US2003878A - Mine car - Google Patents

Description

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Patented June 4, 1935 N Y' UNITED STATES MINE CAR Clarence P. DanicLBristol, Va.

Application August 27,

10 Claims.

This invention relates to mine cars and one object of the invention is to provide a car of this typehaving an improved frame construction and improved means for mounting the wheels.

Another object of the invention is to so form the body of the car that it will have a large carrying capacity and so mount the wheels that the body will be slung very low thereby causing the load to be well balanced and danger of a car turning over eliminated.

Another objectof the invention is to permit the wheels tobe shielded and coal dust prevented from sifting downwardly into journal boxes in which axles of the wheels are rotatably mounted and to so mount the shields for the wheels thatv they will not materially reduce the capacity of the car. Y 1- Another object of .the invention is to provide the car with an improved type of draw bar and prevent a car from beingdamaged by the force of blows received when cars are lcoupled or damagedby strain exerted longitudinally when a train of carsis started and in motion.

.Another object is to permit a loaded car to be easily dumped and completely emptied.

.The invention is illustrated in the accompanying drawings wherein:

Figure 1 is a side elevationl constructed in accordance with the invention. Figure 2 is a bottom plan view of the car. Figure 3 is a view of the rear. end of the car. Figure 4 is a sectional view taken transversely through the car along the line 4 4 of Figure 2.

Figure 5 is a sectional view' taken vertically through one end of the car along the line 5-5 of Figure 4.

Figure 6 is a sectional view taken longitudinally through the car along the line 6-6 of Figure 2.

Figure 7 is a sectional view illustrating the manner of assembling the drawhead and its spring.

Figure 8 is a transverse section through the drawhead taken along the line 8-8 of Figure 6. Figure 9 is a side elevation of the drawhead. Figure 10 is 'a bottom plan view thereof. Figure 11 is a front `elevation of the drawhead. Figure'12 is a side elevation of a modified form of 'car constructed in accordanceA with this invention.

Figure 13 is a bottom plan view thereof.

Figure 14 is a rear elevation of the modied form of car.

Figure 15 is a transy arse section taken along the line I5-I5 of Figure 13.

Figure 16 is a view through an end portion of 1931,' serial No. 559,785

the car body taken along the line I6-I6 of Figure 15. .i

Figure 17 is a section taken longitudinally through the modied form of car along the line II-II of Figure 13.

Figure 18 is an enlarged sectional view ing the mounting for the car wheels;

In the accompanying drawings two specific .embodiments of the invention have been illustrated, one being vshown in Figures 1 to 6, inclusive, and the other in Figures 12 through 17.

Thepcar illustrated in Figures 1 through 6 has a bottom I, side walls 2 and end walls 3 and 4 at its front and rear, the front wall constituting a gate and being adapted to be swung upwardly to an open position when the car is to be dumped. The bottom of this car consists of an intermediate section 5 and side sections 6 which are formed of strong metal and from'an inspection of Figure 4 it will be seen that the intermediate section is disposed in a lower plane than the side section and connected therewith by angle bars 'l which are Z-shaped in cross section and have their longitudinally extending anges firmly riveted to side edge portions of the sections 5 and 6. The outer side edge portions of the sections 6 are secured to the side walls 2 byrrivets engaged through iianges extending along the illustraty lower edges of -the side walls. It will thus kbe seen that side portions of the bottom are directly secured to the side walls whereas the intermediate section is disposed in a lower plane than the side sections and together ywith the bars 1 dene a trough 9 extending longitudinally of the car intermediate the width` thereof. Stringers 'I0 formed'of strong metal bars extend beneath the.

car bottom transversely thereof with its intermediate Y secured against the bottom 5 of the trough. At opposite sides' of the trough each cross bar or stringer extends upwardly at an incline asV shown at I2 and is then bent to form portions I3 which are firmly rivetedagainst the side portions 6 of the car bottom. `The ends of the bar are bent upwardly to form arms I4 which extend to approximately the upperedges vof the side wall and are rmly riveted against these walls. By this arrangementl the walls and the bottom of the car will be firmly held in engagement with each other and braced so that there will be no danger of the walls or bottom giving awayswhen subjected to strain.- The trough will also be reinforced and the rivets prevented from being torn which the car is loaded.

portion II riveted or otherwise firmly w The wheels l5 are of the type usually used for mine cars and these wheels are located at opposite sides of the trough as shown in Figure 2 with the wheels at each side spaced from each other longitudinally of the car and disposed between the intermediate stringers as clearly shown in this view. Hanger bars it which are formed of angle metal extend longitudinally of the car in spaced relation to the bars l and between the bars i and i6 the side sections t of the car bottom are formed with openings il through which project the upper portion of the wheels when the wheels are set in place and their stub axles i8 engaged in journal boxes or bearings l@ bolted or otherwise firmly secured against the up per flanges of the angle bars l and i 6. In view of the fact that the upper flanges of the bars 'i and l face each other and have side edges extending ush with side edges of the openings i?, the bottom plates 6 of the car will be greatly reinforced. The vertical webs of these bars also serve as closures for ends of the bearings le, as shown in Figures 3 and 4, and also as bracing elements which prevent the bearings from being torn loose by strain exerted transversely of the car. Referring to Figure 2, it will be seen that when the bearings are applied, they t between blocks itin, and la carried by the upper horizontal anges of the angle bars and therefore the bearings can be very easily set accurately in opposed relation to each other and also the bearings will be braced against strain longitudinally of the car and securing bolts which hold the bearings in place prevented from being sheared on when starting or stopping a loaded car. It should be noted that the wheels are of such size that when their axles are engaged in the boxes le their upper portions project a short distance above the side sections of the car bottom and their lower portions project downwardly only a short distance below the bottom of the trough 9. Therefore, this car will set low upon a track and when the car is loaded the weight of its contents will be so distributed the car will be evenly balanced and will not be liable to turn over. Hoods 2e are disposed over the upper portions of the wheel within the car body and have lower marginal anges which are riveted or otherwise rrnly secured against the bottom sections 5 about the opening l1. Therefore,- the wheel will be shielded and also coal dust and other fine material will be prevented from passing downwardly through the openings il' and becoming wasted or working into the journal boxes.

In order to close the ends of the trough there has been provided Wooden ller blocks 2i and 22 which t snugly within the end portions of the trough and project outwardly therefrom to form bumpers which are reinforced at their outer ends by shoes 23. The inner end of these filler blocks bearagainst abutments 24 formed of angle metal and extending transversely in the trough, and side edge portions of the fillers rest upon the inwardly directed lower flanges of the angle bars l as shown in Figure 2. Therefore, these ller blocks or bumpers will be well supported and rmly held in place. The front ller or bumper has its upper face covered by'a sheathing 25 which projects inwardly beyond this bumper and its abutment and extends downwardly at an incline as shown in Figure 6 to form a skirt 26 firmly secured against the bottom of the trough and serving to permit the coal or other contents of the car to move easily out of the front end of the trough aooaere when the end gate i is open and the car tilted to a dumping position.

In order that the car may be coupled with others in train formation and heavily loaded cars pulled along a track without being damaged by longitudinal strain there has been provided a draw bar 2l which extends longitudinally of the trough intermediate the width thereof and is riveted firmly into place by certain of the rivets used to secure the stringere lil. The end portions 23 and 2S extend upwardly at an incline as shown in Figure 6 and then horizontally over the iiller blocks or bumpers, the end portion 28 being secured upon a support d and projecting outwardly through an opening 3l formed intermediate the width of the gate d and formed near its end with an opening to receive a pin 32 which extends downwardly through the bumper and is adapted to engage through a coupler of the link type by means of which two ears are to be connected.

At the rear of the car is mounted a coupler head having a housing 3G the shank 35 of which rests upon the horizontally disposed portion of the end Eil orr the draw bar where it is riveted or otherwise firmly secured. Bolts or equivalent fasteners are also passed through anges extending along opposite sides of the housing 3d to firmly secure the housing in place upon the bumper or lier blocks 22. lThe extreme rear end of the drawbar is bent upwardly as shown at 3l to engage the inner wall 38 of the housing and thereby relieve the fasteners for the housing from strain. A shackle 35i which is substantially U-shaped but disposed horizontally extends longitudinally of the housing 3d with its ,upper arm 5G engaged through an opening [il formed in the upper portion of the outer wall l2 of this housing. lThe lower arm i3 extends outwardly beneath. the outer wall and a strong coiled spring Lili is coniined between the front or outer wall l2 and the bridge l5 of the shackle, thereby yieldably resisting outward movement of this shackle. Ifhis shackle carries a coupler engaging pin l5 which engages through openings l? formed in its arm and the lower portion of the coupling pin' is received in an enlarged opening 158 formed in the outer portion of the rear bumper. Since .the opening 38 is of greater dimensions than the diameter of the coupling pin the shackle may have longitudinal movement when a train is started or a heavy load is being pulled thereby compensating for strain exerted and preventing danger of breakage.

'I'he rear wall 3 is rigidly secured to the side walls and reinforced along its upper edge by a coping It@ and braced by vertically extending bars 56 but the end Wall at the front of the car is to serve as an end gate and move to an open position when the car is to be dumped. This end gate is reinforced by upper and lower bracing strips 5| and 52 formed of angle metal and by vertically extending bracing strips 53 and 54 which are secured against the inner face of the gate, the upper portion of the bar or strip 54 being extended outwardly and then bent to form a bill 55, or door hook. In order to mount this end gate for movement into and. out of a closed position there has been provided side plates or arms 56 which arer substantially triangular and tapered towards their rear ends. The ends of these arms are pivotally connected with brackets 5l rmly secured against the side walls of the car and along their upper marginal portion the arms or plates 56 are bent outwardly and downwardly to form elongated hooks or anges -58 adapted to overlap the upper edges of the car walls. Due to the provision of the hook 56 these end gates may be easily swungj' upwardly to an open position so that the contents of the car may pass outwardly through this end of the car when the car is tilted to a dumping position.

I have therefore provided a mine car which may carry a heavy load as it is very strongly built and further provided a car of this type in which only a very small portion of the interior of the car will be obstructed by the wheel hoods or shields. It should also be noted that the car is soconstructed thaty 4when loaded the weight will be so distributed inithe car that the car will be very well balanced.

In the form of mine car illustrated in Figures 12 through 17 the bottom 59 of the car is formed with openings 60 spaced from each other transversely of the car. Certain of the cross bars 6I which serve as braces for the bottom of the car extend across the car bottom and ends of the openings 60 and one of these bracing bars extend in bridging relation to the openings inter-` mediate their ends. Angle bars62 extend longitudinally of the car bottom at opposite sides of the openings 60 and to these angle bars are secured other angle bars 63 which together with the bars 64 form side and end walls for boxes in which the wheels 65 are located.- These wheels are located near the ends of the boxes and have their stub axles rotatably mounted in journaled boxes 68 secured against the inwardly extending upper flanges of the angle bars 63 and in order to shield the wheel by enclosing their upper portions there has been provided hoods 61 which are riveted or otherwise rmly secured against the upper` flanges of the bars 63 and 64. Plates 68 extend between the hoods and have their marginal portions riveted tothe hood and the upper flanges of the bar 63. Therefore, the boxes in which the wheels are located will be entirely closed at their top and along their sides'and ends. 'I'his construction causes the wheels to be so located that they only project downwardly a short distance below the car and also cause the load to be so distributed that an under slung effect will be obtained.

The bracing bars or stringers 6| donot have their end portions extended upwardly and secured against outer faces of the side walls of the bar. Therefore, the side walls 69 have been braced at their ends by corner strips 10 formedof strong metal and riveted to the side walls and end walls 1I. Intermediate portions of the side walls are braced against outward lstrain lby gussets 12 which extend transversely of the car. These gussets are triangular in shape and each. has a fian'ge 13 at its wide outer end riveted against a side wall and its inner bottom portion extending in overlying relation to a wheel box transversely thereof and formed Vwith a side flange 14 riveted to thev` upper ange of an angle bar 64. A draft bar 15 extends longitudinally of the car intermediate the width thereof and this draft bar-has its end portion .bent upwardly at an inoline as shown at 16 and extending in overlying relation to filler lblocks or bumpers 11 corresponding to the blocks 2l and 22. Abutments 18 formed of strips of angle metal are provided for the inner ends of the bumper blocks 11 and the outer ends of the bumper blocks are protected by shoes 19 crrespondingto the'shoes 23. There has also been provided a strip 80 carrying a. coupier pin 8| whichl extends downwardly through the outer ends of .the rear bumper bloc and at the rear end of the car there has been provided a draw head 82 of the same construction as that shown in Figure 1 and previously described in detail. Therefore, when a coupler 83 is engaged with the pins 8| and 84 cars may be coupled. in train formation and a train of heavily loaded cars drawn along a track without beingdamaged by longitudinal strain. y

The end walls 1| in this form of car are both rigidly secured to the side wallby being riveted to the corner strip .10 as this car is of the rotary dump type instead of angle metal are secured along upper edgesof the end walls in overlying relation thereto and in an end dump. Strips 85 of order to brace the end walls there has been provided vertically extending bracing strips 86 and the spirit of sacrificing any of the principles of the invention.

Having thus described the invention what is claimed is:

l. In a mine car, a body having a bottom provided With a longitudinally extending trough and side sections at opposite sides thereof, a draw bar extending longitudinally in said trough, a bumper at each end of said body extending into the body above the bottom thereof and overlapped by an gag-ing element carried by the bumper and overlapping end of the draw bar at the front end of said car, a-draw head at the rear of said car resting upon the bumper and secured to therear end of said draw bar, the last mentioned end of said draw bar being bent upwardly within the draw head to form an abutment, a shock absorber slidably mounted in saddraw head and yieldably held against outward slidingmmovement in normal contacting engagement with said abutment, and coupler engaging means carried by the shock absorber.

2. In a mine car, a body having a bottom provided with a longitudinally extending depressed trough and side sections at opposite sides thereof, a draw bar extending longitudinally in said trough, a bumper at each end of said car extending into the body above the bottom thereof and overlapped by y an endof said draw bar, a coupler engaging element carried by the bumper and overlapping end of the draw bar at the front end of said car, a draw head at the rear of said car resting upon the bumper and secured to thel carried by the outer portions of said arms andl loosely received/in anbpening formed in the outer portion of said bumper.

end of said draw bar, a 'coupler en- 3. In a mine car, a body having a bottom, a draw bar extending longitudinally in said body along the bottom thereof, a bumper at each end ot said car extending into the body above the bottom thereof and overlapped by an end of said draw bar, a coupler engaging element carried by the bumper and overlapping end or" the draw bar at one end of said car, a draw head at the other end of said body resting upon the bumper and secured to the corresponding end o1 said draw bar, thelast mentioned end of said draw bar being provided with an abutment within the draw head, a shock absorber slidably mounted in said draw head and yieldably held against outward sliding movement in normal contacting engagement with said abutment, and coupler engaging means carried by the shock absorber.

4. In a mine car, a body having a bottom, a draw bar extending longitudinally in said. body along the bottom, a bumper at each end of said car extending into the body above the bottom thereof and overlapped by an end of said draw bar, a coupler engaging element carried by the bumper and overlapping end of the draw bar at one end of said car, a draw head at the other end of said car resting upon the bumper and secured to the corresponding end of said draw bar, a member resting upon the bumper 'and slidably mounted in said draw head for movement longitudinally of the body and having upper and lower arms projecting outwardly from the draw head over the outer portion of said bumper, a spring in said draw head between said arms yieldably resisting outward movement of the said member, and a coupler engaging pin carried by the outer portions of said arms and loosely received in an opening formed in the outer portion of said bumper.

5. In a mine car, a body having a bottom in` cluding side sections and an intermediate section extending in a horizontal plane below the plane of the side sections, the side sections being each formed with openings spaced from each other longitudinally of the body, inner angle bars extending longitudinally of said body in a vertical plane and having lower anges secured to side edge portions of the intermediate section and outstanding upper anges secured against the under faces of the side sections between the openings and inner side edges of the side sections, said bars together with the intermediate section forming a depressed trough in the bottom of the body, outer angle bars extending longitudinally of the body under the side sections thereof and having inwardly extending upper iianges secured against under faces of the side sections with their free side edges bordering outer side edges of the openings, hoods over said openings having flanges resting upon the side sections of the bottom over upper flanges of the inner and outer angle bars, fasteners passing through the side sections and flanges of the hoods and angle bars, bearings secured against the under faces of the upper iianges of said angle bars and disposed in opposed relation to each other at opposite sides of the openings, and wheels having axles journaled in said bearings with upper portions of the wheels extending through the openings into the hoods and lower portions of the wheels extending downwardly a short distance below the trough.

6. 'Ihe structure of claim 5 together with bumper blocks in end portions of the trough ex tending the full width of .the trough and resting upon the inwardly extending lower flanges of the inner angle bars, a draft bar extending longitudinally in said trough upon the bottom thereof with its end portions overlapping the bumper blocks and secured thereto, and coupler engaging means associated with the bumper blocks and ends of said draft bar. v

7. The structure of claim 5 having the bearings removably secured by fasteners passing through upper flanges of the inner angle bars, and abutments carried by the said upper iianges of the inner angle bars and engaging ends of the bearings to dispose the bearings exactly opposite each other when applied and prevent strain upon the fasteners by shifting of the bearings longitudinally of the car body.

S. The structure of claim 5 in which the wheels have stub axles projecting from inner and outer sides thereof and rotatably received in the bearings.

9. The structure of claim 5 and stringers extending transversely of the body and having their intermediate portions secured flat against the under face of the intermediate bottom section for the full width thereof and other portions secur-d against under faces of the side bottom sections and overlapped by the outer angle bars.

10. In a mine car, in combination, side and end walls, side floor sections, an intermediate floor section below said side floor sections, center sills defining the intermediate floor section and connecting the side floor and intermediate oor sections, body bands on opposite sides of the transverse medial line of the body and embracing said side walls, sills and side and intermediate :door sections, a longitudinally disposed member beneath each side iioor section between and secured to said longitudinal body bands, bearings secured to said members and center sills and stub axles mounted in said bearings.

CLARENCE P. DANIEL.

CJI

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