US940187A - Dump-car. - Google Patents

Description

J. PEARSON.

DUMP GAB.

Hmm-rias nun no. 21, 190e.

940, 1 87. Patnted Nov. 16, 1909.

3 SHEETS-SHEET 1.

xii

` bis "if mi vHH J. PEARSON.

i v1mm ou.. rumanos nun pao. u; laps.

Patented Nov. 16,1909.

i @my J. PEARSON.

iMP UAE. APPLIOATIOH 21mm 1120.21, 190s.

Patented Nov. 16,1909.

3 SHBETS-BEEET 3.

UNITED STATES DUMP-CAB.

Bpeoincation oil-Letten Patent.

Patented Nov. 16, 1909.

Application tiled December 21, X906. Serial No. 848,361.

To all whom 'it may concern.'

Be it known that I, J ons Pmnsox, a citizen of the United States, residing at Chicaro, in the county of Cook and State of Illinois, have invented certain new and useful lm rovements in Dump-Cars, of which the fo owinfr is a specification, reference being had iherein to the accompanying drawings.

This invention relates to dump-ears and particularly to that. class having drop-bottoms composed of' a series of swinging sections or doors which form the bottom of the vnr when in their closed position.

The principal object of the invention is to provide new and improved mechanism for opening and closing the dropbottom portions or doors, and new and improved mechanism to operate the opening and closing means.

Another object of the invention is to provide certain im rovements in the frame of the ear, and al) means for making a closed joint between the doors or drop-portions and the lo itudinal portion of the car-body with wiieh the cors copei'nte.

To these ends my invention consists in the constructions, arrangements and combinations of the several parts all as will be hereinafter described and pointed ont in tho claims.

In the nccoutpaitying,r drawinws--Figure l is a cross-sectional elevation olia one type of car as it. appears when constructed in nc cordone-e wtti my improvements; Fig. 2, is a. plan view of the bottom of the car shown in Fig. 1 with the doors on one side removed to show the mechanism beneath; Fig. 3 is a view in und elevation of a car showing means for operating the mechanism lo open and close the doors, the right side of this view showing the position of the parts for opening the doors and the left side sl'lowing the position oi' the parts for closing the floors: Fig. -i. is n detail view showing the operating mechanism in position 'for shifting the pnl-ts 4from position to close the doors to position to onen them and vico venia; Fig. .i is a detail view showing one ol' the Inu-dio or transverse deck-imams in side elevation and other plu-ts in section; i

Fig. G is n view similar to Fig. l und s|low so particularly to provide ing a different form of means to open and close the doors; and Fig. 'i' is a view partly in plan and partly in section of one of the holsters and eet-tam of the associated parts.

In constructing a car in accordance with my invention I provide the usual side and end walls 10 and 11, the sides being provided with sidesills 12, preferabl m the form of channel irons or bars. he supporting frame-work consists o longitudinal sills 13, centrally disposed at each side of the longitudinal center of the car and extendin substantially from end to end thereof, angel holsters 14 and transverse deckbeams o1' needle-beams 15 in the usual positions. The center sills support a stationary central lon -tndnal portion 16 of the car bottom, which may, if desired, be rovided with a hood or cover (not. showni) having oppositely inclined sides to provide an apex portion. The sides of the stational portion 16 are rovided with longitudine ly extending ang e irons 17 which are su ported by the sills 13, and in t e preferred fiirm are rovided with outwardly extending webs or edges 18 at their tops. For this ur ose the angle irons may be constructedI o Z- shaped bars althouph any suitable form may be employed w lich may provide outwardly extending webs or le( ges for a purpose to be hereinafter described.

The needle-beams are prefernbl of castmetal, and extend across from si e to side of the ear as shown in Fig. 5. Their endportions are substantially rectangular in outline, being eut-away at the lower outer corner, and provided with suitable flanges l5 by which they are riveted to the sills 13 and the angle-irons 1T. The end-portions are united by n cross-web l!) which lies between the sills 13 and the irons 1T, the latter being suitably dcfiertcd to pass upwardly over the` webs 1S), and tho parts being secured together hy rivets us at 20. The rrossnvelis extend across beneath the central part 1U, and with the ond-portions form integral cross-insurers or deck-Infants.` The holsters 1-t also extend across the width of the ear. and preferably nre composed ol' opposite. sido pluies 2l suitably spaced apartY nml Il top pluto und elui platos .23 of suitable contour such for example as illust trutml in Fig. l, und prrtrrnhiy integral in n single casting. The holsters are cut-away at their centers to receive the longitudinal sills 13, and are provided with cross-flanges Q4 which are riveted to the sills as at 25. The top late 22 extends between the sills 13 and ang e irons 17, as shown in Fie. 6,' and these parts are suitably connected by rivets as at 26. The ends of the holsters, and also the needle-beams if desired, are provided with brackets 27 preferably in the form of T-irons, which extend upwardly and carry the side-sills 12 and the timbers of the sides 10, all bolted or riveted thereto. The.bolsters are rovided with the usual flanges 28 to whic the draft-device is secured, the sills 13 being suitably spaced apart so that the draft-device may be arranged between them in the center line of the car, as shown in Fig. 7.

The drop-bottom consists of a plurality of swingin sections or doors 29, which in the forni siown in the drawings arc pivot ally secured at their rear edges to the central stationary portion of the bottom at each side. As is clearly shown in Fia. 2, a swinging section or door is located between adjacent transverse beams or holsters and between the holsters and the end-sills 30. Each door is provided with suitable side plates 31 preferably extending the full depth of the door and pivotally secured to the central stationary ortion by means of brackets 32 suitably olted or otherwise fastened to the angle irons 17.

Each of the swinging sections or doors is provided at its rear or inner edge with means to eoperate with the webs or ledges 18 to make a tight joint therewith in all positians of the door. This tight joint may be provided b any suitable means and for this purpose I ave shown the doors or swinging sections occupied with inwardly projeeting tia s 33 which take under the webs 18. It. will understood upon reference to Fig. 1 that when the doors are closed their upper faces come substantially llnsli with the upper faces of the webs, and the flanges 33 extend inwardly beyond the inner line of the door portions so as to project into the space below the webs. The [langes 33 and the webs 18 are of siillicient width t'i allow the door to swingr i'lonn without breaking the joint between them, thisl being clearly illustrated in Figs. 1 and 6 wherein the parts are shown in their respective positions when the dools are raised and lowered. These flanges may he irovidcd by any snitable means and for this purpose I preferably use Z-bars, which are riveted to the side plates 3l which n'rli-rnhly are in the form nf :ingle-irons. lllli. limr of the doors' overlying purl. of tho lungcs lil so ns to collie flush with Ihn "anges IH when tho doors are closed.

'llic swinging .si-rliuis or doors may bo raised or lowered by a variety of means without de arting from inv present invention, and show two dill'erent forms of opening and closing mechanism.

ln the form Shown in Fig. l I provide a rod 34 upon each side of the central por tion and ada ted to slide in slots 35 in the holsters, ne le-beams und end-sills. The outer ends of the slots are horizontally disposed as shown at 36, these portions being of suliicient extent to form seats to receive and support the rods when in position therein; the slots extend inwardly and downwardly from the seats 36 to form inclined runs or ways for the rods. Upon each side the rod mav be integral or sectional, and it is provided with a plurality of bell-crank levers, preferably two, for each swingingr section or door. The bellcrank levers are riglidly or loosel secured to the associated ro or section o rod, and may oscillate the rod or merely turn on it. as a pivot according to the construction ein loyed. The lon" arms 37 of the bell-crank evers are in sli ing engouement with the under faces of their associated swinging sections or doors, preferably being provided with anti-friction rollers 3S rotatably mounted therein and en gaging suitable tracks or wear-plates 39 on the outer faces of the doors. The short arms 40 of the bell-crank levers are suitably con nectcd to an operating shaft 41, it being nnderstood that one such shaft may be provided for each longitudinal series of doors on each side of the car or for a. half of such series. The connection between the short' arms of the bell-crank levers and the operai.- ing shaft is preferably in the form of a toggle joint com osed of the links 42 and 43 connected at their free ends to the bell-crank and shaft, respectively, the ends of the links 42 connected to the arms 40 heilig upturncd as shown in Fig. 1.

The other form of means to open and close the doors is illustrated in Figs. ti and 7 in connection with one of the holsters. When this form is om )layed the holsters, cross-beams and end-si ls afc provided iii such form that bell-crank levers may be pivoted or jonrnaled between their opposite sides, as at. 44. The long arms 45 of the hell-crank levers carry cross-heads 4G, each of which extends outwardly through slots 47 in the opposite plates or sides of the bolster or cross-imam and inni-r face of the end-sills. 'lhe slots are struck upon the arc of u circle of which the pivot llis the centi-r and extend rearwardly und downwardly us shown iu Fig. (l, their upper ends forming .seals for the cross-heads. llnrh cross-hond is irovidrd at its ends with upwardly projm-ling lugs or wings 4.8 which engage the sides ol' the doors. 'lho short. arios 'l0 are ronnei'lrd lo thc operating .shafts vIl Irv links lil und fl-l, as heretofore described.

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l ill) (lli Each o crating shaft 41 extends through an end o the car where it is provided with a ratchet wheel 50 rifidly mounted thereon and held against accidental displacement by a dog 51 suitably pivoted upon the end of the car body and nda ted to be thrown out. of engagement with tie ratchet wheel when its stop or detent 52 is raised. A. hak ls loosely mounted on the operatinu' shaft :11, and a pawl 54 is carried b a lin 55 which is ivotallv connected at its ends with the linl 53 and a handle 56 pivoted at 5T on the end of the car body, as clearl shown in Fig. 3. By this construction tie shaft 4l may be reversal operated to raise and lower the doors. In gig. 4 it is obvious that when the handle 56 is sntliciently lowered to allow the pawl 54 to engage the teeth of the ratchet wheel 50, the latter may be rotated in the direction of the feathered arrow by the opera tion of raising and lowering thc handle, each down thrust thereof turning the ratchet wheel the distance of one or more of its teeth. To reverse the direction of movement of the shaft 41 the handle is raised until the paw] is drawn out of Lineage-ment with the teeth of the ratchet whee as shown in Fig. 4, when the owl is moved backward by hand and the zandle lowered until the parts occupy positions substantially as shown at the left side of Fig. 3. In this posit-ion it is apparent that if the handle be raised and lowered alternately the ratchet wheel will be rotated with every down thrust in the direction of the featherless arrow and the shaft 41 turned accordingly. It is apparent that when the parts are reversed from the position shown at the left side of Fig. 3 to that of Fig. 4, the pawl 54 will swing by gravity to the position of Fig. t when the handle is raised. The paw] at the right side of F ig. 3 may likewise be reversed to oppositely rotate the sha ft to raise and lower the doors.

Referring to the form of mechanism shown in Fig. l, the links +2 and 43 hold the associated rod 34 in the seat 3G formed by the horizontal portion of the slot 35. the outer ends of the links 42 being upwardly curved as shown so that their ends are sul;i stantially in the horizontal plane of the rod beyond the seat and lorlc the rod in the seat when the shaft 4l is held from rotation. ns hy thc dog 5l. This holds the lon, Ir arms 37 of the bell-crank levers in substantially vertical position, and h v this arrai'igement thc weight of the doors and the material carried thereby is borne upon the holsters and decl@ beams, the parts oi the operating mechanism. except the upright arms of thil hellt-raulis, living thereby relieved of all weight or sl rain when the enr is hauled. ln this position ot' the pai-Is the free ends of the long urina nl tho lal|-cruuk lovers are in the saine vertical plane as the. associated rods. so that the weight of the door and ila load ia snstallied at onts substantially upon a dead center willi the rods; it is therefore apparent that if the point of contact between thc bell-cranks and the associated door be shifted from the dead center the weight of the door and its load will canse the rod to be displaced from its seat and to travel down the inclined slot 35 and allow the door tu dro i. In order to move the bell-cranks sutlicient y to throw the long arm ot the dead center the dog is released and the shaft 41 is rotated in the direction of the feathered arrow in Fig. 1, which may be accomplished by raising or lowering the handle at. the. right of Fig. 3 or in Fig. 4, respectively. While the means for giving an initial motion to the bell-cranks ma; be of any suitable construction, I refera ly employ the means illustrated. l hen the parts of the operating mechanism are in the position substantially as shown at the right'. hand side of Fig. 3 or in Fig. 4 it is obvious that if the handle is operated the ratchet wheel will he moved in the direction of the feathered arrow tho distance of one or more teeth and the o erating shaft 41 to which the ratchet whee is rigidly secured will hc turned in the saule direction accordinglv. This movement of the shaft turns the link 43 downward through the path of the dotted line and thereby pulls the vertical arm of the bell-crank lever olf the dead center of the associated rod 34, when the weight of the door and its load will cause the shaft to travel down the inclined portion of the slot 35 to allow the doors to open, the parts taking the position shown at the right side of Fig. 1.

Vlhen the load has been dumped and il is desired to return the doorsl to their closed position, the handle f' is raised to the position shown in Fig. 4, and the pawl is turned by hand to drop to the position shown at the left side of Fi 3 when the handle is loweled, and the og 51 is moved into engagement with the teeth of the ratchet and held in position by means of the datent 52. The parts having assumed the position shown at the right side of Fig. 1 and the left side of Fig. 3, it is apparent that if the handle t is thrust down the ratchet wheel and shaft will he turned in the direction of the featherless arrow, and with successive raising: and lowcrinry or puln ling of the handle 5G the linkage ietweeu t ie shaft and hell-eranlcs will he lnovcd to push the rods willi the door up the inclined portions of tluI slots 2li until they reach their seats 36. When the rods are seated thc continued turning of the shaft ll-l rotates the hell-crank levers upon the rods and the long; arms :ST hearing upon the wear plates :l0 restore the doors to original posi tion, as shown at the lol'l hand side of li'ig. I.

'lo o craie the means shown al the right side ol hip. ll'to close the doors lhr lulndlelal raised lo a position similar to that shown in llO Fig. 4 and the pavvl is turned by hand to dro in the opposite direction so that the sha t. is opposite y moved when the handle is successively lowered, the dog preventing the shaft from turning backward.

In the other form of means to open and close the doors illustrated in Fi 6 and 7, the rotation of the shaft 4l in t e direction of the feathered arrow rocks the cross-heads out of the line of their pivots oi' oil' the dead center, and the weight of the doors and load causes the cross-heads to move in the slots from the closed position shown in full lines at the left side to the open or dum -position shown in dotted lines at the rig side of Fig. 6; and the reverse rotation of the shaft in the direction of the featherless arrow rotates the bell-cranks to raise the door, the continued rotation of the bell-cranks after the cross-heads seat in the outer ends of the slots causing the wings 48 to close the doors.

While the doors are shown as outwardly discharging it is obvious that the same device may be employed with inwardly opening doors. In other words the invention is capable of embodiment in dump cars in which the doors are hinged to either the center or side sills to dump outwardly or inwardly as desired.

While the levers to open and close the doors are shown in the form of bell-cranks, it is obvious that they may be in other form; for example, the lon arms or links 37 or 45 may be employed a one as levers, and maybe operated by any suitable means.

In the form shown in Fig. 1 it is obvious that the links 37 may pivot upon the rods 34 or upon the doors as centers, and that in either case when moved the will be thrown out of alinenient with the line of the weight or load, or off the dead center, so that the doors may open.

Having described my invention what I claim as new and desire to secure by Letters Patent of the United States, is-

l. In a car, central longitudinal sills, central angle-irons above the sills, and deckbeams having end-portions and a connecting web between the sills and irons.

E2. In :i car, central longitudinal sills, central anfrle-irons above the sills, and deckbenms liaving end-portions connected by a cross-web, the end portions having tlanffes secured to the sills and the web located etween the sills and angle-irons and secured thereto.

3. In n dump-cnr, a frame having crosssupports provir ed with inclined slots, n rod in thc` slots. n sci-irs of dnnllrdmn-sr on tho l'rnnw, holla-rank levers pivotvd on the rods euch having nn arnl cngngin" n door in the line of the deuil center of ille lever pivots when the doors are closed, and ini-.uns to move the levers.

4. In a dum car, a frame having crosssup erts provi ed with inclined slots, a rod in t e slots, a Series of dump-doors on the frame, bell-crank-levers pivoted on the rods each having an arm su porting a door and 7o arranged in the line o the wei ht or load there or, and means to operate t ie levers to open and close the doors.

5. In a dum car, a frame having crosssupplorts provi ed with inclined slots, a rod in t e slots, a series of dump-doors on the frame, n shaft, bell-crank levers on the rods each having an arm sup rting a door, links connecting the shaft an the free arm of the bellcranks, and means to operate the shaft. 80

(3. In a dum -car, a frame having crosssupports provi ed with inclined slots havin horizontal end-seats, a rod in the slots an normally resting in their seats, dnmp-doors pivoted on the frame, bell-crank levers on 55 the rod, one arm of the levers sup orting a door and other arm extending in t e line of the end-seats, a shaft held against rotation in one direction, links connecting the shaft and bell-cranks, and` means to operate the 9o shaftin the opposite direction.

'i'. In a dum car, a frame having crosssupports rovi ed with inclined slots having horizonte end-seats, a rod in the slots an normally resting in the seats, dump-doors pivoted on the franie, bell-crank levers on the rod each having an arm engaging a door, a shaft, a catch to hold the shaft against rotation in one direction, links connecting the shaft and free arm of the bell-cranks, and means to operate the shaft in the opposite direction.

8. In a dum car, a frame having cross supports )rovi ed with inclined slots liavin horizonta end-seats, a rod in the slots an normally resting in the seats, dump-doors pivoted on the frame, bell-crank levers on the rod each havin an arm engaging a door, a shaft, a catch to iold the shaft against rotation in one direction links connecting the shaft and free arm o the bell-cranks, and means to operate the shaft when the catch is released.

9. ln a dump-car, ai frame, a series` of dump-doors on the frame a rock-shaft, con ncctions between the shaft and the doors to open and closeI the latter, a ratchet wheel on the shaft, an operating handle, link connections betwcen the handle and shaft, and n reversible pawl on the link connections to move the wheel in either direction.

10. ln n dump-car, n frame, u series of dump-doors pivoted on the frame, n rockslmft havin yr n ratchet-wheel,mnincctions hctween the shaft and doors to open and clos-|- the hitler, u handle pivnted on the frana', n pivoted link, und n link pivotnlly connecting the iivotcd link and handle sind Imi-'ing n pnwl to engage the wheel.

11. In a dump-cur, u frame, n serios of lili! dumpdoors pivoted on the frame, a series of levers mounted on the frame and enga ing the doors, n rock-shaft having n rat etwheel, connections between the shaft and levers, an operating handle pivoted on the frame, link connections between the operating handle and the shaft, and n reversible lmwl on the link connections.

12. In n dump-cnr, a frame, n series of dump-doors pivoted on the frame, e series of bell-crank levers to raise and lower the doors, a rod having sliding support n n the frame and carryin the levers, a. roc -shaft having n ratchet w neel, a dog for the ratchet wheel, connections between the shaft and levers, a link pivoted at one end on the shaft, u handle pivoted on the frame, n link pivotally connected to the handle and free end of the first link, and a reversible pawl on the second lmk engaging the ratchet wheel.

13. In a chimp-car, a frame, a series of dump-doors plvotcd on the frame, n series of levers mounted on the frame and engaging the doors, n rock-shaft, connections between the shaft und levers, a ratchet wheel on the shaft, an operating handle, link connections between the shaft and the handle, and u reversible pawl on one of the links to move the wheel in either direction.

In testimony whereof I atlix my signature' 30 Witnesses ELIZABETH MOLx'roR, J. McRonmrrs.

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