US617994A - Dumping-wagon - Google Patents

Description

No. 6|7,994. Patented Jan. l7, I899. J. T. RICHARDSON. DUMPING WAGON. all! 2 Sheets Shetl No 617,994. Patented lan. l7, i899.

J. T. RICHARDSON.

DUMPING WAGON.

(Application fllgd Mn. 13, 1897.)

2 Sheets8heet 2.

(No Model.)

wwwew e o m: NORRIS PETERS co. PNDTO-Llfnu, wgsnmo UNITED STATES PATENT OFFICE.

JOHN T. RICHARDSON, OF HARRISBURG, PENNSYLVANIA, ASSIGNOR OF ONE- IIALF TO ALEXANDER II. EGE, OF MECHANICSBURG, PENNSYLVANIA.

DUMPlNG-WAGON.

SPECIFICATION forming part of Letters Patent No. 617,994, dated January 17, 1899.

Application filed March 13, 1897. Serial No. 627,309. (No model) To all whom it may concern; ened to suit the requirements of any particu- Be it known that I, JOHN T. RICHARDSON, a lar case. citizen of the United States, residing at I'Iar- As shown in Fig. 1, the power used to elerisburg, county of Dauphin, State of Pennvate the body A to the desired position for 55 sylvania, have invented certain new and usedumping is applied to a crank E, attached to ful Improvements in Dumping-Vagons, of the hub of a contiguous pinion b, and thence which the following is a specification. transmitted by a series of gear-wheels to the This invention relates to certain new and toothed segmental lifting-arcs L L, as shown useful improvements in dumping-wagons, and described in detail in the Letters Patent 60 having for its object to secure an improved hereinbefore referred to. The upper ends and expeditious means for the ready transq q of the lifting-arcs L L are provided with portation and unloading of coal, sand,crushed jaws j j or similar bearings for the reception stone, or other loose material and the deposit of friction-rollers p p, which in practice hear of the same at the desired place of unloading, upon and roll freely over horizontal lifting 6 5 wherebyasaving of time and labor is effected. bars 0 0, connecting supplemental lifting- XVith these objects in view the invention bars L L and L L, to which said bars 0 0 consists of the improved mechanism for eleare pivotally connected at their ends. The vatingboth the front and rear ends ofawagonforward supplemental lifting-bars L L are body or for elevating the front end only, if also pivoted at both ends, the lower ends ll 2o desired, said mechanism being actuated by being pivoted to the truck-rails B B, prefermeans of a crank and a system of gearing ably at a point distant about one-third of the from a common point of initial movement and length of the said rails from their forward by a continuous motion. Said invention is ends, and the upper ends L L pivoted to the animprovement upon a former invention forward ends of the bars 0 C. The rear sup- 2 5 granted to me by Letters Patent dated N oplemental lifting-bars L L are likewise pivvember 27, 1894, as hereinafter set forth. oted at their lower ends to the truck-rails B B,

In the accompanying drawings, forming a and at their upper ends they are pivoted to part of this specification, and in which like the body-rails B B at such points l as will letters of reference indicate corresponding best sustain the wagon-body and load in sta- 8o 0 parts, Figure l is a side elevation of the imble equilibrium.

proved dumping-wagon with the body ele- The lifting-bars O O L L L L are so provated in position for dumping. Fig. 2 is a portioned,arranged,and pivotedtogether that perspective view of the rear end of the wagonthe combined distances between the points body, showing the construction that it is pre- Z and 1 and between Z and Z are equal 35 ferred to use for the discharge of sand or to the combined distances between the points other loose material. Fig. 3 is a side eleva- Z andland between Z and Z. Therefore the tion of the wagon-body and truck-rail, illussaid bars may be folded togetherhto lie pertrating more particularly the means for refectly fiat between the truck-frame bars. taining the rear end of the body at any de- To the forward ends of the bars 0 C and to o sired elevation; and Fig. 4 is a vertical secthe body-rails B B are pivoted bridle-bars tional view of the rear end of the wagon and d d, the said bars being hinged at or about truck-rail. the longitudinal centers of the same, which Referring more particularly to the drawhinging is necessary in order to enable the ings,Adesignatcs the wagon-body,which may bars to accommodate themselves to the dif- 5 45 be of any desired construction. The frameferent heights of elevation of the wagon-body work upon which the body A rests consists, when the latter is being elevated or lowered as is usual, of the truck-rails B B, superimpreparatory orsubsequent to the act of dumpposed upon any suitable gearing capable of ing. One of the bridle-bars c c is provided sustaining the great weight that such vehicles with a lug or projectiond which when the I00 50 are required to carry, and these truclnrails bars are in their straightened position en- :hnay be variously constructed and strengthgages with the odge'of the opposite bar and prevents further relative movement between the bars.

As shown, when the front of the wagonbody is at its greatest elevation the bridlebars (Z (Z are in astraight line, this straightening being effected by pivoting the horizontal levers C to the lifting-bars L" at a greater distance from the points at which the said bars are pivoted to the truck-frame than that between the points of connection between the said levers with the lifting-bars L and the point at which the bars L are pivoted to the truckframe. 'hen the body is in its lowered position, the distance between the points 1' and Z is smallest; but as the body is lifted the distance between these points 'raduallyincreases, carrying the body rearwardly relative to the horizontal levers t", and consequently straightening the arms (3 c of the bridle-bars.

By referring to Fig. 1 it will be seen that when the power to elevate the wagon-body is applied to the crank E and thence transmitted by the medium of the engaging gears to the lifting-arcs LL the latter will be elevated in a vertical plane, and by said elevation the rollers pp will be caused to roll freely forward upon the lifting-bars C O, and in so doingthe supplemental lifting-bars L L and L" L, in consequence of their being pivoted tothe forward and rear ends of the said bars 0 C, are raised from their horizontal places of rest to an inclined position, and while maintaining their mutual parallelism are elevated continuously to a position at about forty-five degrees to the truck-rails B B.

During the elevation of the wagon-body A the arms 0 c of the bridle-bars (Z (Z approach constantly from an acute-angular connection when at rest to that of a right line of prolongation when the forward end of the body reaches its greatest elevation, and when so elongated the function of said bridle-bars is to retain the forward end of the wagon-body in a state of rest while the rear end of the body is being lifted to its maximum elevation.

In adapting the body A for use in dumping sand, lime, or other similar material it is preferred not only to widen the entrance to the discharge-spout S to a degree nearly as wide as that of the body itself, but also to incline the inner vertical side to the body rearwardly at such an angle as will be in a right line with that of the vertical sides of the said spout, as indicated in dotted lines, Fig. 2.

To further facilitate the operation of dumping, the rear vertical end of the wagon-body is constructed in three longitudinal sections, which are designated as upper section F, intermediate section G,and lower section ll, the intermediate section being stationary and secured terminally to the rear ends of the sides of the body. The upper section F is hinged at its lower horizontal edge to the upper horizontal edge of the fixed section G, and the lower section is hinged at its upper horizontal edge to the lower horizontal edge by shoveling, the height of the top of the body A being thus reduced by the vertical breadth of the said section F. In event of the material to be discharged not requiring the use of the maximum discharge-opening obtained by swinging the section ll'upward a lifting-door Iii is employed, which door is located centrally of the lower section II, and is capable of being lowered or elevated at will by means of a lever N, terminally swiveled at the point it to the section ll and pivoted centrally of its length to a swinging bar 0, one end of the lever being left free to be grasped by the operator for the purpose of elevating or depressing the same to operate the door.

The wagon-body A is capable of being divided into two or more compartments forthe reception of different kinds of coal, and when so constructed the rear compartment is necessarily the first to be emptied. This emptying of the rear compartment tends to throw a preponderance of weight to the forward end of the body, which tends to cause the said end to descend before the discharge of the contents of the rear end. To obviate this, devices are attached to the rear end of the body, which when properly adjusted operate to retain the said end at any desired point of elevation and at the same time prevent the premature descent of the front end of the body. As shown, these devices consist of two bars or levers r r of unequal lengtlnwhieh are pivoted to each other at one end and at their free ends are pivoted to the truck-rails B and body-rails B, respectively, the point at which the bar 7" is pivoted to the bodyra-il being rearward of the pivotal point Z of the lifting-levers L. \Vhen the wagon-body is resting ripen the truck-rails B, the said bars 0 r lie substantially parallel to each other. \Vhen,however,the bod y is at its highest point of front and rear elevation, the two bars 1' i" have arrived at their maximum point of sepa ration. At this juncture and preparatory to the deliverance of the load or a part thereof a pin it is passed through a perforation of a continuous guard-plate GE and made to impinge against the upper edge of the shorter bar 1', thereby preventing said arm from rising and maintaining the longer arm r in its proper relative position. By this means the front end of the wagon-body is prevented from descending until the load is discharged and the pin it withdrawn from engagement with the guard-plate G. \V hen not in use, the pin M is suspended freely by means of a chain it, which prevents it from being misplaced. 13y

arranging the friction-rollers of the liftingares L L to engage the horizontal lifting-bars O 0 instead of the body-rails the arcs maybe made shorter and very much cheaper. The wagon-body may also be lifted a greater distance by this construction for the reason that the curvature of the lifting-are being a segment less than a quadrant, which latter are is the limit of the body elevation, the excess of said quadrant operates to depress the rear end of the body without elevating the front end, since the body is practically balanced as near as possible upon its longitudinal center. This is particularly true of wagons of one-ton capacity, where a greater height of elevation is desirable. Another advantage of this arrangement is derived from the improved leverage attained by the use of the horizontal lifting-bars C O and their connections, by which the body may be elevated with greater rapidity than is possible where the liftingarcs L L engage directly with the body-rails 13.

It will be obvious that in consequence of both pairs of inclined lifting-levers being pivoted to the truck rail at their lower ends their upper ends when in motion describe arcs of circles, and being attached to the wagonbody necessarily operate to shift the said body rearwardly. Moreover, the space thus traversed by the body during the time of elevating is considerable, and hence it will be obvious that a less length of chute is necessary to convey the load than would be required if the body had no such retrograde movement. It follows also by the use of the present arrangement of lifting T levers, aggregating a greater degree of rigidity and rapidity of action in their respective vertical planes, that the use of the rear guides, boxes, and rollers that have been necessarily employed in prior constructions are dispensed with.

Vithout limiting myself to the precise construction and arrangement of parts shown and described, since it will be understood that various modifications may be made in such con struction and arrangement without departing from the spirit of my invention and that some of the features of my invention may be used without others,

What is claimed is 1. In a dumping-wagon the combination with a body and its frame, of the truck-fram e, three pairs of lifting levers or bars, the first pair of said levers being pivoted at their lower ends to the truck-frame and at their upper ends to the forward ends of the second pair of horizontally-arranged levers, the rear ends of said second pair of levers being pivoted to the third pair of levers which third pair of levers are pivoted at their lower ends to the truck-frame and at their upper ends to the body-frame, and operating mechanism com prising lifting-arcs the upper ends of which engage with bearing-surfaces of the second pair of lifting-levers and means for elevating and depressing the lifting-arcs, substantially as described.

2. In a du'mpingnvagon, the combination with the truck-frame, of the body and its frame, a pair of lifting-levers, bridle-bars consisting of two arms articulating terminally each to each, the upper ends of the upper pair of arms being pivoted to the body frame and the lower ends of the lower pair of arms being pivoted to the lifting-levers, and means for elevating the lifting-levers, substantially as described.

3. In a dumping-wagon, the combination with the body and its frame, of a truek-frame, a lifting-lever pivoted to the truck-frame and to the body-frame, means for elevating the lifting-lever, two arms pivoted to each other, one of said arms being pivoted to the truckframe and the other being pivoted to the body-frame at a point rearward of the point at which the lifting-lever is connected there to and means directly engaging one of said arms for locking the arms against movement relative to each other, substantially as described.

l. In a dumping-wagon, the combination with the body and its frame, of a truck-frame, two pairs of liftingdevers pivoted to the truck frame at their lower ends, one of said pairs of levers. being also pivoted to the bodyframe, a pair of horizontal levers pivoted to both pairs of lifting-levers, and means engaging the horizontal levers to elevate the lifting-levers, substantially as described.

5. In a dumping-wagon, the combination with the body audits frame, of a truck-frame, two pairs of lifting-levers pivoted to the truckframe at their lower ends, one of said pair of levers being also pivoted to the body-frame, a pair of horizontal levers pivoted to both pairs of lifting-levers, means engaging with the horizontal levers to elevate the liftinglevers, a pair of pivotally-connected bars, one of which is pivoted to the body-frame at a point rearward of the pivotal point of the liftinglevers, and the other one of said bars being pivoted to the truck-frame, and means for limiting the separation of said bars, substantially as described.

0. In a dumpingwvagon the combination with the body and its frame, of the truckframe, twopairs of lifting-levers pivoted to the truck-frame and connected to the bodyframe, a pair of horizontal levers connecting the said pairs of lifting-levers, lifting-arcs adapted to engage the horizontal levers to elevate the same and means for elevating and depressing the lifting-arcs, substantially as described.

7. In a dumping-wagon, the combination with the body and its frame, of the truckframe, two pairs of lifting-levers pivoted to the truclz-frame, bridle-bars connecting the upper end of the first pair of levers with the body-frame the second pair of levers being pivoted at their upper ends directly to the body-frame, a pair of horizontal levers connesting the two pairs of lifting-levers, and means for elevating the lifting levers, substantially as described.

I'IO

S. In a dumping-Wagon, the combination In testimony whereof I have signed my with the truck and body frames, of means for name to this specification in the presence of elevating the body-frame above the trnektwo subscribing Witnesses.

frame, comprising in part a pair of horizontal J OIIN T. RIOIIARDSOX. 5 levers, lifting-ares engaging with the horizon- Witnesses:

ta l levers, and means for elevating the lift R. S. CARE,

ing-ares, substantially as described. CHAS. C. STROH.

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