US1224404A - Dumping-car. - Google Patents

Description

A. C. MURPHY.

DUMPING CAR.

APPLICATION FILED JULY 3. 1914.

Patented May 1, 1917.

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DUMPING CAR.

APPLICATION FILED JULY 3.1914.

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DUMPlNG CAR.

APPLICATION FILED JULY $1914.

Patented May 1, 1917.

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DUMPING CAR.

APPLICATION FILED JULY 3. I914- Patented May 1, 1917.

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A. C. MURPHY.

DUMPING CAR.

APPLICATION FILED JULY 3. I914- PittQiltQd May 1,1917.

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ALI SERT C. MURPHY, OF NEW YORK, N. Y.

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Specification of Letters Patent.

Application med July 3, 1914. Serial No. 848,728.

To aZLwkom it may camera:

Be it known that I, ALBERT C. MURPHY,

a citizen of the United States, and resident struction of a dumping car which may be operated from one or both ends of the car for dumping the load to either side of the track, and providing automatic side doors for the body for releasing the contents and guiding them to a distance from the road bed when the body has been tilted into a discharging position.

My invention consists of certain constructions which are fully described hereinafter and more particularly defined in the claims, and these will be better understood by reference to the drawings in which Figure 1 is a side elevation of a dumping car embodying my improvements; Fig.2 is a plan view of the same with the tabs over the end platforms removed; Fig. 3 is an enlarged side elevation of the left hand portion of Fig. 1 showing the structure more in detail; Fig. 4 is a transverse section of the vehicle on line mw 'of Fig. 3; F ig, 5 is a transverse sectional elevation on line y-y of Fig. 3; Fig. 6 is a cross sectional view illustratin the details of the locking device or latch or holding the doors closed; Fig. 7 is a sectional elevation on line tt of Fig. 3 showing the means for operating the car body; and Fig. 8 is a side elevation with a portion in section of the operating means for tilt-ing the body.

2 is a girder frame extending throughout the length of the car and constituting the main frame of the car. Near each end this main frame'is provided with the pivot block 3 to which the trucks 4 (diagrammatically indicated) are pivoted and which may be of any suitable construction. Furthermore, adjacent to the pivot blocks the main frame is provided with lateral .extensions 2 at each side and which have the shoe portions 3 adapted to rest upon the truck frame, the said parts 2, 3 and 3 being in connection with the girder frame 2 constituting the bolster of the main frame for transmitting the weight of the car upon the truck frame.

Each end of the main frame 2 is provided lines in Figs. 4 and 5.

on its under side with rockers 1 shelter during transportation and when operating thepower transmitting mechanism 25, employed in connection with the tilting of the car body 7. Preferably there is one of these platforms and operative mechanism at each. end of the car, but this is not essential as the car body may be operated wholly from one end of -the car if so desired.

The car body is preferably formed of a longitudinal box body of sheet metal having side openings for the discharge of the contents, said openings being normally closed by hinged doors 9, the latter being hinged at 10 to the lower sides of the body and deta'chably locked in closed position at their upper' ends by latches or looks 11 carried upon and operated by rock shafts 12. These rock shafts are suitably .journaled in bearings carried upon the top side rails 7 of the body, and as shown in Fig. .6 the latches 11 are loosely hinged upon the shaft 12 and are provided with elongated slots 11 into which project studs 12 of the shaft, said construction being such that the latch 11 may be lifted by hand into the dotted position (Fig. 6) when closing the door without the rocking shaft 12, whereby each door may be closed by the workmen without having to manipulate the car body. When the doors are to be automatically opened the" rock shafts 12 rock, and this through the stud 12 turns the latch 11 into the dotted position to release the door 9 and allow it to fall as indicated in dotted There may be a number of doors 9 on each side of the body according to its length, so as to reduce the amount of weight which would have to be lifted by the workmen in closing the doors at any one time. When the doors drop into the open position they are held in oblique relation by means of chains 9 and springs 9",the latter being connected to the top side rails 7 and the former connected with the doors near their free ends. When the door drops by gravity after being released its inertia on assuming the position indicated in dotted lines is taken up by the elasticity of the springs 9 and in its open position acts as a chute or guiding apron for guiding the contents of the load of the body to a distance away from the track upon which the vehicle runs. The body 7 is which rock upon the transverse beds 18, the rockers 17 being preferably provided with teeth and rovided Patented May 1, 1917.

the beds with apertures for engagement by the teeth and which prevent lateral abnormal displacement of the rocker upon the bed. The rockers are so made that as the said rod telescoping witha tube 15, the lower end of which is hinged at 16 to the bolster of the truck frame as clearly indicated in Fig. 4. Similar mechanism is arranged to operate on the other rock shaft for controlling the doors on the opposite side of the body as indicated in dotted lines in Fig. 1, said mechanism being arranged at the distant end of the body. By thismechanism it is evident that when the body is tilted the rising side of the body will draw the rod 14 upward to a greater or less extent out of the tube 15 without rocking the rock shaft, but

on. the descending side of the body the lower end of the rod l l will reach the bottom of the hole in the tube 15 and the further depression of the body will cause the arm 13 to be locked relative to thebody and this will impart a rocking motion to the shaft 12 and the latches or looks 11 to raise them and liberate the door as indicated in dotted lines.

When the body is returned to its horizontal position the locks or latches 11 will have re.

turned to their normal positions shown in Figs. 4 and 5 and at this time the doors 9 may be lifted and moved back into closed position, but to enable this to be done the locks and latches 11 must be raised to permit passage of the free ends of the doors and this IS permitted by having the locks or latches free to be lifted on the rock shaft 12 by hand manipulation as heretoforedescribed in connection with Fig. 6. e r

The body, as heretofore stated, is a box shaped frame preferably strengthened by suitable longitudinal girders 7*, (Fig. 5), the transverse rockers 17 being securely positioned upon the central girder 7 d and between the two longitudinal girders .7. Moreover, the. body is reinforced transversely by means of transverse girders 8 which, as shown in Fig. 1, are three in number and these extendpreferably about half way up throughout the main portion of their length and wholly up to the upper portion of the body at each of their lateral ends, said construction being more fully illustrated in Fig. 5. Thesetransverse gir ers act as divisions to properly guide the load in disends of the car.

larly when the car tilted if so 7 and 7* arm Bloutward to release the lever 33 lation and adapted to be operated from both At each side of the longitudinal frame 2 and journaled in the lateral extensions 2 thereof are the longitudinal shafts 19, said shafts extending to the platforms at each end of the girder frame and provided with one or more pinions 20, preferably held in position-within the lateral extensions 2 of the girder frame. These pinions engage racks 21 which are hinged at their upper ends at 22 to the tilting body respectively at each side of the transverse rockers. These racks 21 are preferably held into engaging position with the pinions by the guide rollers 23 which are also journaled in the lateral extensions 18 of the girder frame. These lateral extensions 18 of the girder frame are preferably reinforced by the transverse girders 2 which extend the full width, of the girder frame. At' one end of each shaft 19 is a sprocket wheel 24 and at the other end is a lock wheel 31 having a notch 32 in its periphery. These sprocket wheels and locking wheels are so arranged that there is one.of each under each of the platforms 5 so that the car body may be tilted by'the shaft having the sprocket wheel under the platform at which the operator stands, and the car-body may be locked by a locking lever 33 engaging the notch in the locking wheel 31 under the said platform on the other of the shafts 19. This locking of the car body may be employed more particubody is in the horizontal position during transportation, but it may be also temporarily locked when the body is desired. As shown in Figs. 7 and 8 the locking lever 33 in itslocking position has the handle end raised andsupported over a lug 35 on a spring arm 34 which is bolted to the main frame 26 of the power applying devices which are employed I to tilt the body. Assuming the parts are 1n thefposition shown in Figs? and 8 with the horizontally positioned for transportation, and it should be desired to tilt the body for discharging the load at the place of destination, the first operation would be to pull the upper end of the spring and permit it to drop into the position indicated in dotted lines in Fig. 7 in which it is disengaged from the locking wheel 31. The car car body body may then be tilted by rotating the shaft 19 having the sprocket Wheel and which preferably operates upon the rack 21 to push upward, it being more desirable that the tilting shall be produced by a thrust rather than by a pull. I, however, do not restrict myself in this respect.

It will now be seen that if the hand Wheel 29 be rotated the speed reducing gears 28 will rotate the sprocket pinion 27 and this, through the sprocket chain 30, is made to rotate the sprocket wheel 24 and its shaft 19 to tilt the body. Owing to the tendency of the loaded body to return to its normal position it is desirable that the hand wheel and pinion shall be held against rotating backward, and yet have provision when desired for rotation in either direction. To provide such means I prefer to employ a detent wheel 36 which may be varied much like an ordinary gear. Engaging with this detent wheel 36 is a pivoted pawl device 37 which has engaging teeth arranged to operate in both directions. Pivoted to the main frame 26 above the pawl is an arm 38 and to this arm is connected a spring 39 whose other end is connected with the pawl 37 above its pivotal point. When the arm 38 is thrown into the position shown in Fig. 7 the spring pulls the pawl into engagement at the right hand side of the detent wheel and it will now b seen that the said wheel may be rotated to the right like the hands of a watch, but cannot rotate in the opposite direction. If, however, the arm 38 is thrown over to the left of the main frame 26, then the other side of the pawl comes into contact with the detent wheel and the hand wheel then may rotate freely to the left or in a reverse direction to the hands of a watch and will be locked against rotation in the other direction. It is therefore possible for the operator to throw this arm 38 in either direction according to whether the wheel is required to rotate to the right or to the left to suit the particular tilting of the car body which is required. It is to be kept in mind that in the tilting of the body one of the shafts 19 rotates in one direction and the other in the opposite direction so that if an operator were to stand in front of the hand wheels in each of the-two cabs, the two hand wheels will necessarily rotate in opposit directions, and if the car" is to be operated solely from one end, then th operator mustfir'st disengage the looking lever 33 at the opposite end of the car and also throw the arm 38 at that end so that it will permit the freedom of movement of the hand wheel, and then he may operate the car body from the opposite end of the car under perfect control. If the load is very heavy and it is desirable to operate the tilting from each end of the car, then an operator will be on each platform and will accordingly manipulate the parts to cooperate in the operation of the body. -It will thus be seen that the body may be tilted or rocked from each end of the car, but I do not restrict myself to this use of double power mechanism and double locking mechanism as it is manifest that if desired the car may have only one oper ating platform and one set of operating mechanism for the two shafts, one of which would act as a locking shaft and the other as a tilting shaft. It is also manifest that with the two platforms the entire operation of the vehicle body may be conducted with the use of one shaft and the pinion and rack connections, as in this case this shaft may b locked in by the mechanism at one end and may be operated when unlocked by the mechanism at the other end, these variations being within the capacity of the engineer in designing and using the car.

It is also evident that while I have shown no means for operating the car body, any of the usual and well known power devices may be employed in lieu thereof if so desired, but for ordinary purposes hand operated means is found to be entirely satisfactory.

In the tilting of the body upon the main girderframe the rockers and beds are so constructed that the center of gravity of the loaded body moves laterally commensurate with the shifting of'the axis of oscillation between the rockers and beds so that at all times a minimum power will be sufficient to rock the car body. The means of pivoting and rocking the car body may, however, be varied without deviating from the essential requirements of the invent-ion.

I have shown my improved car construction in the form which I have found well adapted for commercial requirements, but I do not restrict myself to the minor details as these may be varied in many ways without departing from the spirit of the invention.

Any matters shown and described in this application relating to the tilting box body and the means for operating the same, and also to the rocker means such as the limit-- ing abutments therefor, and not claimed herein, form subject matter of my application Ser. No. 775,462, filed June 24, 1913; and neither do I make claim in thisapplication to the box body having the intermediate transverse divisions and with side doors, as the same also has been claimed in my said application Ser. No. 775,462.

Having thus described my invention, what I claim as new and desire to protect by Letters Patent is a 1. In a.dumping car, the combination of a longitudinal car frame having a plurality of transverse rocker beds, a box body arranged above the longitudinal frame and having a 3 plurality of rockers on its "under side adapted to the beds said body provided with discharge apertures at its sides, doors hinged to the sides of the body to; normally close the discharge apertures, a longitudinal shaft journaled 'on the longitudinal car. frame and extending to the end portion thereof and located wholly below and independent of the box body, non-flexible mechanical connections between the shaft and the body for tilting it in either direction, a platform at the end of the car, and means independent of the body located at the end of-the car frame adjacent to the platform for rotating the longitudinal shaft whereby the box bodymay be rocked in either direction to discharge from either'side of thecar.

2. In a dumping car, the combination of a longitudinalcar frame having a plurality of transverse rocker beds, a box body arranged above the longitudinal frame and having a plurality of rockers on its under side adapted to the beds, said body provided with discharge apertures at its sides, doors hinged to the sides of the body to normally close the discharge apertures, a longitudinal shaft j ournaled on the longitudinal car frame and extending to the end portion thereof and located wholly below and independent of the box body, non-flexible mechanical connections between the shaft and the body for tilting it in either direction, a platform at the end of the car, means independent of the body located at the end of the car frame adjacent to the platform for rotating the'longitudinal shaft whereby the box body may be rocked in either direction to discharge from either side of the car, and unitary means for locking the longitudinal shaft against rotation in either and both directions at the will of the operator.

3. In a dumping car, the combination of a longitudinal car frame having a plurality of transversely arranged rocker beds and a plat form at each end, a-box body arranged above the longitudinal frame and having a plurality of rockers on its under side adapted to the beds, said body provided with discharge doors on both of its sides, two longitudinal shafts journaled on the longitudinal car frame independent of the body and one of said shafts extending to one of the platforms and the other extending to the other platform, mechanical connections between car body and the respective shafts whereby the rotation of each of the shafts may tilt the box body in either direction so as to dis-' charge from either side of the car, and power applying means arranged at each platform for rotating the respective shafts.

4. In a dumping car, the combination of 'a car frame having a platform at one end and a plurality of transverse rocke'r beds, with a box body arranged above the car frame and having a plurality of rockers on its under side adapted to the beds whereby the body may be rocked to incline said body and lower the dumping side thereof to either side of the car frame, side doors hinged to said body, two longitudinal shafts journaled in the car frame respectively upon each side of the rocker beds and the ends of said shafts extending to the platform end of the car frame, connecting means between the said shafts and the body upon opposite sides of the rockers for oscillating the body, mechanical means adjacent tothe platform for rotating one of the longitudinal shafts, and means also adj acent to the platform for locking the other longitudinal shaft against rotation in either and both directions at the will of'the operator.

' 5. In a dumping car, the combination of a car frame having a platform at one end and a plurality of transverse rocker beds, with a box body arranged above the car frame and having a plurality of rockers on its under side adapted to the beds whereby the body may be rocked to incline said body and lower the dumping side thereof to either side of the car frame, side doors hinged to said body, two longitudinal shafts journaled in the car frame respectively upon each side of the rocker beds and the ends of said shafts extending to the platform end of the car frame, connecting means between the said shafts and the body-upon opposite sides of the rockers for oscillating the body, mechanical means adjacent to the platform for rotating one of the longitudinal shafts, means also adjacent to' the platform for locking the other longitudinal shaft against rotation in without shifting his position.

6. In a-dumping'car, the combination of a car frame having a platform at one end and a plurality of transverse rocker beds, with a box body arranged above thecar frame and having a plurality of rockers on its under side adapted to the beds whereby the body may be rocked to incline said body and lower the dumping side thereof to either side of the car frame, side doors hinged to said body,

two longitudlnal shafts journaled in the car frame respectively upon each side of the' rocker bedsand the ends of said shafts ex tending to the platform end of the car frame, connecting means between the said shafts and the body upon opposite sides of the rockers for oscillating the body, mechanical means adjacent to the platform for rotating above the longitudinal frame and having-a plurality of rockers on its under side adapted to the beds, said body provided with dis charge apertures at its sides, doors hinged to the sides of the body to normally close the discharge apertures, a longitudinal shaft journaled on the longitudinal car frame and extending to the end portion thereof and located wholly below the box body, a platform at the end of the car, means at the end of the car frame adjacent to the platform for rotating the longitudinal shaft whereby the box body may be rocked in either direction to discharge from either side of the car, means for locking the longitudinal shaft against rotation in either and both directions at the will of the operator during the transpermitting the shaft to be rotated in one direction and held against rotation in the opposite direction when the box body is tilted or being tilted.

car frame having a platform at each end and a plurality of transversely arranged rocker beds intermediate of the platforms, a box body arranged above the bed and having a plurality of rockers supported by the beds whereby the body may be rocked for discharging the contents thereof to' either side of the car frame two longitudinal shafts journaled in the car frame and respectively arranged below the body on each side of the beds and said shafts extending between the platforms, connecting means between the said shafts and the box body upon the opposite sides of the rocker support therefor whereby an upward thrust or a downward pull may be exerted upon the body for tilting, mechanical means on each of the platforms for rotating a different one of the two shafts whereby the box body may be rocked from either end of the car, and means for locking the shafts against rotation in one direction when the box body is tilted or being tilted.

9. In a dumping car, the combination of a car frame having a platform at each end and a plurality of transversely arranged rocker beds intermediate of the platforms, a box body arranged above the bed and having a plurality of rockers supported by the beds 6 whereby the body may be rocked for disportation of the car, and separate means for 8. In a dumping car, the combination, of a charging the contents thereof to either side of the car frame, two longitudinal shafts journaled in the car frame and respectively arranged below the body on each side of the beds and said shafts extending between the platforms, connecting means between the said shafts andthe box body upon the opposite sides of the rocker support therefor whereby an upward thrust or a downward pull may be exerted upon the body for tilting, mechanical means on each of the platforms for rotating a different one of the two shafts whereby'the box body may be rocked from either end of the car, means for looking the shafts against rotation in one direction when the box body is tilted or being tilted, and separate means upon each platform for respectively locking the shafts against rotation in either and in both'directions at the will of the operator, said means at one platform locking a different shaft from that which is operated by the mechanical means at the same platform.

10. In a dumping car, the combination of a longitudinal frame, a box body supported upon the longitudinal frame and arranged to be tilted to dump to either side thereof, doors hinged to the lower parts of the sides of the box body and adapted to open downward to guide the contents being discharged from the tilted body, separate flexible connecting means each having one end connefeted to a door and the other end to the upper part of the body for holding the doors in inclined position during the dumping operation said independent means each provided with a separate spring to take up the inertia of the fallingdoor, and mechanical means for locking the doors in their closed positions.

11.. In a dumping car, the combination of a longitudinal car frame, a box body supported upon the longitudinal frame so as to be tilted in either direction whereby the contents may be dumped to either side of the car, two longitudinal shafts journaled in the longitudinal frame below the box body and on each side of its support and the ends of said shafts extending to oneend of the longitudinal car frame, mechanical connections between the shafts and the box body at each side of its support, a notched disk secured to the end of one of the longitudinal shafts, a sprocket wheel secured to the other of the longitudinal shafts, operable means arranged at the end of the car frame for operating the sprocket wheel and holding it against rotation in one direction during the tilting of the body, and hand operating means. also adjacent to the end of the car frame for lock ing and unlocking the notched disk.

12. In a dumping car, the combination of the longitudinal car frame having a plurality of transverse rockerbeds and a platform at each end, a box body structure arranged above the longitudinal frame and having a plurality of rockers on its under side adapted to the beds to freely rock thereon, said body structure provided with disshafts and the box body structure at opposite sides of the rockers whereby the rotation of the shafts will'rock the body structure upon the beds in both directions to dump to either side of the car as desired, means at one platform of the car frame for rotating one of the longitudinal shafts, and means at the other platform for rotating the other of the longitudinal shafts.

13. In a dumping car, the combination of the longitudinal car frame having a plurality of transverse rocker beds, a box body arranged above the longitudinal frame and having a plurality of rockers on its under side adapted to the beds said body provided with discharge doors on its sides, a longitudinal'shaft journaled in fixed bearings on the longitudinal car frame independent of and below the body and extending to the end portion of the car frame, a mechanical connection between the longitudinal shaft and'the box body whereby the rotation of the shaft will rock the body upon the beds, means at the end of the car frame independent of the body for rotating the longitudinal shaft in either direction, and separate manually controlled means for locking the longitudinal shaft against rotation in either and both directions at the will of the operator.

14. In a dumping car, the combination of the longitudinal car frame having a plurality of transverse rocker beds, a box body arranged above the longitudinal frame and having a plurality of rockers on its under side adapted to the beds said body provided I longitudinal shaft consisting of a sprocket wheel on the longitudinal shaft, a sprocket pinion arranged above the shaft on the car frame, a sprocket chain connecting the sprocket wheel and pinion, a hand wheel,

power multiplying gearing between the hand wheel and the sprocket pinion, and locking means for locking the pinion and hand wheel against rotation when the box body is tilted.

15. In a" dumping car, a longitudinal car frame having a plurality of transverse rocker beds and a platform at the end thereof, a box body structure arranged above the longitudinal frame and having a plurality of rockers on its under side adapted to the beds said body provided with discharge doors on both of its sides, a longitudinal shaft journaled in the longitudinal car frame and extending to the platform thereof, a mechanical connection between the longitudinal shaft and the box.

body whereby the rotation of the shaft in one direction will tilt the body to discharge to one side of the car and the rotation of the shaft in the opposite direction will tilt the body to discharge to the other side of the car, means at the car platform for rotating the shaft in either direction, and devices for locking the shaft against rotation toenable the body to be held in tilted position.

In testimony of which invention, I hereunto set my hand.

ALBERT C. MURPHY Witnesses:

DOROTHY F. WATERBURY,

JOHN GARGAN.

the combination of

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