US1503513A - Car construction - Google Patents

Description

..'-. PEARSON CAR CONS TRUCTION Filed Dec. 9. 1921 5 Sheets-Sheet 1 @66565/ Ira/emf" I @757, fidr saq Aug. 5 1924.

J. PEARSON CAR CONSTRUCTION beets-Sheet 2 1,503,513 J PEARSON CAR CONSTRUCTION Filed Dec. 9. 1921 5 Sheets-Sheet 4 w m v 3 w m. mm 7 1 fl?! 0.. Gm M 1%.! w, v l I m; IHHHWAH Hul Q 9 M 3 \J v g r #1 W p m. z

Patented Aug. 5, 1924 1' JOHN rnnason, or CHICAGO, ILLINOIS.

QFICE.

CAR CONSTRUCTION.

'Application filed December 9, 1921. Serial No. 521,118.

To all whom it may concern: 7

Be it known that 1, JOHN Penn son, a citizen of the United States, reslding at Ghicago,in the county of Cook and State of Illinois, have invented certain 'new and useful Improvements in a, Car Construction;

of which the-following is a description.

My invention belongs to that general.

class of devices known as car constructions, and relates partlcularly to an improved dump car'construction- The invention has among its objects the production of a device 7 mechanism for controlling the-lowering andraising of the dum doors and locking the same in position. any other objects and advantages of the construction hereinshown and described will be obvious to those skilled in the art from the disclosures herein given. I

To this end my invention consists in the,

novel construction, arrangement and combination of parts herein shown and de scribed, and more particularly pointed out in the claims. I

In the drawings, wherein like reference characters indicate like or correspondingparts,

Fig. 1 is a cross sectional'view of a. car embodying my improved 'construction,-the doors at one side of the car being closed, and those at the other side opened;

Fig. 2 is a side elevation of the same; partly in section;

Fig. 3 is a section taken substantially on line 3:3 of Fig. 2;

Fig. 4 is a View similar to that shown in Fig. 2, with the doors lowered;

Fig. 5 is a section taken substantially on line 5-5 of Fig. 2; V

Fig. 6 is a section taken substantially on line 66 ofFig. 2; i

Fig. 7 is a section taken substantially line 77 of Fig. 3;

Fig. 8 is a section takensubstantially on line 8 .8 of Fig. 2;

. Fig. 9 is a detail in perspective of the locking hook; Y

Fig. 10 a detail in perspectiveof the guide for the slidable bar; and

on ftoth'e'sides or legs 6 of the angle bars.

Fig. 11 is a plan view of the car as seen from above. In the preferred embodiment of the invention,.a's illustrated in the drawings, the

rumiing gear or trucks, brake mechanism,

etc. are not illustrated, inasmuch as the f same is not requiredfor the purpose of describing the present invention,'and further- 'more, the same may be of'preferred or standard construction. -The main frame of the car body may also be considerably modified from that shownin the drawings without departing from the invention, although the construction illustrated ispreferred and 1 is believed to be in itself new and novel.

In the preferred construction, a center beam 1, preferably of I form, is extended lengthwise ,oi' the car, the draft rigging being ordinarily secured thereto at each end. A channelbarl isshown secured to the top flange of the center beam 1, with the side flanges 2 extending downwardly,

so as to overlie the to 'flange. of'said center beam. Carriedby the center beam 1 are body cross beams'3, the body frame being' carried by the body bolsters 4. These several parts are secured to the center beam in any'desired manner, and the center beam itself maybe constructed in a variety of ways, as for instance, two channelsarranged back to back, or the like. The; outer ends of the beams 3 are cut away to form shoulders to receive angle beams 5'6' extending lengthwise and preferably frorn'endclearance obtained. Secured to thestakes 7 are the side walls .8 of the car, which are offset at their lower ends, as most clearly "shown in Figs. 1, 5 and. 6, the offset being indicated at 9, and the side walls secured Any number of doors 10 may be arranged at the bottom forming the floor of thecar,

substantially at the center of the car. Each door 10, as shown, is formed with hinge parts 11 which are pivotally secured to brackets 12 carried by the channel mounted on the center beam 1, or in an equivalent manner. In the form shown, the doors when closed are. below the tops of the beams 3, there being flanged openings 13 in the floor of the car adapted to be covered by said doors, the flange at said opening extending clownwardly, as shown. When the doors are raised, they form the floor of the car, and as will be noted, when closed, are slightly below the top of the I beam. This is especially advantageous because when the car is loaded with lumber, structural iron or the like, the articles will bridge over the door openings and transmit the load solely to the bolster and beams. Thus the doors willnot be loaded nor as liableto strain, bending or breakage as when the load in the car rests thereon. Each of the doors 10 is constructed in any suitable manner, and each preferably has one or more support or brace bars 14 preferably ofangle iron formation and extending transversely of the door at right angles to its hinged edge and projecting beyond the free edge of the door as at 15. The projecting portion 15 of each angle bar it is bent slightly downwardly and outwardly ofthe door, and an eye-bolt 16, or other suitable fastening device, is secured to the projectingportion 15 of the bar to receive one end of a chain or other flexible memberl'Z, as will be hereinafter described.

.The raising and lowering of the doors is controlled by the chains 17, or by cables or the equivalent, suitably secured to and extended from the edge of the door, the same supporting the free edge of the door when open, one end of each chain being secured to the eye-bolt 16, as shown. The other ends of the chains are secured by means of an eye-bolt 18, or the like, to a slidable bar 23, which is slidably arranged on the angle 56, or its equivalent as shown, there being one or more bars 23 on each side of the car. In the preferred construction I control the operation of a portion of the doors on each side of the car from one end of the car, and the remaining doors from adjacent the other end of the car. This, however, is a matter of preference, as the doors, or the raising and lowering of the same, may be controlled, for example, from one end only, or from a point intermediate the ends if so desired.

As most clearly shown in Figs. 5 and 6, the leg-5 of the angle iron 5-43 is formed with a series of spaced, elongatedopenings 0r apertures 18 therethrough, and arranged at each opening is a sheave member 19, which is formed with side flanges 20 having a space 21 therebetween (see Fig. 8). Each of the sheaves 19 is rotatably mounted on a pivot pin 22 secured to the angle member 56 in any suitable manner. The sheaves 19 slidably and rotatably support the chains 17 between their ends, that is, between the eye-bolts 16 and 18. The slidable bar 23 is preferably, but not necessarily L-shaped, or in angle-iron form, as shown more clearly in Figs. 5 and 6, the horizontal flange being indicated at 24. A series of elongated openings 28 are formed in the flange 21, the metal at one end of the opening being turned or bent to form abutment ears 28 if desired.

Arranged at suitable points longitudinally of the sides of the car, and as shown, at each of the stakes 7 and secured thereto, are guide members 25, said guide members having a slot or groove 26 therethrough (see Fig. 10), to slidably receive and engage the free edge of the leg 24 of the slidable bar 23. These guide members 25 may be secured to the stakes 7 by rivets or other suitable or equivalent fastening means.

A pawl or hook having ends 26 and 27 is pivoted intermediate said ends on each of the pivot pins 22, the upper end 27 adapted to project through elongated apertures 28 formed in the flange 24 of the slidable bar 23 so that as the bar is moved, it will strike and rotate the series of locking hooks 26--27, as will be more clearly hereinafter described. Each book has a cam surface 3-1 at its lower end 26, and a cut away edge 35 at its upper end 27.

The bar 23 at one end as shown or at any point intermediate the ends is secured to a member 23, which is formed with a threaded portion 30. The threaded portion 30 is in threaded engagement with an internally threaded member or mandrel 31, The mandrel 31 is externally threaded, but in the opposite direction and arranged to threadedly engage a bracket or drum 32 suitably secured to the car, as for instance, by being extended tangentially, and securing this tangential extension to the upper end of the leg 6 of the beam 5-6 (Figs. 5 and 6). The threaded member 31 is formed as at 33, substantially similar to a capstan, so that it may be engaged by an operating bar or the like to shift the same, or rotate it in either direction. The parts may be arranged with either end toward the center of the car.

The operation of the device may be briefly described as follows: Assuming that the doors are in the position shown in Figs. 2, 5, 6 and 7, that is, the doors are closed or raised, then to drop the doors, the capstan (see Fig. 7) is engaged by a rod or the like and rotated. Because of the threaded engagement, the same will move through the bracket, as indicated,- to the left (see Fig. 4). The threaded rod 30 in engagement there with on the interior, being oppositely threaded and prevented from rotating by its rigid connection to the slidable bar 23, will ofth'e member 31 lengthwise, but owing to the "threaded engagement, the'r'od is'also advanced relative to the member 31. As the partsmove, the slidable bar 23 is of course moved until the rear wall of the apertures 28',- that' is, the" right hand end of the aperture, positively engages the tiltable hooks 2'627"totilt them about the pivot pins 22,

thus releasing the doors and holding the necks -inoperative.. 1

"To raise the doors, the reverse operation takes place, that is, thebar23 will be moved tit-the right, "lifting the doors y me of the chains 17 until the doors are almostfully or completely dlosed, at which time the bent ears. 28 .atthe forward end Walls of the elongated apertures 28 has positively en gaged and tilted the hooks 26-27 about the pivot pins 22, causing the tapered 'or cam surfaces 3A of the hookstoengage the projections 15 of the brace rod 14: with substantially a camming action to move the door 10 toward the floor so as to clamp it thereagain'st.

It will be noted that the rear ends of the upper portion 27 of the hooks have been ohamfered or cut away as at 35, so that when the slidable bar 23 is moved to the left, said bar will pivotally move the hooks to tilt them out of the way to disengage from the holding engagement with the doors and hold them inoperative as the slidable bar continues to move past the hooks, as

shown in Fig. at. When the doors are raised, the upper ends of the hooks will reengage in the apertures 28 and be positively aotuated when the doors have been substantially completely lifted to cause the camming action or final locking of the hooks as just described.

It will be noted that there is no strain.

whatever on the chains in so far as supporting the closed doors is concerned. Neither is there any direct transverse strain on the slidable bar 23, as the entire load is supported by the angle beam 5-6. It should be noted that the threaded or screw construction for operating the sliding'door, in itself, forms a most simple and eflicient looking mechanism, and that by means of it the doors may be supported at any point intermediate their extreme positions of up or down.

Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the spirit of my invention; hence -do not wish to be understood as limiting myself to the exact form, construction, arrangement and combination of parts herein shown and described, or uses men tioned. c e

What I claim as new and desire to secure by Letters Patent is:

1. Ina dump car, a door, means slidably movable on said car for controlling the movement of said door, and a hook pivotally mounted on said car, engageable with said door to hold it in raisedposition, said slidably mova'ble means positively actuating said hook to its door-engaging position.

2. In a dump car, a door hinged thereto at one edge, means slidable on said car for controlling the movement of said door, and a hook pivotally mounted on said car and engageable with said door at its free edge to hold it in raised position, and positively actuated by said means to control the doorengaging and releasing movement of said hook. I l l I 3. In a dump car, a door hinged thereto, a bar slidable on. said car frame, a flexible member connected at one end directly to said door and at its other end to said slidable bar and controlled thereby, and a hook controlled by said slidable bar to lock said door in its lifted position. 7

4. In a dump car, a door hinged thereto, a bar slidable on said car frame, .a flexible member connected at one end directly to said door and at its other end to said slidable bar and controlled thereby, and a hook mounted on the carframe controlled by said slidable bar and operative at substantially the end of the lifting movement of the door to lock saiddoor in its lifted position.

5. In a dump car, a door hinged thereto,

a flexible member connected at one end directly to said door and at its other end to said slidable bar and controlled thereby, and a hook pivoted on said car frame and posi- ,a bar slidably mounted on said car frame,

tively actuated by said slidable bar in one I direction of movement at substantially the end of the lifting movement of the door to lock said door in its lifted position and actuated in the other direction of movement to positively release itself from said door.

7. In a dump car, a door hinged thereto at one edge, means for lifting said door, and

hooks on a stationary part of said car, operable by said lifting means only at substantially the completion of said lifting and having cam surfaces engageable With said door to hold it raised.

8. In a dump car, a door hinged thereto at one edge, a rod slidably mounted on said car, flexible chains connected at one end di rectly to said door and at the other end to said slidable rod and operated thereby, and hooks on said stationary car frame operable by said slidable rod at substantially the end of the lifting movement of said door to lock said door in position.

9. In a dump car, a door hinged thereto at one edge, a slot-ted rod slidably mounted onsaid car, flexible chains connected at one end to said door and at the other end to said slidable rod and operated thereby, and hooks on said car projecting through said slot so as to be positively actuated by said slidable member at substantially the end of the lifting movement of said door to lock said door in position.

10. In a dump car, a door hinged thereto, a slidable bar on said car, flexible chains operably connecting said door to said bar, hooks fixed on a stationary part of said car movement of the bar in the opposite direction to release said hook to permit said doors to drop.

11. In a dump car, a door hinged thereto, a slotted slidable bar on said car, flexible chains operably connecting said door to said bar, hooks pivoted on said car and adapted to project through said slot and be actuated by engagement With the end walls thereof in both directions of reciprocation of said bar at substantially the end of lifting of said door to lock it in position, and at substantially the beginning of movement of the bar in the opposite direction to release said hook and hold it inoperative to-permit said doors to drop.

In testimony whereof, I have hereunto signed my name in the presence of two subscribing Witnesses.

JOHN PEARSON. Witnesses:

ROY W. HILL, 7 RUTH M. EPHRAIM.

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