US1910800A - Smoke box front - Google Patents

Description

w. F. KIESEL, JR

SMOKE BOX FRONT Filed July 6, 1951 FIG- I.

May 23, 1933.

3 Sheets-Sheet 1 WITNESSES INVENTOR- mllzamfifieseflk TTORNEYS.

' w. F. KIESEL, JR 1,910,800

SMOKE BOX FRONT May 23, 1933.

Filed July 6, 1951 5 Sheets-Sheet 2 FIG". I.

' IN VEN TOR:

WITNESSES mllmjmzesewf:

May 23, 1933. w F 5 JR 1,910,800

SMOKE BOX FRONT Filed July 6, 1931 5 Sheets-Sheet '3 WITNESSES IN VEN TOR:

mllzamjfifleseld Patented May 23, 1933 1 UNITED Saree WILLIAM F. KIESEL, JR., HOLLI'DA'YSBURG, PENNSYLVANIA;

SMOKE Box rnonr Application filed July 6, 1931. Serial Nab 18,963.

This invention relates to smoke box fronts for locomotives or the like, and more particularly to thecombinationof a smoke box front of novel design with a shrouded stack.

The primary object of the invention is to provide a locomotive smoke box and stack arrangement of a design such that, when the locomotive is moving, air will be entrained at the front of thelocomotive and deflected upvvardly around the rear of the stack to lift the smoke and gases issuing therefrom well above the locomotive "cab, thus clearing the atmosphere at the front of thelocomotive and giving the engine crew a clear view ahead.

While I am aware that it has heretofore been proposed to provide a locomotive stack with a hood partly surrounding it for the purpose-of deflecting a current of air upwardly at the rear of the stack to carry smoke and gases above the line of vision of the engine crew,.the present invention is characterized by anumber of improvements over such schemes among which improvements the following may be mentioned.

Inthe present invention the smoke box front is inclined upwardlyand rearwardly and so formed and related to the stack as to entrain and concentrate a relatively large volume of air around the rear of the stack. The stackand smoke box front comprise an integral casting so that, when the smoke box front is removed, the stack andthe shroud associated with it are removed by the same operation, which immediately renders the in ternal piping and other parts within the smoke box readily accessible. Furthermore, the smoke box front is preferably alsoprovided with a forwardly projecting portion normally covered bya door through which.

access maybe had to the smoke box without removal. of the combined smoke box front and stack.

Other objects and advantages characteristic of this invention will become more fully apparentfrom the description of one embodiment or example thereof which follows hereinafter, having reference to the accompanying drawings, whereof Fig. I represents a front elevation of the forepart of a locomotive with certain parts box bottomplate 16 is joined to the boiler shown in section and others removed for clearness of illustration.

Fig. 11 represents a top plan view of the same; and,

III represents a longitudinal cross section of the same, taken as indicated by the lines III-III of Fig. II.

In the drawings the front end of the boiler barrel of a locomotive is designated at l, and portions of tubes through which the products of combustion pass to the smoke box are designated at 2. At the top of the tube sheet S there is also shown the usual dry piped and Tconnection 5, but the details of the super-heater, superheater header, and other parts normally found within the smoke box have been omitted for the sake of clearness of illustration, inasmuch as the present invention is not concerned with the interior fittings of the smoke box. In advance of the boiler barrel 1 and at the top of the smoke box,there is a front end casting 6 with a feed water heater 7 thereon.

The cylinder and saddle construction need not be here described in detail as the pre- 7 ferred arrangement thereof is that which is disclosed in U. S. Letters Patent No. 1,785,485, grantedto me December 16, 1930. The main piston-type valve chambers are shown at 8 and the auxiliary or cut-oifvalve chambers are shown at 9. Exhaust steam passages 10 lead upwardly aroundthe auxiliary valve chambers 9 to flanges 11 where these passages connect with pipes 12 which conduct the exhaust steam to the feed Water heater. Additional transverse passages 13 conduct exhaust steam from the ends of the valve chambers 8 to a vertical conduit 14.- and from thence to the exhaust stand 15 directly thereabove. At the bottom of the smoke box there is a plate 16 having an annular depres sion 17 concentric with and surrounding the exhaust stand 15. This bottom plate 16 is preferably formed integrally with the valve chambers 8 and 9 and the exhaust steamconduits 10,13 and 14, and the complete casting comprises a saddle for the forward end of the boiler barrel 1. At its rear end the smoke barrel 1 as shown at 18. 1 0

The details of the means provided for imparting the required velocity to the exhaust gases passing from the smoke box to the atmosphere are shown and described in U. S. Letters Patent No. 1,749,487, granted to me March 4, 1930, and, therefore, need not be here referred to other than briefly. The central raised portion 19 of the smoke box bottom plate 16 forms, together with the circular base 20 of the exhaust stand 15,. a seat for acylindrical netting 21. The top of the netting 21 is disposed within a blower ring casting 22 of a well-known construction.

The top flange 23 of the ring casting 22" abuts against a corresponding flange 24 formed at the base of the inner portion 25 of the stack 26. Connected to the. depending flared skirt 27 of the ring casting 22, there is a petticoat 28 preferably constructed in the manner described in my Patent No. 1,7 49,487 referred to above. The petticoat 28 may be made in three sections, each extending through an. arc of 120, With two sections bolted to the blower ring 22 and with the third. or front section hinged to the bottom of the other two and latched to the blower ring 22 by a dog 29, so that it may be swung forwardito permit access to the netting 21' for the purpose of inspection. The dog 29 is pivoted to a bracket 30 and has a lug 31 which is adapted to be clamped against the inside of the ring castingv 22. To hold thehandle portion 32 of the dog 29 in clamped position, abolt 83-with a cotter pin 34 at the end thereofmay conveniently be employed. When the locomotive is not inmotion and no steam is exhausting from the cylinders, by opening a valve inthecab, live steammay be admi tedto the blower ring 22 and caused to issue from. apertures therein in a jet, as indicated in Fig. III, to induce a draft inthe stack 26 andthus to lift the smoke.

From the description thus far it will be apparent that flue gases from the tubes 2 pass through the smoke box to the bottom thereof at the space between the annular depression 17 of the smoke box bottom plate 16 and. the bottom of. the petticoat 28. From thence the flue gases pass upward through the cylindrical. netting 21, where large cinders are broken up into particles suitable for passage-through the netting. A draft inducing, jet of steam is projected upward from a .suitable exhaust nozzle attached to the exhaust stand 15 at 35, and causes the flue gases to be entrained therein'and to be ejected upwards through the stack 26 with considerable velocity.

The above described smoke box construction, the arrangement of the exhaust steam conduits, and the meansprovided for inducinga draft in the flue gases within the stack .26 represent merely an example of the interior construction of a locomotive frontend to which my invention may be applied; and

it is to be understood that the invention is not limited in its application to such a construction as that described and illustrated herein, but may be applied to many different types of locomotve front ends.

To the portion 36 of the saddle and to the front end casting 6, cylindrical plates 37, defining the side walls of the smoke box, are riveted. As shown in Fig. I, there is a ring 38 of substantially square cross section fitting within the front end of the smoke box and slanting upwardly and rearwardly, the smoke box ring 38 being attached to the margins near the front edges of the bottom plate 16, the cylindrical plates 37, and the front end casting 6. The ring38 serves as a support upon which the smoke box front, comprehensively designated at 39, is mounted.

I The smoke box front 39 includes a flat slanting wall 40' which is of substantially circular outlineand which is bolted at its peripheral margin 41 to the smokebox ring 38. The exterior portion 42 of the stack 26 projects upwardly at the outside of the wall 40 to apoint somewhat above the feed water heater 7 and the interior portion 25 of the stack projects downwardly at the inside of the wall 40 to the ring casting 22. The entire stack 26 is formed. as an integral part of the smoke box front. At the front of the stack there is an opening 43. Adjacent to this opening the wall of thestack is formed to take the shape of anozzle 44 having its axis inclined to the vertical axis of the stack 26. At the sides of the nozzle 44 there are brackets 45 which may serve as supports for a headlight and generator- The steam exhaust from the head'- light generating apparatus may be connected to thenozzle 44 to inject'steam from-the exhaustinto the stack 26 Formed integrally with the flat slanting wall 40 at the top portion thereof there is a; shroud 46, the top edge of which, as shown in Fig. ILis circular and surrounds the maj or portion of the stack. At the front of the stack 26 the shroud 46 merges into forward- 1y projecting wings 47 which extend upward from the bottom of the slanting. wall 40of the smoke box, and-converge towards the top of. the stack. The wings 47 project to a con .siderable distance in advance of the wall 40 jecting; portion 48 which serves as amanhole through which access may be had to the interior of the smoke box without removal of the front of the cylindrical portion 48, these lugs serving as hinge supports for the smoke box door which is not shown in the drawings but may be assumed to be of a shape corresponding to the flange 49.

box front comprises in an integral piece the slanting wall d0, the stack 26, the shroud 46, the forwardly projecting wings 47, and the cylindrical portion 48 Accordingly, all of these parts are adapted to be removed in a single operation which" involves merely the removal of the nuts on the bolts by which the slanting wall is secured to the ring 38 at the front end of the locomotive. When the smoke box front has been removed, the interior piping is at once accessible. Furthermore, it is possible toenter the smoke box without removal of the smoke box front through the manhole defined by the cylindrical portion 48.

When a locomotive provided with a front end and smoke box front constructed accord ing to the practice of this invention is standing idle, the draft induced in the stack by steam from the blower ring 22 is sufficient to lift the smoke and flue gases well above the top of the stack; and there is no interference with the vision of the engine crew. When the locomotive is moving the air impinges on the slanting wall 4L0 of the smoke box front, and is deflected upwardly and rearwardly in the trough formed between the wings 47 and the slanting wall 40. Accordingly, the stream of air is directed into the annular space between the shroud 4.6 and the stack 26 and from thence is deflected vertically upwards in a column surrounding the flue gas issuing from the stack. This raises or lifts the smoke and gases from the stack well above the top of the locomotive so that the View of the engine crew is not interfered with.

While I have described my invention with reference to one example or embodiment thereof, it, will be apparent that various changes maybe made in the form of the structure herein disclosed without departing from the spirit of my invention as defined in the claims hereto annexed, and that some of the characteristic features of my novel smoke box front be used to advantage without a corresponding use of other features.

Having thus described my invention, I claim:

1. A removable smoke box front for a locomotive or the like comprising in an integral piece, a slanting wall, a stack, and air-deflect ing means for producing an upward current of air at said stack.

2. A removable smoke box front for a locoproje'cting wings for producing current ofair at said stacks i It will be particularly noted that the smoke motive or the like comprising in an integral piece, a slanting wallpand a stack having a portion projecting upwardlyat the outside of said wall, and a portionprojecting downwardly at the inside of said wall.

3.- A removable smoke box front for a locomotive or dislike comprising in an integral piece, a slant-ing Wall, a stack, and forwardly an upward 4. A smokebox front for a locomotive or the like CO-ITlPllSlIlg. in an untegral piece, a

slanting wall, a stack, and a shroud surrounding the rear of said stack but open at the front of the stack and merging into forwardly projecting wings forproducing an upward current of air at said stack.

5. A smok box frontfor a locomotive or the like comprising in an integral piece, a flat slanting wall, a stack having a portion there-" of projecting upwardly at the outside of said wall and a portion thereof projecting downwardly at the inside of said wall, and a shroud surrounding the rear of said stack but open at the front of the stack and merging into for- I wardly projecting wings for producing an upward current of air at said stack.

6. In combination with a boiler barrel of a locomotive or the like, a removable smoke box front comprising an upwardly and rearwardly slanting wall, a stack thereon, and means partly surrounding said stack and extending forwardly from said slanting wall for producing an upward current of air at said stack.

7. In combination with a boiler barrel of a locomotive or the like, a removable smoke box front comprising an upwardly and rearwardly slanting wall a stack thereon, a shroud surrounding the rear of said stack, and forwardly projecting wings on said slanting wall.

8. In combination with a boiler barrel of a locomotive or the like, a smoke box front comprising an upwardly and rearwardly slanting wall, a stack thereon, and a shroud surrounding the rear of said stack but open at the front thereof, and forwardly projecting wings on said slanting wall, said wings converging towards said shroud and merging therewith.

9. In combination with a boiler barrel of a locomotive or the like, a smoke box front comprising an upwardly and rearwardly slanting wall, astack passing through said wall and formed integrally therewith, a shroud surrounding the rear of said stack, and forwardly projecting wings on said slanting wall converging towards said shroud and merging therewith, said wings extending upward to the top of the stack.

10. I11 combination with a boiler barrel of a locomotive or the like, a removable smoke box front comprising an upwardly and rearwardly slanting wall, a stack thereon, and means partly surrounding said stack and ex tending forwardly from said slanting Wall for producing an upward current of air at said stack, said smoke box front having a covered opening beneath said stack permitting partial access to the smoke box.

11. A removable smoke box front for a 'locomotive or the like comprising in an integral piece, a slanting Wall, a stack, air-deflecting, means for producing an upward current of air at said stack, and a cylindrical projection extending forward from said Wall beneath saidestack, said projection defining a manhole permitting partial access to the locomotive smoke box and boiler front.

In testimony whereof,- I have hereunto signed myname at Altoona, Pennsylvania, this 25th day of June 1931. I

WILLIAM F. KIESEL, JR.

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