US837379A - Rotary dump. - Google Patents

Description

No. 837,379 PATENTED DEC. 4, 1906. A. F. BLAIR & L. J. RUBB. ROTARY DUMP.

APPLIOATION FILED NOV. 27. 1905,

4 SHEETS-SHEET 1.

WITNESSES. I NVENT RS I PATENTED DEC. 4, 1906. A. F. BLAIR & L. J. ROBB.

ROTARY DUMP.

APPLICATION FILED NOV.21.1905.

4 SHEETS-SHEET 2 INVENTORS] wn'NEssEs. pbw wt P B B O R T T & Du I A L B u A ROTARY DUMP.

APPLICATION rum) Nov. 27,1905.

4 SHBETSSHBET 3 WITNESSES.

No. 837,379. PATENTED DEC. 4, 1906. A.'P. BLAIR & L. J. ROBB.

BOTARY DUMP. APPLICATION FILED NOV. 27.19054 4 SHEETSSHBET 4- INVENTORS Mr? M Q WW/(av WITNESSES.

UNITED STATES PATENT T ies.

ALLEN F. BLAIR, OF CRAF TON, AND LEWIS J. ROBB, OF PITTSBURG, PENNSYLVANIA, ASSIGNORS TO HTZYL & PA'T ERSON INCORPO- RATED, A CORPORATION PENNSYLVANIA.

ROTARY DUMP.

Specification of Letters Batent.

Patented Dec. 1906.

To all whom, it may concern/.-

Be it ,known that we, ALLEN F. BLAIR, a resident of Grafton, and LEwrs J. Bone, a l resident of Pittsburg, in the county of Allegheny and State of Pennsylvania, have ini vented a new and useful Improvement in Rotary Dumps; and we do here by declare the following to be a full, clear, and exact de scription thereof.

Our invention relates to rotary dumps for dumping the contents of coal-cars or like receptacles.

Our invention comprises the novel features hereinafter set forth and claimed.

To enable others skilled in the art to make and use our invention, we will describe the same more fully, referring to the accompanying drawings, in which Figure 1 is a plan view of our improved car-dump, in connection with the tracks leading up thereto as well as therefrom. Fig. 2 is a side view of the rotary dump, on an enlarged scale. Fig. 3 is an end view. Fig. 4 is an enlarged detail of the driving l and operating mechanism. Fig. 5 is a detail of the stopping means. Figs. 6 and 7 are dotail views of the friction-brake, and Fig. Sis a detail of the treadle-rail.

Like numerals indicate like parts in each of the figures.

In the drawings the numeral 2 designates a suitable platform with the track thereon I loading to the dump. Beyond the dump is g l he found dcsirahle to vary the speed of the l rotation of the car-support in order to cause the inclined platform 4 with the track 5 laid thereon, by means of which the empty cars after being dumped pass along the track 5 to 1 a suitable kick-back, from which they re-; turn and are shifted off onto the track 6, whence they may pass by gravity oil the tipple.

The car-support 7is carried hythe frame 8, j which may be constructed of suitable beams, sa d frame having the rollers i) mounted therein, so to support said ar-su )port 7. This car-support may he composed of the circular end pieces 10, connected by the inciosing walls 1.1. The car-support has the plat form 12, upon which are laid the rails H, which support the wheels i4 of the car 35. g Secured to the car-support areihe guard-l rails 16, which are adapted to engage the; wheels 14 of the car and prevent the displzucrl nientof thecarduring thedlunpingoperrd ion.

The car-support is provided with the receptacle or pan 1?, which is adapted to receive the coal from the Carlo when the car-support is rotated. This receptacle is composed of the curved portion 17 a and the plate 17*, supported and braced by the anglestrips 17, and is of sufficient size to receive the contents of the car and is open at the end 18, so that when said car-support rotates the .contents of the receptacle will be discharged therefrom, as fully hereinafter set forth. The circular end pieces 7 have the flanges 19, which are adapted to enter the grooves in the rollers 9, said flanges moving in said rollers as the car-support is rotated.

In order to rotate the car-support, a motor 23 may be employed, said motor having the pinion 24, which engages with the gear-wheel 25 on the shaft 26. A pinion 27 on the shaft 26 engages the gear-wheel 28 on the shaft 29, said gear-wheel normally running loosely on said shaft. Clutch mechanism 30, of any suitable form, secured to the shaft 29, is adapted to be thrown into connection with the gear-wheel 28 to rotate the shaft 29. This clutch mechanism is operated by the lever 31, which is connected by the rod 32 to 'the slide-bar 33, ,which is connected to the clutch by the arm 34.

A gear-wheel 35 on the shaft 29 meshes with the large gear 39 on the car-support 7. In thisnannor power is communicated from the motor to r01 ate the car-support. 1t wiil it to rotate at a high speed during the first part of the rotation, then at a reduced speed, and "finally again. at a higher. speed as it comes around to the point of starting. cordingly we havcprovidcd the variable-speed controller 40, which is of the ordinary construction for controlling the speed of the motor, said controller ha ving the sprocket-wheel 41, which is connected by the chain 42 with the small sprocket-wheel 43 on the shaft 29. This speed-controller"is of a common construction used in connection with electric motors, andvas we do not claim this feature we do not deem it nccessar r to illustrate it in detail.

.111 the track. 23 is the treadle-rail 4.4, which is adapted to he engaged by the tread of the wheels on one side of the oncoming car. said ea'mve rail being supp r ed by the pivotal 45, so as to e depressed and moved forward by the action of the oncoming car. Connected to the link is the link 46, which is connect edby the horizontal lever 47 with the rod 48,

. said rod carrying a spring 49 at its forward end, into osed between the abutment 50 and the co lar 51 on said rod. The rod 48 is in alinement with the rod 52, which is slidable in the hangers 53. Secured to the rod 52 is the fixed block 54, to which is connected the crank-arm55. The'crank-arm 55 is secured to the shaft 57, and to each end of said adapted to an age the forward wheels of the car. The shat 57 engagesthe slots 59in the brackets 60, and springs 61 act to normally shaft are secured the stops 58, which are bold said crank-arm 55 in engagement withthe wheels of the car. The crank-arm 56 is secured to the movable block 62 and to the shaft 63, and to each end of said shaft are secured the stops 64, which are depressed by the wheels of the oncoming car.

spring 65 is interposed between the movable lock 62 and thehanger 53/ The outer end of the rod 52 has the head 66.'

Pivotedat 72 is the-bent lever 73, carrying at its upper end the idle roller 74, adapted'to ing frame 7% com rises the block 77,- pivoted bracket 79?.

to theframe, sai

block havin the strap 7 7 which acts as a guide and older for the latch-bar 78. Secured to the .lower end of the bar 78 is the nut 78?, which has the OfiSBL' engaging the guide-stra 7 7 so as to be free to move free y up an down thereon, but held against rotary movement. A spring 78 is interposed between said nut 78" and the u perend of the guide-strap 77 The latch.- ar 78 passes through an opening in the upper end of the strap 77*, and at the upper end of said bar is the finger 78".

A pawl 79 is pivoted to the bracket '79,

and connected to said pawl is the pin 80,

which passes through an opening in the A sprin 80 is into osed between the head of sai pin and sai bracket, whereby said pawl is normally forced inward. Below the pawl 79 is the adjustable rest or sto 81, consisting of a screw passing up throng vthe bracket 79 and forming a rest for the finger 78 of the bar 78. An arm 82 connects the lever 73 to the slide-bar 33.

The slide-bar 33 has the cam-plate 33, which is adapted tonormally engage the upper end of t 1e pawl 83 and hold said pawl out of engagement with the ratchet-wheel 84, held between the plates 85 and 86 of the brake-wheel 87 The brake-wheel 87 is rigidly mounted on the shaft 29, and the plates 85 and 86 thereof are secured together by the bolts 88. The plates together form the annular outwardly-flaring seat 89, which receives the tapering inner rim of the ratchet-wheel 84. The p ates bind said Wheel 84 by friction, and when the pawl is thrown into engagement 'with said wheel said wheel acts to brake the wheel 87, as will more fully hereinafter appear.

When our improved rotary car-dump is in operation, aloaded car is run from the track 3 onto the track 13 of the car-support and the wheels engaged by the stops 58 and 64.

The lever 31 is then 0' erated to move the bar 33 and throw the c utch 30 into engagement with the gearewheel 28, while at the same time the latch-bar 78 is withdrawn from theEcar-support by the same operation.

Power is thus transmitted from the motor to rotate the car-support, and by means of the variable-speed controller the rotation begins at a high rate of speed. As the car-support rotates the contents of the car 15 are dis charged into the receptacle 17, and by the time said receptacle gets around to the point where its contents are discharged from the opening 18 the speed of the motor isreduced, so that the contents of the receptacle 17 are discharged gradually to a chute or other receiving device located underneath the carsupport. After the contents have been dis charged from the receptaple 1.7 the speed of the motor increases and carries the car-support around to its original position of startmg. During this latter period of rotation the cam 75 moves in contact with the upper end of the lever 73 and moves said lever to the left, acting thereby to move the slide-bar 33 sufficiently to withdraw the cam-plate 33 to permit the pawl 83 to drop into engagement with the ratchet-wheel 84. This acts to gradually reducethe speed so as to stop the car-support without a sudden jar. The

movement of the lever 73 to the left further acts through the rod 76 to move the rocking frame 77, so as'to bring it into a substantially vertical position, as shown in dotted lines, Fig. 4. As said rocking frame-moves ICC IIO

into this position, the finger. 78 of the bar 78 strikes the pawl 79, and said pawl yields and then springs back over said finger, while said finger rests upon the rest 81. This looks the rotary support against further rotation until the finger is withdrawn; but in casesaid ro tary support should vibrate before coming to a complete standstill it is free to do so, as the latch-bar 78 is free to yield vertically under such pressure. By this construction the sudden jolt in locking the rotary support is avoided and the strain onsame relieved. The next car is then advanced with its load, and when the forward wheels strike the treadle rail 44 said rail is depressed and pushed forward so as to force forward the rod 48. The rod 52 being in line with the rod 48 said rod 52 is advanced and through reo- .by gravity to the kick-back.

lowered. The further advance of the loaded car pushes the empty car from the car-support onto the track 5, along which it moves When the loaded car is in position on the car-support. the spring returns said rod 52 to normal position and throws the stops 58 up into position to engage the front wheels of the car. The operation of dumping 18 again repeated. In this manner with great rapidity the cars can be advanced onto the car-support and rotated and be pushed from the car-support by the oncoming car in quick succession. By having the receptacle in the ear-support to receive the contents from the car during the rotation of the car-support the height which the coal has to fall is greatly reduced, and when said receptacle comes around into position to be discharged the contents fall therefrom without unduejarring or breaking up.

WVhat we claim is 1. The combination with a suitable frame, of a cylindrical rotary car-support, a receptacle on said support at its circumference and curved to conform with the curve of said support, and means for discharging the material from said receptacle.

2. The combination with a suitable frame, of a cylindrical rotary car-support, mechanism for rotating said support, a receptacle on. said support at its circumference and curved to conform with the curve of said support, and means for discharging the material from said receptacle.

3. The combination with a suitable frame, of a rotary car-support, a stop adapted to enthe wheels of the car on said support, a longitudinally-movable rod to which said stop is connected, a second longitudinallymovable rod in the path of said first rod, and means for moving said second rod by the oncomi'ng car.

4. The combination with a suitable frame, of a rotary car-support, brake mechanism, and means for operating said brake mechanism automatimilly by the rotation of said support.

5. The combination with a suitable frame,

lever, a cam on said support adapted to en'- gage said lever, and connections between said lever and said brake mechanism.

' o. The combination witha suitable frame, of a rotary ear-support, brake mechanism comprising a ratchet-wheel held between the faces of a wheel rigidly mounted on the power-shaft, a pawl adapted. to engage said ratchet, and means for throwing said pawl into and out of engagement with said ratchet-wheel.

7. The combination with a suitable frame, of a rotary car-support, brake mechanism comprising a rnlelnt-wlnel held between the faces of a wheel rigidly mounted on the power-shaft, a pawl adapted to engage said ratchet, and a slidable bar having a can adapted to engage said pawl, and means for throwing said pawl into and out of engagement with said ratchet-wheel.

8. The combination with a suitable frame, of a rotary car-support, brake mechanism comprising a ratchet-wheel held between the faces of a wheel rigidly mounted on the power-shaft, a pawl adapted to engage said ratchet, a lever connected to said bar, and a cam on said car-support in the path of said lever.

9. The combination with a suitable frame, of a rotary car-support, a latch-bar adapted to ei'igage said support, and means for throwing said latch-bar into engagement with said support by the rotation of same.

10. The combination with a suitable frame, of a rotary car-support, a latch-bar adapted to engage said support, a lever connected to said latch-bar, and a cam on said support adapted to engage said lever.

11 The combination with a suitable frame, of a rotary carsupport, a latch-bar adapted to engage said support, a rocking frame supporting said latch-bar, a lever connected to said frame, and a cam on said support adapted to engage said lever.

12. The combination with a suitable frame, of a rotary car-support, a yielding latch-bar adapted to engage said support, a lever connect d to said latch-bar, and a cam on said supra rt adapted to engage said lever.

13. The combination with a suitable frame, of a rotary car-support, a vcrtically-yielding latch-bar adapted to engage said support, a lever connected to said latch-bar, and a cam on said support adapted to engage said lever.

14. The combination with a suitable frame, of a rotary car-support, a vert' rally-yielding spring-actuated latch-bar adapted to engage said support, a lever connected to said latchbar, and a cam on said support adapted to engage said lever. v

15. The combination with a suitable frame, of a -rotary car-support, a latch-bar adapted to engage said support, a rocking frame sup porting said latch-bar, a spring interposed between. said rocking frame and said bar, a lever c" nnected to said frame, and a cam on said support adapted to engage said lever.

16. The combination with a suitable frame, of a rotary (arr-support, a pawl and a rest on said support, a yielding latch-bar adapted to engage said pawl and rest, a lever connected to said bar, and a cam on said support adapted to engage said lever.

in testimony whereof we, the said ALLEN l BLAIR-mid liuwis .l. Rona, have hereunto set our hands.

ALLEN F. BlJAlll. LEWIS J. ROBB. \Vituesses:

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