US1160379A - Dumping-vehicle. - Google Patents

Description

K. G. F. CONRAD.

DUMPING VEHICLE.

APPLICATION FILED ,MAY 21, 1913'. RENEWED nun: 29. I915.

PatenNov. 16, 1915.

K. G. F. CONRAD.

, numrmfi VEHICLE. APPLICAHOPI FILED MAY21| 19I3- RENEWED JUNE 29. I915.

Patented Nov. 16, 1915.

9 YSHEETSQSHEEVT 2.

K. G. F. CONRAD.

DUMPING VEHICLE.

APPLICATION ,nuzo my 21. I913- RENEWED JUNE 29. m5-

Patented Nov. 16, 1915.

s SHEETS-SHEET 3.

K. G. F. CONRAD.

DUMPING VEHICLE.

' APPLICATION FILED MAY 2 1M3. RENEWED JUNE 29, I915. L1@,379. Patented Nov. 16, 1915.

9 SHEETSSHEET 4- K. G. F. CONRAD.

DUMFING VEHICLE.

APPLICATION .HLED MAY 21. 1913. RENEWED JUNE 29. I915- Patented N... 16, 1915.

9 SHEETS-SHEET 5.

5-SHEET 6.

nuMPmc VEHICLE. I APPLICATION FILED. MAY 27' I913. RENEWED JUNE 29. l9l5.

Patented Nov.

K. G. F. CONRAD.

K. GTHEONRAD.

. DUMPING VEHICLE. APPLICATION FILED MAY'ZI. I913- BENEWED JUNE 29. I915. 1 16 3319, 7 Patented Nov. 16, 1915. I

9 SHEETSfSHEET 7.

K. e. F. CONRAD;

DUMPING VEHICLE. APPLICATION :H'LED MAY 27. 1913. RENEWED um: 29, 1915.

Patented Nov. 16, 1915.

9 SHEETS-SHEET 8.

' K. G. F. CONRAD.

DUMPING VEHICLE. APPLICATION FILED MAY 27. 1913. mangwsn JUNE 29. 1915.

Patented N 0v. 16, 1915.

9 SHEETS-SHEET 9- imam - ner KARL GEORG FRIEDRICH CONRAD, OF CHEMNITZ, GE t. H. F

DUIVIPING-VEHICLE.

Specification of Letters Patent.

Application filed May 27, 1913, Serial No. 770,207. Renewed June 29, 1915. Serial No. $2,124.

To all whom it may concern:

Be it known that I, KARL GEoRo Femo- RICH CONRAD, director of the Sachsische Maschinenfabrik, A.-G., vorm. Rich, Hartmann, Chemnitz, a citizen of the German Empire, residing at Chemnitz, in the Kingdom of Saxony, Germany,have invented certain new and useful Improvements in Dumping-Vehicles, of which the following is a specification.

My invention relates to improvements in dumping vehicles, and more particularly in dumping vehicles, in which one or more boxes are disposed on the frame together with lifting means for dumping the boxes.

One of the objects of the improvements is to provide a dumping vehicle of this class in which the boxes can be elevated simultaneously at both sides and dumped in elevated position, so that the material con tained therein can be dischar ed into a receiving apparatus which is disposed either above or below the frame of the car.

A further object of the invention is to provide lifting means for the said box or boxes which can be put together to a small height above the frame of the car when out of use, and which can be extended to considerable height when in position ready for elevating a box.

A further object of the improvements is to provide common elevating means which are adapted for use in connection with any one of the boxes.

With these and other objects in view my invention consists in providing the car with one or more boxes'adapted to be readily elevated therefrom and with lifting means consisting of two lifting members located one at each side of the car and adapted to be shifted longitudinally of the latter into position for cooperation with any one of the boxes, each have been used in all the views to indicate corresponding parts.

In said drawings-Figure 1, is an end view of the car, Fig. 2, is a partial side view thereof, Fig. 3, is an end view of the car with one of the box members in elevated or discharging position, Fig. i, is a longitudinal section of the clutch provided for gradually lowering the boxes, Fig. 5, is a partial longitudinal section of the said clutch taken Patented Nov. 1%, i915.

at a right angle to the section shown in Fig.

4, Fig. 6 is a sectional plan view of one of the pillars of the lifting mechanism, Fig. 7, is a diagrammatical view of the trains of chains or ropes, Fig. 8, is an end view showing a modification of the car, with one of the boxes in elevated or discharging position, Fig. 9, is a side view of the car shown in Fig. 8 with the elevating mechanism shown in its out of use position, Fig. 10 is an enlar ed cross-section illustrating the manner o mounting the stationary frame on the car, Fig. 11, is a detail view showing the mechanism for closing the upwardly swinging side boards of the boxes, Fig. 12, is a longitudinal section taken on the line 1% 12 of Fi 8, and showing the stationary and ,shifta le frames in slightly difierent positions, Fig. 13, is a side view of one of the pillars forming a part of the stationary frame, seen in the direction of the longitudinal axis of the car, Fig. 14:, is a longitudinal section-of one of the telescoping pillars, in-

termediate tubular gmdmg shiftable rods taken transversely of the ve hicle, Fig. 15, is a view of the intermediate tubular guiding member seen from the side of the car, Fig. 16, is a view of one of the shiftable rods seen from theleft in Fi .141, Fig. 17 is an enlarged cross-section 0 one of the stationary pillars, the telescoping intermediate tubular members, and the shiftable rods, Fig. 18,is a side view of the lower part of thecar and the liftin mechanism and showing a modification o the driving mechanism for the lifting mechanism, and

. Fig. 19, is an end view of Fig. 18

Referring to the example shown in Figs.

1 to 7 the frame 1 of the car carries one or more box members 2 the side boards 3 of which are hinged at their upper sides to the main portions of the box members, so that they can be swung upward, as is indicated in Fig. 3. At each side of the caran elevate ing mechanism is longitudinally shiftable on rails 4:- The said lifting mechanism consists of shame mounted at the side of the members, and

frame 1 of the car and shiftable rods 8. The

7 frame consists of a pair of upright pillars 5, 5 which are connected at their lower ends by a suitable frame work 6. Near its upper end each of the pillars carries a chain or rope pulley 7. The shiftable rods 8 have a U-shaped cross-section, and they are telescoped within the-pillars 5. At their upthe bottom part of the box towhich they are secured at 16, as is best shown in'Figs. 2 and 7. At each side of the car there is a shaft 17 to which the driving pulleys 14 are secured which cooperate'each with one of the chains provided on the pillars and rods. The shafts 17 are adapted to be rotated by means of cranks (not shown) .which can be placed on the shafts 18 of worms 19. The latter are in mesh with worm gears 20 which are loosely mounted on the shaft 17 and are adapted to be coupled thereto for driving engagement. In the example shown in Figs. 4 to 6 the said coupling means are constructed in the form of a friction clutch consisting of a coupling member 21 which is rigidly secured to the shaft 17 and rigidly connected with the driving pulley 14, and of a coupling member 22 which is longitudinally 40 coupling members the worm gearing 20 is shiftable on the shaft. Between the said loosely mounted on the shaft. Preferably through the intermediary of an antifriction bearing a pressure ring 23 bears on the coupling member 22, and the said ring is acted upon by a pair of strong pressure springs 24. The latter bear with their opposite ends on a pressure ring 25 which, preferably through the intermediary of an anti-friction bearing bears on a ring shaped disk 26 which is mounted on the shaft 17 by means of a nut 27. The pressure rings 25 and 26 and the nut 27 aresimultaneously shiftable longitudinally of the shaft 17, and they bear through the intermediary of an anti-friction step bearing 28 on a cam 29 which is connected with a hand lever 30.

If the-hand lever 30 is in the position shown in the drawing, the tension of the springs has been reduced to such an extent, that there is only little friction between the gear wheel 20 and the clutch members 21 and 22, so that the gear wheel and the shaft are free to be rotated relatively to each other. By rocking the hand lever the cam exerts a pressure on the presconnected with the shaft 17.

If it is desired to discharge one of the box members, the lifting mechanisms are placed into position for cooperation therewlth, and the ends of the four chains are attached to the bottom part of the box at the points 16. Now the shafts 17 are rotated by means of the cranks, and the driving'pulleys 14 move the chains 10 in such a way, that the shiftable rods 8 are forced upward within the pillars 5. By rotating the pulley 14 of each chain 10 by means of the crank placed on shaft 18 both ends of each chain are simultaneously lifted. The chain can not become slack at any part, because the branch of the chain 10 attached to the box .2 which is trained on loose pulley 9, and the branch attached to the rod 8 and trained on loose pulley 7 hold the branches between the pulley 20 and the pulleys'7 and 9 under tension. By my. improved construction chain drums for winding the chains are avoided. If both shafts 17 are rotated at uniform speed, the box is lifted without being dumped, and it is dumped by rotating only one of the shafts, as is shown in Fig. 3.

If desired the box may be tilted by rotatingone of the shafts backward, or by rotating the shafts in opposite directions, or by releasing the spring 24, that is by loosening the clutch mechanism connected with the worm gearing, in which case the box is lowered by its own weight. After the box has thus been emptied, the lifting mechanism can be returned into initial positionby rotating the cranks in, the opposite direction, or by loosening the clutch mechanism 22. In the latter case the function of the clutch is to permit rotation of the shaft relatively to the gear wheel which is locked by the worm 19. The shafts 17 which in the example shown in the figures are rotated by hand mayalso be operated by mechanical means.

By connecting the chain 10 to the lower parts of the boxes 2 the advantage is obtained, that the said boxes can be dumped more easily and that they can if desired be raised above the rods 8 of the lifting mechanism, so that it is not necessary to have the rods excessively long.

- In the modification shown in Figs. 8 to i 17 the construction of the stationary frame consisting of the pillars 5 andthe braces 6- is substantially the same as has been described with reference to Figs. 1 to 7. The

rails 4 of U-shaped cross-sections are secured one on each side of the car, and the said rails provide supports for rollers 41 mounted on bracketsi secured to each of the pillars 5. The said brackets are formed at their upper ends with notches 43 which are engaged by a guide rail 44, which in the preferred form shown in the figures has a Z-shaped crosssection. To the lower ends of the pillars arms 52 are secured which engage at the rear of guide rails 53 secured to the brackets 51 and consisting of angle irons." Near the upper end of the car additional holding means are provided for the pillars 5. As shown the said holding means consist of brackets 55 having dove-tailed notches and brackets 57 having cross-sections of corresponding form, said brackets being secured one to each of the pillars and one to each of stationary members 56 (Figs. 8 and 9) mounted on the frame 1 of the car-and adapted to engage each other whcn the lifting mechanism has been brought into operative position relatively to one of theuboxes.

The upper flanges 45 of the Z-shaped rails 44: project upward beyond the lower edges of the hinged side boards 3 of the boxes, so

that the latter can not be swung into open position, unless the boxes have been elevated. Thereby the said side boards are normally locked in closing position. In order to unlock the side boards of the boxes automati: cally, when the goods are to be discharged to a comparatively low place, and the boxes are elevated at one side only, the following means are provided. Ateach side the boxes are provided with one or more lateral arms 46 which project laterally therefrom and are adapted to engage abutments 47 secured to the rails 44. When elevating the box at one side it is'rocked about the abutment 47 provided at the opposite side, so that the lower edge of the adjacent side board is lifted above the flange 45 of the rail 44:, and a chute 31 can be secured to the box and the side board opened. The side board 3 is locked in closed position by means of a lever 33 provided with a nose 32 and adapted to be locked by means of a pawl 34:.

The pillars 5 and rods 8 have U-shapedcross-sections and they are connected respectively at their lower ends by transverse braces 6. Between each 'pillar 5 and rod 8 one or more additional tubular members 35 are interposed which have ll-shaped crosssections and provide additional guiding means for the rods 8: As appears from Figs. 10 and 17 the said members are made integral at opposite sides with longitudinal rails 36 which are adapted to engage in corresponding longitudinal. grooves of the pillars 5 and rods 8, and hold the said members in engagement with the pillars and rods when loaded by oneof the boxes. Furthermore the said tubular member is formed at At the bottom part of the stationary frame a winding mechanism is provided which in. the example shown in Figs. 8 to 16 consists of drums 63 one for each of the pillars and a worm gearing 64:,65 adapted to be operated by hand by means of a crank (not shown). When rotating the drums chains 66 are wound thereon which are trained on pulleys 67 mounted at the upper parts of the pillars 5 and pass through the slits 37 of the members 35 to the lower ends of the rods 8, where they are attached to hooks (58 or the like. To the upper ends of the rods 8 chains 69 are connected which can be attached to books 70 provided at the bottom parts of the boxes 2. Near their lower ends the said chains have coiled springs connected thereto which are adapted to hold the chains under tension when the load has been removed therefrom, so that they are not unhooked from the boxes, and which are extended suiiiciently under the weight of the boxes, so that the said weight is not taken up by the springs but by the adjacent links of the chains.

The ends'of the boxes are provided with trunnions 73 which are engaged by guides 7st provided on the stationary members 56 when lowering the boxes, so that the latter are placed in their proper positions on the frame of the car (Figs. 8 and 9).

In order that the telescoping pillars 5, tubular members 35, and rods 8 can be made as large as possible within the space allowed for railway freight cars, they are preferably and at the top by a horizontal line from c to c. "When the rods 8 and 35 have been shifted downward and into the hollow of the pillars 5, the upper ends of the said parts are located below the horizontal line 0- -0,

which is higher than the corners b and b, so' that the pillars 5 can be made higher than in such cases in which'they are disposed vertically. I

In the example shown in Fig. 9 the worm gearing provided for driving the winding mechanism is located near one of the pillars. In the example shown in Figs. 18 and 19 a shaft 75 is located alongside the car, and the drums 63 are longitudinally shiftable thereon. The worm gearing 64, 65 and the crank are mounted at one end of the said shaft. The arrangement is preferable in such cases in which when unloading there-is no'room left at the side of the, pillars for the attendants.

The operation of the apparatus is as follows: If it is desired to unload the medium one of three boxes 3 mounted on a car, the lifting mechanism is shifted at opposite sides of the car so as to get into position for cooperation with the said box. In this position the subsidiary supporting members 57 is brought into position and the side board.

55 of the pillars are in supporting engagement. The chains which are connected to the upper-ends of the rods 8 are attached to the hooks provided at the bottom parts of the boxes 3, while putting the springs 72 under tension. Now the lifting mechanism is in the position shown in Fig. 9. By rotating the drums 63 by means of the cranks the rods 8 are shifted upward. After lifting the said rods a certain distance the lower abutment 39 of the rod 8 engages the abutment 38 of the tubular member 35, so that the latter is carried along. After the box has been lifted to the desired height, the chute'31 is secured to the discharge side of the box and the hinged side board is swung upward. Thereupon the box is further elevated at the opposite side, until it is in the position shown in Fig. 8. Now the goods are discharged from the box. When the box is empty, it is at first lowered at its higher side, the chute is removed, and the side board is swung into closing position and locked by means of the lever 33. Thereupon the box is further lowered simultaneously at both sides. The upper abutment 39 of the rod 8 engages the abutment 38 of the member 35 and shifts the same downward. The trunnions 73 secured to the ends of the box engage in the guides 74, so that the box is placed on the frame ofthe car in its correct position. When the box is in its lower position, the side boards are locked against unintentional opening by means of the rail 45.v

If it is desired to unload the goods to a comparatively low place, the car is lifted at one side only by operating one of the lifting mechanisms in the -manner described above. with its arms 46 on the abutment 47, until the side board is released. Now the chute is swung upward so that the goods are free to slide downward on the said chute.

I claim herein as my invention:

1-. In a dumping vehicle, the combination withthe vehicle frame, and'at least one box mounted thereon having a discharge at least When lifting the car it is rocked at one of the sides of the vehicle, of means provided one at each side of the vehicle frame to elevate the box with its whole bottom away from the vehicle frame and to dump the same with the discharge located at the side of the vehicle frame.

2. In a dumping vehicle, the combination with-- the vehicle frame, and at least one box mounted thereon having a discharge at ferent heights and provided one at each side of the vehicle frame to elevate thebox with its whole bottom away from the vehicle frame and to dump the same with the dis charge located at the side of the vehicle frame.

3. In a dumping vehicle, the combination with the frame, and at least one box mount,- ed thereon, of means mounted on said frame and comprising telescoping frames to elevate the box with its whole bottom away from the vehicle frame and to dump the same.

4. In a dumping vehicle, the combination with the frame, and at least one box mount- 1 ed thereon, of means mountedon said frame and comprising telescoping frames and telescoping guiding members intermediate said telescoping frames to elevate the box with its whole bottom away from the frame andto dump the same.

5. In a dumping vehicle, the combination with. the frame, and at least one box mounted thereon and having a discharge at least at one of the sides of the vehicle, of means provided one at each side of the vehicle frame and mounted on said frame and comprising telescoping frames to elevate the box with its whole bottom away from the vehicle frame and to dump the same with its discharge located at the side of the vehicle.

6. In a dumping vehicle, the combination with the frame, and at least one box mounted thereon and having a discharge at least at one of the sides of the vehicle, of means provided one at each side of the vehicle frame and mounted on said frame and comprising telescoping frames and telescoping ,with the frame, of a plurality of boxes mounted thereon and each. having'a discharge at least at one of the sides of the vehicle. of means provided one at each side of the vehicle frame and mounted on said frame and adapted to be brought into position for cooperation with either one of said boxes and adapted to elevate the boxes with the whole bottoms away from the frame and to dump the same with its discharge-located at the side of the vehicle.

8. In a dumping vehicle, the combination with the frame, of a plurality of boxes mounted thereon and each having a discharge at least at one of the sides of the vehicle, of means provided one at each side of the vehicle frame mounted on said frame and adapted to be shifted longitudinally of the car and into position for cooperation with either one of said boxes and adapted to dump the boxes with. the discharge located at the side of the vehicle. I

9. In a dumping vehicle, the combination with the frame, and at least one box mounted thereon, of means mounted on said frame to elevate the box with its whole bottom away from the frame and to dump the same, and means comprising at least one rigid support consisting 'of at least three telescoping members, and hoisting means therefor.

10. In a dumping vehicle, the combination with the frame, and at least one box mounted thereon, of means mounted on said frame to elevate the box with its whole bottom away from the frame and to dumpjthe same, said means comprising at least one rigid support consisting of at least three telescoping tubular members, and hoisting means therefor.

11. In a dumping vehicle, the combineing members disposed at the sides of the frame and inclined toward the longitudinal axis-thereof and adapted to be set up to different heights, and hoisting means therefor.

12. In a dumping vehicle, the combination with the frame, and at least one box mounted thereon and having an upwardly swinging side board, of means mounted on said frame to elevate the box with its whole bottom away from the frame and to dump the same, and relatively fixed means located adjacent the side board when placed on the frame and above the lower edge of the side board to lock'the same in closing position.

13. In a dumping vehicle, the combination' with the frame, and at least one box mounted thereon and having an upwardly swinging side board, of means mounted on said frame to dump the box, relatively fixed means located adjacent the side board when 14. In a dumping vehicle, the combination with the frame, of a plurality of boxes: mounted thereon, of an upright hoisting frame disposed at the side of the frame, guiding and supporting means on said vehicle frame and at the lower end of the hoisting frame permitting the said hoisting frame to be set in position for cooperation with either ,one of said boxes, brackets on said vehicle .frame', and means on said brackets and hoisting frame arranged to provide additional supporting means for the hoisting frame.

15. In a dumping vehicle, the combination with the frame, and at least one box mounted thereon, of means mounted on said frame to elevate the box with its Whole bottom away from the frame and ,to dump the same, and guiding members provided respectively on said box andon said frame and cooperating to guide the box when being lowered in correct position on the frame.

16.. In a dumping vehicle, the combinanation with a frame and least one box mounted thereon, of at least one hoisting frame located at the side of the car and comprising telescoping members, a tension element by means of which the box is suspended from the uppermost member ofthe "hoisting frame, a relatively stationary drum,

means to rotate said drum, a pulley disposed near the top end of the lowermost member of the hoisting frame, anda tension element wound around said drum and said pulley and. passing downward therefrom to the bottom end of the uppermost member of the hoisting frame.

17. In a dumping vehicle, the combination with the frame, and at least one box mounted thereon, of dumping means for said box comprising an "upright frame, a tension element adapted. to be hooked to said box, and an elastic member secured with its ends to points of the tension element the distanceof which is larger than the length of the elastic member.

18. In a dumping vehicle, the combination with the frame, and at least one box mounted thereon, of means mounted on said frame to elevate the box with its whole bottom away from the frame and to dump the same, said means comprising a shaft disposed longitudinally of the frame, rotat- KARL (more ramnmcn 00mm);

Witnesses EMIL GEYER, WALTER K6HLER.

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