US1466919A - Dumping wagon - Google Patents

Description

Sept. 4, 1923.

E. W. WINANS DUMPING WAQON Filed Aug. 18 1919 5 Sheets-Sheet l Sept. 4, 1923.

E. W. WNANS DUMPING'WAGON Filed Aug. 18 1919 5 Sheets-Sheet 2 gmc/who@ Sept. 4, 1923.

E. W` WINANS DUMPING WAGON @Wma/x30 l l E 5 Sheets-Sheet 5 Filed Aug. 18 1919 and NETE. STATES EARL W. WINANS, 0F DETROIT, MICHIGAN, ASSIGNOR TOFEDEBAAL MOTOR TRUCK A CMPANY, OF DETROIT, MICHIGAN, A CORPOBATION'OF MICHIGAN'.

DUiuriNe WAGON.

To all whom z't may concern Be it known thatI, EARL W. WINANS, a citizen of the United States of America, residin at Detroit, in the county of Wayne tate of Michigan, have invented certain new. and useful Improvements in Dumping Wagons, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to improvements in dumping wagons pertaining more particularly to wagons of this type in which the wagon body is shifted from one osition to another when the load is to be umped, the shifting being by means of suitable power mechanism, although the invention contemplates other ways in which the shifting movements can be provided.

Various types of dumping wagons have heretofore been provided and employed, these being of different types,some employing the general idea of supporting the wagon body on a frame while the load is being transported the body being shifted longitudinally of the frame and permitted to tilt over the rear of the frame during the dumpl ing of the load; this type, however, practi cally unloads the load in bulk, since the general arrangement is such as to provide a discharge of the load as rapidly as possible, the result being that wagons of this type are practically limited to use where it is desired to dump the load into ile formation at a convenient point accessible to the wagon itself. Another type is designed more particularly for use where the load is to be' deposited or delivered at a point removed or remote from the Wagon body at the time of dumping, this type generally operating so as to cause the load to be disch-arged in a relatively small stream a suitable conduit or chute being provided for passing the load from the body of the wagon to the point of delivery, generally by a gravity operation. It is to this latter type of dumping wagon that the present invention more particularly pertains.

Certain problems are involved in connection with the production of a satisfactory dumpingwagon of this latter type. For instance, t e discharge outletis generally small and located at the rear of the wagon body,

.terially less than that of the first t thus enablingl the chute or conduit to be conveniently connected to the body to permit the load to be readily discharged and delivered to the point wanted. This involves the use of an arrangement in which the inclination of the bottom of the wagon body is ma yet the inclination must be such as wil ,practically insure that the contents of the wagon will be properly discharged from the outlet under thef usual gravity operation. This particular feature has generally been met by pivoting the rear of the body portion to the supporting frame, the forward end of the body being raised from and to positionv ficient inclination can be given to the chute or conduit which transports the load by gravity from the wagon, it being understood, of course, that as a general rule, the, discharge end of the chute orconduit ma be below the plane of the road, but in such case the conduit itself must pass the plane so `that the length of the base of the triangle of which the conduit or chute forms the hypothenuse is restricted to a length which will provide an eflicient inclination to the chute.

It has been found, however, that favorable conditions, such as just pointed out, are found only at infre uent instances, especially in the ease of cities and towns where the delivery of coal is made by wagons of this general type. Here it is generally found that Ythe oint where the icoal is stored is within t e basement or cellar of the residence, generally below the road level and a distance from the curb such as would produce a length of triangle base such as'to preclude the provision in the type just described of an inclination to the chute sufcient to provide the head necessary to cause.

charge outlet from the wagon must be raised aAsuicient distance to produce the desired head, it being readily understood that where the base of the triangle is increased in length, the altitude which represents the distance from the roadway to the discharge opening of the wagon body, must be correspondingly increased, in order that at least the minimum inclination required be obtained on the hypothenuse side of the triangle. In addition, such increase in length of base also brings in the additional factor of increasing the angularity of the hypothenuse, for the reason that the greater length of travel ot' coal over the chute increases the resist-ance and consequently requires an increase in the head.

lVhile attempts have been made to meet these conditions, by permitting the rear of the wagon body to be raised from the frame, these attempts, so far as I am aware, have been practically limited to utilizing a connecting member which connects the front otl the wagon body to the rear of the frame, a second member being employed at the rear, the two members acting somewhat 0n the general idea of a lazy tong formation. Such construction makes possible the elevating of the wagon body, but to produce this result it is practically necessary that the second member have one of its ends moved in the direction of length of the supporting frame itself, an arrangement which makes it diliicult to provide an operating structure which will permit this movement. It may be obtained by the use of threaded members extending lengthwise of the wagon, or by the use of a drum located between members in such manner that winding of a cable or chain on the drum will serve to draw the end of one of the members inwardly towards the other members, changing the angularity of the crossing lines of an X, for instance.

Either arrangement, produces a cumbersome and expensive construction more or less time consuming in operation, and also requires the use of a cumbersome and ex pensive member formation in order that the wagon body may be properly supported when it has been elevated with its load contents. In addition, the extent of elevation of the body is more .or less limited by reason of the inability of the particular leverage to produce greater elevation and still remain within the dimensions permitted in the wa on body for this purpose.

e present invention is designed more particularly to meet and overcome these general objections and at the same time provide a number of positive advantages in connection with the use. For instance, it

rovides for a greatly simplified form of everage positive in action and yet simple in operation and capable of being utilized in such form as to be stable under maximum load conditions; another feature is the material extension in limit as to length of elevating movement of the wagon body; another advantage lies in the fact that, if desired, the inclination of the wagon body itself relative to the supporting frame may increase proportionately to the increase in length of elevation; another feature is the ability to employ a power or hand operating device which Operates on the principles of a simple hoist, the leverage being so arranged that the desired elevation can be had to a maximum extent by the use of ap paratus which is not of excessive length of projection above the frame itself, thus not only providing for attractive design, but in addition enabling the wagon to be employed at places where the overhead room is more or less limited.

Further objects of the invention are to provide a construction and arrangement which is simple and eiiicient in operation, durable in construction, and which can be manufactured and installed at minimum cost and which is capable of continued operation at small maintenance cost.

To these and other ends, therefore, the nature of which will be readily understood as the invention is hereinafter disclosed, said invention consists in the improved construction, and combinations of parts, hereinafter fully described, illustrated in the accompanying drawings, and more particularly pointed out in the appended claims.

In the accompanying drawings, in which similar reference characters indicate similar parts in each of the views,-

Figure 1 is a side elevation illustrating generally the parts utilized in producing the elevating action of the dumping wagon body, the specific type of mechanism for producing the hoist being omitted;

Fig. 2 is a top plan view of the structure of Fig. 1, the wagon body being omitted to permit clearer showing of the elevated mechanism;

Fig. 3 is a side elevation of parts shown in Fig. l, with the wagon body raised or elevated;

Fig. -t is a side elevation illustrating a modilied forni of operation which may be provided b v temporarily disengaging a portion of the lever connections;

Fig. is a view similar to F 1 with the exception that a different part of the lever connection is disengaged; y

IFig. 6 is a side elevation showing the present invention as applied to a dumping wagon carried by a motor vehicle, the view illustrating one type of hoisting mechanism 'which may be employed in elevating the body portion;

For purposes of illustration the invention is shown as applied to a dumping wagon forming part of a motor vehicle construction, this being shown in Fig. 6 in which A indicates the motor vehicle chassis including a chassis frame afmounted on wheels -a-, this being of a more or less general type, B indicating the wagon body part of the general structure and being itself of any well known type. The hoisting mechanism is shown as of a type in general use operating under hydraulic principles with a vertically movable piston which may operate under oil-transfer principles and being operative to produce the holst action, this hoist unit being indicated generally at C.

To indicate the type of hoist apparatus, it may be noted that the piston carries a cross head on which are mounted a pair of pulleys at opposite ends of the cross head, these pulleys being adapted to carry a cable one end of which is fixedly secured to a support on the frame, the opposite end of the cable being secured to the elevating structure presently described, the vertical movements of the piston serving to shift the position of the elevating structure along the lines of the usual cable transmission principles. This particular form of hoisting apparatus isl illustrative only, it being readily understood that any other form of apparatus may be employed, so long as the structure will permit of the provision of a flight cof cable or equivalent member movable in a generally vertical direction, it being understood, of course, that the direction may vary from the vertical, the latter, however being preferable for the reason that it corresponds to the altitude and therefore provides for maximum elevation within a given length of movement of the cable flight.

The present invention pertains more particularly to the means for connecting the wagon body B to the chassis frame -a-, the means being operative to provide for durable and eicient support for the wagon body under all load conditions and at the same time provide for ready elevation of the wagon body to desired positions by the movements of the flight -c-. This means will now be described in detail.

10 designates a frame member which may be termed an elevating frame. This member is supported at its rear end by brackets 11 mounted on chassis fra-Ines athe connection between the frame and brackets be- Y ing a pivotal one. The frame 10 may be formed in any desired manner, that shown in the dra-wings embodying side members of channel iron or steel, these being connected by braces in any suitable manner in order to produce' a rigid frame structure capable of withstanding all strains to which the frame may be subjected.

The frame 10 in its normal position,-the position in which the wagon body is in its lower position-extends practically parallel The advance or forward end of the elevating v frame carries a member or members 13 to which the free end of flight -cof the cable is connected; if desired, and such arrangement is preferred, member 13 may have the general configuration shown in the drawings in which the member is more or less angular in its general direction of length thus permitting the point of'attachment of cable -cto be located materially below the plane of chassis frame afwhen the frame 10 is in its lower or normal position; this permits a maximum elevation of the wagon body to be had without necessitating the use of a hoisting mechanism of excessive projection above the plane of the chassis frame -a-, permitting the dumping wagon to operate under conditions of restricted overhead room.

It will be therefore seen that frame 10 affords a direct connection between the hoisting structure and chassis frame a, the connection being a pivotal one with the pivot located at the rear 0f the two frames 10 and -a, so that when the hoisting mechanism is raised or lowered, frame 10 forms a sim le pivoted member the forward end of which describes an arc of which the rear pivot is the center, the length of the arc being controlled by the length of vertical movement of flight -cof the hoisting structure. This movement of the frame 10 determines the movement of the wagon body through the several lever or link constructions now to be described.

14 indicates a lever structure formation pivoted, intermediate its ends, to frame 10 at an intermediate portion in the length of said frame 10, the pivot point being indicated at 15. The lever 14 structurally is in the form of a suitable frame fabricated from strong and substantial material, this particular fabricated frame forming the main supporting element for the wagon body whenever the latter is shifted or elevated from its normal supported position on frame 10 as shown in Fig. 1, the sill frame -bof the wagon body resting upon suitable supporting members 16 carried on the upper face of frame 10. A 7

Leverelement or frame 14 projects on opposite sides of pivot 15, the projecting por`- tions being of different lengths, with the portion of greater length having its free arm pivotally connected to sill frame -b` as at 17 The shorter end of the lever is connected to chassis frame c1- by a link or links 18, one end of the link or links being connected to lever 14 by a pivotal connection indicated at 19, the opposite end of the links being connected to rame -aas at 20, both connections being pivotal, pivot 2O being positioned on frame -aat less length from the pivot point 11a than is pivot point 15 of lever 14.

It will be' understood, of course, that since pivot points 11a and 20 are fixed and stationary, movement of frame 1() on pivot 11 Will shift pivot 19 in a manner similar to the movement of the connecting pivot of a pair of toggles, any movement of frame 10 away from normal position on support 12 shifting the pivot point 19 in a direction towards straightening the toggle formed by lever 14 and links 18 corresponding to the toggle members in such formation, the arc of travel of pivot point 19 being controlled by the length of the links. As a result, lever 14 is moved pivotally on point 15 thus causing the outer end of the longer arm of the lever to be shifted in a path which is the resultant of the control movements of lever 14 provided by the shifting of pivot points 15 and 19 of the lever through the general linkage action, this resultant in the preferred form providing a substantially vertical travel of pivot point 17, the length to travel of the point 17 being always in excess of the length of travel of point 15 by reason of the greater length of the longer arm of lever 14 and the position of pivot 19. Since lever 14 and sill -b-- are pivotally connected, it will be understood that the rear portion of the Wagon body will have its movements controlled by the movement of this lever arm 14.

The Wagon body B, or its sill -bis additionally connected to the frame 10 through a link or links 21, these being pivotally connected to these elements at points 22 and 23. The length of links 21 is preferably less than the length of the longer arm of the lever 14, the presence of links 21 provides with the longer arm of lever structure 14, a construction which serves to produce what may be termed a distorted parallel ruler relation between sill frame Z2- and frame 10. the substantially vertical travel of pivot point 1T being due to the resultant of the combined movements of the parts connecting the sill frame -bwith chassis frame -a-. The travel of pivot 17 generally is not truly vertical but is on an approximate straight line inclined to the vertical, the inclination however, being small, the direction of inclination being towards the rear as the distance between sill frame -b and chassis frame -a.-- increases.

One of the results obtained by the general linkage formation shown and described is the fact that during the elevating movements of the Wagon body there is a gradual change from the horizontal position of Fig. 1 to a position in which the forward end of frame -bis located a greater distance from the plane of frame -athan is the rear end of frame -b-. The change in inclination thus provided is progressive in correspondence with increase in distance of the' wagon body from the chassis rithe rate of progression, however, being small. And this result is obtained althou h frame 10 provides for increase in inc ination or angularity with respect to )frame -ain the same direction but at a greatly increased speed of progression, the movements of frame 10 and sill frame -bbeing dissimilar in this respect although frame 10 is located intermediate sill frame b and chassis frame -a-. This dissimilarity enables the elevating operation to be had to the desired extent by a simple hoisting movement of flight -c-.

As will be readily seen, the general arrangement is of exceeding simplicity. The entire structure is actually a series of levers and links connected together with the connections pivotal in character so that the various points of connection remain fixed relative to each other. This ermits of an arrangement Which is excee ingly simple and at the same time enables the use of structural formations such as will provide for maximum strength to meet the conditions of service. Obviously, the translation of the simple hoisting movement into the elevating movement of the Wa on body through the form of linkage descrlbedwhich practically serves to provide the elevating movements to a desired extent, by the employment of a simple form of hydraulic hoisting structure is of positive value in meeting the conditions of unloading in the presence of surroundin s such as have been heretofore pointed out, te arrangement being such that suicient elevation can be had to permit of the use of a chute or conduit of considerable length without encountering material difliculties in the delivery of the material being unloaded.

While this arrangement is designed more particularly for the use in the manner shown in Figs. l to 3, the apparatus is not limited to use in this relation. For instance, in Fig. 4, the pivot connection at 22 is shown as broken, thus rendering links 21 inactive, the result being that the movement of the wagon body is provided by lever 14, the front portion of the body resting upon frame 10; this permits of a chan e in inclination of the wagon body from t at of the normal operation, even to the extent where sill frame -bcan approach the horizontal, a result which may be of advantage under certain conditions of dump-Wagon operation. 0r, by disengaging the connection between the lever 14 and frame -aras by disengaging pivot 19-fthe apparatus may operate along the lines of an ordinary dumping Wagon of the type in which the rear of the body portion is simply moved pivotally, this latter being illustrated in Fig. 5.

These latter results be obtained by providin pivotal connections at the points indicate of such type as to permitdisengagement of lthe parts which `the pivotconnects.

It will be understood, of course, that this does not requireany special arrangement, being made possible-by the particular character of linkage employed which enables the use of structures, such as can be readily engaged or disen ed without affecting the serviceability o the structure itself or the strength of the completed structure, the driver simply making the changes whenever the conditions are such as to require the use of the dumping wagon in a way out of the normal.

As will be understood, the specific length of elements, and the positions ofthe pivots may be varied to meet individual servi conditions. For instance, one wagon may be designed for use in connection with a service which demands a. slightly different progression of inclination of sill frame bin which case a result can be obtained byvarying the length of one or more of the general parts and a' change of pivot position. In other words, the general structure is such as to permit of exibility in application of the general principles of the formation, and it will be understood that changes thus made are contemplated by the application and invention.

While I have here shownLand described a preferred embodiment of .the invention, it is to be understood that changes and modiiications therein may be found desirable or essential in meeting the various exigiencies of service and use, and I desire to be understood as reserving the right to make any and all such changes and modifications therein as may be found desirable or necessary, in so far as the same may fall within the spirit and scope of the invention as expressed in the accompanying claims when broadly construed.

Having thus described my invention what I claim as new is t 1. In dumping wagons wherein the loadbody is shifted from a normal load-transporting plane when being dumped, a wheeled su port for the body, and means for operative y connecting the body and support to permit such shifting movements of the body, said means including a frame movable relatively to both body and support and normally having a pivotal relation with each at more than a sin le point in the length of the body and o the support to permit variable movement between frame, body and support, the points of pivotal connection being constant as to location in frame, body vand support.

2. In dumping wagons wherein the loadcarrying body is shifted from a normal loadtransporting plane when being dumped, a wheeled support fo'r the body, and means for operatively connecting the body and support to permit such shifting movements of the body, said means including a frame pivotally connected to .said support adjacent one end of the frame, and connections between and pivotally connected to the frame and body to permit, shifting of the body into spaced relation tothe frame with the spacing` variable proportional to the amount of body-shifting movement, the points of pivotal connection being constant as to location in frame, body and support.

3. In dumping wagons wherein the loadcarrying body is shifted from a normal loadtransporting plane when being dumped, a wheeled support for the body, and means for operatively connecting the body and support to permit such shifting movements of -the bod said means including a frame interpose between the body and support, and having a fixedly-positioned pivotal connection with the support,`and a linkage formation pivotally connected to the body frame and support and operative to shift the body relative to the frame by and in the presence of pivotal movement of the frame, said formation including a member operativein the shifting operation and having a direct pivotal connection with both body and frame.

4. In. dumping wagons wherein the loadcarrying body is shifted from a normal loadtransporting plane when being dumped, a wheeled support for the body, and means `for operatively connecting the body and support to permit such shifting movements of the body, said means includln a frame interposed between the body an support and having a tixedly-positioned ivotal connection with the support, and ainkage formation pivotally connected to the body, frame and support, said formation extending on o posite sides of the frame and including a pivotal connection independent of the pivot connections of the formation and body, frame and support, said connection being interposed between the points of connection of the formation with the frame and support.

5. In dumping wagons wherein the'loadcarrying body is shifted from a normal loadtransporting plane when being dumped, a wheeled support for the body, and means for operatively connecting the body and support to permit such shiftlng movements of the body, said means including a frame interposed between the body and support and having a permanent pivotal connection with the support adjacent an end of the frame, and mechanism for operatively connecting the body, frame and support to shift the body relative to the frame pivoted end by and in the presence of frame movement on its ivot, the frame being directly connected to t e power source and forming the means for transmitting power from such source to produce the body-shifting movements.

6. In dumping wagons wherein the loadcarrying body is shifted from a normal loadtransporting plane when being dumped, a wheeled support for the body,l and means for operatively connecting the body and sup ort to permit such shifting movements of t e body, said means including a frame interposed between the body and support and having a permanent pivotal connection with the support adjacent an end of the frame, and mechanism for operatively connecting the body, frame and support to shift the body relative t0 such frame pivoted end by and in the presence of frame movement on its pivot, said mechanism including a lever structure connecting the body and frame, and a linkage structure connecting the lever structure with the support.

7. In dumping wagons wherein the loadcarrying body is shifted from a normal loadtransporting plane when being dumped` a wheeled support for the body, and means for operatively connecting the body and support to permit such shifting movements of the body, said means including a frame interposed between the body and support and having a permanent pivotal connection with the support adjacent an end of the frame, and mechanism for operatively connecting the body, frame and support to shift the body relative to such frame pivoted end by and in the presence of frame movement on its pivot, said mechanism including a lever structure connecting the body and frame, and a linkage structure connecting the lever structure with the support, the connection between said structures being pivotal and being independent of the connections of the mechanism with the body, frame and sup,-

ort. p 8. In dumping wagons wherein the loadcarrying body is shifted from a normal loadtransporting plane when being dumped, a wheeled support for the body, and means for operatively connecting the body and support to permit such shifting movements of the body, said means including a frame interposed between the body and support and having a permanent pivotal connection with the support adjacent an end of the frame, and mechanism for operatively connecting the body, frame and support t0 shift the body relative to such frame pivoted end by and in the presence of frame movement on its pivot, said mechanism including a lever structure connecting the body and frame, and a linkage structure connecting the lever structure with the support. said lever structure being pivotall;1 connected at its ends vto the body and the linkage structure respectively and at an intermediate point to said frame.

9. In a dumping Wagon wherein the loadcarrying body is shifted from a normal loadtransporting plane when being dumped, a wheeled support for the body, and means for operatively connecting the body and support to permit such shiftlng movements of the body, said means including a frame interposed between the body and support and having a permanent pivotal connection with the support adjacent an end of the frame, and mechanism for operatively connecting the body, frame and` support to shift the body relative to such frame pivoted end and by and in the presence of frame movement on its pivot, said mechanism -including' a lever structure connecting the body and frame, and a linkage structure connecting the lever structure with the support, said lever structure being pivotally connected at its ends to the body and the linkage structure respectively and at an intermediate point to said frame, such latter point being also intermediate the frame ends.

l0. In dumping wagons wherein the load-carrying body is shifted from a normal load-transporting plane when being dumped, a Wheeled support for the body, and means for operatively connecting the body and support to permit such shifting movements of the body, said means including a frame interposed between the body and support and having a permanent pivotal connection with the support adjacent an end of the frame, and mechanism for operatively connecting the body, frame and support to shift the body relative tol such frame pivoted end by and in the presence of frame movement on its pivot, Said mechanism including a lever structure connecting the body and frame, and a linkage structure connecting the lever structure with the support, said lever structure being pivotally connected at its ends to the body and the linkage structure respectively and at an intermediate point to said frame, such latter point being at unequal distances from the lever structure ends.

ll. In dumping wagons wherein the load-carrying body is shifted from a normal load-transporting plane when being dumped, a wheeled support for the body, and means for operatively connecting the body and support to permit such shifting movements of the body, said means including a frame interposed between the body and support and having a permanent pivotal connection with the support adjacent an end of the frame, and mechanism for operatively connecting the body, frame and support to shift the body relative to such frame pivoted end by and in the presence of frame movement on its pivot, said mechanism including a lever structure connting the body and frame, and a linkage structure connecting the lever structure with the support, said lever structure being pivotally connected at its ends to the body and the linkage structure respectively and at an intermediate point to said frame, such latter oint being spaced a greater distance from t e-connection of lever with the body than the distance between such pvoint and the connection of/tl lever with the linkage structure.

12. In dumping wagons, a load-carrying body, a wheeled support, hoist mechanism for shifting the position of the body relative to the support and means for operatively connectinor the body and support to cause the bod shifting movements to produce an angu ar relation between the body and support varying with the length of hoist movement and with the oppositeends of the body each varied as to distance from the support by the variation in angular relation, said means including va frame positioned to space the body and support when the body is in its lower position.

13. In dumping wagonsha load-carrying body, a wheeled support, and means operatively connecting the body and support to provide body shifting movements, said means including a frame pivotally connected to the support and being directly connected to the power source and forming the means for transmitting ower from such source to produce the bo y-shifting movements, and pivoted connections whereby pivotal movements of the frame to change the angularity of the frame relative to the support will cause body shifting movements in directions to vary the angu arity of the body relative to the support, the rate of change in angularity of the frame differing from that of the body, the points of pivotal connection being constant as to l0- cation in frame, body and support.

14.- In dumping wagons, a load-carrying body, a wheeled support, and means operatively connecting the body and support to provide body shifting movements, said means includmg' a frame pivotally connected to the support and being directly connected to the power source and forming the means for transmitting power from such source to produce the body-shifting movements, and pivoted connections whereby `^`pivotal movements of the frame to change the angularity of the frame relative to the support will cause body shifting movements in directions to vary the angularity of the body relative to the support, the rate of change in an arity of the frame differing proportionate y from that of the body, the points of pivotal connection being constant as to location in frame, body and support.

15. A dumping wagon as in claim 13, characterized in that the pivotal connection of frame and support is located at an end of the frame, the opposite end of the latter tively connecting the body and support to provide body shifting movements, said means including a frame pivotally connected to the support, a linkage formation connecting the body, frame and support and operative to shift the body relative to the frame by pivotal movement of the latter, and independent linkage connections between the body and frame spaced from said linkage formation and operative to vary the distance relation between body and frame.

18. In dumping wagons, a load-carrying body, a wheeled support, and means operatively connecting the body and support to provide body shifting movements, said means including a frame pivotally` connected to the support, independent linkage and lever connections between the frame and body at spaced apart points, and linkage connections between and pivotally connect-v ing the lever connection and the support.

19. In dumping wagons, a load-carrying bod a wheeled support, and means operative y connecting the body and support to provide body shifting movements, said means including a frame pivotally connected to the support, independent linkage and lever connections between the frame and body at spaced apart points, and linkage connections between and pivotally connecting the lever connection and the support intermediate the frame and support.

20. In dumping wagons, a load-carrying body, a wheeled support, and means operatively connecting the body and support to provide body shifting movements, said means including a frame pivotally connected to the support, independent linkage and lever connections between the frame and body at spaced apart points with the distance spacing of the linkage connection less than that of the lever connections, and linkage connections between and pivotally connecting the lever connection and the support intermediate the frame and support, the pivot point of the lever connection` and the second linkage connection being spaced from the point of connection of lever connection and frame a distance less than the distance from the point of connection of support and the second linkage connection.

21. In dumping wagons, a load-carrying body, a wheeled support, and operating connections between the body and support to provide elevating movements of the body,

said connections includingr a frame interposed between the body and support and pivotally secured to the latter, independent connections between the body and frame, and means rendered active by frame movements for rendering said connections active in the production of relations of the parallel ruler type between the body and frame.

22, In dumping wagons, a load-carrying body, a wheeled support and operating connections between the body and Support to provide elevating movements of the body, said connections including a frame interposed between the body and support and pivotally secured to the latter, independent connections between the body and frame, one of said connections having a distance length between its point of connection with body and frame different from that presented in another of said independent connections, and means rendered active by frame movements for rendering said connections active in the production of a distorted parallel ruler relation between the body and frame.

23. In dumping wagons, wherein the loadcarrying body is shifted from a normal loadtransportingplane when being dumped, a wheeledsupport for the bod and means for operatively connecting t e` body and support to permit Such shifting movements ot' the body, said means including a frame pivoted directly to the support, independent pivoted connections between the frame and body operative to Aproduce relative movement of body and frame during pivotal movement of the frame` and a link element connecting the support'and one of said connections, said points of connection being so located that one of the connections of frame and body ma be rendered inactive to permit body manlpulation by a remaining connection with a portion of the body supported directly by the frame.

24. In dumping wagons, wherein the loadcarrying bod-y is shifted from a normal loadtransporting plane when being dumped, a wheeled support for the body, and means for operatively connecting the body and support to permit such shifting movements of the body, said means including a framepivoted directly to the support, independent pivoted connections between the frame and body operative to produce relative movement of body and frame during pivotal movement of the frame, and a link element connecting the support and one of said connections, said points of connection being so located that the link element may be rendered inactive at will to permit frame and body movements as a unit during the frame pivotal movement.

In testimony whereof I ailix my signature in the presence of two witnesses.

EARL IV. VVINANS. Witnesses:

G. E. MCGRANN, HORACE Gr. SEITz.

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