US1112617A - Dump-door-operating mechanism. - Google Patents

Description

W. J. HOSOEIT.

DUMP DOOR OPERATING MECHANISM APPLICATION FILED SEPT. 26, 1910 1, 1 1 2,617. Patented 00t.6,1914.

4 SHEETSSHEET 1 HIE NORRIS PETERS CG PHc'ru-LIIHQ, WASHINOIOJ, n

W. J. HOSOEIT.

DUMP DOOR OPERATING MECHANISM.

APPLICATION FILED SEPT. 26, 1910.

1,1 12,617, Patented 00t.6,1914.

4 SHBBTSSHEBT 2. Q

7H5 NORRIS PETERS C07. PHOTO-LITHQ, WASHINGTON. 0 c,

w 1 N Imp/77,507

4 SH-EETSSHEET 3.

Patented Oct. 6, 1914.

W. J. HOSGEIT.

DUMP DOOR OPERATING MECHANISM.

APPLICATION FILED SEPT. 26,'1910. 1,1 12,617.

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will I H W. J. HOSCEIT.

DUMP DOOR OPERATING MECHANISM.

APPLIGATION FILED SEPT. 26, 1910.

m5 NORRIS PETERS c0 PHOTO-LITHU WASHINGTON, n c.

UNITED STATES PATENT OFFICE.

WILLIAM J. rioscnrr, or TOPEKA, KANSAS, assreivoni TO NATIONAL nmvri CAR coin:-

PANY, 0F CHICAGO, ILLINOIS A oon-roimrron or MAINE.

DUMP-DOOR-OPERATING 'MECl-IANISM;

Specification of Letters Patent.

Patented Oct. 6, 1914.

Application filed September 26, 1910. Serial 1%. 583,788.

1 b all whom, it may (JO/2176777,.

3e it known that l, lVILLmM J. Hosonrr, a citizen of the United States, residing at Topeka, in the county of Shawnee and State of Kansas, have invented certain new and useful Improvements in Dump-Door-Operating Mechanism, of which the following is a specification.

My invention relates to dump cars and has particular reference to improved means for operating the dump doors.

My improvements have been directed chiefly to the hopper type of cars which have sloping end walls leading to a central discharge opening, though they may be applied to other forms of dump cars.

The object of my improvements is to provide mechanism for operating movable supporting shafts, which in their supporting positions are adjacent the meeting edges of hinged dump doors. My improvements may be used in other connections and are not limited to the arrangement of doors above mentioned.

A particular object of my invention is to provide means for simultaneously moving the door supporting shafts either toward or away from their door supporting positions at the will of the operator, said means being located at each side of the car and adapted to be actuated by the operator at either side. The means employed for accomplishing the above object comprise members having vibratory or oscillatory movements and an important object has been to render the said members capable of transmitting the power of the operator to the door supporting mechanism while its vibratory movements in both directions are being effected.

Other objects of my improvements will become more apparent in the following specification and claims, taken in connection with the accompanying drawings in which- Figure 1 is a side elevation of a car of the hopper type with my improvements applied thereto. Fig. 2 is a section of the lower portion of said car taken substantially on the line 2, 2 of Figs. 1 and 3. Fig. 3 is a longitudinal section of the lower portion of the car taken substantially on the line 3, 3 of Fig. 2, some of the parts being shown in elevation. Fig. .lis a horizontal. section of a portion of the lower part of the car taken charge opening. opeiringis divided into two parts'by ver-,

substantially on the line 4; 4: of Fig. 3. The line 4, 4 of Fig. 3 is irregularly placed to permit parts to be sh'ow'n in this view which lie above the general plane of the section. Fig. 5 is a sectional view in detail showing the ratchet bar carryinglinlrs and the arms on which they are suspended. Fig. 61s" a perspective view of a detail showing the manner in which the operating lever is con nected with the movable ratchet bar guides. Fig.7 is a detail showing a portion of one of the ratchet bars in its relationto the ratchet wheels whenclisengaged therefrom. Fig. 8 is a detail showing one of the ratchet bar elevating levers. A

In the' drawings I have preferred to illustrate my improvements in connection with a car of the hopper type constructed chiefly of steel.

tical portions 14, which in' a similar manner, serve as end walls for the said dis- The' central discharge tical plates and 16, which are placed transversely of said dischargeop'ening and are suitably secured to the side walls 13. These vertical plates 15' and 16 are provided EWi'C-ll sloping upper portions 17 and 18 which converge and meet in flanges 19 which'are secured together. The verticalwalls 14-, 15, 1 16, &c., terminate in horizontally disposed flanges 20, 21,22 &c., against which the bodies 23 of the doors bear in their closed positions. The framework of the can also. includes longitudinally disposed .members 25, which are preferably channel bars and iagainst which the vertical portions of the iplates 12 are secured. The framework also includes longitudinally disposedangle bars 26 which are secured to the lower edges of the side walls 10. Between the channel bars 25 and the angle bars 26 are placedthe struts or stays 27, which are suitably secured to said members 25 and 26. The

transversely disposed plates 28 are attached In said car the side walls lO are made of steel plates and the sloping end plates 11 are secured to said side walls. The

The

to the vertical plates 15 and 16 and these plates 28. taken in connection with said plates 15 and 16, serve to form a housing or covering for the greater part of the door operating mechanisn'i. The upper edges of these plates 28 are flanged as shown at 29 and 3t) and the said flanged portions are placed against the lower flanges of the channel bars 25 and may be secured thereto. These plates 28 preferably extend the whole width of the car and terminate beneath the outer edge of the angle bars 26.

The plates 23 of the dump doors are provided with ribs 31 upon their lower surfaces. which serve as stifiening ribs for said doors and also as convenientmeans upon which the rollers 33 may operate. The ribs 31 are spaced from the doors at their inner edges by flanged members 31 A flanged member 31 is also placed between the door 23 and the rib 31 and has a position lying parallel to the said ribs. The ribs 31 have a portion 31 at their inner ends which is substantially parallel to the tracks 34: when the doors are closed as will be more fully described later. The ribs 31 also have a portion 31 having a greater slope than the portion 81 and ex tending from the latter to a point near the middle of the body 23 of the door. The rib 31 is given an upward turn at its outer end 81 to which are attached the hinges 31. These hinges are suitably attached to the frame members 25.

The rollers 38 are mounted upon the shafts 32, which shafts are in turn supported by the track bars 34. The inner edges of the dump doors 23 are supported in their closed positions by the said shafts 32. These shafts are preferably square in form and carry gears 36, which have hubs of considerable length and cylindrical in form. These hubs serve as convenient bearings for the rollers and also serve as rollers for supporting the shafts as they move upon the tracks The track bars 31- have a position preferably inclined slightly froin the horizontal and are provided with upwardly turned inner ends 34; which are riveted or otherwise suitably secured to the plates 28. The outer ends of the bars 34L are upwardly turned and secured to the struts 2'? by the rivets 3t The track bars are provided with pins or teeth 37 which mesh with the teeth of the gears 36, and when the gears 36 are rotated the shafts will be caused to travel along said tracks. The track bars 39, adjacent the outer ends of the shaft 32 are in every respect similar to the track bars 3-1 in their essential features. The gears 38, fixed to the outer ends of the shafts 32, are also similar to the gears 86.

My improvements are largely directed to the means for rotating the shafts 32 and this mechanism will now be described.

At the middle of the length of one of the shafts mounted ratchet wheels -10 and l1. These ratchet wheels have square apertures which fit the square shafts 82, and hence are non-rotatably fixed to said shafts. The other of the shafts 32 is also provided with similar 1': tchet wheels 42 and l8, also non rotatably fixed to said shafts. The teeth of the ratchet wheel 10 slope in oppd site directions to the teeth of the ratchet wheel 11. The teeth of the ratchet wheel slope in opposite directions to those of the ratchet wheel 41. It will therefore be seen that each of the shafts 32 is provided with a pair of ratchet wheels having teeth which slope in opposite directions. Tmmediately above the said ratchet wheels are ratchet bars 14- and 45 arranged transversely of the car and adapted to engage the said ratchet wheels in pairs. In other words, one of the ratchet bars at adapted to engage one of the ratchet wheels on each shaft. and the other ratchet bar 15 is adapted to engage another ratchet wheel on each shaft. The teeth of the ratchet bars at and :45 also shape in opposite directions. This necessary to enable them to properly mesh with the ratchet wheels directly beneath them. Each of the said ratchet bars conWrisr-s two inclined portions which meet at the center of the car and have an inclination subsiantially parallel to the track bars 34-. hie of the ratchet bars at is adapted to engage the ratchet wheel all) on one of the shafts and the ratchet wheel on the other of said shafts The teeth of the ratchet wheels 40 and 153 slope in opposite directions, and hence the teeth of the inclined portions of the bar all must also slope in opposite directions to properly mesh with said wheels. The ratchet bar 45 is adapted to engage the ratchet wheel 11 on one of the shafts 32 and the ratchet wheel on the other of the shafts These ratchet wheels and 41-2 also hare teeth. which slope in opposite directions. The teeth of the ratchet bar 1:5 also slope in oppositedirections.

The ratchet har -15 and the two wheels -11 and. -12 which engage it are in every respect similar to the ratchet bar 4st and its associated ratchet wheels -il:0 and except that the teeth in each case slope in opposite directions. Tn other words, there are tvo groups, each of which groups comprises a ratchet bar and two ratchet wheels. The cm'responding teeth in the two groups slope in opposite directions. The group comprising the ratchet bar ll and the two ratchet wheels 40 and 13 has teeth of such slope that when the ratchet bar ll is reciprocated, the ratchet wheels will be given such a direction of rotation as will. cause them to move toward the center of the car. This group is shown in F The group comprising the ratchet bars-5 and the ratchet wheels l1 and 1-2 has teeth of such a slope as will cause them to move away from the center of the car when the ratchet bar is reciproca'a'ied.

From the above description it will be seen that if one of the ratchet bars is placed 11 engagement with its ratchet wheels and s reciprocated, the shafts 32 may be moved toward the center of the car. \Vhen this is done the other ratchet bar must be disengaged from its ratchet wheels. hen it is desired to cause the shafts 32 to move away from the center of the car the connections between the ratchet bars and the ratchet wheels must be reversed.

The ratchet bars 4: and d5 lie uponeach side of the central movable plate -l6 andare preferably in contact therewith. Adjacent the extreme ends of the :ratchet bars are clips 4:? and l8 which overlap said ends and which are riveted to the said movable plate all. These clips d? and dSserve as vertical guides for the ratchet bars. The ratchet bars have a slight vertical movement-equal to or slightly in excess of the depth of the teeth. This vertical movement'is necessary to permit the engagement and the disengagement with the ratchet wheels. This vertical movement is also necessary to permit a slight tilting of the ratchet bar when it slips over the teeth of one of theratchet whee-ls during a stroke in one direction and while it is imparting motion to the other of its ratchet wheels.

The movable plate :LG is'provided with angle bars a9 and 50 attached to its upper edge and extending the full length of said plate. The horizontally disposed flanges of said angle bars rest upon brackets 51 and 52 and are guided thereby. These brackets are secured to the framework of the car through means of the intermediate hangers 5'2 and 51. These hangers are secured to the anglebars 26 of the framework.

The movable plate 'it) is given a reciprocating movement by the lever 523, which has an upwardly extending arm 5% which is fitted into a notch or socket 54: in said plate and in the angle bars fixed thereto. The lever 53 is pivoted upon the pin which is carried by the sleeves 58 which are fixed to the plates 28. The lever 53 has a downwardly extending portion below the pivot 55, which is provided with a socket 56 adapted to receive an operating lever 57. This operating lever preferably given a tapered end which may be conveniently inserted in the socket 56 by the operator when the latter desires to actuate the dump-door operating mechanism.

In order to raise the ratchet bars out of engagem nt with their ratchet wheels, the links 59, 60, 61 and 62 are provided. These links are pivotally attached to the ratchet bars 63, 6f, 65, &c. The upper ends of these links are provided with slots 67, which engage arms 68, 69, and 71 which are oppositely disposed in pairs on the shaft 72. The shaft 72 is provided with suitable bearings in the framework of the car. The shafts may pass through the side walls 13, channel bars 25 and may be supported. at their outer ends in bearings 73, 7%. These bearings are supported by the hangers 51 and 52. At the extreme outer ends of the shafts are small hand levers or cranks 75 and 76. By means of these hand levers the shaft 7 2 may be rotated in one direction or the other through a small angle. This movement will cause either one of the ratchet bars 4A or d5 to be elevated while the other is being lowered. This is effected by-means of the links 59 and 60, 61 and 62 which are suspended from said arms 68, 69, 70 and 71.

In order to permit the previously described tilting of the ratchet bars while they are slipping over their ratchet wheels, the slots 67 in links 59, 60, 61 and 62 are pro vided. These slots have sutlicient length to permit an upward movement which results from the said tilting movement. The links are guided by the angle bars 4-9 and 50, in which are apertures 49 and 50 in which the said links have a sliding movement.

The operation and use of my invention is substantially as follows: The operator first places the particular ratchet bar into ongagementwith its ratchet wheels which will cause a movement of the shafts 32 in the direction desired. If, for example he desires to dump the load, he will rotate either of the levers 75 or 76 in such a direction as to cause the ratchet bar e5 to become engaged with the ratchet wheels ll and 43. The same movement will cause the ratchet bar 44c to become disengaged from'the ratchet wheels 40 and .42. Upon examining Fig. 7, it will be seen that the teeth of the ratchet bar :45 havesuch a slope as will cause an outward rotation of the ratchet wheels -1 and 43 when the said ratchet bar 45 is reciprocated. In the movement of the ratchet bar in one direction, the teeth will engage the ratchet teeth 41 and will slip over the teeth in the ratchet wheel l-3. In the reverse movement of the said ratchet bar the teeth will engage the wheel 4-3 and slip over the teeth in wheel ll. There will be an alternating step by step movement given to the ratchet wheels. The rotary .movement thus produced in the ratchet wheels l3will cause them to give a like rotary motion tothe gear 36. The teeth of the gear36 will engage the teeth 37 of the tracks Mend an outward movement of the shafts will result. The shafts will roll along the tracks 34: until they reach the first bends in theribs 31. As soon as they have passed these bends the roller 33 will more easily roll upon the inclined portions 31 and the load in the car will greatly assist in causing a further opening movement of the doors. The operator inserts the hand lever 57 in one of the sockets 56 on the side of the car near which he may be standing, and upon giving a vertical oscillating movement to the said hand lever the arm will impart a reciprocating movement to the plate 46. The late t6 will. in turn. impart its movement to the ratchet bars A and by means of the clips 47 and 48. These clips bear upon the extreme end of the ratchet bars when imparting the said reciprocating movement thereto. l hen the operator desires to restore the doors to their closed positions he disenthe ratchet bar 1-5 from the ratchet wheels ll and 43 and causes the ratchet bar let to become engaged with the ratchet wheels l-O and 4:9. This he does by rotating ei er of the hand levers 7 5 or 7 6 in such dir ction as will raise the bar 45 and allow the bar 41% to drop into engagement with its ratchet wheels. He then gives to the lever 57 a vertical oscillating movement and the shafts are given a rotary movement in he opposite direction to that previously described.

it will be seen that the dump door operat ing mechanism may be operated from either side of the c r. it will also be seen that no further adju. tments are necessary after moving either of the lovers or 76 to the right or the left when it is desired to dump the load. ll hen. it is desired to restore the doors to their closed position, it is necessary only to iovc either of the levers 7 5 or 76 to their original position.

lit will be seen that the track bars 3% which support the shafts 82 are rigidly secured to the transverse framework which. lies across the bottom of the car. it will further be seen that this framework is of a very substantial construction. it will also be seen that the downward and inward slope of the "tract: bars counteracts any tendency of the said supporting shafts 32 to become accidentally dislodged from their normal positions. will. also be seen that the shafts 32 are substantially locked in their normal positions by one of the ratchet bars. The teeth of the ratchet bar d4; are normally in engagement with the ratchet wheels 40 and 42 and the weight of said ratchet bar causes this engagement to be maintained. The weight of the lovers 75 and 7 6 will be effective in holding the shaft 72 in the position occupied while the doors are being closed and there will be no tendency to raise the ratchet bar 44-. The levers 7 5 and 76 will naturally be left in this position by the operator when he has completed the closing movement of the doors.

.Vhile l have described more or less precisely the details of construction, I do not wish to be understood as limiting myself thereto, as I contemplate changes in form and the proportion of parts and the S11l)SlTil'U tion of equivalents as circumstances may suggest or render expedient without departing from the spirit of my invention.

I claim:

1. in a car having a dump door, a shaft for holding said door in a closed position, and a ratchet bar adapted to move said shaft with relation to its holding position.

2. In a car having a dump door, a shaft for holding said door in a closed position, a ratchet wheel fixed to said shaft, and a ratchet bar adapted to engage said wheel and to give said shaft a movement with relation to its supporting position.

3. in a car having a dump door, a shaft for holding said door in a closed position, a ratchet wheel fixed to said shaft, a ratchet bar adapted to engage said wheel and to give it a rotary motion when reciprocated, and means by which said rotary motion may cause a movement of said shaft w'th relation to its supporting position.

4. A car having a bottom comprising a dump door, a supporting shaft for said door, a ratchet wheel fixed on saio shaft, a ratchet bar meshing with and adapted to rotate said ratchet wheel in one direction when given a reciprocating movement, and means whereby the rotation of said shaft causes its displacement from its supporting posit-ion.

5. A car having a bottom comprising a dump door, a supporting shaft for said door, a ratchet wheel fixed on said shaft, a ratchet bar meshing with and adapted to rotate said ratchet wheel in one direction when given a reciprocating movement, means whereby the rotation of said shaft causes its displacement from its supporting position, and means by which said bar may be actuated from either side of the car.

6. A car having a bottom formed of doors, said doors being arranged in separate series oppositely disposed with relation to the central line of the car body, a supporting shaft for each series, a ratchet wheel fixed on each shaft, a ratchet bar meshing with each ratchet wheel and adapted to rotate said wheel in one direction when given a reciproeating movement, means by which the rotation of said supporting shafts causes their displacement from their supporting positions, and means by which said bar may be actuated from either side of the car.

7. A car having a bottom formed of dump doors, shafts for supporting said doors, a ratchet wheel fixed on each shaft, a ratchet bar meshing with each ratchet wheel and adapted to rotate said wheel in one direction when given a reciprocating movement, and means by which said bar may be actuated from either side of the car.

8. A. car having a bottom formed of dump doors, shafts for supporting said loors, a ratchet wheel fixed on each shaft, the teeth 011 said wheels being disposed in opposite directions, a ratchet bar having. separate seriesof teeth, the teeth in one series having an opposite slope to those in the other series in order to mesh with said wheel teeth, said ratchet bar being adapted to be moved into engagement with said wheels and to rotate said wheels when given a reciprocating movement.

9. A car having a bottom comprising dump doors, supporting shafts for said doors, a ratchet wheel on each of said shafts, a bar having ratchet teeth and adapted to reciprocate adjacent said wheels, said bar being adapted to engage the teeth of the wheel on one of said shafts and to cause rotation thereof when given a movement in one directionand to engage the teeth of the wheel on the other shaft andv to cause rotation thereof when given a movement in the other direction.

10. A car having a bottom comprising dump doors, supporting shafts for said doors, a ratchet wheel on each of said shafts, abar having ratchet teeth and adapted to reciprocate adjacent said wheels, said bar being adapted to engage the teeth of the wheel on oneof said shafts to cause a rotation thereof and to slide over the teeth of the other wheel when given a movement in one direction, said bar also being. adapted to engage said second named wheel to cause a rotation thereof and to slide over the teeth of the first named wheel when given a movement in the opposite direction.

11. A car having a bottom comprising dump doors, supporting shafts for said doors, a ratchet wheel on each of said shafts, a bar having ratchet teeth and adapted to reciprocate adjacent said wheels, said bar being adapted to engage the teeth of the wheel on one of said shafts and to cause a rotation thereof and to slide over the teeth of the other wheel when given a movement in one direction, said bar also being adapted to engage said second named wheel to cause a rotation thereof and to slide over the teeth of the first named wheel when given a movement in the opposite direction, and means whereby the rotation of said shafts causes a movement with relation to theirsupport ing positions.

12. A car having a bottoin'comprising a pair of dump doors, a supporting shaft for each door, a pair of ratchet wheels fixed on each shaft and having oppositely sloping teeth, a pair of ratchet bars adjacent said wheels, each of said bars being adapted to mesh with and operate two of the wheels, one of which is fixed on each shaft, and to cause a movement thereof with relation to its supporting position, and means for imparting a reciprocating movement to said bars.

18. A car having a bottom comprising a 'pair of dump doors, a supporting shaft for each door, a pair of ratchet wheels fixed on each shaft and having oppositely sloping teeth, a pair of ratchet bars adjacent saidwheels, each of said bars being adapted to mesh with and operate-two of the wheels,

one of which is fixed on each shaft, and to cause a movement thereof with relation to its supporting position, means under control of the operator for causing the engagement of either of said ratchet bars with its respective ratchet wheels, and means forimparting a reciprocating movement to said bars.

1%. A car having. abottom comprising a pair of dump doors, a supporting shaft 01" each door, pair of ratchet wheels fixed on each: shaft and having oppositely sloping teeth, a pair of ratchet bars adjacent'said wheels, each of said bars being adapted to mesh with and operate two of the wheels, one of which is fixed on each shaft. and to cause a movement of said shafts with relation to their supporting positions, means under control of the operator for causing the enga ement of either of said ratchet bars with its respective ratchet wheels and the disengagement of the other of said bars from its respective ratchet wheels, and means for imparting a reciprocating movement to said bars.

5; A car having a bottom comprising a pair of dump doors, a supporting shaft for each door, a pair of ratchet wheels fixed on each shaft and having oppositely sloping teeth, a pair of ratchet bars adjacent said wheels, each of said barsbeing adapted to mesh with and operate twoof the wheels, one of which is fixed on each shaft, and to cause a movement of said shafts with relation to their supporting positions, means under the control of the operator on either side of the car for causing the engagement of either of said ratchet bars with its respective ratchet wheels, and means for imparting a reciprocating movement to said bars.

16. A carhaving a bottom comprising a pair of dump doors, a supporting shaft for each door, a pair of ratchet wheels fixed on each shaft and having oppositely sloping teeth, a pair of ratchet bars adjacent said wheels, each of said bars being adapted to mesh with, and operate two of the wheels, one of which is fixed on each shaft, and to cause a movement of said shafts with relation to their supporting positions, means under the control of the operator on either side of the car for causing the engagement of either of said ratchet bars with its respective ratchet wheels and the simultaneous disengagement of the other of said ratchet bars from its respective ratchet wheels, and means for imparting a reciprocating movement to said bars.

17. Av car having a bottom comprising a pair of dump doors, a supporting shaft for each door, a pair of ratchet wheels fixed on each shaft and having oppositely sloping teeth, a pair of ratchet bars adjacent said wheels, each or said bars being adapted to mesh with and operate two of the wheels, one of which is lined on each shaft, and to cause a movement of said shafts with relation to their supporting positions, and means for imparting a reciprocating movement to said bars, said means being adapted to be operated from either side of the car.

18. A car having a bottom comprising a pair of dump doors, a supporting shaft for each door, ratchet wheels on each shaft for imparting movements in either of two directions to said shafts with relation to their supporting positions, a ratchet bar adapted to engage the ratchet wheels which produce a movement in one direction relative to said. supporting positions and another ratchet bar adapted to engage the ratchet Wheels which produce movement in another direction relative to said supporting positions, means for causing either of said ratchet bars to become engaged with its respective wheels, and means for actuating said ratchet bars.

19. in a car having a bottom comprising a plurality of dump doors, a supporting shaft for each door, a ratchet bar adapted to move said shafts with relation to their supporting positions, a carrying means for said ratchet bar, and means for actuating said bar.

20. In a car having a bottom comprising a plurality of dump doors, a supporting shaft for each door, a ratchet bar adapted to move said shafts with relation to their supporting positions, a carrying means for said ratchet bar, and means for actuating said bar, said actuating means being adapted to be operated from either side of the car.

21. In a car having a bottom comprising a plurality of dump doors, a supporting shaft for each door, a ratchet bar adapted to move said shafts with relation to their supporting positions, a carrying means for said ratchet bar, means for guiding said bar in its movement into and out of engagement with said shafts, and means for actuating said bar.

22. In a car havin a bottom comprising a plurality of dump doors, a supporting shaft for each door, a ratchet bar adapted to move said shafts with relation to their supporting positions, a carrying n'ieans for said ratchet bar, a reciprocating member carried by the frame for actuating said ratchet bar, said reciprocating member being adapted to permit a movement of said bar into and out of engagement with said shafts, and means for actuating said reciprocating member.

23. In a car having a bottom comprising a plurality of dump doors, a supporting shaft for each door, a ratchet bar adapted to move said shafts with relation to their supporting positions, a carrying means for said ratchet bar, said carrying means being adapted to move said ratchet bar into and out of engagement with said shafts at the will of the operator, and means for actuating said bar.

24:. In a car having a bottom comprising dump doors, supporting shafts for said doors, a plurality of ratchet Wheels on said shafts, a plurality of ratchet bars adapted to engage said wheels and move them with relation to their supporting positions, said bars being adapted to give opposite movements to said shafts, means for moving either of said bars into engagement With their respective shafts, a reciprocating member carried by the car body adapted to impart reciprocating movements to said bars, and means for actuating said reciprocating member at the will of the operator.

25. in acar having a dump door, a shaft for holding said door in a closed position, a ratchet bar adapted to move said shaft with relation to its holding position, and means by which the operator may actuate said ratchet bar.

26. In a car having dump doors, means for supporting said doors in their closed positions, means for displacing said supporting means from their supporting positions, and oscillating means at both sides of said car for actuating said displacing means.

27. In a car having dump doors, means for supporting said doors in their closed positions, means for displacing said sup porting means from their supporting positions, oscillating means at both sides of said car for actuating said displacing means, and means operable from either side of said car for causing said displacing means to impart movements in opposite directions to said supportin means.

2-8. In a car having dump doors, means for moving said doors to and from their closed positions, reciprocating members for operating said means, and oscillating means at both sides of said car for actuating said reciprocating members.

29. In a car having dump doors, means for moving said doors to and from their closed positions, reciorocating members for operating said means, means at both sides of said car for actuating said reciprocating members, and means operable from either side of said car for reversing the direction of movement imparted to said moving means by said reciprocating members.

30. In a car having a bottom comprising dump doors, shafts for supporting said doors in their closed positions and adapted to move to and from their supporting positions, reciprocating means adapted to engage said shafts and move them to and from their supporting positions, and oscillating means at both sides of the car, either of which is adapted to actuate said reciprocating means.

31. In a car having a bottom comprising dump doors, shafts for supporting said doors in their closed positions and adapted to move to and from their supporting positions, means for moving said shafts relatively to said positions, and oscillating means at both sides of the car, either of Which is adapted to actuate said means for moving the sup porting shafts on both sides of said car.

32. In a car having a bottom comprising dump doors at both sides thereof, means for supporting and operating said dump doors, and oscillating means at both sides of said car, either of Which means is adapted to actuate said means for supporting and operating said doors at both sides of said car.

In testimony whereof, I have subscribed my name.

WILLIAM J. HOSGEIT.

I/Vitnesses 1 IENRY '.A. PARKs, ANNA L. WALTON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents, Washington, D. C."

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