US1872451A - Dump car - Google Patents

Description

Aug.. 16,1932. D. HINDAHL j 1,872,451

DUMP CAR Filed June 6, 1930 2 Sheets-Sheet l @QOQ GO @000 Aug. 16, 1932. H HL DUMP CAR Filed June 6, 1930 2 Sheets-Sheet 2 I :iiizq h H." n

inventor Patented Aug. 16, 1932 uni-Tao STATES DAV-ID samnennjor ntense, IL LI NoIs, ASSIGNOR To norm-m BALLAST. can P-ANY, or -onrcnco, rumors, A conronerron or mama." i

DUMP CAR i a i fi e 9 .0: Se. v e l -v M l:

This invention relates to an improved construction for ballast cars andhasreference more particularly to a dum car, adapted for carrying materials and or discharging the same either between the rails or outside the rails.

In railroad ballast work there is a great advantage in dumping the ballast material at the proper point with respect to the rails in a manner to prevent covering the latter. This results from the factthat in service'the car is moved along the track and simultanee ously deposits the ballast between the rails and if the material was allowedto flood the rails, derailing of the car and other serious damage would result, the specific embodinient herein disclosed this is accomplished by employing pivotally mountedextensions forming a continuation of the'inner hopper side walls and which are caused to swing open as the hopper doors open but which remain in contact with the "doors sufliciently to prevent dischargeof the'imaterial until the free edge of the door has been lowered to a predetremined point. It is also commercially desirable at times to employ the type of car described for transporting coal and for this purpose the feature set out above is not important butit is necessary to have a discharge opening for the coal of maximum size.

' properly depositing ballast material It is therefore one of the primary objects of the present invention to provide a dump car embodying novel features of construction whereby the same will be equally eiiicient in with respect to the rails and also in discharging coal and the like,

A yet further object of the invention is to provide a dump car in which the center sill structure of the car is provided with means cooperating with the free edge of the down- 7 wardly swinging hopper doors in such a manner as to prevent the discharge of material from the hoppers until the doorshave reached a predetermined point.

Another object of the present invention is to provide a dump car having hopper doors which will properly deposit the ballast mater al along th c n o th ro e a which-jwill also embody novel features for increasing'tfhesize of the openin between the. lowerpprtion of the hopper doors and thefcentral shedding surfaces of the car,

v With these and various other objects in View, the inventionjmay consist of certain novel features ofjconstruction and operation, as will be more vfully describedand particularly pointed out in the specification, drawings and claims appended'hereto.

In the drawings, which illustrate an em- QC nent-of the device and wherein like reference characters are used to designate like Pa ts? 7 Figu e l s a ransverse ect onal V v0f a dump car embodying the construction of the present invention; and i a T Figure Zi s a transverse sectional View of adun p car sin ilar to'Figure 1 showing the dumping mechanism in discharged posi- The present invention is shown as applied to a railw'ay ballast car having the usualside walls :10, end walls lland bottomrwhichin this case is a hopper bottom, comprising two hoppers 12 formed on opposite sides of a longitudinally ,eXtending' center sill structure. The sill" structure includes a plurality of spaced vertical beams 13 having disposed over them a longitudinally extending memberlei provided with inclined side Saracens and secured to theends ofthecarby flan cs 16, Also secured to each'end structure of t escar and entending longitudinally thereof are members '17 which are inclined and serve'to join the side walls 10 with the hopper doors, to be presently "described. *Thesemember's form shedding surfaces and'serve to direct the ballast material towards the hopper openings 12 as does also the member 14 by reason of the shedding surfaces 15,described. Y

It of course understoodth'at the center sill members comprising the beams 13 form theiinner walls of the longitudinally attending hoppers 12 andfor this kreasdn are prgmeans of brackets 21 secured to the lower flanges by any suitable means. It is therefore seen that the members 18 not only form a continuation of the inner walls of the hopper but also function as pivoted doors and when in closed'position have engagementiwith the main hopper doors, to be described, to form a portion of the hopper bottom.

i The otheror outer walls of the hoppers 12 are formed byrdoor structures in each case including a door frame 22 pivotally connected at its upper edge as at 23 to the car structure by means of any suitable bracket or support 24:. The door frame in each case extends considerably beyond the lower extremity of its associated hopper wall18 when in .cflo'sed position asshown in F igure 1.

Pivotally mounted in each of these door framesare one or more doe'rs2'5, which preferably are pivoted in the door frames as at 26 at a point just b'elow the lower extremity of the associated inner hopper side wall 18, so that when the doors '25 are in open position the surface of the doors and the members 18 will form a continuousv shedding surface which mayor 'ina-y not be in the same plane in accordance with requirements. The opening andc'losing movements of the doors 25 are controlled by any suitable door operating mechanism. including chains 27 v operatively connected tothe doors and to operating shafts,

28 iournaled in the brackets 24.; 4

. Particular reference willnow be had to the means whereby the flow of dumpable ma terial 'fromhopper's 12 maybe accurately controlled andmore specifically to means wherebyfballast material is properly deposited with respect to the rails and prevented from coveringthe latter. v This comprises the operating 'mechanism 'for controlling the opening and closing movements of the door frames 22 which mechanism consists of an operating shaft 30, preferably square in cross-section and journaled in U-shaped brackets 81, which brackets are secured to and depend from the lower flanges of the vertical beams 13. Located on theshaft 30 are a plurality of crank arms 32, each arm having pivotally secured to its lower end a link 33 of the formation as shown in Figure 2. To the free end of the links-33 is pivotally tsecured hanger arms 34 which arms are in turn'pivotally secured at 35' to the lowermost end of the door frames 22. For controlling opening and closing of the frames 22 there fore, it-is only necessary to rotate the operating shaft-30 which'will in turn impart the necessary rotation to the crank arms 32 which serves to lift the hanger arms 34'and locate the. same over .the operating shaft 30, as

of the'ball'ast'material 'uponthe doors will be supported from the brackets 31 and thus from the center sill structure including the beams 13.

A feature of the present invention in connection with this opening and closing of the frames 22 so as to deposit the ballast material substantiallvcentrally of the roadbed, comprises operating mechanism for simultaneously imparting rotation to the members 18 so as to cause more efficient dumping of the material. This mechanism comprises a plurality of levers 38, each lever pivotally secured at 39 to the lower end of the door frame 22 at a point somewhat removed from the pivot 35'of the arms 34. Each lever 38 is also pivotally secured at its other end to the member 18 located opposite to its particular/door frame 22 to which the lever is secured: I Each lever 38 therefore'is disposed diagonallytoits companion lever and functions to impart the necessary rotation to the members 18 about theirpivot point 20 as the various door frames 22 are opened or close'daccording to the ope'rationof the operating shaft 30. By reference to Figure 2, it isrseen thatthis construction of pivotally securing the levers atone end to the frames 22 and-at their other end to a member 18, will'function to impart counterclockwise rotation to one of the inembers, and clockwise rotation to the other member. This movement of the members 18 takes place'imr mediately upon the lowering of the door frames and'increases in the rapidity of its movement as'theopening ofythe door frames 22 continue. I I

Whenit isdesired to deposit lading between the rails 8'8 the op'eration is accomplished by lowering of the door frames 22. It is 'to be noted that when the frames are in closed positionthe members 18 have contacting. engagement with and form withthe frames or morecorrectly with theidoors 25' an angle which is greater than a right angle. Upon a'lowering of the frames the 'members 18 are caused to pivotally rotate as described which movement is such that contact between the frames 22and the members 18 continues until theangle between them assumes right angle. This position of the parts is clearly shown in dottedlines in Figure 2.- It is thus seen that-discharge of the material is pre vented until the frames are loweredto a predetermined point., This feature is particularly importantfin the construction of ballast cars. p I w The structure describedalso allows more efficient dumping of the material by material ly increasing the size of the discharge opening. In previousconstructions the size of the dlscharge opening. was defined by the lower end ofthe inner hopper walls and the door frames when the same wjerein dischargepositionv However, inthe present construction the inner hopper-walls whichin this case inp clude the members 18, are simultaneously Lava-car Opening through which the material is discharged is considerably increased. The pres ent invention therefore results in a dump car which will embody structure for adapting the same for use as a coal car without sacrificing any of the features desirable in ballast car construction.

Another feature of the invention resides in the fact that although the members 18 have pivotal movement simultaneously with the opening and closing of the frames 22, they also form a portion of the hopper bottom when the frames are in closed position since the members 18 are then disposed in sloping position with respect to the frames and have engagement against thedoors 25 so as to complete the hopper bottom.

It is to be understood that I do not wish to be limited by the exact embodiment of the device shown, which is merely by way of illustration and not limitation, as various and other forms of the device will of course be apparent to those skilled in the art without departing from the spirit of the invention or the scope of the claims.

I claim:

1. In a hopper car, a hopper and means for closing said hopper, including a door comprising a part of the hopper bottom and a member cooperating with said door at a point intermediate its length to complete the hopper bottom, said member having movement during the opening of said door to materially increase the size of the discharge opening.

2. In a hopper car, a hopper and means for closing said hopper, including a door comprising a part of the hopper bottom and a member cooperating with said door to complete the hopper bottom, said member forming an extension of the inner hopper wall and engaging the door when closed intermediate its length, and means imparting rotation to said member during the Opening of said door to increase the size of the discharge opening.

3. In a hopper car, a plurality of hoppers, doors for closing said hoppers, said doors being pivotally mounted with their free edges extending towards each other, members comprising inner hopper walls and engaging said doors intermediate its length when in closed position to complete the hopper bottom, said members being adapted for movement during the opening of the doors to increase the discharge opening.

4. A car of the class described having a bottom comprising a longitudinally extending hopper, said hopper having an inner wall and an outer movable wall, said inner wall including a pivotally mounted extension having engagement with said movable wall at a point intermediate its length when in closed position, and means for imparting rotation to said extension. during the opening moveinentsof said movabletwall.

5.. Acar of the class described having abottom comprising a longitudinally extending hopper, said hopperincluding a door structure pivotally mounted at its upper end and movable tocontrol the. flow of dumpable material to a point between the rails, and means actuatedby said door during movement, thereof for facilitating the flow of said dumpable materiah V 6.; A; car. of the class described having a center sill forming wall portions of oppo sitely. arranged hoppers, said center sillj including longitudinally extending beams and having memberspivotally secured thereto forming extensions of said wall portions, pivotally 'mounted doors forming the other wall of said hoppers,said doors and said pivotedniembers being movable simultaneously to facilitate discharge, of material from said hoppers 5 7. A carof-the class described having a center sill forming-wall portions of oppositely arranged hoppers, said center sill including. longitudinally extending beams, members pivotally secured to said beams and forming extensions of 'said'wall portions. pivotally mounted doors forming the other wall of said hoppers, and means connecting the freeaen-d's. of said members with the free ends of said oppositely located doors, whereby said members are rotated during the op ening movements of said doors in a direction to increase the size of the discharge openings.

8. A car of the'class described having a center sill forming inner wall portions of oppositely arranged V-shaped hoppers, said center sill including longitudinally extending beams, members pivotally secured to said beams and forming extensions of said inner wall portions, pivotally mounted doors forming the outer wall of said hoppers and cooperating with said members when in closed position to form the bottom of said hoppers, levers pivotally secured to the free ends of said doors and having pivotal connection to oppositely located members, and means for imparting opening and closing movements to said doors, the opening movement of said doors imparting rotation to said members in a direction to increase the size of the discharge opening.

9. A car of the class described having a center sill, a hopper, an inclined swinging door normally closing said hopper, said door having a free edge extending toward the center sill, and pivotally mounted means cooperating with the door at a point intermediate its length to prevent discharge of ma terial from the door until its opening movement has reached a predetermined point.

10. A car of the class described having a center sill, a hopper, an inclined swinging door normally closing said hopper, said door having a free" edge extending toward the center sill, pivotally mounted means dependingfrom said center sill, said means cooperating with the door at a point intermediate its length to prevent'discharge of material from the door until its opening movement has reached a predetermined point.

11. A car having a bottom comprising a longitudinally extending hopper, one side of said hopper including a pivoted extension, the other side of said hopper including an inclined door normally engaging the pivoted extension and mounted to swing away from said extension to'discharge the load to one side'of the rail, or to swinginto line with said extension to discharge the load to the other side of the rail. 7

12. A car of the class described having a center sill, a bottom comprising a substantially V-shaped hopper having a downwardly extending extension forming the inner side and being pivotally secured to said cen ter sill, a downwardlyand inwardly inclined outer side, the inner end of said outer side extending beyond the lower edge of the pivoted-extension, and means for discharging the load through said hopper toward the center or toward the side of the car,

Signed at Chicago, Illinois, this 29thday of May, 1930.

DAVID HINDAHLL

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