US989595A - Locomotive-tender. - Google Patents

Description

L. W. GALLOWAY.

LOUOMOTIVE TENDER.

APPLIU I N FILED JAN. 30, 1911.

Patented-Apr. 18,1911.

2 S HEETSSHEET 1.

Qfrwiewf w W J L L. W. GALLOWAY. LOGOMOTIVE TBNDER. APPLICATION IIL'ED JAN. 30, 1911.

Patntem r. 18, 1911.

To ,aZZ-whomtt may concern: 4 j Beit known thatsl, Ltoro W. GALLOWALY, 1a citizenot :the United States, residing at (ll'inton -in.the-couility of Clinton and State fiiot lowa. have invented certain-new and use-v i'ul Imprownnentsin Locomotive-Tenders, of

' =\Q\'h icl1. the following-is a'spcification.

1.111 the forms of tenders heretofore in com- ;h-n on use, the vibration of the tender has ;..caueed the slaclt;.-coal to settle into the lower rear portion oi. the coal pit, where it accumulated and became watersoaked and airslacked. Thelumps otcoal also became em- 1 bedded in the slack and could be loosened l and advanced only by the application of consit-l-erable' physical force.

v T he object-of my invention, generally stated, is-to produce a mechanism for pass- .ing the coal contained in the coal .pitof a -.l.oco.niotive ;tender to a. point within convenient reach of the fireman.

Special objects of the invention are to proyide a type of coal-passing mechanism which ,sha'llbe operati'vely independent of. thefur- 1race,'s0 thatits use shall not necessitate the eniployment ,of a mechanical stoker or require any alterations of the furnace; to arrange a coal-passing mechanism that will act .-upon. the lower portion of the mass of coal, whereby .dCCUlTlUltltlOIlS of slack are prev ;v.entetl: -.from forming, and whereby the slack and 'lLn-nps are mixed and the mass broken =np;-to arrange thecoal-passing mechanism so that it shall not reduce the coal-storage space and. to locate the mechanismso that it shall not be exposed to the weather.

Inthe accompanying drawings, Figure 1 is a side elevation-of a locomotive tender and the reaifportion of the locomotive, illustratin the relation of the coal-. assin D D mechanism to the tender and locomotive. Fig. 2 is a longitudinal. sectional view of said mechanism. Fig. 3 is a. fragmental t 'ansverse sectional view. Figs. 4 and are fragmental top plan and front end views of the tender. Fig. 6 is a horizontal sectional view of the coal-passing mechanism.

The embodiment herein shown of my invention comprises a water tank 1 and a coal pit 2 the rear wall 3 of the coal pit being upwardly and rearwardly inclined. The lower portion of the coal pit is relatively narrow, each side wall comprising the vertical portion 4E and the upwardly and out- 5 wardly inclined portion 5.

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1 j Specification of Letters Fatent. P gitntfl gyp g v i Application-jfiletl January 20,1911. Serial neeosssslj I a i Z j Etch.

' ee momwnm ns I (3 are water-spaces at each side of the 111.

. The bottom 7 of the coal pit is in substantially the same horizontal plane as the deck 8 of the locomotive. The rear portion of the walls 5 and the bottom 7 may be lined, as herein shown,- by metallic members or plates coal '9 10. Alined with the lower portion of the coal pit and extending into the tankis a. chamber-11. A plunger 12 having sides 13 and a. top 1 1 and preferably provided with supporting rollers 15 is mounted for movement upon the plate 9 and into and out of the chamber 11. Said plunger is ot'substantially the same width as the space between the plates 10, the latter having flanges 16 (Fig. 3), that overhang the side edges of the top 14. To prevent slack from getting behind the plunger 12 Iattach to the front side of the plunger a plate 17 having a groove 18 in its lower edge, within which groove is a packing strip 19 held in contact with the plate 9 by any suitable means such as a spring 20. Preferably the plate 17., is arranged for vertical adjustment to take up wear, as' by securing it in place with screws 21 extending through elongated openings 22. Suitable packing (which may be similar to the packing 19 20 just described) is preferably provided at the side edges er the plunger and at the lower edge of the hopper wall as indicated at 28 in Figs. 2 and 6.

The means herein shown for reciprocating the plunger 12 comprises acylinder 24 lo cated within the chamber 11, and containing a piston 25 which 1s connected by a rod 26 to the plunger The passage of pressure fluid to and from the cylinder 24- is con trolled by any suitable valve mechanism, as, for-instance, a valve 21' slidable within the valve chest 28, said valve having an axial opening 29 and a sleeve or tube 30 31 at each end alined with the opening 29.

32 are stutling boxes through which the sleeves 3O 31 extend. The outer end of each sleeve 30 31 is provided with a head or cap 33 84. Attached to the plunger 12 is a valve-actuating rod 35 extending within the valve 27 and the sleeves 3O 31. Upon the rear end of the rod 30 is a collar or projection 36 adapted alternately to contact the head 33 and an adjusting screw 37 carried by the head 34. hen the plunger 12 approaches the forward limit of its travel, the projection 36 contacts the head 33 and shitts the valve 27, thus causing a reversal of the direction of movement of the plunger. As the plunger nears its rearmost position, the projection 36 strikes the screw 37 and shifts the valve into the position indicated in Fig. 6', thereby again reversing the direction of travel of the plunger.

Any suitable pressure fluid, such as water, air, live steam or exhaust steam, may be employed to actuate the piston 25. Herein I have shown a fluid supply pipe 38 supported .on the tender and connectedat one end with the valve chest 28 and at its other end flexibly connected to a supply pipe 39 on the locomotive. I have deemed it unnecessary to illustrate the exhaust ports and passages of the valve chest. The supply of pressure fluid to the plunger-actuating cylinder may be controlled in any suitable manner and from any desired point. In this i11- stance, I have illustrated a throttle valve 40 located in the-pipe 39 at a point convenient to the fireman.

In use, the forward end of the coal pit is closed, as usual, by a gate (not shown) having a small shoveling opening in its lower edge, until all the coal accessible through such opening has been removed, whereupon the fireman removes the gate. The coalpassing mechanism may now .be actuated to .push the coal forward to a point within convenient reach of the fireman. \Vhen the plunger 12 is within the .coal pit the top 14: serves to support the superincumbent coal. The mechanism is actuated intermittently and as frequently as may be necessary to keep a supply of coal on the forward part "of-the bottom 7. As the coal-passing mechanism operates upon the lower part of the mass of coal, slack is prevented from accumulating, the slack and lump coal being advanced together.

I The embodiment herein shown of myinvention being susceptible of various modifications, I would have it understood that the invention is not limited to the details set forth.

movement over the bottom of the coal pit, said plunger having meansto support coal resting upon the plunger when the latter is projected forwardly; and means for reciprocating the plunger. i I

2. In a locomotive tender, the combination ofa coal pit having a relatively narrow lower portion, and a coal-passing mechanism located in the horizontal plane of said lower portion and above the bottom of the pit, said mechanism comprising a rectilinearly movable plunger of substantially the same width-as the lower portion of the pit.

3. In a locomotive tender, the combination of a coal pit having a rearwardly and upwardly inclined rear'wall, a plunger located below said rear Wall for movement over the bottom of the coal pit, and means for reciprocating said plunger to pass coal from the rear portion of the pit tothe forward portion thereof.

4. In a locomotive tender, the combination of a coal pit and a water tank, said coal pit having a relatively narrow lower portion and a rearwardly and upwardly inclined rear wall, a plunger mounted for reciprocatory movement over the bottom of the pit, a chamber extending rearwardly from the lower end of said inclined rear wall into the tank, and adapted to receive said plun ger, and means within said chamber for reciprocating said plunger.

5. In a locomotive tender, the combination of a coal pit having a relatively narrow lower portion, a plunger supported for movement uponthe bottom of the pit, the width of said plunger being substantially equal to the width of the lower portion of the pit, a horizontal coal-supporting member attached to and extending rearwardlyfrom the plunger, means for horizontally reciprocating said plunger. and member, and

packing means between the sides, bottom and top of the plunger and member and the adjacent walls of the pit.

In testimony whereof I aflix my signature in the presence of two Witnesses.

LLOYD WV. GALLOVVAY.

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