US2219083A - Locomotive stoker - Google Patents

Description

l2 Sheets-Sheetl 1 Tr mu #my m C f M TTORNEYS Oct. 22, 1940. C. J, SURDY LocoMoTIvE sToKER Filed March 1e, 193s C. J. lSURDY LocoMoTIvE sToKER 2 S'heets-Sheet 2 Filed March 16, 1938 INVENTOR ray ATTORNEYS w J 5 Pv /rY Patented Oct. 22, 1940 UNITED STATES PATENT oFFicE LOCOMOTIVE STOKER poration of Delaware Application March 16,

8 Claims.

'This invention relates to locomotive stokers of the type employing several flexibly connected conveyors leading from the fuel supply on the tender to the locomotive reboX.

It is an object of this invention to improve such locomotive stokers whereby assembly or disassembly of the conveyors may be conveniently carried out.

Specifically, it is an object of this invention to improve that portion of the stoker which is carried on the locomotive whereby assembly or disassembly of a conveyor may be conveniently carried out from a position in the locomotive cab.

Other and further objects of the invention reside in feature of construction and in their combination with one another as illustrated in the drawings, in which Fig. 1 is a vertical medial section through the rearward portion of the locomotive showing the invention in similar section;

Fig. 2 is a sectional View taken on the line- 2 2 of Fig. l;

Fig. 3 is a view similar to Fig. 1 illustrating a modification; and

Fig. 4 is a sectional view taken on the line 4-4 of Fig. 1 or 3.

Referring now to Figs. 1, 2 and 4, L represents a locomotive which has a boiler I supported above the frame Il by means which includes a plate element I2. The boiler I0 consists of a fireboX I3 closed on its rear by a backwall I4 which is provided with a firing opening I5 above the grates I 6. Rearward of the backwall I4 is a cab I1 having a deck I8 disposed below the level of the firing opening I5.

Leading forwardly from the tender (not shown) is a conduit I9 of the stoker S, said conduit comprising a pair of telescoped conduit sections 20, 2| housing a conveyor screw 22 therein. The o forward conduit section 2| is provided on its forward end with a spherical member 23, the upper portion 24 of which is hinged at 25 to the main part of the conduit section 2|. The spherical member 23 is received in a spherical seat 26 formed in the lower end of an inclined conduit section 21 which comprises one part of a fuel elevating conveyor C. As shown in Fig. 2, the rearward end of the conduit section 21 is U-shaped in transverse cross-section in order to permit upward and rearward swinging move-- ment of said upper portion 24 upon removal of the clamp 28. For this purpose, the portion 29 of cab deck I8 immediately above the clamp 28 is hinged as at 30.

1938, Serial No. 196,113

of the conduit section 21 a pintle 3| extends outward and fits into an upwardly opening recess 32 formed in each side wall 33 of a bracket 34. The bracket 34 is secured to the locomotive L by bolts 35 which extend into the rebox backwall 5 I4. At its forward end the conduit section 21 is preferably provided with a spherical member 36 which ts into a seat 31 of the discharge conduit section 38, the latter forming a part of the fuel elevating conveyor C. The rearward end of the l0 conduit section 38 is also U-shaped in transverse cross section (Fig. 4) and a detachable clamp 39 is used to hold the parts in operative relation. Fuel is conveyed through the conveyor C by means which includes a screw 49 disposed with- 15' in the conduit section 21. A link 4| universally connects the screws 22 and 4|).k The discharge conduit section 38 is secured to the backwall I4 by means of bolts which pass through a strap 42 and v,flanges such as 43 eX- 20 tending laterally from the discharge mouth 44 of the conduit section 38. Above the conduit section 38 is a casing 45 which embraces that portion of the firing opening I5 immediately above that portion of such opening withwhich said 25 discharge mouth 44 communicates. On the rearward side of the casing 45 is a redoor 46 which normally closes an aperture 41 opposite said firing opening I5.

Fuel is conveyed from the tender by the screw 30" which projects the fuel to all parts of the flre- 35r` bed. The distributor D comprises a jet member 48 which issues blasts of pressure fluid over a plate 49 from which the fuel is blown forwardly and laterally in aerial paths.

Whenever it is desirable to lrenew or repair the conveyor screw 4|), the Stoker S is rst operated in reverse so that fuel in the elevating conveyor C is moved rearwardly. Then the portion 29 of the cab-y deck |S is swung rearwardly and clamps 28 and 39 are removed whereupon it is possible 45 to 'swing upwardly and rearwardly the upper portion V24 of spherical member 23. With the upper portion 24 in such position, the link 4| of the universal joint between screws 22 and 40 is exposed and readily removed. In order to remove the screw 40 from a position in the cab I1, the conduit section 21 is swung upwardly about the axis of the pintles 3| to the position indicated by the dot and dash lines in Fig. 1. It is also possible to replace the screw 40 with the conduit 55' section 21 in this position. The re-assembly of the other parts is obvious.

In Fig. 3, the pintles 3| are each received in an upwardly opening recess such as formed in the support bracket 5I which is secured to the locomotive frame ll. This construction will be found to be of particular advantage in supporting the rearward end of an unusually long conduit section 21. In all other respects, this form of the invention is identical to the form shown in Fig. 1.

Those familiar with the art will readily understand that by the present construction, the screw 22 and conduit section 21 can be readily removed or installed from a convenient position in the locomotive cab I1. At the same time, the supporting means for the conduit section 21 allows this section to adjust itself in operative position without setting up any strains in the various parts of the Stoker due to wearing or other movements of the locomotive.

I claim:

1. In a locomotive comprising a frame, a firebox having a firing opening in the backwall thereof and a cab having a deck extending rearward of said backwall, the combination comprising a discharge conduit section secured to said backwall and being in communication with said reboxl through the iiring opening in said backwall, an inclined conduit section extending rearwardly from said discharge conduit section, means on the locomotive providing a pivotal support for the rearward end of said inclined conduit section whereby said inclined conduit section may be moved vertically about a transversely extending horizontal axis, the forward end of said inclined conduit section being supported by said discharge -conduit section by a flexible joint providing for movement about a transversely extending horizontal axis, and a third conduit sec- `tion extending rearwardly from said inclined conduit section and being universally connected therewith, the center of articulation of the universal joint between said third conduit section and said inclined conduit section lying approximately on the transversely extending horizontal axis of said pivotal support, said inclined conduit section being movable vertically about the transversely extending horizontal axis of said pivotal support and about the center of articulation of the universal joint between the third conduit section and the inclined conduit section to a position wherein said inclined conduit section opens axially into the cab rearward of said discharge conduit section.

2. In a locomotive comprising a frame, a rebox having a firing opening in the backwall thereof and a cab having a deck extending rearward of said backwall, the combination comprising a discharge conduit section secured to said backwall and being in communicationwith said firebox through the firing opening in said backwall, an inclined conduit section extending rearwardly from said discharge conduit section, means carried by the backwall providing a pivotal support for the rearward end of said inclined conduit section whereby said inclined conduit section may be moved vertically about a transversely extending horizontal axis, the forward end of said inclined conduit section being supported by said discharge conduit section by a flexible joint providing for `movement about a transversely extending horizontal axis, and a third conduit section extending rearwardly from said inclined conduit section and being universally connected therewith, the center of articulation of the universal joint between said third conduit section and said inclined conduit section lying approximately on the transversely extending horizontal axis of said pivotal support, said inclined conduit section being movable vertically about the transversely extending horizontal axis of said pivotal support and about the center of articulation of the universal joint between the third conduit section and the inclined conduit section to a position wherein said inclined conduit section opens axially into the cab rearward of said discharge conduit section.

3. In a locomotive comprising a frame, a firebox having a firing opening in the backwall thereof and a cab having a deck extending rearward of said backwall, the combination comprising a discharge conduit section secured to said backwall and being in communication with said rebox through the ring opening in said backwall, an inclined conduit section extending rearwardly from said discharge conduit section, means carried by the locomotive frame providing a pivotal support for the rearward end of said inclined conduit section whereby said inclined conduit section may be moved vertically about a transversely extending horizontal axis, the forward end of said inclined conduit section being supported by said discharge conduit section by a exible joint providing for movement about a transversely extending horizontal axis, and a third conduit section extending rearwardly from said inclined conduit section and being universally connected therewith, the center of articulation of the universal joint between said third conduit section and said inclined conduit section lying approximately on the transversely extending horizontal axis of said pivotal support, said inclined conduit section being movable vertically about the transversely extending horizontal axis of said pivotal support and about the center of articulation of the universal joint between the third conduit section and the inclined conduit section to a position wherein said inclined conduit section opens axially into the cab rearward of said discharge conduit section.

4. In a locomotive comprising a frame, a rebox having a ring opening in the backwall thereof anda cab having a deck extending rearward of said backwall, the combination comprising a discharge conduit section secured to said backwall and being in communication with said firebox through the firing opening in said backwall, an inclined conduit section extending rearwardly from said discharge conduit section, means on the locomotive providing a pivotal support for the rearward end of said inclined conduit section whereby said inclined conduit section may be moved vertically about a transversely extending horizontal axis, the forward end of said inclined conduit section being supported by said discharge conduit section by a flexible joint providing for movement about a transversely extending horizontal axis, and a third conduit section extending rearwardly from said inclined conduit section and being universally connected therewith,V the center of articulation of the universal joint between said third conduit section and said inclined conduit section lying approximately on the transversely extending horizontal axis of said pivotal support, said inclined conduit section being movable vertically about the transversely extending horizontal axis of said pivotal support and about the center of articulation of the universal joint between the third conduit section and the inclined conduit section to a position wherein said inclined conduit section opens axially into the cab rearward. of said discharge conduit section, and a screw in said inclined conduit section, said screw being removable from said inclined conduit section when the latter is moved in a position to open axially into the cab rearward of said discharge conduit section.

5. In a locomotive comprising a frame, a `:lirebox having a firing opening in the backwall thereof and a cab having a deck extending rearward of said backwall, the combination comprising a discharge conduit section secured to said backwall and being in communica-tion with said rebox through the firing opening in said backwall, an inclined conduit section extending rearwardly from said discharge conduit section, means carried by the backwall providing a pivotal support for the rearward end of said inclined conduit section whereby said inclined conduit section may be moved vertically about a transversely extending horizontal axis, the forward end of said inclined conduit section being supported by said discharge conduit section by a flexible joint providing for movement about a transversely yextending horizontal axis, and a third conduit section ex- .tending rearwardly from said inclined conduit section and being universally connected therewith, the center of articulation of the universal joint between said third conduit section and said inclined conduit section lying approximately on the transversely extending horizontal axis of said pivotal support, said inclined conduit section being movable vertically about the transversely extending horizon-tal axis of said pivotal support and about the center of articulation of the universal joint between the third conduit section and the inclined conduit section to a position wherein said inclined conduit sec-tion opens axially into the cab rearward of said discharge conduit section, and a screw in said inclined conduit section, said screw being removable from said inclined conduit section when the latter is moved in a position to open axially into the cab rearward of said discharge conduit section.

6. In a locomotive comprising a frame, a firebox having a firing opening in the backwall thereof and a cab having a deck extending rearward of said backwall, the combination comprising a discharge conduit section secured to said backwall and being in communication with said irebox through the firing opening in said backwall, an inclined conduit section extending rearwardly from said discharge conduit section, means carried by the locomotive frame providing a pivotal support for the rearward end of said inclined conduit section whereby said inclined conduit section may be moved vertically about a transversely extending horizontal axis, the forward end of said inclined conduit section being supported by said discharge conduit section by a exible joint providing for movement about a transversely extending horizontal axis, and a third conduit section extending rearwardly from said inclined conduit section and being universally connected therewith, the center of articulation of the universal joint between said third conduit section and said inclined conduit section lying approximately on the transversely extending horizontal axis of said pivotal support, said inclined conduit section being movable vertically about the transversely extending horizontal axis of said pivotal support and about the center of articulation of the universal joint between the third conduit section and the inclined conduit section to a position wherein said inclined conduit section opens axially into the cab rearward of said discharge conduit section, and a screw in said inclined conduit section, said scr-ew being removable from said inclined conduit section when the latter is mo-ved in a position to open axially into the cab rearward of said discharge conduit sectio-n.

'7. In a locomotive comprising a frame, a firebox having a firing opening in the backwall thereof and a cab having a deck extending rearward of said backwall, the combination comprising a fuel e-levating conveyor mounted on the locomotive and including a discharge conduit section in communication with said rebox and a conduit section extending rearwardly from said discharge conduit section, means on the locomotive providing a pivotal support for the rearward end of said conduit section, and a conduit section flexibly connected to the rearward end of said secondnamed conduit section, the forward end of said second-named conduit section being flexibly supported by said discharge conduit section, a screw in the second-named conduit section, and a screw inthe third-named conduit section, said screws being universally connected at the flexible connection between the second and third-named conduit sections, said discharge conduit section having a removable portion over the forward end of the second-named conduit section, said secondnamed conduit section having a removable portion over the forward end of the third-named conduit section, the forward end of the thirdnamed conduit section having a removable portion over the universal joint between said screws.

8. In a locomotive comprising a frame, a firebox structure mounted above said frame and having a backwall provided with a ring opening therein, a fuel elevating conveyor carried solely by said backwall comprising a discharge conduit section rigidly secured at its forward end to said backwall and communicating with said flrebox through said'firing opening, and an inclined conduit section extending vrearwardly of said discharge conduit section, means carried by said backwall for supporting the second conduit section therefrom, and means forming a universal connection between said discharge conduit section and the second conduit section providing substantial relative angular movement between said discharge conduit and said inclined conduit.

CHARLES J. SURDY.

Images