVD Oct 24, 1933. w. L. BEAN LOCOIOTIVE STRUCTURE Filed Ilay 4, 1928 4 Sheets-Sheet 3 ENTUR Oct. 24, 1933. w. BEAN LOCOMOTIVE STRUCTURE 4 Sheets-Sheet 4 Filed May 4. 1928 Patented Oct. 24, 1933 UNITED STATES PATENT OFFICE 1,932,008 LOCOMOTIVE STRUCTURE William L. Bean, West Haven, Conn. Application May 4, 1928. .Serial No. 275,113

11 Claims. '(01. 122-425) My invention relates to railway rolling stock and consists in a novel smoke box structure for use on steam locomotives. V

The main object of my invention is to simplify the construction of the smoke box and parts associated therewith, to reduce the expense thereof, and to'eliminate loose joints between assembled parts and the necessity of frequent inspection and repair of such parts.

Preferably, my invention involves the use of a one piece'casting forming the smoke boxwalls and including a chamber for receiving the-"superheater header and provided-with an integrally formed steam conduit on the interior of the smokebox adapted to lead from the superheater header to the exterior of the smokesbox and provided with another steam conduit leading from the exterior of the smoke box to the feed water heater body formed integrally with the smoke bOX. II I The objects mentioned are attained in the structure hereinafter describedand illustrated in the accompanying drawings, in which' Figure l is in part atop view and in parta horizontal section through my smoke box.

Figure 2 is a side elevation of'the same.

Figures 3 and 4 are transverse sections taken on lines 33 and 4- 4 of Figurel.

Figure -5 is'atransversesection and end view taken on line '5--5 of Figure 1.

Figure 6 is ahorizonta-l detail, section taken on line 66 of Figure 2. j

Figure 7, is ajvert'lcal detail section on line '7'7 of Figure 5. s

The body of the smoke box isformed of a Wall 1 having a generally cylindrical form but departing therefrom at various places to meet particular conditions. and the front end is provided with integral lugs 2 '40 forming hinge butts for a front end door (not shown) which will have a contour corresponding to the flange 3 indicated in Figure 5.

The rear portion of the smoke box is adapted to receive a superheater header which is indi- 4 cated generally by the reference letter S and in itself forms no part of my invention. Integral brackets 4 are formed on the inner wall of the smoke box for supporting the superheater header. Formed integrally with the smoke box wall is a longitudinally extending pipe or conduit 5 adapted to be connected at its rear end 6 to the outlet from the superheater header and, at its front end, extending downwardly and outwardly as indicated at '7 and merging with the side wall of the smoke box so that the latter forms a part The ends of the box are open the complete structure. lagging 23, is provided around the feed water of the wall of the steam conduit. At a lower point .the pipe forming portion of the side wall of the box is projected outwardly, as indicated at 8, and the inner portion of the steam pipe extends outwardly so that anextension of the pipe projects beyondithe body of the smoke box. This extending portion is flanged as shown at 9 .for attachment'to a suitable connection 10 to the steam chest. The wall of the box is provided with a depressed portion 11 adjacent to 'flange 9 to'permit ready access to all sides of the flange to facilitate attaching the same to the connection 10.

Alongside of the live steam conduit just described, I also provide an exhaust steam pipe 12 having a similar flanged end 13 and leading from the exterior of the'sm'oke box to the interior of the same. Between-the exhaust steam pipe 12 and'the 'endof the box, I providean integral feed water heater body 14 extending transversely :of the smoke box and having a cylindrical shape and provided with vertical plane ends,

' as best shown in Figure '5, the adjacent portion 20 for the feed water admitted tothe heater.' A

condensate pipe leading from the "heater is in-' dicatedat 29 in Figure 5.

Where the steam pipes are formed on the exterior of the body of the smoke box, the depressions in the wall of the latter permit the application of lagging 22 without the latter unduly projecting beyond the normal contour of the smoke box and this improves the appearance of Similar provision, for

heater body. a

The top of the smoke box is provided with suitable openings 24 to provide access to the superheater header, and these openings are surrounded by flanges 25 on which a detachable cover 26 may be mounted. The side wall of the smoke box adjacent the superheater receiving portion is provided with an opening for receiving the throttle airjoint apparatus indicated at 27, the handle stem 28 extending outwardly to mount the handle 29 so that it swings clear of the body of the box.

Another opening 30 in the top of the box is surrounded with a flange 31 and serves to mount a smoke stack K.

The bottom of the box has a flattened portion 32 for mounting the box on the saddle or other support and this portion of the box is provided with ribs 33 for interengaging with the saddle to hold the smoke box in position. This portion of the box is provided with an opening 34 and this opening receives the exhaust nozzle 35. It will be understood that while a portion of the exhaust steam is supplied to the feed water heater, part of the exhaust steam is discharged through the nozzle 35.

At 36, I indicate steps projecting outwardly from the side wall of the box and provided with suitable reenforcing flanges 37 and at 38 I indicate a bracket formed integrally with the wall of the box and adapted to mount an oil cup (not shown) for the cross head guides.

Obviously some of the details illustrated anddescribed may be eliminated from the structure and all of the structure may be varied without departing from the spirit of my invention, and I contemplate the exclusive use of all such modifications as comewithin the scope of my claims.

I claim:

l. A one piece casting comprising a locomotive smoke box shell and a cylindrical feed water heater pocket recessed in said shell and'with its axis extending transversely of the axis of said shell.

2. A one piece casting comprising a locomotive smoke box with a side wall of a cylindrical con tour and having a vertically extending depression forming an outer portion of a steam pipe wall.

3. A one piece casting comprising a locomotive smoke box with a s de wall of a cylindrical contour and having a vertically extendingdepression, and a steam pipe within said wall and in part formed by said depression, said steam pipe be ng integral with said side wall.

4. A one piece casting comprising a locomotive smoke-box with a cylindrical wall having opposite portions depressed andfiattened, and a cylindrical pocket for a feed water heater with its axis extending transversely of the smoke box axis and with plane vertical ends formed in part by the inner sides of said flattened portions and formed in part by extensions of said flattened portions projecting beyond the normal contour of said wall. r

5. As a new article of manufacture, a one piece casting comprising a locomotive smoke box including a portion adapted to receive a superheater header, said casting having a wall structure, a steam pipe extending along said wall and then through the same and leading from said portion to the exterior of the box', a cylindrical pocket for a feed water heater disposed substantially within the confines of said box and with its axis extending transversely of the axis of said box and another steam pipe formed integrally with said wall and extending through and then along said wall from the exterior of said box to said pocket.

6. A one-piece casting comprising a locomotive smoke box shell and a chamber for a feed water heater, said chamber having its axis disposed transversely of the axis of sa d smoke box and being located substantially within the regular contour of said shell.

7. A locomotive one-piece smoke box casting including a cylindrical outer wall, the top of said wall at the front beng flattened transversely and bifurcated to form a cylindrical feed water heater body.

8. A locomotive one-piece smoke box casting including a cylindrical outer wall having a bifurcation in the upper front portion thereof, the lower leg of said bifurcation curving inwardly through the smoke box and the upper leg thereof curving forwardly and downwardly and meeting said lower leg to form a fluid chamber for a feed water heater.

9. A locomotive smoke box casting shaped to conform with the contour of a locomotive boiler and having a portion near the top thereof forming a cylindrical fluid chamber for a feed water heater, said portion occupying a comparatively small part of the smoke box interior, and the top and front walls thereof merging with the top and front walls, respectively, of the smoke box.

10. A locomotive smoke box casting comprising a cylindrical wall having an elongated "recess therein,'and a steam pipe extending along and merging with the inner surface of said recess, sa d recess serving to receive lagging for insulating the merged part of said pipe from the atmosphere and the inner part of said pipe being exposed. to hot gases within the smoke box.

11. A locomotive smoke box casting comprising a cylindrical outer wall and a cylindrical pocket forming a feed water heater chamber inside said wall and in the upper front corner thereof, a portion of said wall forming'the top of said chamber and being oifset inwardly from the remain ng portions thereof to provide for lagging the outer surface of said chamber.

WILLIAM L. BEAN.

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