US2063059A - Mine car - Google Patents

Description

Dec. 8, 1936. w. M. SHEEHAN I MINE CAR Filed April 27, 19-33 5 Sheets-Sheet l Wye/War W/fam /W. 5/766/767/7 &4,

w. M. SHEEHAN 2,063,059

MINE CAR Filed April 27, 1933 5 Sheets-Sheet 2 a {By Dec. 8, 1936. w. M. SHEEHAN 2,063,059

MINE CAR Filed Ap ril 27, 1935 s Sheets-Sheet 4 Af/orneu Dec. 8, 1936.

W. M. SHEEHAN MINE CAB Filed April 27, 19-35 5 Sheets-Sheet 5 INVENTOR M Patented Dec. 8, 1936 UNITED STATES PATET OFFICE MINE GAR Application April 27, 1933, Serial No. 668,258

24 Claims.

This invention relates to a vehicle for use in mine, quarry and similar service requiring transportation of rough bulk materials on tracks having sharp curves and sharply changing grades, and

particularly, where the vehicle is tilted or inverted in unloading.

Some of the features of the present invention are illustrated and claimed in my co-pending applications, Serial No. 594,687, filed February 23, 1932;

Serial No. 619,226, filed June 25, 1932, and Serial No. 622,927, filed July 16, 1932. The more general objects of this invention are attained and enumerated in the above-mentioned co-pending applications, reference to which is made in connection with the present invention.

The vehicle herein illustrated is intended primarily to be used in mining operations under con.- ditions such as exist in the anthracite regions of Pennsylvania where, due to certain unusual de- 2 sign restrictions, the floor lines and consequently the bumpers and draft attachments of mine cars now in use are located a substantial distance above the axles so that the cars have high centers of gravity.

The structure of the present invention embodies the same relatively high location of buffer and draft elements, but the fioor is placed close to the rail and arranged to permit dumping through an end door.

An object is to provide a car of the above type arranged for mounting upon stub axles, permitting a substantial portion of the floor to be disposed beneath the level of the axles without the necessity of providing axle pockets in the fioor.

Another object is to provide a more stable mounting of the vehicle upon its axles than has been heretofore known.

Still another object is to provide structure on the undersurface of the vehicle floor for co-operating with vehicle stop or positioning means.

Other objects will be apparent from examination of the accompanying drawings, in which Fig. 1 is a top view of a vehicle underframe illustrating the invention.

Figure. 2 is a side view of the same showing under-equipment.

Figure 3 is a detailed vertical longitudinal section taken on the line 3-3 of Figure 1.

Figure 4 is a vertical longitudinal section taken on the line 45 of Figure 1.

Figures 5, 6, and 12 are vertical transverse sections taken on the corresponding section lines of Figure 1.

Figures 7 and 8 are half end views of the underframe taken from the right and left-hand ends, respectively, of Figure 1.

Figure 9 is a vertical transverse sectional view taken on the line 99 of Figure 11.

Figure 10 is a detail horizontal section taken on the line. Ill-l0 of Figure 11.

Figure 11 is a side View of the underframe at one end and illustrating one of the draft hooks.

Figure 13 is a view similar to Figure 5 and illustrating a modification.

Figure 14 is a detail vertical longitudinal section taken on the line M-M of Figure 13.

Figure 15 is a detail horizontal section taken on the corresponding section line of Figure 13.

Figure 16 is an enlarged elevational view of the outer pedestal structure shown in Figure 1.

Figure 17 is a sectional View taken substantially on the line I'!ll of Figure 18 and showing the inner pedestal structure.

Figure 18 is a horizontal sectional view taken approximately on a line extending axially of the rear stub axle, the wheel, axle and journal boxes being shown in plan.

Figure 19 is a vertical transverse sectional view taken on the line I9 l9 of Figure 18.

Figure 20 is a detail vertical section taken on the line 2El20 of Figure 18.

Figures 21 and 22 are views corresponding to Figures 13 and 19, respectively, and illustrating another modification.

Figure 23 is a detail section taken on the line 2323 of Figure 21.

Figure 24. is a vertical transverse section taken on the line 24-24 of Figure 1.

Figure 25 is a horizontal section taken on the line 25-25 of Figure 24 and shows a plan View of one of the inner pedestal legs.

Figure 26 is a top View of another form of the invention.

Figure 2'7 is a side view of the same.

Figure 28 is a partial longitudinal vertical section taken on the line 28-28 of Figure 26.

Figure 29 is a half elevation showing the left end of the structure in Figure 26.

Figure 30 is a half elevation showing the right end of Figure 26.

Figure 31 is a vertical transverse section taken on the corresponding section line of Figure 26.

The entire vehicle underframe is preferably formed of an integral casting including, as illustrated in Figures 1 to 12, 16 to 20, and 24 and 25, a continuous seamless floor, with side portions I extending substantially horizontally above the forward and rear wheels 2 and 3, an intermediate portion 4 disposed entirely beneath the level of stub axles 5 of the rear wheels 3, and an inclined portion 6 extending continuously upwardly from a line between the pairs of wheels 2 and 3 to the upper surface of the forward end sill 1. At the rear end, the flooring extends sharply upwardly at 8 and merges with the upper surface of the end sill S, the sill including a vertical wall portion 9a depending to the level of flooring portion 4 and connected therewith by horizontal perforated web section I. The rear extremity of portion 4 slopes slightly upwardly and rearwardly as at l2, to clear the roadbed when the vehicle moves onto a sharp upward grade. While the ends of the car are conveniently described, respectively, as forward and rear, it will be understood that the vehicle may be operated in either direction.

Projecting longitudinally of the end sills 1 and 9 are vertically spaced horizontal flanges 3 and 4 mounting buffer devices l5 and central draft hooks I6. Any other suitable buffer or draft mechanism may be provided, if desired, The buffer flanges extend to the sides of the underframe and at the outer extremities are braced by vertical webs |3a and l3b, forming jacking projections to facilitate replacing the car on the tracks as after a derailment.

Extending around three sides of the underframe above the end sill 9 and elevated side portions of the flooring are vertical flanges l1 and I8 for mounting superstructure side walls l9 and end wall 26. At the end of the car opposite wall 28, the body is open and a swinging dumping door (not shown) will preferably be provided.

Between the elevated side portions and the intermediate portions 4 and 6, the flooring is inclined generally downwardly and inwardly, as at 2|. The side edges of flooring 6 diverge forwardly as indicated at 22, due to the intersection of the upwardly inclined floor web with the upwardly and outwardly inclined side webs 22. This divergence facilitates dumping. Extending longitudinally along the lower surface of inclined portion 6 are braces 23, preferably of box section, and a central inverted T-shaped rib 24 reinforcing the floor and forward end sill Flooring portion 8 and web 9a at the rear end are braced by a central flanged web 1|.

Each pair of buffer flanges |3 and I4 is braced by short vertical ribs I0 extending between the same, and the buffer caps l5 are recessed, as at 25, to clear these ribs. These flanges are further reinforced by diagonal ribs |4a alined with vertical parts of the floor and flanged corner webs |4b extending inwardly of the end sills in line with webs |3b reinforcing the jacking projections.

Depending from the side edges of the underframe are the outer pedestals 26 and 21, having pedestal jaws 26a and 21a and spring seating projections 28 on the undersurface of the top bars 29. Bars 30 are secured to these pedestal jaws beneath the journal boxes 3| and serve as pedestal binders and to prevent disengagement of the outer boxes and pedestals when the vehicle is tilted in dumping. The outer pedestals are braced by inner ribs 32 and 33 and outer ribs 32a and 33a.

Projecting from the inwardly and downwardly inclined portions 2| of the flooring are inner pedestals 34 and 35 having pedestal jaws 34a and 35a, respectively, for the stub axles (see Figure 17). The rear pedestals 35 are braced by ribs 31 and 31a and horizontal webs 36 and 36a. Forward inner pedestals 34 are braced by similar ribs 54 and 54a and u per and lower horizontal webs 68 and 68a. Ribs 31a and 54a are themselves braced by vertical longitudinally extending ribs 31b and 54b.

The upper webs 36 and 68 extend at both sides of the inner pedestals to form spring seats 36b and 68b, the construction, in this respect, of the rear inner pedestal 35 being illustrated in Figures 17 to 20 and 24 and 25. Each inner journal box 38 has laterally projecting cup-like elements 39 forming spring seats for receiving the coil springs40 supporting the pedestals from the boxes. It will be seen that the box spring seats 39 extend beneath portions of the pedestal jaws so that these jaws must be shortened to permit lrelative vertical movement of the boxes and pedestals under the spring action.

The outer coil springs 4| (Figure 16) are mounted on top of the corresponding journal boxes 3| and. are seated against the undersurface of the top crossbars 29 of the pedestals. The arrangement of the inner and outer springs 48 and 4| provides, in effect, three point mounting of the body upon the supporting axles, which produces greater stability than is the case where all springs are carried on top of the journal boxes.

The forward inner pedestals 34 depend beneath the inclined intermediate portion 6 of the floor, and are braced transversely by means of a beamlike bracket 42 on the under-surface oi the inclined part of the floor (Figures 1 and 4). The bracket 42 is braced on one side by a diagonal flanged rib 43, and on the other side is recessed, as at 42a, and serves as a body abutment for a stop device such as is commonly used to position the vehicle upon an elevator and also to maintain the car immobile during loading. Webs 69 depending from the edges of portion 6 of the flooring merge with the ends of bracket 42 and form backings for pedestals 34. In alinement with ribs 54 and extending inwardly of webs 69 a short distance are webs 69a which are connected to bracket 42 by horizontal web sections 1|] (Figure 4).

Flanged corner webs |4b are depressed inwardly of the wall mounting webs I1 and are formed integral with book elements 45 for attachment of chains, cables, or ropes in pulling the car in a train. The structure of these hook elements is shown in greater detail in Figures 9, 10, and 11, from which it will be seen that the hooks project sidewardly of the vehicle body a substantially less distance than would be the case if they were secured to the outside of the body in the usual manner and they are in substantial alinement with the side posts S.

The vehicle wheels are preferably of the anti- I friction bearing type, and a nut 46 and washer 46a are provided on the inner extremity of each stub axle 5 for adjusting the bearings (Figure 5). A sleeve 41 extends from the washer 46a through the inner journal box to the wheel hub.

In Figure 13 is shown a part of a mine car underframe arranged for operation on tracks of narrower gauge than that in the preceding figures with minimum decrease in loading capacity. The inclined portion 48 of the flooring is provided with a pocket 49 for accommodating the adjusting nut 50. The details of the wheel mounting, including the adjusting nut 58 and sleeve 5|, are the same as in the previous figures.

With reference to Figures 17 to 20 in particular, it will be seen that the extension of the inner journal box 38 beneath the lower extremity of the pedestal jaws prevents the use of the usual tie bar connecting the jaws. For preventing excessive relative vertical movement and disengagement of the pedestal and journal box, each inner box spring seat 39 (Figures 18, 19, and 20) is provided with a lug 52 and a bolt element 53 with a portion 53a extending between the adjacent pedestal bracing ribs 35 and 36a. Thus, when the vehicle is inverted in dumping, bolt 53w will engage rib 36a. The bolt 53 is manually removable to permit disassembly of the framing from the wheels and axles for making repairs.

If desired, the stop arrangement on the inner journal boxes and pedestals may be reversed, as in Figures 21 to 23, in which each journal box spring seat 55 is provided with a flange 56 below which extends the enlarged head portion of bolt element 58 secured in a web 59, forming part of the pedestal jaw 60, projecting from the flooring 61. I

The vehicle is provided with suitable brakes (see Figures 1 and 2) including links 6| operated by means of shaft 52 mounted in brackets 63, depending from the undersurface of the flooring and extending through openings 68 in the end sill, and a handle 64. A similar braking arrangement is illustrated in my co-pending application, Serial No. 619,226, mentioned above. Other braking equipment may be used if desired and other suitable auxiliary equipment provided.

In the modification in Figures 26 to 31, the underframe is, in general, similar to that in the first form described but is arranged for a through forward axle 10, extending beneath the inclined portion H of the flooring, instead of the forward stub axles of the previous forms. The outer forward pedestals are eliminated, the axle 13 with its journal box (not shown) being mounted between jaws l2a of inside pedestals l2. These pedestal jaws are braced on the outside by depending ribs 13 and M and horizontal webs l5 and 15, the former having spring seating projections l1, and on the inside by vertical ribs [3 and H3 alined with the lower portions of ribs 73 and M, respectively, and horizontal webs alined with outside horizontal webs 16. Vertical webs 81 depending from the edges of the inclined flooring H extend longitudinally from the pedestal aws.

The function of the stop bracket 42 shown in the previous forms is served by the axle l0 and this bracket is omitted. The buffer flanges B2 are extended to the sides of the underframe and at the extremities suitably braced by web sections 83 and 84 to constitute jacking projections.

The utilization of the above described features provides a large increase in capacity over cars new in use, and lowers the center of gravity which insures greater stability while in transit and permits coupling and operation with existing high center of gravity equipment. The car bottom is so constructed as to constitute a unitary and homogeneous beam structure in lateral, longitudinal and vertical planes.

The invention is not limited to the exact de tails of the embodiments shown, and these may be varied as will occur to those skilled in the art to which the invention pertains, and exclusive use of all such modifications as come within the scope of the appended claims is contemplated.

What is claimed is:

1. In a vehicle of the class described, flooring including an upwardly disposed portion and a rigid beam-like member extending from side to side of said portion and reinforcing the same and serving as an abutment for co-operating with a vehicle stop or positioning device.

2. In a vehicle of the class described, upwardly and outwardly extending flooring including laterally spaced parts at different levels, a wheel and an axle, and pedestals projecting from said parts and having spring seats disalined longitudinally and transversely of the vehicle and forming a three-point support for the flooring adjacent each wheel.

3. In a vehicle of the class described, a supporting wheel and axle, underframing including a pedestal disposed at each side of said wheel, the inner of said pedestals having a frame supporting element at a lower level than the corresponding element of the other pedestal, and said flooring sloping downwardly and inwardly over said inner pedestal.

4. In a vehicle of the class described, supporting wheels and stub axles, flooring with side parts above said wheels, an intermediate part beneath the level of said axles, and downwardly and inwardly sloping portions between said side and intermediate parts pedestals depending from said side parts outside said wheels, and other pedestals on said sloping portions inside said wheels.

5. In a vehicle of the class described, wheels and axles, underframing, pedestals depending from said underframing at each side of each of said wheels, journal boxes in said pedestals, and springs supporting said pedestals from said boxes, the outer of said boxes having spring seats on their tops and the inner of said boxes having spring seats beneath their top portions.

6. In a vehicle of the class described, supporting wheels and axles, flooring, pedestals with spring seats at the sides of each of said wheels, the inner of said seats being lower than the outer and said flooring sloping downwardly and inwardly over said inner seats, journal boxes carried on said axles in said pedestals, the outer boxes having spring seats on their tops and the inner boxes having spring seats projecting laterally therefrom a substantial distance beneath the tops thereof, and supporting springs between the respective pedestal and journal box seats.

'7. In a vehicle of the class described, a supporting wheel and stub axle, a pedestal on each side of said wheel, and journal boxes in said pedestals and mounted on said axle, the outer box having a seat on top for a body supporting spring and the inner box having spring seats projecting laterally from the lower portion thereof, providing a three point support for the vehicle body.

8. In a vehicle of the class described, load supporting wheels and stub axles, anti-friction bearings in said wheels, bearing adjusting devices on said axles inside said wheels, and flooring with side parts above said wheels, a lower intermediate part and downwardly disposed portions between said side and intermediate parts and recessed to clear said adjusting devices.

9. In a vehicle of the class described, flooring, pedestal structure including a pair of vertically spaced bracing ribs, one of said ribs constituting a spring seat, a journal box in said pedestal, and an element on said journal box projecting between said pair of ribs for limiting relative vertical movement of said pedestal and said box.

10. In a vehicle of the class described, a pedestal including laterally projecting spring seating means, a journal box in said pedestal having spring seating means beneath said pedestal means, and an abutment on said pedestal beneath said pedestal seating means, said box seating means having an element co-operating with said abutment to limit relative vertical movement of said box and pedestal.

11. In a vehicle of the class described, flooring, supporting wheels, pedestals on said flooring at each side of said wheels, journal boxes in said pedestals, and means limiting the relative vertical movement of said flooring and said boxes comprising members connecting the lower portions of the jaws of certain of said pedestals and exwalls.

14. In a vehicle of the class described, end structure including vertically spaced walls, a bracing rib between said walls, and a buffer cap extending between said walls and recessed to clear said rib.

15. In a vehicle of the class described, an integral underframe structure including flooring having offset bracing portions, an end member with vertically spaced walls for receiving a buffer, and a rib bracing one of said walls and in alinement with said portions.

16. In a vehicle of the class described, axles, an end sill, and buffer mounting flanges projecting from said end sill, said flanges extending beyond their buffer mounting parts to form rigid structure with a downwardly facing jack seating surface.

1'7. In a vehicle of the class described, an end sill with elements for mounting a yielding buffer device, and jacking projections on said end sill and said elements, said projections having downwardly facing surfaces arranged for stably seating jacking means.

18. In a vehicle of the class described, axles, flooring beneath the level of said axles and buifer mounting elements above the level of said axles, portions of said elements constituting jacking projections, and having a downwardly facing surface arranged for stably seating jacking means.

19. In a vehicle of the class described, a rigid floor forming web, a wheel and an axle, and spring structure providing a three-point support for said web over said axle at opposite sides of and adjacent to said wheel.

20. In a vehicle of the class described, a rigid floor forming web, a wheel and an individual stub axle, and spring structure providing support for said web at points spaced transversely of said axle at one end thereof and over the axis of said axle at the other end thereof.

21. In a vehicle of the class described, a side wall having restricted end portions offset inwardly from the major portion of the wall, and draft elements exterior of said wall adjacent to said offset portions.

22. In a vehicle of the class described, a side wall, posts on the exterior thereof, and draft elements at the end of said wall in substantial alinernent with said posts, the adjacent portions of said wall being offset inwardly to accommodate said draft elements.

23. In a vehicle of the class described, underframing including an outwardly and upwardly extending floor forming web at the side of the vehicle having members spaced transversely of the vehicle and each member including downwardly facing structure for seating springs supporting the underframing from the vehicle axle, said structure in one member being at a different level and at a different distance from the vertical plane of the axle axis than said structure in the other member.

24. In a vehicle of the class described, underframing including a floor side portion extending upwardly and outwardly at the side of the vehicle, an axle and wheel, a pair of downwardly facing spring seats located at one level at one side of said wheel and a single downwardly facing spring seat located at another level at the other side of said wheel.

WILLIAM M. SHEEHAN.

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