US634683A - Dumping-car. - Google Patents

Description

Patsnted Oct. [0, I899. M. G. BUNNELL. h

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' (Application filed July 22, 1898.)

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(No Model.)

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No. 34,683. Patentedflct. l0, i899.

- M. G. BUNNELL.

DUMPING CAR. (Application fil ed July 22, 1898.1 (No Model.) 3 Shgets-Sheet 2.

UNITED STATES PATENT Cur os,

MORTON G. BUNNELL, OF CHICAGO, ILLINOIS, ASSIGNOR TO FREDERICK C. AUSTIN, OF SAME PLACE.

DUMPlNG-CAR.

SPECIFICATION forming part of Letters Patent No. 634,683, dated October 10, 1899.

Application filed July 22,1898.

To all whom it may concern:

Be it known that I, MORTON G. BUNNELL, a

citizen of the United States, residing atGhi-- cago, in the county of Cook, State of Illinois,

have invented a new and useful Improvement in Dumping-Cars or other Wheeled Dumping-Carriers, of which the following is a specification. 7

My invention relates to a construction of IO dumping-car or other wheeled dumping-carrier described in my application, Serial No.

686,629, for Letters Patent of. the United States filed of even date herewith and is made-for the purpose of claiming an alternative construction of device for upholding the gates not specifically claimed in my said other application; 7

The objects of myinvention are to provide a well-balanced tilting body or receptacle which can be readily tilted for the purpose of dumping the load, to provide an automatic gate which can open to an extent to permit the load to be freely discharged and which can be swung out of the way when so desired, and to generally provide a simple, reliable, andhighly efficient construction of device for controlling the gate or gates employed;

To the attainment of the foregoing and other useful ends my invention consists in 0 matters hereinafter set forth.

In the accompanying drawings, Figure 1 shows, an end elevation of a dumping-car embodying the principles of my invention. Fig. 2 is a detail showing one of the break-joints 3 5 comprised in the. gate controlling device. Fig. 3 shows the car in side elevation. Fig. 4 is a section on line m to in Fig. 3 with one of the gates swung out of the way? 7 The dumping-car illustrated comprises a 0 wheel-supported truck-frame and a tilting body or receptacle A, having a rocker-base arranged to bear and rock upon the base-support afiorded by the truck-frame. The rockerbase could be formed by a single rocker se- 5 curedto the bottom of the body and extended substantially from end to end thereof or of aplurality of segmental-shaped rockers similarly secured, a simple and preferred arrangement, however, being to rigidly secure segmental-shaped rockers B respectively to opposite ends of the body.v The curved bearing-- Serial No. 686,630. (No model.)

" faces of the rockers,which, as a whole, form the rocker-base and rest upon the truck-frame, are formed on the arcs of concentric circles having a common axis which extends longitudinally through the body along a line midway of the longitudinal sides of the latter, in which way the tilting body will normally balance and tend to maintain a horizontal position. As a further preferred arrangement the said axis is located midway or nearly midway of the top and bottom of the body, so that when the latter is loaded it can be more easily tilted for the purpose of dumping the load. This will be understood from the fact that the rockers are, in efiect, wheels rigidly secured to the body and adapted to roll upon the truck-frame to a limited extent, whereby when the body is tilted the curved bearingfaces of the rockers representing segmental portions of wheels will practically roll to a limited extent upon the truck-frame and permit the body to have a compound movement, involving a tilting action and a lateral. shift, as clearly illustrated by dotted lines in Fig. 1, wherein it will be seen th at the body has tilted about a laterally-shifting axis, which latter maintains a uniform height relatively to the base-support or truck-frame Whereon the rock'ers'operate. The wheeled base-support or truck-frame can be variously constructed in accordance with approved mechanical principles; As a simple and preferred construction, however, it may comprise transverselyarrangedrails or channel-bars O, secured upon -longitudinallyarranged bars D, the whole being suitably braced and otherwise adapted to provide a wheeled truck-frame. By providing the short cross-rails C the rockers can be arranged to bear upon such rails, and in order to prevent end shift of the body the rockers can be flanged, as at b, soas to engage the rails after the manner of car-wheels. Each longitudinal side of the tilting body comprises a gate E, which opens automatically and relatively to the body when the latter is tilted, the arrangement being such thatduring the combined lateral movement and tilt of the body in dumping a load therefrom one gate remains closed and partakes of the compound motion of the body, while the gate at the side from which the load is to be dumped also parioo takes of the lateral movement of the body, but is maintained at a uniform height relatively to the horizontal plane of the truckframe and is therefore neither raised nor lowered. Strictly speaking, therefore, the gate at the determined dumping side of the car has only an outward lateral movement during the operation of dumping, and the descending longitudinal side portion of the tilting body leaves the gate, thereby affording for the discharge of the load a space proportional in height to the extent to which the body is tilted and consequent degree of separation between the lower edge of the gate and the bottom of the tilting body. In effect, however, the gate opens relatively to the tilting body: that is to say, there is a relative movement between the two. In order to thus control the gates, so that in dumping one gate may remain closed while the other will be supported against tilt and thereby permit the downwardly-tiltin g side edge portion of the body to leave such gate, and hence cause a relative opening of the latter,thegates are respectively provided with arms KK,secured to their ends and pivoted to the ends of the body at points to permit them to swing about an axis common to concentric circles of which the curved faces of the rockers constitute arcs. K K extend back or inwardlyfrom the gates to the aforesaid axis through the middle of the tilting body and are respectively provided with legs or extensions LL, extending beyond said axis and normally inclining downwardly toward opposite sides of the truck-frame, as best shown in full lines in Fig. 1,,wherein the arm K, which is secured to the gate at the right side of the car, has its extension L extended toward the opposite side of the car, while conversely the arm K, secured to the gate at the left side of the car, has its extension L extended toward the opposite side of the latter. The two legs or arm extensions L L (shown in Fig. 1) diverge downwardly from a common point or axis, it being understood that the gate-arms at the opposite end of the car have a like arrangement. These legs or extensions of the gatearms are provided with rollers M, which are confined within and arranged to traverse horizontal guideways conveniently formed by channels 0 in the cross bars or rails O, by which arrangement the rollers will at all times be maintained within such guideways. Each leg or arm extension is adapted to break joint under certain conditions. To such end each leg or extension is jointed, as in Fig. 2, so that it can break joint one way, a simple arrangement being to construct each leg or extension with a section Z, rigid with the gatearm to which it belongs, and also rigid with a coupling N, and to further construct the leg or extension with a short section Z, provided with a roller M and pivoted to said coupling, which is in the nature of a sleeve open at one side for a portion of its length, so that the section Z of the leg or extension These arms can swing outwardly from the coupling in one direction.

Then the tilting body is in its normal horizontal position, the gates can be closed, as in full lines Fig. 1, or either gate can be raised from one side and swung back toward the opposite side of the car, as in Fig. at, to facilitate loading, it being observed that in such case the swing of the arm with which the gate thus operated is provided will cause its leg or extension to break joint, and thereby permit the roller on such leg or extension to shift along the guideway in which it is confined.

Then the tilting body is tilted for dumping purposes, as indicated by dotted lines in Fig. 1, one gate will remain closed, while the other gate will relatively open-t-hat is to say, while it will be carried laterally with the side movement of the body it will be upheld by its arm and extension thereof, which latter will not undersuch conditions break joint, but remain as a rigid support for the gate. The bottom of the tilting body will therefore leave the gate, which is thus upheld byits arm, and hence afford space for the discharge of the load. When the body is thus tilted, the arm of the gate which remains closed will of course break joint at a point below its pivotal support, as indicated in dotted lines, it being observed that regardless of the particular details hereinbefore described each gate may be said to have at each end an arm secured to the gate at one end and having at its opposite end a roller confined within and arranged to traverse a guideway, the arm being pivoted or hinged to the tilting body (preferably at a middle point on the end thereof) and being articulated so as to break joint one way at a point between its pivotal support and its roller. By such arrangement either gate can be raised at will independently of thebody, and at such time its arms will break joint, so as to permit them to draw their rollers along the guideway and cause the portions of the arms between their rollers and pivots to bend, and thereby practically shorten up. On the other hand, when the body is tilted one gate will remain closed and its arms will break joint, so as to accommodate them in length to the synchronous movement of the gate and body, while the arms for the'other gate While moving in directions to draw their rollers along the guideway will afford rigid supports for upholding such gate at the dumping side of the car.

YVhat I claim as my invention is- 1. A dumping-car or the like comprising a tilting body having a rocker-base; and a gate for such body provided with break-joint arms which are pivoted to the tilting body and provided with rollers arranged to traverse suitable guideways.

2. A dumping-car comprising a tiltingbody having a rocker-base; a wheeled truck-frame having. cross-bars provided with guideways; and a gate having arms which are pivoted to the tilting body and provided with rollers arranged to traverse the guideways, said arms at one end to the gate and at its opposite end being each adapted. to breakjoint one Way at provided with a roller contained. Within and a point between its pivotal support and its arranged to traverse one of the guideways, roller. the arm being adapted to break joint between 5 3, Adumpingmar comprisingatiltingbody its roller and the point at which it is pivoted I 5 havingarocker-base; a truck-frame provided to the tilting body.

with transversely-arranged gnideways and MORTON G. BUNNELL. supporting the rocker-base; and gates ar- NVitnesses:

ranged, at opposite sides of the tilting body ARTHUR. F. DURAND, 10 and each having at each end an arm secured CHAS. G. PAGE.

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