US1654919A

US1654919A - Car dumper

Info

Publication number: US1654919A
Application number: US97572A
Authority: US
Inventors: Arthur F Case
Original assignee: WELLMAN SEAVER MORGAN CO
Current assignee: WELLMAN SEAVER MORGAN CO; WELLMAN-SEAVER-MORGAN Co
Priority date: 1926-03-26
Filing date: 1926-03-26
Publication date: 1928-01-03
Anticipated expiration: 1945-01-03

Description

Jan; 3, 1928.

A. F. CASE CAR DUMPER Filed March 26, 1926 4 Sheets-Sheet 1 Jan; 3, 1928. 1,654,919

A. F. CASE cm BUMPER I Filed March 26, 1926 4 Sheets-Sheet 2 3511 EiliS. I 1,654,919

A. F. CASE CAR DUMPER Filed March 26, 1926 4 Sheets-Sheet s r ,Inuenfon v A. F. CASE CAR DUMPER Filed March 26, 1926 4 Sheets-Sheet 4 oil Patented Jan. 3, 1928'.

unireo s'rA'rEs PATENT orries,

ARTHUR F. CASE, OF cLEvELANn- OHIO, ASSIGNOYRVTO THE \VELLMAN-SEAVER-MOR- can COMPANY, or CLEVELAND, 01 150, A CORPOBVATION'OF onro.

GAR BUMPER,

Application filedMarch 26, 1926. Serial No. 97,572.

This invention relates to car dump'ers of the type having a car receiving cradle which is turned about an axis todump the contents from car supportedby the cradle, and the invention has particular reference to the car clamp mechanism which holds the car onto the cradlew ile the car is being turned to dump the car and returned to car receiving position.

to provide a clamp actuating mechanism which is simple in construction, easy to install and inexpensive to manufacture.

A further object is to provide clamp actuating mechanism capable of withstanding hard usage and which is so designed as to be actuated by the cradle inits dumping move ments to positively apply and release the clamps;

A furtherobject is to provide clamp actu- I I sides of the track 5,- the front side 7 being ating and holding mechanism which is mounted on the cradle near the pivotal axis I for movement independently of the cradle and which is operatively connected to the clamp on the cradle in such manner as to cause the clamp toengage the car and to hold the clamp in engagement with the car during the dumping operation and to dis-- engage the clamp during the return movement of the cradle so that thelempty car in the cradle may be replaced by a loaded car.

lVith the above and other objects in view the, invention ma be said to comprise a car dumper as illustrated in the accompanying l "The cradle is also provided with couuterweight cables 12each of which is attached at one. end to the bottonti'ot the cradle adjaing-the cradle in a partially tilted position and Fig. 3 showing-the cradle fully tilted;

for discharging the contents of the 'car thereon; V

Fig. 4; is a side elevation of the clamp actuation n echanisnn'andf Fig. 5 is a front elevation of the actuating mechanism shown in Fig. 4.

The present invention has for its object rations-0t the dumper, Fig. 1 showing the cradle in car receiving position, F g. 2 show- J The present invention is illustrated in connection with a car dumper of the travel .ing'type in which the damper is mounted to travel upon suitable tracks and to receive the cars to be dumped from a railway track extending between the tracks which support the dumper. The dumper consists of a.

supporting structure 1 which is mounted to travel upon tracks 2 which extend along opposite sides of a railway track3, and mounted in the supporting structure 1, there is a tilting cradle l provided with acarreceiving traclrh which is directly over the railwaytrack 3 when the cradle is in car receiving position suitablev t-ra'ckways being provided for running the cars from the railway track 3 up onto the car receiving cradle.

The cradle is substantially U-shaped having upright sides 6 and 7' upon opposite somewhat higher than the side 6 and having an apron 8 over which the mater al lSCl1S charged as it falls from the car. The cradle of hoistingcables 10 which are attached to the bottom of the cradle adjacent the front" of the cradle and extend underneath the cradle, up the outside of the rear side 6 over suitable guide sheaves to winding drums 11.

cent the rear. side, extends over'suitable guide sheaves 12s at the top of the supporting structure 1 through a sheave 12*;carry- Jinga counterweight12flback over guide sheaves at the. tooloif the structure. down the v .L i

1 IYear si'de. and: across the bottom of the cradle where it is attached, as shown in F 3, the. counterweight serving to assist the hoisting cables during the beginning-0t the tilting movement and to lessen the momentum of the cradle after its center of gravity has been moved; to a point outside the pivotal axis aboutwhich the cradle tilts;

' The car: dumpcr, in sotairns ,abovejdcscribed,"tormsno part of the presen invcntion, being'adumper' ot'an old and well Tknown type'in connection with Whichthe segment being cnt No. 1,570,9l3, granted sition exerts a null noon the littino; cable ends by a cross v p roller 28 which acts as a COUIlLGT'WGlght tor present invention is illustrated, the present invention being applicable to various types of car dumpers.

The car clamp herein shown is substan tially the same as tnat disclosed in my Pat- January 26, 1926, the present invention being an improvement in the mechanism for actuating the clamp. The rear side 6 ot the cradle is provided on the'inner side thereo't with a vertical guideway 13 in which there is slidably mounted a head 14: which carries a car engaging clamp bar 15, which pivoted intermediate its ends at 16 to the head 34. and carries guide sheavesl? and 1111 at its opposite ends. The clamp bar 15 is c lapted to extend across the top of the car, the forward end of the bar being adjacent the apron 8. A. holding cable 19 is anchored to the cradle adjacent the bottom thereof and extends upwardly along the inner side of the apron 8 over the sheaves l8 and 17. do wn the inner side of the rear sidefi of the cradle and over guide sheaves 21 at the bottom of the cradle and on the front side thereof to a winding drum 22 which is mounted on the shaft 9 A litting cable 23 is anchored to the cradle at the upper end of the rear side 6 thereof and extends downwardly around a sheave 25 mounted on the head 14 at the upper end thereof, extending upwardly from the sheave 25 over sheave 26st the upper end of the side 6 and downwardly over guide sheaves '21 to the winding drum 22. The holding cable 19 and the lifting cable 23 are wound in opposite directions upon the drum 22 so that as one of these cables is wound up, the other is paid out. move by gravity into car engaging position and when the cradle is in car receiving potending to unwind this cable from the drum 22 and to wind up the cable 19 on the drum shaft 9 and this lever consists of a pair of side bars 27 which are position-ed upon opposite sides otthe drum 22 and which are'rigidly connected at their upper endsby a cross bar 27 and at their lower shaft which carries a heavy the'lever. The lever 27 is normally disconnecte d from the drum 22 and hangs in a position in which the counterweight roller 28 engages an abutment 29 on the supportingstructure 1. A second lever 30 is pivoted intermediate its ends on a cross shaft 31 eX- tending between the side-members 27 of the lever 27 below the'drum 22. The lever carries a roller '32 at itslowcr end and has a gear segment 33 at its upper end, the gear formed on the arc of a circle having itscenter at the axisot the shaft 31. The gear segment 33 meshes with a pinion as an axis,

The car clamp tends to 34L which is fixed to the drum 22 so that movement of the lever 30 about the shaft 31, causes rotation of the drum22 in one direction or the other depending upon the direction of movement ot the lever. l Vhen the cradle is in upright position, the

,roller 32. ot the lever 30 is engaged by an outwardly extending abutment 35 carried by the side 7 of thecradle and this abutment is of such length that when the cradle'is in car receiving position, the abutment holds the lever 30 in a position such that the outer end portion of the segment 33 is in engagement with the pinion 34-. I f

The drum 22has fixed thereto a ratchet 36 which is adapted to be engaged by a pawl 37 which is pivoted intermediate its ends to the lever 27 at the end thereof above the drum 22. The pawl 37 is normally held out ratchet by a (0111 pression spring 39 interposed between the of engagement with the rear end of the'pawl and the cross bar 27 at the upper end of the ratchet. The forward end ot the pawl. 37 carries a roller 40 which is adapted to be engaged by a cam 41 carried by the cradle the cam 41 being pivotec at its lower end zit-42 and being yieldebly held at its upper end. by compression spring 4?) interposed between the upper part of the cam 41 and the cradle. I

l l lien the cradleis in car receiving })OSl tion, as shown in Fig. 1, the lower end of the lever 30 is pushed to its outermost position by the abutment 35 on the cradle and the drum 22 has been rotated in a clockwise, direction to wind up'the cable 23 sutiiciently to raise the car clamp to the position shown in Fig. 1, the holding cable 19 having been the cab e 28, rotates the drum 22 in countor-clockwise cnrcction causing the upper end, of the lever 30 to move outwardly and the roller 32 to'move inward] with the abutment This movement oi the drum and drum operating lever continues until the clamp comes into engagement with the top;

of the car. "When the" cradle has moved from theposition shown in Fig. shown in Fig. 2, the cam 41 on the cradle will have swung with the cradle about the pivotal the rol er 40 carried by, the pawl 37. The action ot the cain ll is to tor-cc the'pawl 37 into engagement with the ratchet 3b in opposition to the spring 39 which'norinally hold-s said pawl out of engagement with the said ratchet, the cushioning spring 43 oi': the cam permitting the cam to yield sufficiently to permit the pawl 37 to ride down into engagement with the next tooth in the event that it should engage with. the top of :1

axis 9 sufiiciently to engage with x to 1 to that cam 4:1. The cam of the pawl 37 with the ratchet '36 locks the counterweight lever 27 i to the drum 22 and further'rotation of the cradle will cause the lower end ofthe lever 27 to swing inwardly away from the abut-'- ment 29 whereupon the weight ot' the roller 28 will act through-the lever 27 upon the drum 22 tending to turn the drum in a countercloclrwise direction to wind up the holding cable 19. The counterweight 28 then acts to apply tension to the holdingcable 19 and toh'old the car clamp-down upon thev top of the car and as the cradle moves to its fully tilted position, shown in 3, the \veight 28 will act through the lever 27 with agradually increasing leverage to apply the force to the car'holding clamp necessary to hold the car upon its track 5 while in inverted position.- As the cradle swings back to car receiving position the counterweight will first engage 'with the abutment 29 causing the lever 27 to remain stationary until the cam 41 has moved out of engagement with the pawl 37'whereupon the lever 27 will be freed from the drum. -During the final portion of the return movement of the cradle, the abutment 35 will engage with the roller 32 and swing the lower end of the lever 30 outwardly causing the gear segment 33 to travel inwardly and rotate the; pinion and drum22 in a clockwisedirect on,

'3,I1Cl unwinding cable l9 to hoist the car clamp from car engaging position to thepositioninFig. 1 so that the'empty car is free to travelout of the cradle and a loaded car may be run into the cradle in its place.

Having described myinv ntion, I claim:

1. A car dumper comprising a supporting winding up the cable 23 structure, a car receiving cradle mounted for tilting movements on said structure, a movable car clamp carried by the cradle, and a movable actuating member mounted on, a

fixed support, said-member being operatively connected team clamp, said actuating member being so mounted "with respect to the cradle as to be actuatedby the cradle in its tilting" movements to operate the clamp i 2. car dumper'comprisinga supporting structure, a car receiving cradle mounted'for tiltingmovements on said structure, a mov able car clamp carried by the cradlefa counterweight lever having" a stationary pivot, means for automatically establishing a connection between the counterweight lever and the clamp upon a predetermined tilting movement of the cradle to cause the counterweight lever to exert a holding action on the clamp, and vmeans operated by the cradle in its tiltingimoveinents for moving receive a car, m'eans'tor turning th e cradle,

the clamp, to and from engaging position.

v 3-. In a car dumper, 'a cradle adapted to a movable car clamp on the cradle, a counterweight lever having a statlonary pivot,

means operable independently of the counupon a predetermined movement thereof for connect ng said lever to the clamp to cause the counterweight lever to exerta' holding action on the clamp.

14. In a car dumper, a c adle adapted to re ceive .a car, means for turningthe cradle, a movable car clamp on the cradle, a counterweight lever having a stationary pivot, means operable independently of thecounterweight lever" and actuated by the cradle in its turning movements for shiftingthe clamp, andmeans operated by the cradle upon a predetermined movement thereof for connecting said counterweight lever to said clamp shifting means to cause thecounten weight to exert a holding, action on the clamp. f r i i In a car dumper, a cradle adapted to receive a car and mounted to turn about a horizontal axis to dump the contents from the car, a movable car clamp on the cradle, means for moving the clamp including a winding drum mounted at the pivotal axisot the cradle, and a cable connecting the drum and clamp, and means operating autoot the cradle for turning the drum in a direction to apply the clamp.

6. In a car dumper, a cradle adapted to receive a car and mounted to. turn. about a horizontal axis to dumpv the contents from the car, a movable car clamp on the cradle,

the drum in the opposite direction togrelease the clamp. a i '7. Ina car dumper, a cradleadapted to receive a car and mounted to turn about a horizontal axis to dump the contents froln the car, a movable car clamp on the cradle,

means for moving the clamp includinga" 'winding drum mounted at the pivotal axis ot'the cradle and a cable connecting the drum and clamp, adeverpivoted adjacent rection to apply the clamp, and during the i re'ti'irnmovement ofthe cradle for turning matically durin thesdumping movements the axis of the cradle, means for operatively connecting the lever to the drum, and means movements of the-cradle;

Tstructure, acar receiving cradle m'ounted on said structure for tilting movements to dump the "contents of a car thereon, a movable carclamp mounted 'onthe cradle, a v

for o eratin said lever durin the dumpin l b c. 4 t5 S.A car dumper' comprising a supporting clamp operating drum mounted on a stationary shalt, a cable, connecting said drum and clamp, and means for actuating the drum.

9. A car dumper comprising a supporting structure, a car receiving cradle mounted on said structure for tilting movements to dump the contents of a car thereon, a movable car clamp mounted on the cradle, a clampoperating drum mounted on a stationary shaft, a cable connecting said drum and clamp, and means adapted'to be operated by the cradle in its tilting movements for rotating the drum. r

10. A'car dumper comprising a supporting structure, a car receiving-cradle mounted in said structure for turning i'novements about a horizontal to dump the contents of a car thereon and to return. to itsoriginal position, a counterweight leverpivoted to turn about a fixed axis, a car clamp carried by the cradle, means for moving the clamps to and from car engaging position, andv means for operatively connecting said counterweight lever to said clan'ip upon a predetermined' tilting movement of the cradle.

11. A car dumper comprising a supporting structure, a car receiving. cradle mounted in said structure for turning movements about a horizontal axis to dump the contents of a car thereon and to return to its original position, a counterweight lever pivoted to turn about a fixed axis, a car clamp carried by the cradle, to and from car engaging position, and means for operatively connecting said couuterweight lever to said clamp'upon a predetermined tilting movement of the cradle, said counterweight lever being so moimted as to act upon the clamp with. increasing leverage as the cradle approaches the limit of its dumping movement.

12. A car dumper comprising a support structure,a car receiving cradle 1nounted in said structure, for turning movements about a horizontal axis to dump the contents of a car thereonand to return to its original positlon, a counterwelght lever pivoted to turn about a fixed axis, a car clamp carried by the cradle,-meanstor operatively connectmg thecounterweight lever to the clamp during the dumping movement of the cradle and for disconnectingthe same during return movement, and means operated by th cradle in its dumping and return movements for shifting the clamp to and from car engaging position. v v V 13. Aocar dumper comprising a supporting structure, a car receiving cradle mount-' ed in said structure for turning movements about a horizontal axis tents of a car thereon and to return to its original position, a counterweight lever pivoted toturn about a fixed axis, a car clamp .carriedby the cradle, means for operatively 'cradle and mg return movement, and means operated means for moving the cl amps.

to dump the, con? connecting the counterweight lever to the clamp during the dumping movement of the tor disconnecting the same durby the cradle duringits dumping and return movements and before and after-the operation of the counterweight lever for shifting the clamp to car engaging-position, and out of car engaging position. 1%. A cardumper comprising a supporting structure, a car receiving cradle mounted to tilt on said supporting structureto dump the contents of a car thereon, a-car clamp on the cradle mounted for movement lay-gravity to car engaging position, clamp actuating means including lever adjacent the cradle and connectedto. the clamp, a member on said cradle which euga'ges the lever when said cradle is in, car

receiving position to hold the clamp in releasing position and which moves out of engagement with said lever when the cradle is tilted to release the clamp and permit. it

to move to car holding position, and means for retaining the clamp in car holding position during the dumping voperation.

15. A car dumper comprising a support ing structure, a car receiving cradle mounted for tilting movements on said supporting structure, a movable car clamp on said. cradle, a drummounted on a stationary shatt, cables oppositely wound on the drum and operatively connected to. the clamp, means operated by the cradle in its tilting movements for operating the drum.-first in mounted one direction and thenin' the other to move I the clamp into and out of car engaging position, a counterweight normally disconnected from the drum and means controlled by the cradle in'its tilting movements for connecting said counterweightto the drum and disconnecting the same therefrom.)

15. A car dumper comprising a supporting structure, a car receiving'cradle mounted to tilt .on said supporting structure to dump the contents of a car thereon and to return to its original position, a car clamp on the cradle mounted for movement by gravity to car, engaging position, a'drum mounted on a statlonary shait,l1ft1ng and holding cables oppositely, wound onth'e drun'i and connected with said clamp, a leverpivoted at the axis of the drum, a counterweight carried by said lever, means adapted to be operated by the cradle in its tilting movements for connecting said lever and drum, means for limiting the pivotal movement of said'lever, and means mounted on said lever and adapted to be actuated by the cradle for operating said drum.

17QA car dumper comprising a supportto its original position, a car clamp onthe ting structure, a car receiving cradle mounted a til cradle mounted for movement by gravity to car engaging position, a drum mounted on said cradle adjacent theaxis thereof, lifting and holding cables oppositely wound on the drum and connected with said clamp, a lever 1 pivoted at the axis of the drum, a counterweight carried by said lever, means adapted to be operated by the cradle in its tilting movements for connecting said lever and drum, an abutment on the supporting struc ture for limiting the pivotal movement of the lever, a member movably mounted on the lever and operatively connected to the drum to actuate the same, and an abutment on'th'e cradle adapted to engage said movably mounted member to move the same and actuate the drum in a direction to lift the clamp. v

18. A car dumper comprising a supporting structure, a cradle mounted for lateral tilting movement on the structure, a car clamp mounted for vertical movement onone side of the cradle and movable actuating members mounted adjacent the opposite side of the cradle and adapted to be actuated by the cradle in tilting, said being operatively connected to the clamp.

19. A car dumper comprising a supporting structure, a car receiving cradle mounted for tilting movements, on said structure, a movable car clamp on the cradle, a winding drum mounted at the pivotal axis of the cradle, holding and releasing cables con necting thedrum and clamp and WOllliCl'lli opposite directions onthe drum, drum actuating means on the supporting structure adapted to be operated by the cradle in its tilting movements to shift the clamp into' and out of car engaging position, a clamp holding counterweight normally disconnected from the drum, and means operatedby the cradle during its tilting movements for connecting the counterweight tothe drum and disconnecting the same therefrom.

20. A car dumper comprising a supporting structure, a car receiving cradle mounted for tilting movements onsaidstructurc,

a movable car clamp on the cradle, a winding drum mounted at the pivotal axis of the cradle, holding and releasing cables connectmg the drum and clamp and wound in opiosite directions on the drum drumactu- I ratchet;

ating means on the supporting structure adapted to be operated by the cradle in its tilting movements to shift the clamp into and out of car engagingposition, a counter,-

weight arm pivoted at the axis of the drum tilting actuating members and normally disconnected from the drum, and means operated by the cradle during its movements for connecting the counterweight arm to the cradle and disconnecting the same therefrom.

21. A car dumper comprising a supporting structure, a car receiving cradle mounted for tilting movements on said structure, a movable car clamp on the'cradle, a winding drum mounted at the pivotal axis of the cradle holding and releasing cables connecting the drum and clamp and wound in opposit-e directions on the drum, a counter; weight arm pivoted at the axis of the drum and normally disconnected from the drum, a lever pivoted on said arm, an actuating connectionlbetween the lever :and drum, an abutment on the cradle engageable with said lever to actuate thesame, and means carried by the cradle for connecting'jsaid counterweight arm to the drum and for disconnecting the same therefrom.

22. A car dumper comprising, a supportstructure, a car dumping cradle mounted on said structure to tilt laterally about a horizontal axis at one side of said structure- .mounted on said shaft, a car holding clamp on the cradle mounted to move by gravity to car engaging position, holding and lifting cables extending from the clamp to the l drum and wound in opposite directions on the drum, a counterweight arm pivotally' suspended from said shaft, an abutment on the structure limiting the outward movement of the arm, a pinion'fixed to the drum, a lever pivoted to the counterweight arm and'provided at its upper end with a gear segment meshing-with said pinion, an abut ment on the cradle which engages said lever during the initial part of the "dumping movement of the cradle and during the latter part'of the return movement thereof, a

ratchet on the drum, a pivot carriedby the] counterweight 'arm, means for yieldably holding the pawl out of engagement with the ratchet, and a cam carried by the cradle V and engageable with the pawl after a predetermined movement of the cradle for movmg the pawl into engagement with the In testimony whereof, I hereunto aflix my signature.

ARTHUR r. CASE.