US1999837A - Dump wagon - Google Patents

Description

DUMP WAGON Original FiledFeb. 8, 1933 4 Sheets-Sheet l Inventor.- JVMOZOI'QCZEI-dg JJ ZZWQMAQ 4 Sheets-Sheet 2 T. C. HARVEY DUMP WAGON f'zo'erzzor:

Original Filed Feb. 8, 1953 A ril 30, 1935.

8, 1935 4 Sheets- Sheet 3 T. c. HARVEY DIUMP WAGON Original Filed Feb.

I April 30,

A ril 30, 1935. 1 Q A Y 1,999,837

DUMP WAGON Original Fi led Feb. a, 19:55 4 Sheets-Sheet 4 fzdenionfleodore CE'rr'de Patented Apr. 30, 1935 1,999,837 DUMP WAGON V v Theodore 0. Harvey, lhiladelphia, Pa. Original application FebruaryS, 1933, Serial No.

' 655,744. 'Divided and this application 'June 6,

1934, Serial No. 729,223

1 Claim.

This is a divisional application of a co-pending application filed February 8, 1933, Serial No. 655,744, wherein the described invention relates generally to dump wagons, the broad object of which is to provide a wagon of the class described which is capable of various operations in order to expedite and facilitate the discharge of the load therefrom in a manner most convenient to the operator as well as minimizing traflic obstruction.

An object of the present invention is to provide a dump wagon having a bottom discharge and capable of being automatically emptied or unloaded, partially or .wholly from either "side of the wagon body.

Another object in view, is to provide for emptying the load partially or wholly from the bottom.

Another object in view, is to provide for directing the discharging load toward either side, bot-' tom, front and rear or practically in almost any direction downwardly or inclined from the botto discharge opening of the load body.

Another object in view, is to provide means operable either from the operators compartment orthe ground and whereby. a plurality of. outlets may be separately or simultaneously operated with the body in either elevated or lowered position.

Another object in view, is to provide means for the carriage of separate units or difierent materials and permitting separate or combined discharge of said load units.

With theabove and other objects in view, the invention consists substantially in the combination, construction, location and relative arrange.- ment of parts, all as will appear more fully hereinafter, as shown in the accompanying drawings and as finally pointed out in'the'appended claim.

In the accompanying drawings:

Fig. 1 is a side elevational vview of a dum wagon constructed in accordance with and embodying the principles of the present invention; Fig. 2 is a vertical, longitudinal section through the dump wagon;

Fig. 3 is a plan view of the dump wagon embodying the present invention;

Fig. 4 is a top plan view, partly in section, of the foundation board;

Fig. 5 is a side or edge view of the foundatio board, partly in section; I

Fig. 6 is a transverse sectional view taken along the line x-r of Fig; 5; n

Fig. '7 is a fragmentary horizontal sectional view-showing the hand levers for operating the outlet trap doors; Fig. 8 is a perspective view of the bottom trap (01. ass-a7) door frame, showing a portion'of the trap door operating means; and s Fig. 9 is an enlarged fragmentary cross sectional view-on theline z-z of Fig-8. 'Referring'now more particularly to the drawings, it will be observed that the wagon body or receptacle for the load as shown is .of inverted frusto-pyramidal shape. While this is the preferable shape, it will be understood that theinvention or inventions to be described more fully hereinafter are equally applicable to bodies or load receptacles of different shapes than that.

shown in the drawings, the principal character;-

frame member being more particularly shown in Figure 8. As clearly appears in this latterfigure the frame member II is provided with-intersect ingdivision strips l2 and I3 whereby to provide a plurality of substantially. equal-sized openings I4, each of which constitutes, when the frame II is attached to the bottom of the load receptacle ID, a discharge outlet. It will be apparent that by the provision of the four discharge outlets, the

. material contained in the body may be discharged through any outlets.

As appears most clearly in Figures 2 and 8 each of the discharge outlets I4 thus provided in the bottom of the body is adapted to be opened and closed by a horizontally arranged slidable closure member I5, these closure members I5 being all movable in directions extending longitudinally of the main body Id As'appears most clearly Fig. 9, the. closure members I5 .are respectively slidable within opposed longitudinally extending rabbets It formed in the inner bottom edges of one or more of the said discharge the longitudinally extending side bars of ",the- 4 frame II as well as in the opposite bottom edges of the longitudinally extending division strip I2 of-said frame, the closure members I5 being re longitudinally extending division strip I2fof' the f frame l I. Fixedly secured to each of the closure,

l8 the toothed edge of which is presented downwardly and the outer free end of which is provided with a laterally extending pin l9 and a terminal 7 eye 20 for purposes which will be apparent hereinafter.

As appears most clearly in Figures 1 and 5, the main body I0 rests upon and is directly supported by a foundation board or platform 2! having formed therein an elongated central opening 22. This platform 2| is adapted for vertical movement together with the main body It supported thereby by the means disclosed and described in detail in the aforesaid co-pending application. The platform 2| is, of course, disposed ina substantially horizontal plane above the 'vehicle frame,

the latter comprising an upper frame member 23 and a lower frame member 24. The fore and aft ends of the truck frame are preferably in the formof partially boxed-in sections having the substan tially closed side walls 25 and 26, said sections being of such character as to provide aninter-- vening section the opposite side walls of which are open; as at '21. Disposed within the intervening section andrsuitabl-y secured tothe bottom end of the main body IE! is a revoluble discharge chute :28, the truck frame members 23 and 24 being vertically spaced apart a distance sufficient to .allow for the desired vertical and rotative movement of the discharge chute 28.

The upper and lower frame members 23 and are respectively of substantially rectangular formation, thus affording'openings therein. of sufficientsizeto permit not only a vertical movement of the discharge chute 2B but also a circular movement thereof when the body I9 is in lower position, the openings 21 in the side walls of the intervening section of the truck frame being of sumcient length and depth as to permit the free movement therethrough of the outer end of the discharge chute. Preferably, the free end of the discharge chute extends somewhat beyond the side limit: of the vehicle frame when the chute is directed into position for discharging the load" from the side of the-vehicle, thereby facilitating the filling of receptacles from either side of the vehicle when the main body 40 is in its lowered position. Atthe same time; .by so arranging the discharge chute that its outerend'extends through the opening 21 of the vehicle frame, the attachment of anextensionchute, (-not shown) is-great- 1y facilitated. The means foneffecting the rotation of the discharge chute Z8-is not described in detail herein, although it is so described in my copending application aforesaid 'to which reference is herein made.

Refer-ring now j more particularly to Figures 1, 2, 4 and 5,11; will be observed thatthe-mech-v anism for operating the bottom trap doors !5 includes .a forwardpair oftransversely extending shafts 29 and 29a and a rearward pair of transversely extending shafts 3B and 39a, each of said shafts being suitably journalled upon the.

bottom surface ofjthe foundation board or platform U. The shafts Z9 and 29a respectively have fixed thereto the pinions 3| and 3m, while the shafts 30 and 30a have respectively fixed thereto the pinions 32 and 32a, it being observed that the pinions 31, 3 la, 32 and 32a, are relatively so locatedthat they respectively engage the longitudinally extendin'grack "bars !8 which are respectively secured to the several trap doors 15 (see Figure '8). Secured to the outer extremities of the transversely extending shaft 29 are a pair of hand wheels 33, the transversely extending shafts 29d, 30 and 30a. being similarly prowided 7 34, .34a,.35 and 35a (see Figures 4 and 5), the

pinions 35 and 35a being respectively in toothed engagement with the reverse motion pinions 36 and 36a. Slidable within suitably formed grooves 31 formed in the bottom surface of the foundation board or platform 2 hare the longitudinally slidable rack bars 38, these rack bars being held .in position against vertical displacement from their respective grooves 31 by means of the cover plates 39 and 40. The several rack bars are respectively in mesh with the pinions 34, 34a, 35

and'36a. 1

Connected to they forward extremity of each of the rack bars 38 is'a cable '4I, itbeing ob-' served that four such cables are necessarily required, theportions of the cable which extend longitudinally of the foundation board 2| .(see Figure 4) being arranged in laterally spaced parallel relation. As appears most clearly in Figures 1 and 5, the cables -41 respectively pass around a plurality of pulleys 42 which are journalledv upon the forward edge'of the foundation board'or'platform 2 l and thence extend upwardly and over the pulleys 43, 43a, 44 and 44a, the free endsof the cables being finally secured to the terminal ends of a plurality of hand-operated levers 45, 45a, 46 and 46a. Preferably, the lastmentioned end levers are arranged in pairs, the levers 45 and 45a constituting one pair, being mounted upon a short stub shaft 4T (as see Figure '7) which "is suitably secured to for projectionforwardly from the front face of the main body. Hi. The hand levers 46 and 46a, constitut-.

ing the second pair, are similarly mounted upon a stub 'shaft'which ispreferably located vertically :above the first-mentioned stub shaft.

As'appears most clearly in Figure '7, each'of the hand-operated levers 45, 45a, 46 and 46a is provided with a ratchet wheel 48, these ratchet wheels being adapted-for respective engagement by the detents '49, it beingunderstood, of course,

that any suitable means or the likefmay be provided for .normallymaintaining said detents out of engagement with their respective ratchet wheels. As appears most clearly in Figures 1 and that the arms of the levers 45 and 45 are respectively shorter'than the corresponding arms of the levers 45a and 4611. This enables the operator to operate the levers independently of one another or simultaneously. 'The' hand grips 59 of the lower pair of hand levers are adapted to be commonly grasped by one hand of the operator while the hand gripso'f the upper pair of-hand levers are adapted to be commonly grasped by the other hand of the operator, thereby making it possible to operate all of the levers in unison whereby to open or close all of the trap doors inunison. Or, if desired, the several hand levers may be operated selectively,either individually or in pairs, to open or close any one or more of the trap doors $5 'in' the-bottom of 'the main body H1.

And it willbe apparent, of course, that'th 56 and 'I, it'will be observed that each of-the hand-= operated-levers is provided with'a hand grip 5B- effected by the operator. of the vehicle without leaving the drivers compartment through the openingor closing of these trap doors maybe medium of the hand-operated levers 45, 45a, 46 and 48a. .If, however, the operator is standing on-the ground upon one side or the other of the vehicle, the trap doors may be selectively opened or closed by operating one or the other of the hand wheels 33. .-As appears most clearly in Figure 7, the hand-operated levers are preferably weighted adjacent the grip ends thereof whereby to take up the cable slack when the bottom trap doors are opened or closed by means of the hand wheels 33.

Still another means is provided for opening and closing the bottom trap doors i5, this latter means including a plurality of flexible cables 5! which are respectively terminally attached to the eyes 25 of the rack bars I 8, the cables 5| being respectively passed over the pulleys 52 which are journalled in the foundation board or platform 2!, the free ends of the several cables 5| being looped, as at 53, to provide hand grips by means of which the operator, standing upon the ground, may pull one or the other of the several cables 5| to open the desired trap door or doors 25 (see more particularly Figure 2).

As appears most clearly in Figures 1 and 2, the main body it? has pivotallymounted at opposite sides thereof, as at 54, a pair of laterally spaced thrust arms 55, one such arm being provided for each cable 51 Each of the thrust arms 55 terminates in arcuately curved portions having an arcuated slot within which is adapted to be projected the pin is of the rack bar l8. A contractile spring 58 connects each thrust arm with a point with the main body Iii, these springs serving normally to pull the several thrust'arms 55 toward the body and in so doing causes the trap doors E5 to be respectively moved into closed position, this latter action being effected through the slot and pin connection between each thrust arm 55 and its associated rack bar l8.

It will be understood, of course, that as the trap doors !5 are pulled into open position by means of the cables 5 i, the transversely extending shafts 29, 29a, and 39a (see Figure 4) will be correspondingly rotated, this being due to the fact that these shafts are respectively geared to the rack bars i8 of the trap doors l5. In order to positively maintain the doors I5 in open position for a considerable period of time, as when the entire load in the main body is to be discharged in a single operation, the said transverse shafts 29, 29a, 39 and 35a are respectively provided adjacent one or both ends of each thereof with a suitable ratchet and pawl device, the ratchet wheels being designated by the reference numeral 57 and the pawls or detents by the reference numerals 58 in Figure 4.

It is preferable to provide some means for subdividing the main body lil into a plurality of individual compartments and to this end there is provided a pair of vertical sections 59 and 68 and a second pair of vertical sections 5! and 62, these vertical sections being so arranged that when properly positioned within the main body Iii they constitute in effect a longitudinally extending partition which is intersected substantially at right angles by a transversely extending partition, the longitudinally extending partition being disposed substantially in theplane of the division strip E2 of the bottom frame ii and the transversely extending partition being disposed substantially in the plane of the transversely extending division strip l3 of the bottom frame I I; There is thus providedfour compartments which are respectively provided with the discharge openings 54 (see Figure 8), each of which openings is provided with its own individually operated trapdoor l5, as already described.- The four compartments so provided .are thus adapted to be filled'with different materials for individual or selective discharge through their respective discharge openings or the four compartments may be filled with material adapted to be discharged in one operation bysimultaneously opening all of the trap doors l5. Preferably,the upperedges of the division strips 52 and it of the frame ll. surrounding the bottom opening in the main body it are grooved or slotted longitudinally thereof to snugly accommodate the bottom edges of the division wall sections59'to 62.

As appears most clearly in Figures 2 and 8, the

intersecting division strips l2 and I3 of the frame a H are each provided with upwardly converging opposed surfaces 63 and 6d, the grooves within which the division wall sections 59 to 6 2 aforesaid are respectively accommodated being provided substantially in the ridges of the so tapered division strips. This construction affords a joint between each vertical wall section and its supporting division strip which is free of sharp corners and so facilitates the free and completedischarge of even the smallest size particles through the bottom openings of the body of the vehicle.

In order to conserve space and prevent spilling of the load in connection with the use of the revoluble chutes discharge 23 as well as to afford a means for directing the discharge of the.mate

rial from anyone or more of the openings M toward a common or concentrating point, a demountable frame 65 is employed (see Figures 2 and 3), this frame being provided with sloping side walls which converge downwardly to form a bottom opening disposed substantially in a hori- Zontal plane lying below the common plane of the discharge openings M. This frame 65 substantially encompasses the four discharge open.-

as a funnel the enlarged upper extremity of which is adapted to collect the material as it is' discharged from any one or more of the openings M, the material being then discharged through the restricted bottom outlet thereof without any loss due to spilling.

From the foregoing description, when considered in connection with the accompanying drawings, it will be observed that a vehicle has been produced in which the outlet trap doors in the bottom of the main body are adapted to be operated from the seat selectively and individually, or in pairs, or they may be all operated simultaneously. Furthermore, these trap doors may be operated from the ground and with the effective means for stabilization of a part load in order to afford safer transit over rough roads.

It will be understood, of course, that the invention is susceptible of various changes and modi-- fications which may be made from time to time without departing from'the real spirit or general principles thereof and it is accordingly intended to claim the-same broadly, as well as, specifically, as indicated in the appended claim.

What isclaimed as new and useful is:

A dump wagon of the character described com prising, in combination, a main load receiving body having a downwardly converging section V terminating in the horizontally disposed bottom discharge opening, said body being partitioned interiorly thereof to provide a plurality of separate and independent compartments, each of said compartments being adapted to discharge the load containedxtherein through said bottom discharge opening, "the latter having secured to its marginal edge a frame having intersecting division strips respectively defining separated discharge outlets communicating withrsaid compartments,

said division strips being beveled or tapered in their upper surfaces to facilitate the discharge of the material fromsaid compartments through their respective discharge outlets, and a funnel-

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