US1925710A - Stoker conveyer - Google Patents

Description

Septo 5, 1933.

H. F.l ANDERSON STOKER CONVEYER Filed Aug. 23, 1930 A TTORNE Y Sept. 5, 1933. H. P. ANDERSON S'TOKER GONVEYER 2 Sheets-Sheet 2 K INVENTOR BY//afdfzdefmfz ATTORNEY Patented Sept. 5, 1933 UNITED STATES STOKER CONV EYER Howard P. Anderson,` Erie, Pa., assignor to The Standard Stoker Company, Incorporated, a corporation of Delaware Application August 23, 1930. Serial No. 477,263

11 Claims. (Cl. 198-15) My invention relates to locomotive or other stokers and is especially concerned with stoking apparatus employing fiexibly connected fuel conveyer conduits through which fuel such as coal of sizes varying from lump to diminutive particles is conveyed.

I aim to provide an improved flexible conveyer conduit through which all sizes of .fuel may be conveyed without loss by leakage through the fiexible or telescoping connections of the fuel conduit and Icontemplate constructing lsuch an improved conveyer with a minimum number of rugged parts assembled quite easily and expeditiously, and arranged to permit longitudinal movement between that part of the conveyer conduit mounted on tlfe tender and that part mounted on the locomotive.

A.A further advantage of my invention is its system of lubricating the flexible joint connecting the conduit sections, that also serves as a' seal against the fuel to prevent loss of same between the parts of the joint.

How these= and other advantages of my invention can be obtained will appear from my description hereinafter of a preferred embodiment of the invention.

In the drawings Fig. 1 is a central longitudinal section through a portion'of a locomotive and tender with the device Aof the invention applied thereto' Fig. 2 is a plan view of Fig. 1 withthe outline of the locomotive and tender conventionally shown and with portions of the fuel conduit bro- 35 ken away;

Fig. 3 is a vertical cross section on the lines 3 3 of Fig. 1;

Fig. 4 is a vertical section on the line 4-4 of Fig. 2;

conduit on the line 5.-5 of Fig. 1; and

Fig. 6 is a vertical cross section on the line 6-6 of Fig'. 2. l

The locomotive selected to illustrate oneform of the invention isl shown at 10 having a flrebox a fuel bin 17 with an apertured oor 18 spaced above the base or frame 19. The locomotive and its tender are coupled together at 20 Vby any suitable coupler and draw bar connection that vwill lpermit articulation between them.

The Stoker chosen to disclose the preferred em- Fig. 5'is a transverse section through the` fuel bodiment of the invention comprises a sectional conveyingvsystem formed of a rearward portion A mounted on the tender and a forward portion B extending forwardly from the rearward portion and at its forward end arranged to deliver the fuel to the locomotive rebox. In the use of my invention it is preferred although not necessary, that at least one of the conduit sections be rigidly mounted. In the embodiment shown the rearward portion A of the conduit system is rigidly disposed on the tender frame and comprises a trough member` 21 opening upwardly to receive fuel from the bin 1'7 through the apertured floor 18. The forward portion B may be formed in one section, but as shown is' composed of the forward 70 nozzle or riser member 22 rigidlyfixed to the firebox backwall 13 as by a bracket 23 in direct communication with the rebox through the firing opening 14, and a tubular conduit 24 which in effect constitutes an intermediate section disposed between the trough 21 and the nozzle 22. It will be noted the sections communicate with one another at their-adjacent ends to form a passage through which the fuel may be transferred from the tender fuel bin and delivered into the locomotive rebox.

The trough 2l is formed with an extension 2S extending beyond the front of the tender and mounted on the forward end thereof is a ball member 26. The ball member 26 is arranged to move longitudinally of the trough extension, but rotary movement is prevented by means of a rib and slot arrangement hereinafter described in detail. The ball member 26 has longitudinal slots 27 formed in its inner face arranged to receive the longitudinal ribs 28 formed on the outer surface of 'the extension 25 whereby longitudinal movement is permitted and rotary movement prevented. 'I'he extension 25 is provided at its rearward end with the-flange'38, which forms a removable frontend for the tender trough and is secured thereto by suitable fastening means as by bolts. This construction affords easy and convenient access to the crushing zone of the trough without making it necessary to remove the coal from the trough. t

' The intermediate conduit section 24 is provided at its rearward end with the vertically split clamp 29, arranged to receive the ball member 26. The split clamp 29 comprises thesections 30 and 31. The section 30 is provided in its inner surface with the longitudinal slot 32 and the Section31 with the longitudinal slot 33. The slots 32 and33 are arranged to receive the pins 34 and 35 respectively, formed on the outer surface of the ball 110 4member 26 whereby the intermediate conduit section 24 is permitted to operate through angles while the locomotive is rounding corners, but rotary movement of the intermediate conduit section is prevented. l

The intermediate conduit section 24 is provided at its forward end with the ball member 36 which `may if desired be made an integral part of the intermediate conduit, but for maintenance purposes, ease of application and removal, the ball member 36, is made a separate casting and bolted to the intermediate conduit as at 37.

The nozzle 22v terminates at its lower end in a spherical seat 3 9 receiving the ball member 36. From its lower end the nozzle extends upwardly and forwardly, flaring outwardly at its upper end, and communicates with the firing opening 14 through its laterally spreading and substantially horizontal mouth portion 40. The mouth portion 40 is provided with the flanges 41, 41a, for attachment to the backhead by suitable fastening means, as by bolts. This mouth portion is formed with an upstanding wall 42 to which is detachably mounted a distributor plate 43, which forms an extended floor portion of the nozzle projecting through the firing opening 14. The nozzle-22 is provided with an opening 44 through which access may be had to the interior thereof. A cover 45 is provided for the opening 44 which may be hinged at its upper end and held in closed position by a latch 46. Rearwardly of the distributor plate 43 and outside of the rebox is a vertically disposed distributor head 47 to which pressure fluid such as steam is supplied by a desirednumber of supply pipes 48. The distributor head 4'? is provided with a plurality of openings 49 emitting a blast of fluid across the distributor plate.

The fuel conveying means comprises a screw conveyer 50 mounted in the trough 2l and the extension 25, flexibly connected at its forward end with the screw conveyer 51 disposed in the intermediate conduit 24 and terminating adjacent the ball member 36. AArched over the screw 50 at the forward end of the trough is a crushing member 52 for breaking up the larger lumps of coal to a suitable size for ring.

The universal connection joining the adjacent ends of the rearward conveying section A and the forward conveying section B is lubricated. in a novel manner which lubricating system also serves as a seal against the fuel to prevent loss of same between the parts of the joint.

The two sections 30 and 31 of the split clamp 29 are provided with the grooves 53, 54 and the grease gun connections 55 and 56 of the well known alemite type whereby grease is forced into the grooves 53, 54 furnishing lubrication between the split clamp 29 and the ball member 26 and further making a positive seal against leal/sage of :une coal. The inner surface of the ball member 26 is also provided with. grooves 57 and grease gun connections 58 of the well known alemite type whereby grease is forced into the grooves 57 furnishing lubrication between the ball member 26 and the extension 25 of the trough and further making a positive seal against leakage of fine coal.

Thus it is apparent I provide a novel flexible joint for use in a sectional conveyer conduit permitting angular and longitudinal movement between the sections and at the same time, preventing loss of the material being conveyed.

I claim:

1. In a sectional conveying system a rigidly mounted conduit and a movable conduit, the

forward end of said rigid conduit comnmicating directly with the rearward end of said movable conduit, a ball member slidably mounted on the forward end of said rigid conduit, a slip joint associated therewith comprising a rib and slot arrangement permitting longitudinal movement of said ball member but resistingrotary movement thereof, a split clamp at the rearward end of said movable conduit arranged to receive said ball member, a slip joint associated therewith comprising a rib and slot arrangement permitting universal movement of said movable conduit but resisting axial rotary movement thereof.

2. In a locomotive stoker, a conveying system including a conduit section rigidly mounted on the locomotive, a conduit section rigidly mounted on the tender, a unitary intermediate conduit section connecting the other two sections in flexible relationship, and means adjacent the com.

forward end withr a ball member arranged,

throughout to slide longitudinally thereon and having means associated therewith for preventing rotary movement of said -ball member with respect to said tender conduit section, an intermediate conduit section connecting the other two conduit sections, said intermediate conduit being provided at its rearward end with a split clamp arranged to receive said ball member whereby relative universal and longitudinal movement of said conduits is effected.

4. In a Stoker mounted on a locomotive, having a backwall with a firing opening therethrough, and a tender for said locomotive, a fuel conveying system including a conduit section rigidly mounted on the locomotive and delivering to said firing opening, a conduit section rigidly mounted on the tender, a ball member slidably mounted on the forward end of said tender conduit section, a unitary intermediate conduit section connecting the other two conduit sections, a split clampat the rear of said intermediate conduit arranged to receive said ball member, means associated with said ball member and said tender conduit section and means associated with said split clamp and said ball member permitting.

tender, a fuel conveying system comprising a rearward portion provided with a cylindrical extension on the tender and a forward portion extending forwardly from the rearward portion and at its forward end arranged to communicate with the locomotive rebox, at least one of said portions being rigidly mounted, and a joint connecting the communicating ends of said rearward and forward conduit portions including a ball memvber having a greater internal diameter throughout its length than the external diameter of said cylindrical extension and arranged to slide longitudinally on said extension, said joint formed to permit relative universal and longitue, .r1 moveilse ment between the rearward and forward conduit portions and means associated with said joint preventing axial rotary movement between said rearward and forward conduit portions.

6. n a sectional conveying system a pair of directly communicating conduits, means for providing relative longitudinal and universal movement between said conduits comprising a ball member slidably mounted on one conduit and a split clamp on the other conduit arranged to receive said ball member and the communicating end of the other conduit, grooves in the inner faces of said ball member and said split clamp forming passages, a lubricant in said passages forming a seal vand. openings in said ball member and said clamp communicating with said passages forming lubricant intake ports.

'7. A ball joint connecting the sections of a sectional conveying system, comprising a ball member having diametrically opposed lugs, a split clamp receiving said ball member, said split clamp constituting a portion of a conduit and provided with recesses for engaging the lugs of said ball member for resisting relative axial rotary movement of said clamp about said ball member, grooves in the opposite inner faces of said clamp terminating adjacent said recesses forming passages between said ball member and said clamp, a lubricant in said passages forming a seal between said clamp and said ball member, and openings in said clamp communicating with said passages forming intake ports for a lubricant.

8. In a stoker mounted on a locomotive'and tender, a trough Von the tender provided at its forward end with a cylindrically shaped extension mounted rigid with the tender, a movably mounted conduit section extending forwardly from and communicating directly with said extension, a ball member vertically supported in its normal position solely by said .extension and arranged to slide thereon longitudinally of the tender, said conduit section having an element of a ball and socket joint at its rear end arranged to receive said ball member.

9. In a Stoker mounted on a locomotive and tender, a trough on the tender provided at its forward end with'a cylindrically shapcfd extension mounted rigid with the tender, a ball member vertically supported in its normal position solely by said extension and arranged throughout to slide thereon longitudinally of the tender, and a movably mounted conduit section extending forward from said extension having an element of a ball and socket joint at its rear end arranged to receive said ball member, said extension and said conduit being in direct communication.

10. In a Stoker mounted on a locomotive and tender, a trough on the tender provided at its forward end with a straight cylindrically shaped extension mounted rigid with the tender, a.. ball member vertically supported in its normal posiy tion solely by said extension and slidably mounted thereon to move longitudinally with respect to the tender, said ball member having a constant internal diameter throughout its length greater than the external diameter of said extension and a movably mounted conduit section extending forward from said extension having a split clamp at its rearfend arranged to receive said ball member and the forward end of said extension.

11. A ball joint connecting the sections of a sectional conveying system, comprising a ball member, a split clamp receiving said ball member and constituting a portion of a conduit, said ball member and said split clamp each being provided with one element of a pin and groove arrangement permitting angular displacement of said split clamp and said ball member but resisting axial rotary movement of said split clamp, about said ball member, grooves in the opposite inner faces of said clamp terminating adjacent said pin and groove arrangement forming passages between said clamp and said ball member, a lubricant in said passages forming a seal between said clamp and said ball member, and openings'in said clamp communicating with said passages forming intake ports for a lubricant.

HOWARD?. ANDERSON.

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