US2235410A - Locomotive tender - Google Patents

Description

March T18, 319 21, F. P. ROESCH LOCOMOTIVE TENDER Filed April 6, 1959 4 Sheets-Sheet l N0 rN w m MR K MYW m J March 1941- 'F. P. RoEscH LOCOMOTIVE TENDER Filed April 6, 1939 4 Sheets-Sheet 2 N E 4 Sn bu nNmw WNAANA VI/IIA VIII ATTORNEYS INVENTOR rwn-ex TORNEYS 4 Sheets-Sheet 3 March 1941- F. P. ROESCH LOCOMOTIVE TENDER Filed April 6, 1939 M L K Jame r March 18, 1941. F. P. ROESCH LOCOMOTIVE TENDER Filed April 6, 1939 4 Sheets-Sheet 4 -j INVENTOR FRANK P.'ROE5CH B BY F4 JAM/J47 @fyr ATTO RNEYS Patenied Mar. 18, 1941 UNITED STATES want LOCOMOTIVE TENDER Frank- P. Roesch, Chicago, Ill., assignor to The Standard Stoker Company, Incorporated, a corporation of'Delaware Application April 6, 1939, Serial No. 266,319

6 Claims.

This invention relates to railway rolling stock and. particularly tolocomotive tenders provided with stoker conveyor mechanism.

An object of the invention'isto provide a novel tender and stoker construction which will permi-t convenient installation of the stoker With a minimum of labor and expense and in which the stoker takes up a minimum of the water space of the tender.

Another object of the invention is to provide a tender and stoker construction of the type described in which convenient access may be gained to the various parts of the st cker from the fuel bin of the tender for purposes of inspection, re-

pair and replacement.

Another object of the invention is to provide an improved construction and. relation of parts in the tender for the lubrication of the stoker drive mechanism.

Another object of the invention is to provide a novel st cker drive, the construction of the drive and the arrangement thereof with the stoker providing a more compact unit and providing for convenient assembling and disassembling of the parts thereof.

Still another object of the invention is to provide an improved tender underfram-e of the waiter bottom type constructed to afford a maximum of strength, to'provi'de an unobstructed bottom surface making it conveniently available for application of air compressors, piping and other necessary appurtenances, and to provide a maximum of water space.

Other objects and advantages of the invention reside in the novel construction of parts and the combination and relation of elements as will appear from the following description and claims when read in connection with the accompanying drawings, in which Figure 1 is longitudinal vertical section on the irregular line l-l of Figure 2 through the novel tender underframe and a portion of the superstructure, with a stoker installed therein and shown in elevation;

5 Figure 2 is :a' sectional View taken on the line 22 of Figure 1;

Figure 3 is a fragmentary plan view through the forward portion of the tender showing the stoker applied thereto, parts being broken away; 50 Figure 4 is a longitudinal vertical central section through the forward portion of the tender with the stoker applied thereto and shown in similar section;

Figure 5 is a sectional view taken on the line 55 5--5'of-Figure 4;

Figure 6 is a sectional view taken on the irregular line 6-6 of Figure 5;

Figure 7 is a sectional View taken'on the line l-'! of Figure 4;

Figure 8 is a sectional view taken on the line 5 8-8 of Figure 4;

Figure 9 is a sectional view taken on the line 9-9 ofFigure 4, and

Figure 10 is a sectional view taken on the line Ill-l0 of Figure 4. I

In the drawings, the tender is designated as a whole by the letter T and includes the underframe Ill upon which is mounted the superstructure or tender body'portio The body portion includes a fuel bin l2 and the 15 water compartment [3 separated by partition plates including the fuel bin floor M, the rear slope sheet I5 and the side walls [6 and IT,

The fuel bin floor I4 is provided with a longitudinal centrally disposed cut out or opening It, 20

extending substantially the entire length of the fuel loin floor. An open mouth trough l9, disposed in the water compartment I3, is arranged to receive fuel from the bin [2 through the opening 18 in the floor thereof. The upper marginal sides of the trough [9 are provided with the outward- 1y extending flanges 20 and 2 1, respectively, overlapping the fuel bin floor l4 adjacent the marginal sides of the opening [8 therein, whereby the trough I9 is supported by the fuel bin 30 floor.

The rearward portion of the longitudinally extending opening l8 is laterally enlarged, as at 22, best shown in Figure 3, to receive :a casing or housing '23, which is disposed in the water com- 35 partment 13 at the rearward end of and in communication with the trough I9. The housing 23 is open at its upper end and a flange 24 extends outwardly from the upper marginal edged the casing overlapping the fuel bin floor I4. The 40 open upper end of the housing 23 is provided with a removable cover 25 providing access to the interior of the housing 23 from within the fuel bin I2. The front wall 26 of the housing 23 is provided with an opening conforming to the shape of the trough l9 and a flange 21' extending outwardly from the marginal edge of the opening in the housing front wall 26 overlaps the outersurface of the rearward end of the trough l9. The rearward end of the trough H is open providing communication between the trough and the housing 23. A weld 28 effects a rigid and water tight connection between the trough l9 and the flange 21 of the housing 23. The trough l9 and housing 23 can .be installed in position as a unit, after which the flanges 28 and 2! of the trough i9 and'the flange 2 of the casing are secured to the fuel bin floor it, by the welds 29, Eli and 3|, respectively, providing a Water tight seal between the water compartment and the fuel bin.

The front wall 32 of the water compartment is cut out at 33 following the contour of the trough l 9, permitting insertion of the latter, after which the front wall 32 and the trough 19 are welded together, as at providing a water tight seal. The trough l9 extends a short distance forward of the front wall 32 and has a transversely extending plate 35 rigidly secured to the front end thereof, as by a Weld 3B. The plate 35 is provided with a circular opening Bl forming a passage to the interior of the trough It. A hollow ball casting 38 is provided with a short tubular portion 39 registering with the opening 31 in the plate 35 and bolts 4i! passing through the flange 4| projecting outwardly from the tubular portion 39 rigidly secure the ball casting 33 to the plate 35. The hollow spherical portion 42 of the ball casting 38 is received in the spherical clamp portion 43 of the conduit 4 which extends forwardly to the locomotive (not shown). The ball and clamp connection provides universal movement between the tender unit of the stoker and that portion leading forward to the locomotive when the locomotive and tender round curves or pass over switches and turntables.

A screw conveyor 45 is disposed in the trough l9 and extends forwardly into the ball casting 38 through the opening of in the plate 35. At its forward end with the hollow spherical portion 42, the screw conveyor 45 is universally connected at 46 with a screw conveyor 47 housed within the conduit M. A crusher member A3 is rigidly secured, to the inner side of the plate 35 and arches over the screw conveyor 65, cooperating therewith to reduce the large lumps of fuel to a size suitable for firing.

A plurality of transversely extending plates 49 are disposed in the water compartment is and are secured in any suitable manner at their respective upper and lower ends to the under side of the fuel bin floor It and the tender underframe I6, respectively. The plates 59 are recessed as at 59 to receive the trough If These plates serve as water baffles and also as additional supports for the trough l9 by means of the angles 51 which are securely attached to the plates 49 and fit closely against the sides of the trough l9.

Fuel from the fuel bin l2 enters the trough !9 through the opening 58 in the fuel bin floor It. A plurality of plates 52 normally form a closure for the open mouth trough E9 and are arranged to be successively slid forwardly to uncover successive portions of the opening l3. The plates 52 are mounted in the guides 53 which are secured by the welds 55 to the upper inner marginal sides of the trough and are coextensive therewith. A depending plate-like member 55, secured in any suitable manner, as by a weld, to the forward end of the cover 25 of the housing 23, forms a stop member for the slide plates 52.

The drive mechanism for the screw conveyors 45 and 45 includes a gear casing 56 secured within the housing a by bolts 5'! through the lugs 58 and 59 formed with the gear casing 55 and housing 23, respectively. The gear casing 56 is provided with a removable cover 69. A gear of, disposed within the gear casing 56, a keyed on a shaft 62 journaled in the bearing 63 and 55 formed with the gear casing 5t and cover 69, re

respectively. A drive connection of any suitable design is provided between the adjacent ends of the shaft 62 and the screw conveyor 45. A drive shaft 65 extends longitudinally through th trough It along the upper portion of the trough sidewall.

The drive shaft includes a rearward shaft portion 65 journaled in the bearings 51 and 63 of the gear casing 56 and cover 636, respectively, and a forward shaft portion 69 journaled in a bearing to which extends through an opening ii in the plate 35. The bearing H3 is rigidly secured to the plate 35 by means of bolts 12 extending through the plate 35 and flange 13 which is formed with the bearing to and fits closely against the plate 35. The drive shaft 65 also includes a tubular shaft member 14 coupled at its opposite ends with the forward shaft portion 69 and the rearward shaft portion 66 by the sleeves 75 and 76, respectively. A suitable number of longitudinally extending keys ll provide against relative rotation-between the sleeves l5 and ii and the adjacentends of the tubular shaft memher It and the shaft portions 66 and 69. Suitable gearing (not shown) is mounted on the part of the rearward shaft portion 66 Within the gear 56 and is in driving; engagement with the gear El for operating the screw conveyors t5 and ii.

A collar 18 is secured to the forward shaft portion 69 by means of a threaded pin 19 and fits closely against the rearward end of the bearing '59, thereby preventing forward movement of the shaft portion Gil. The sleeves 15 and 76 are normally prevented from moving longitudinally along the tubular shaft member M by cotter keys 89 and M, which are inserted through the shaft member M adjacent the ends of the sleeves l5 and E6, respectively.

With this coupling arrangement it will be seen that the gear casing 55, the tubular shaft member M and the bearing structure if! can be separately removed in a very simple and convenient manner. Thus, by removing the cotter pin 8| and sliding the sleeve 75 forwardly along the tubular shaft member M, the gear casing 55 may be removed; by withdrawing the cotter pin 89 and sliding the sleeve 75 rearwardly along the tubular shaft member It, the bearing structure is may be removed; and by removing both cotter pins so and 8! and sliding the sleeves 75 and 16 over the tubular shaft member 74, the latter may be removed without disturbing the bearing structure Ill or the gear casing 55.

One end of a drive shaft 82 leading from the stoker engine (not shown) is mounted in a bear- 83 formed with the sprocket casing 84. The s rocket casing 84'! is rigidly secured to the plate as by bolts 85, and is offset from the bearing structure l0. A sprocket 88 is mounted on the forward end of the shaft portion 69 and a second sprocket 8'! is mounted on the rearward portion of the drive shaft 82, and a sprocket chain 88 passing over the sprockets ilfiand 81 provides a drive connection between the shaft 32 and shaft portion 69.

With a drive arrangement such as that described, the drive shaft 65 can be disposed within a trough of usual width and the drive connection between the shaft leading from the stoker engine and the shaft leading back to the gearing at the rear of the trough does not interfere with the enlarged universal connection between the Stoker conduits at the forward end of the tender.

The tender deck or shoveling platform 89 is raised above the level of "the :fuelibi-n floor I4 so that the top-surface thereof ;is :flush with :the top surface of-the flanges 20 and it of :the trough I9. The shoveling :Platformf'BQ cutback or recessed, as at 90, to fit around the trough flanges 20 and 21. Rigidly'securedto the underside of the shoveling platform -89 and in alignment with the guides '53 are the guides "III in which the foremost of the slide plates .52 can slide beneath the shoveling platform .89. The rearward end-of the shoveling platform :89 is provided with a centrally disposed recess 92 arranged :to register with the opening .93 in the rearward portion .of' the foremost slide plate 52 when it is drawn forwardly beneath the shoveling platform 89. The recess 92 thus provides for access to the slide plate when it is beneath the platform 89, by permitting insertion of a hook therethrough into the opening 93 of theslide plate.

Lubricant is supplied to the gear casing 56 by a supply pipe 94 extending rearwardly from the forward end of the tender through the trough I9 at that side thereof opposite the drive shaft 65. The pipe 94 rests loosely in a casing 95 formed in any suitable maner, as by an angle iron rigidly secured to the inner surface of the trough side wall. The forward end of the pipe 94 extends through the plate 35 and turns laterally, opening upwardly at a point just below an opening 95 in, the shoveling platform 89.

The tender is provided with a novel underframe I of the water-bottom type preferably formed of a one-piece casting. The underframe I0 comprises the side sills I00 and IOI, the end sills I02 and I03, a substantially horizontal bottom web I04, and an upper web I provided with a plurality of openings I06 communicating with the water compartment I3 permitting the interior of the underframe III to be used as additional water carrying space. A pair of truss members or center sills I01 and I08extend longitudinally within the underframe from one end sill to the other and vertically from the bottom web I04 to the upper web I05. The bottom web I04 is provided at each side of the bolster structures I99 and III] with the upwardly extending depressions I II and H2, respectively, serving to accommodate the truck wheels.

The upper web I05 extends upwardly from each end sill and also from each side sill in the form of an upwardly bowed web. In such a construction, the vertical height of the truss members or centersills I01 and I08 is increased, providin a structure of increased strength and permitting the other parts of the underframe such as the side sills, bottom and upper webs I04 and I05 '00 be made lighter. By having the upper web bowed, the lower web may be maintained substantially horizontal thereby leaving the underside of the lower web free for the various tender appliances. In such constructions where the strengthening members depend from the underside of the lower web, they cannot extend the entire length of the tender because of the bolsters for the trucks.

In the present construction however, the center sills I07 and I08 extend the entire length of the underframe, and their increased. height made possible by the bowed construction of the upper web I04, give added strength to the underframe. This added strength is obtained without decreasing the water carrying capacity of the tender and without obstructing the under side of the lower web I94.

' I..c'laim:

1.: Irratender having a fuel compartment and a watercomp'artment, a .floor'forlsaidifuel compartment, said water compartment extending beneath said floor, said floor having :arlongitu'dinally elongated centrally disposed opening, a :stoker trough arranged to receive fuel from said bin, said trough having flaterally projecting flanges overlap-ping saidfloor adjacent the marginal sides of .theopening 1therein,1a screw conveyor mounted ingsaidtrough, ah'ousingiat the rear. of and communicating withv said. trough, said housing having .an. outwardly .extending "flange overlapping said floor. adjacent the. marginal edges of the opening therein, the upper end of said housing opening to said fuel bin, a removable cover for said last named opening, and drive mechanism in said housing operatively connected with said screw conveyor, the outer surface of said trough and said housing contacting the water in said water compartment.

2. In atender having a fuel compartment, a floor for said fuel compartment, said floor having a longitudinally elongated centrally disposed opening, a stoker trough arranged to receive fuel from said bin through said opening, a screw conveyor mounted in said trough, a housing at the rear of and communicating with said trough, the upper end of said housing opening to said fuel bin and having an outwardly extending flange overlapping said floor adjacent the marginal edges of the opening therein, and drive mechanism in said housing operatively connected with said screw conveyor, said drive mechanism bein removable from said housing through its open upper end into said fuel compartment.

3. In a tender having a fuel compartment, a floor for said fuel compartment, said floor having a longitudinally elongated centrally disposed opening, a stoker trough arranged to receive fuel from; said bin, said trough having laterally projecting flanges overlapping said floor adjacent the marginal sides of the opening therein, a screw conveyor mounted in said trough, a housing at the rear of and communicating with said trough, said housing having an outwardly extending flange overlapping said floor adjacent the marginal edges of the opening therein, the upper end of said housing opening to said fuel bin, and drive mechanism in said housing operatively connected with said screw conveyor.

4. In a tender having a fuel bin, a stoker trough arranged to receive fuel from said bin, said trough being generally V-shaped in cross section, a screw conveyor in the lower restricted portion of said trough, drive mechanism at the rear of said trough operatively connected with said screw conveyor, and a drive shaft within and at one side of said trough above the plane of the upper peripheral edge of said screw conveyor extending forwardly from said drive mechanism through the forward end of said trough.

5. In a tender having a fuel bin, an upwardly flaring stoker trough arranged to receive fuel from said bin, a screw conveyor in the lower portion of said trough, drive mechanism at the rear of said trough operatively connected with said screw conveyor, a tubular member communicating with and extending forwardly from the forward end of said trough, said tubular member being in axial alinem-ent with said screw conveyor and having a spherical enlarged forward portion and a restricted rearward portion, and a drive shaft within and at one side of said trough above the plane of the upper peripheral edge of said screw conveyor extending forwardly from said drive mechanism through the forward end of said trough, the projecting portion of said shaft being at oneside of and above the restricted portion of said tubular member.

6. In a tender having a fuel bin, an upwardly flaring stoker'trough arranged to receive fuel from said bin, a screw conveyor in the lower portion of said trough, drive mechanism at the rear of said trough operatively connected with said screw conveyor, a tubular member communicating with and extending forwardly from the forward end of said trough, said tubular member being in axial alinement with said screw conveyor and having a spherical enlarged forward portion and a restricted rearward portion, a drive shaft within and at one side of said trough above the plane of the upper peripheral edge of said screw conveyor extending forwardly from said drive mechanism through the forward end of said trough, the projecting portion of said shaft being at one side of and above the restricted portion of said tubular member and terminating short of the enlarged portion thereof, a second shaft offset laterally from and extending forwardly from the front end of said first'named shaft, and a drive connection between the adjacent oifset ends of said shafts.

FRANK P. ROESCH.

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