US2548134A

US2548134A - Locomotive stoker

Info

Publication number: US2548134A
Application number: US767033A
Authority: US
Inventors: Turner Edwin Archer
Original assignee: Standard Stoker Co
Current assignee: Standard Stoker Co
Priority date: 1947-08-07
Filing date: 1947-08-07
Publication date: 1951-04-10
Anticipated expiration: 1968-04-10

Description

April 10, 1951 E. A. TURNER LOCOMQTIVE STOKER Filed Aug. '7, 1947 2 Sheefis-Sheet 1 April 10, 1951 I E. A. TURNER LOCOMOTIVE STOKER 2 Sheets-Sheet 2 Filed' Aug. 7, 1947 II n INVENTOR.

E. HCHEE 77Je/vsz Patented Apr. 10, 1951 LOCOMOTIVE STOKER Edwin Archer Turner, Scarsdale, N. Y., assignor to The Standard Stoker Company, Incorporated, a corporation of Delaware Application August 7, 1947, Serial No. 767,033 X My invention relates to a flexible and sectional fuel conveying conduit system and particularly to a stoker conduit system mounted in and extending from beneath the fuel bin of a tender to the firebox of a locomotive.

In the normal operation of a locomotive and tender, relative longitudinal movement occurs therebetween as they travel over curves, and as slack therebetween is taken up in starting and stopping. It is, therefore, essential that the stoker conduit system of a stoker for delivering fuel from the tender bin to the locomotive firebox, be so constructed and mounted as to allow for such relative longitudinal movement.

Various Ways have been previously suggested ible and telescopic stoker conduit system and its arrangement with a locomotive and tender'that permits of relative longitudinal movement between parts thereof as relative longitudinalmovement between the locomotive and tender occurs.

Another object'of the invention is to provide a novel and practical telescopic stoker tender unit, to compensate for relative longitudinal movement occurring between the locomotive and tender, the major portion of the tender unit of the stoker being rigidly mounted on the tender.

Another object of the invention is to provide in a stoker conduit system wherein the forward end thereof is rigidly mounted on the locomotive and the rearward end thereof is rigidl mounted on the tender, a novel and practical construction and arrangement of parts aifording the necessary extensibility to compensate for relative longitudinal movement between an inter-coupled locomotive and tender.

Further objects and advantages will become apparent as the following description is read in connection with the accompanying drawings, in which Figure l is a central vertical longitudinal section through adjacent ends-of a locomotive and tender withthe novel stoker conduit system applied thereto, and shown partly in similar section and partly in elevation;

Figure 2 is a sectionalview taken on the line 2-2 of Figure 1; I 7' 5 Claims. (Cl. 198-15) ill Figure 3 is a sectional view taken on the line 3-3 of Figure 2;

Figure 4 is a plan view of a modification of the telescopic trough portions of the stoker conduit system;

Figure 5 is a central vertical longitudinal section through the modified form of the invention shown in Figure 4;

Figure 6 is a sectional View taken on the line 6-6 of Figure 5; and

Figure 7 is a sectional view taken on theline 1-1 of Figure 5.

0n Figure l of the drawings there is shown an intercoupled locomotive and tender, the locomotive bein indicated by the'reference character L, the tender by T, and the coupling connection therebetween by C. The coupling C, of any well known construction, permits articulation between the locomotive and tender, and provides for the usual amount of relative longitudinal movement between them.

Fuel is conveyed from beneath the fuel bin ID of the tender to the firebox l I of the locomotive by a stoker, indicated generally by the letter S, which includes a conduit system comprising a trough conduit section l2 mounted on the tender, a discharge conduit section It rigidly mounted on the locomotive, and an intermediate conduit section 14 connecting the conduit sections I2 and 13. A flexibl connected sectional screw conveyor l5 advances the fuel through the conduit sections l2, l3 and I4.

The trough section l2 includes a relatively short U-shaped front trough portion I 6 and a relatively long U-shaped rear trough portion H which are telescopically connected, as and for the purpose hereinafter described, to provide for relative longitudinal movement therebetween.

The rear trough portion I! is preferably of built-up construction including the front cast trough member I8, having an integrally cast base l9; the rear cast trough member 20, having an integrally cast base 2! and a preferably integrally cast gear housing 22; and a bent U-shaped sheet metal trough member 23 received at its opposite ends in and secured in any suitable manner to the cast trough members 18 and 20. It is apparent, however, that the rear trough'portion ll may be formed as an integral unitary casting or built up in any suitable manner, if desired. The rear trough portion I! is rigidl secured through the base i9 and base 2i to the tender underframe 24 in any suitable manner.

The forward end of the rigidly mounted rear trough portion I7 is slightly enlarged and isar ranged to receive the rearward end of the front trough portion 6. The telescopic connection between the trough portions It and H provides for relative longitudinal movement therebetween as relative longitudinal movement between the locomotive and tender occurs. Also, as the boiier of the locomotive expands and contracts, the front trough portion l5 slides inwardly and outwardly in the rear trough portion H.

The sidewalls of the enlarged forward end of the rear trough portion l! are formed at their upper ends with the inwardly extending

flanges forming guideways

25 and 26, as best shown in Figure 2, and are arranged to receive the upper ends of the side walls of the front trough por tion 58. It is evident then, that while the front trough portion 5 is free to slide longitudinally with respect to the rear trough portion ll, other relative movement between the trough portions l6 and i! is arrested.

The front trough portion :5 is provided at its forward end with a hollow spherical shell 2? arranged to be received in the vertically split spherical clamp 28 of the intermediate conduit section l4, forming a universal joint connection between the intermediate conduit section i4 and the trough section l2. The lower end of the discharge conduit section IB is formed with a horizontally split spherical seat 29, receiving the ball member 3% of the intermediate conduit section :4, to form a universal joint connection between the two conduit sections. The universal joint connections in the conduit system allow for relative angular movement between the conduit sections as relative angular movement between the locomotive and tender occurs in traveling over curving track.

While a crusher (not shown), for reducing oversize lumps of coal to a suitable size for conveyance through the conduit system and for firing, may be mounted on the front wall SI of the front trough portion It, as an alternative a crusher may be mounted on the front wall 32 of a U-shaped strap member 33 which is attached in any suitable manner through its side walls 34 and 35 to the side walls of the rear trough member 23. If the crusher (not shown) is attached to the wall 3!, then the U-shaped member 33 1s dispensed with. The crusher may, therefore, alternatively be secured to the movable trough portion or to the rigid trough portion of the trough conduit section l2.

It will be observed that, in the stoker construction above described, the entire trough 12, including the rigid rear trough portion H and the longitudinally slidable front trough portion PE, is open at its top to receive fuel from the bin it and the region of the crusher (not shown) is readily accessible should foreign material, such as rail spikes, tramp iron, etc., be caught between the screw conveyor lii and the crusher or the restricted opening 36 between the trough portion l5. and the spherical shell extension 2?.

In Figures 4, 5, 6 and '7 is shown a modified form of the invention, only that portion incorporating structural differences being illustrated. In this construction the bent trough sheet 4% of the rigidly mounted rear trough portion 4|, extends forwardly of the trough support casting 42. The front trough portion 43 fits closely about the extension 44 of the trough sheet 49 and is supported therefrom. The means for supporting the front trough portion 43, includes the inturned

flanges

45 and 46 extending inwardly and then downwardly from the upper ends of the respective sidewalls 41 and 48 of the trough portion 43. The inturned

flanges

45 and 46 rest on

sidewalls

49 and 50, respectively, of the trough sheet extension 44.

It is evident that while the front trough portion 43 is slidable longitudinally with respect to the rear trough portion 4i, other relative movement be"ween the trough portions 4! and 43 is arrested. As in the preferred form of the invention, a crusher (not shown) may be mounted on the front wall 5| of the trough sheet extension 44, or if desired, this wall may be removed and the crusher mounted on the front wall 52 of the longitudinally movable front trough portion 43. A pair of slots 53 and 54 in the forward end of the trough sheet extension 44 provide ways for the arcuate inwardly extending wall 55 to permit longitudinal movement of the front trough portion 43.

A removable wear plate 56 is secured in any suitable manner on the bottom of the forward end of the trough sheet 40, where most of the wear takes place.

From the foregoing, it is apparent that while the trough conduit section of the stolrer is arranged to compensate for relative longitudinal movement between the locomotive and tender, the major portion of the trough is adapted to be rigidly mounted on the tender. Only a small forward portion of the trough is pulled forward or pushed rearward on the tender by the locomotive as relative longitudinal movement between the two vehicles occurs, thereby minimizing the strain imposed on the front sections of the conduit system and on parts of the locomotive as compared to constructions in which the entire trough section is pulled forward or pushed rearward in the tender by the locomotive. At the same time the conduit system dispenses with relatively longitudinally moving parts between the forward end of the trough and the discharge conduit and the entire trough is open to the fuel bin to receive fuel therefrom.

I claim:

1. A stoker for an intercoupled locomotive and tender, including a fuel discharge conduit section adapted to be rigidly mounted on the locomotive, a fuel receiving conduit comprising a rearward open mouth forwardly opening trough member adapted to be rigidly mounted on the tender and a forward open mouth rearwardiy opening trough member mounted telescopically with the forward end of said rearward member to provide for relative longitudinal movement thcrebetween, said trough members being in axial alinement with their telescoped end portions in circumambient relation, and an inextensible intermediate conduit flexibly connected at its ends with said discharge conduit section and said forward open mouth trough member.

2. A stoker for an intercoupled locomotive and tender, including a fuel discharge conduit section adapted to be rigidly mounted on the locomotive, a fuel receiving conduit comprising a rearward open mouth forwardly opening trough member adapted to be rigidly mounted on the tender and a forward open mouth rearwardlyopening trough member mounted telescopically with and supported by the forward end of said rearward member to provide for relative longitudinal movement therebetween, said trough members being in axial alinement with their telescoped end portions in circumambient relation, and an inextensible intermediate conduit flexibly connected at its ends with said discharge conduit section and said forward open mouth trough member.

3. A stoker for an intercoupled locomotive and tender, including a fuel discharge conduit section adapted to be rigidly mounted on the locomotive, a fuel receiving conduit comprising a rearward open mouth forwardly opening trough member adapted to be rigidly mounted on the tender and a forward open mouth rearwardly opening trough member mounted telescopically with the forward end ofsaid rearward member to provide for relative longitudinal movement therebetween, the overlapping surfaces of said telescoping members fitting closely one within the other, and inturned flanges formed along the upper edge of the overlapping side walls of the outer of said members and extending over the upper edge of the overlapped side walls of the inner of said members, said overlapping surfaces and flanges arresting any but relative longitudinal movement between said members, and an inextensible intermediate conduit flexibly connected at its ends with, said discharge conduit section and said forward open mouth trough member.

4. A stoker for an intercoupled locomotive and tender, including a fuel discharge conduit section adapted to be rigidly mounted on the locomotive, a fuel receiving, conduit comprising a rearward open mouth forwardly opening trough member adapted to be rigidly mounted on the tender and a forward open mouth rearwardly opening trough member mounted telescopically within the forward end of said rearward member to provide for relative longitudinal movement therebetween, the overlapping surfaces of said telescoping members fitting closely one within the other, and inturned flanges formed along the upper edge of the forward portion of the side walls of said rearward trough member and extendin over the upper edge of the side walls of said forward trough member, said overlapping surfaces and flanges arresting any but longitudinal movement of said forward trough member with respect to said rearward trough member, and an inextensible intermediate conduit flexibly connected at its ends with said discharge conduit section and said forward open mouth trough member.

5. A stoker for an intercoupled locomotive and tender, including a fuel discharge conduit section adapted to be rigidly mounted on the locomotive, a fuel receiving conduit comprising a rearward open mouth forwardly opening trough member adapted to be rigidly mounted on the tender and a forward open mouth rearwardly opening trough member mounted telescopically about the for- Ward end of said rearward member to provide for relative longitudinal movement therebetween, the overlappin surfaces of said telescoping members fitting closely one within the other, and inturned flanges formed along the upper edge of the side walls of said forward trough member and extending over the upper edge of the forward portion of the side walls of said rearward trough member, said overlapping surfaces and flanges arresting any but longitudinal movement of said forward trough member with respect to said rearward trough member, and an inextensible intermediate conduit flexibly connected at its ends with said discharge conduit section and said forward open mouth trough member.

E. ARCHER TURNER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,702,908 Lower Feb. 19, 1929 1,818,115 Claghorn Aug. 11, 1931 1,984,025 Lippert Dec. 11, 1934 2,103,212 Turner et a1 Dec. 21, 1937 2.413.448 Hanna Dec. 31, 1946