US1711466A - Locomotive stoker - Google Patents

Description

April 30, 1929. E. A. TURNER LOCOHOTIVE STOKER Fild April 2a, 1926 2 Sheets-Sheet 1 ZZZ/[N7257 ZZWC/ZQWTM/MW E. A. TURNER LOGOIIOTIVE s'rdxsa Filed A ril 28, 1926 Patented Apr. 30, 1.929.. V

UNITED STATES PATENT oFric.

EDWIN ARCHER TURNER, F PITTSBURGH, PENNSYLVANIA, ASSIGNOB, IBY MESNE ASSIGNMENTS, TO THE STANDARD STOKER COMPANY INC., 0]? NEW YORK, N. 'Y.,

A CORPORATION OF DELAWARE.

nocomo'rrvn STOKER.

- Application filed A ril as,

The invention relates to locomotive stokers of the scatterfeed type in which the fuel is conveyed from the tender to the locomotive and delivered through the backhead thereof above the level of the fire bed, and scattered thereover. V j

The objects of the present invention are to simplify and improve stokers of this type, generally and as to various of the details of construction.

Preferred embodiments of the invention are hereinafter described and are illustrated in the accompanying drawings, in which Fig. l is a detail vertical longitudinal section of the locomotiveand-its tender, and of the stoker;

Figs. 2 and 3 are ,p-lan sections on the lines 22 and 33 respectively of Fig. 1;

Fig; 4 is a detail vertical section on the line 4-4 of Fig. 1;

Fig. 5 is a detail section on the line 55 of Fig. 4; and

Fig. 6 is a detail vertical longitudinal section of the stoker mechanism and backhead of the boiler, showing a modified form of construction.

The backhead of the locomotive is represented at 10 and its grate at 11. Port-ions of the tender are shown at 12, and the coupling uniting the locomotive and tender at 13.

The stoker as illustrated in Figs. 1 to- 5 comprises a. transfer conduit 14 adapted to be fixedly secured to the tender below the floor 15 thereof, which is suitably apertured to permit the coal carried in the fuel bin to be discharged into the conduit. A crushing jaw 16 is shown as archin over the forward end of the conduit 14. Within this conduit there is located a suitable device as the helical screw '17 for advancing the fuel. A At the forward end of'theconduit 14is located" one: section of a hollow ball joint 18, the other section 19 thereof being carried by one partof. a conduit 20 whichconveys the box. The conduit 20 comprises the'section 21 which carries the ball joint section 19, and the fuellto the point of deliveryginto' the fired 192s. Serial No. 105,164.

A helical screw 27 housed within the conduit- 20 and connected to the screw 17 by a universal joint 28 advances the .fuel and forces it through the nozzle 24. k

A steam nipple 29 is located at the rear-' ward end of the distributor plate and is, as shown, cast integrally therewith, and is arranged to discharge one or more steam jets over the surface of the plate for the purpose of sweeping the fuel therefrom into the firebox and scattering it over the grate area, the plate being provided with suitable ribs as 30 for giving direction to the fuel.

The stem 31 of the steam nipple 29 projects downwardly into a bracket 32 secured to the outer face of the backhead 10 and to this stem there leads, from any suitable source, a steam pipe 33. o

An apertured lip 34 projects forwardly fromflthe lower wall of the fuel nozzle 24 and rests upon the bracket 32, the stem 31 extending through its aperture and constituting a pivot upon which the conduit 20 may turnas the tender sways laterally relatively to the locomotive. Any relative longitudinal movement of the tender-and locomotive causes .relative sliding movement of the sections 21, 22 of the conduit 20.

A draft ring or plate 35 encloses the bottom and sides of the nozzle 24 and is apertured below this nozzle as shown at 36 to permit the entry of a sufficient amount of air under the plate 26 to measurably protect it from the heat of the furnace. The upper wall of the nozzle 24 may be provided with a door 37 to afford access to the interior of the nozzle should any clogging occur.

The conduit 20 isinclined upwardly toward its forward end, passing through the floor or deck 38 of the 'locomotivecab, which floor may be provided witha trap door 39 to permit p access to the conduit. when repairs become I necessary.

in Fig; 6,. the 'forward section of the conduit 20i's connected. with a delivery nozzle 40 In the modified form of construction shown I "which isfixedly attached to the backhead 1:0, i by means of a ball joint 41, th'ereby providing for flexu're of the fuel conveying conduits what enlarged downwardly to tender and .a firebox named section being telesco without requiring movement of the fuel nozzle. In all other respects the details of the device may be the same as in the previously described form.

'The fuel delivery nozzle 24 or 40 is made of greater width and less vertical dimension than the diameterof the conduit with which it cooperates, and consequently occupies but a small portion of the firing opening of the backhead. Preferably this opening is some plication of a standard fire door.

I claim as my invention:

1. In combination, a locomotive having a provided with a firing opening, a transfer conduit fixed to the locomotive tender, a conduit comprising relatively sliding telescoping sections, the rearward section being universally jointed to the first named conduit and the forward section having a delivery nozzle cooperating with the firing opening of the locomotive fire box, a bracket fixed to the back head of the boiler and having pivotal connection with the nozzle.

2. In combination, a locomotive having a tender and a firebox provided with a backhead having a firing opening, a fuel conveyer conduit, comprising a section extending under .the tender, and a section pivotally attached to the backheadand delivering to the named opening, the two conduit sections being universally jointed together and the second named section being telescopically extensitender and a firebox provided with a backhead having a firing opening, a. fuel conveyor conduit comprising a section extending under the tender and a section pivotally attached to the backhead and delivering to the named opening, the two conduit sections being universally jointed together and the second a deliv plate projecting into such opening and receiving from the conduit, and a steam nozzle at the rear end of the plate and discharging thereover. I

5. In combination, a locomotive having a tender and a firebox provided with a firing opening, a fuel conveyer conduit extending from beneath said tender to said locomotive,

said conduit comprising freely slidable telepermit the appically extensible,

pically extensible,

scopic sections, the rear end of the conduit being attached to the tender and its forward end being flexibly attached to the locomotive, such conduit delivering to thefiring opening.

6. In combination, a locomotive having a tender and a firebox provided with a firing opening, a fuel convey-er conduit extending from beneath said tender to said locomotive,

said conduit comprising freely slidable telescopic sections, the forward end of one of said sections being flexibly connected to the locomotive and the rear end of the other of said sections being flexibly connected to the portion of the conduit extending beneath said tender,

such conduit delivering to the firing opening. 7 In combination, a locomotive provided with a firebox having a hand firing opening in the backwall thereof, a tender for said locomotive, a transfer conduit located beneath the floor of the tender, a riser conduit jointed to said transfer conduit and sloping upwardly and forwardly therefrom, to the lower portion of the hand firing opening of the locomotive, said conduits communicating in end to end relation, a distributor plate extending forward from the upper end of said riser conduit, and a helical screw Within each of said conduits for delivering the fuel therethrough, said screws moving the fuel along said conduits in an unbroken stream, and through said riser conduit in an upward and forward direction directly to said distributor plate without changing the course of flow of said fuel.

; 8; In combination, a locomotive provided with a firebox havinga hand-firing opening in the backwall thereof, a tender for said locomotive, a transfer conduit located beneath the floor of the tender a riser conduit jointed to said transfer conduit and sloping upwardly and forwardly therefrom to the lower portion of the hand firing opening of the locomotive, said conduits commumcatmg in end to end relation, a distributor late extending forward from theupper en of said riser conduit, and a helical screw within each of said conduits for delivering the fuel therethrough, said screws moving the fuelalong said conduits in an unbroken stream, and through said riser conduit in an upward and forward direction directly to said distributor plate without changing the course of the flow of said fuel the said u per .end of the riser conduit at the end of t e screw therein flaring laterally for causing the spreadin of said fuel in delivering the same .to said p te.

9. In combination, a locomotive having-"a tender and a firebox provided with a tivel wartl section being universall jointed tothe first namedconduit and the orward section having a delivery nozzle cooperatintgmwith the firing opening of the locomotive opening, a transfer conduitfixedto the 10- comotive tender, a conduit comprising relasliding telescoping sections, the rearing and bracket fixed to the back "head of the boiler and having an upstanding pivot engageable with the nozzle. i I

10. In combination, a' locomotive having a tender and a firebox provided with a firing opening, a transfer conduit fixed to the loco- 11. In combination, a locomotive provided with a firebox having a hand firing opening in the back wall thereof, a tender for sea locomotive, a transfer conduit'located beneath, the floor of the tender, a riser conduit jointed to said transfer conduit and sloping upwardly and forwardly therefrom to the lower portion of the hand firing opening of the locomotive, said conduits communicating 5 in end to end relation,'a distributor plate extending forward from the upper end of-said v riser conduit, and a helical screw within each of said conduits for delivering the fuel therethrough, said screws'so related that the fuel is moved along said\ conduits in an unbroken stream, and through said riser conduit in an upward and forward direction to said distributor plate without substantially changing the course of flow of the fuel, the screw within said riser conduit terminating adjacent said distributor plate and the delivery of fuel therefrom being unobstructed.

In testimony whereof I affix my signature.

' E. ARCHER TURNER.

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