US1718065A - Locomotive - Google Patents

Description

June 18, 1929. L. E. OSBORNE LOCOMOTIVE Filed March 19, 1.926 2 Sheets-Sheet live/r367: 'llfmuazw 0&607 7214 June 18, 1929. 1.. g. OSBORNE LOCOMOTIVE Filed March 19, 1926 Z-SheetS-Sheet mumfibr: .17 Ola/Mai Qiborm Patented 18, 1929.

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LONNIE nnwnnn OSBORNE, F PITTSBURGH, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE STANDARD STOKER COMPANY INC., OF NEW YORK, N. Y.,

A. CORPGRATIGN' OF DELAWARE.

Loooino'rxvn.

Application filed March 19, 1926. Serial No. 95,9 18.

The invention relates to the fire-boxes of locomotives, and to the means for'delivenng fuel thereto; and it consists in providing the back-head of the fire-bog with an inwardly opening alcove into which fuel is delivered and from which it is scattered over the grate, thereby reducing or eliminating encroachment on the grate area. I

Preferred embodiments of the invention are hereinafter described, and are illustrated in the accompanying drawings, in which Fig. 1 is a detail longitudinal vertical section of a fire-box and the fuel feeding device associated therewith;

Fig. 2 is a detail sectional view on the line 2-2 of Fig. 1;

Fig. 3 is a detail longitudinal vertical section of the fire-box and fuel delivery device, showing a modified form of construction;

of Fig. 3;

Figs. 5 and 6 are, respectively, detail vertical and plan sections of the fire-box, showing a modified form of construction.

in the use of mechanical stokers in connection with locomotives it has heretofore been the practice to deliver the fuel from a nozzle or plate located within the fire-box, and hence subjected to the heat developed therein. This heat is so intense that the fuel delivering ele ment is quickly destroyed and must be re placed, usually necessitating the drawing of the fire, putting the locomotive out of service for many hours,

The construction herein disclosed provides for the-housing of the delivery element of the fuel feeding device within an alcove, and therefore sorhewhat removd from the zone of intense heat,'and facilitates-its further pro- 40 tection by the introduction of air from without. The construction also makes it practicable to remove the delivery element for re placement without entering the fire-box, and:

consequently without requlring the drawing of the fire.

The back-head of a locomotive fire-box is representedat 10, and in the construction shown in Figs. 1 and 2 it is provided in its lower portion with an outwardly bulging 5o portion 11, forming an inwardly openingalcove 12. A fuel conveyin conduit 13, located below the deck 14 o the locomotive cab, extends under the lower margin of Fig. 4 is a detail section on the lined--4- the bulged portion of the back-head, its inner or delivery end 15 being upturned and being housed within the alcove. This upstanding portion of the conduit may be readily removable from the section of which it forms a continuation.

A fuel-advancing element, here shown as a helical screw 16, is housed within the conduit and terminates at the elbow from which the upstanding section 15 rises. For the purabove the delivery end of the conduit and at its rearward side, and will deliver a steam blast in the form of one or more jets across the conduit end for the purpose of scattering the fuel, issuing from the conduit, over the grate 19. A steam ipe 20 leads to the nozzle 18 from any desired source of supply.

The alcove 12 need not be provided with a floor, and the relative sizes of'the conduit section 15 and the alcove may be such that suflicient air will be admitted to cool the conduit section, the volume, however, not bein sufiicient to interfere with the draft through the grate.

In the construction shown in Figs. 3 and 4, the back-head 10 is apertured in its lower portion, as shown at 21, and this aperture is covered by a casing 22 removably secured, as by means of bolts, to the back-head and being of sufiicient size to form, with the side margins of the aperture 21, an, alcovewhich may be'of the same size as the alcove 12. This casing is preferably rovided with an openable section 23, suitab 31' secured, as by a hinge, as shown, and which permits ready access to the alcove for the purpose of observation or rectification of any irregularity of action in the fuel delivery. In all other respects the device is or may be of the same charactor as that shown in Figs. 1 and 2.

For the purpose of repair or replacement the conduit may be withdrawn through the bottom of the alcove, or when the form of construction shown in Figs. 3 and 4 is followed, the casing 22 may be detached and the upstanding section only of the conduit removed. These riprairs or replacements may be made while a e is maintained on the grates, and,

in a comparatively short time, the necessity for shopping the locomotive for such repairs usually being avoided.

The width of the offset portion of the back-head may be varied, extending it, if desired, entirely across to the side walls, as shown in Figs. 5 and 6. When-the width is substantially greater than the diameter of the conduit end 15, it is desirable to blank off the grate in the rear corners of the fire-box by the introduction of dead plates 24, 25.

By increasing the width of the offset portion the delivery of fuel, by means of steam jets, upon the back corners of the grate is facilitated.

The details of the structure may be varied without departing from the scope of the invention.

I claim as my invention 1. In combination, a fire-box having a hollow backhead, such backhead being offset outwardly to form an alcove, and a fuel conveying conduit delivering within the alcove.

2. In combination, a fire-box having a hollow backhead, such backhead being offset outwardly to form an alcove, a fuel'carrying conduit delivering within the alcove, and a steam nozzle for directing a distributing blast through the alcove into the lire-box.

3. In combination, a fire-box having a hollow backhead, such backhead being offset outwardly to form-an alcove, and a fuel conveying conduit delivering upwardly within the alcove.

4. In combination, a fire-box having a I "ing fuel upon said grates.

with an inwardly open alcove adjacent its lower margin, a fuel conveying conduit delivering within the alcove, and a steam nozzle for directing a distributing blast through the alcove. 4

7. In combination, a fire-box having a hollow backhead, such back-head being offset outwardly, and a fuel conveying conduit delivering, within said offset portion of the back-head.

8. In combination, a locomotive fire-box having a hollow backhead, such backhead being offset outwardly, grates Within said fire-box, a stoker including a fuel conveying conduit delivering within the offset portion of the back-head, and a steam nozzle at the end of said conveying conduit for distribut- 9. In combination, a locomotive having a firebox provided with a backhead and a grate extending forwardly from the backhead, a

fuel transfer conduit entering the firebox outside of the rear margin of the grate through an opening in the backhead and delivering upwardly, a section of the backhead being offset outwardly to inclose the delivery end of the conduit, and means for scattering fuel from the conduit over the fire bed.

10. In combination a fire-box havinga hollow backhead, such backhead being offset to form an alcove open to the firebox chamber, and a fuel conveyin conduit delivering upwardly within the a cove. I

11. In combination, a firebox having a hollow backhead, such backhead being oifset to form an alcove open to the firebox eham-' her, and afuel conveying conduit delivering to the firebox through the alcove.

, 12. The combination of a fire box including a grate, and a back head upstanding from the rear ofthe grate and provided with an alcove in the lower marginalportion thereof, and a mechanical stoker including means for delivering fuel to the alcove and means for scattering such fuel on the grate.

In testimony whereof I afiix my signature.

L. EDWARD OSBORNE.

CERTIFICATE OF CORRECTION.

Patent N0. 1,718,065. Granted time 18, 1929, to

YLONNIE EDWARD OSBORNE.

It is hereby certified that error appears in the printed specification of the above numbered patent requiringcorrection as follows: Page 2, strike out lines 66 and-75, comprising claim-9; same page, lines 76, 81 and 86, for claim numbers "10, 11 and 12" read "9, l0 and 11''; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office. I

Signed and sealed this 30th day of July, A. D. 1929.

M. J. Moore, (Seal) Acting Commissioner of Patents.

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