US1767243A

US1767243A - Asphalt spreader

Info

Publication number: US1767243A
Application number: US292224A
Authority: US
Inventors: Charles G Kime
Original assignee: BURCH CORP
Current assignee: BURCH CORP
Priority date: 1928-07-12
Filing date: 1928-07-12
Publication date: 1930-06-24
Anticipated expiration: 1947-06-24

Description

June24,1930. l C, Q KME 1,767,243

AS PHALT S PREADER Filed July 4l2, 192B 5 Sheets-Sheet l HM, g NH. Q l' l' N N w f lil w l R Q Q N- w w will mr June 24, 1939. C, G, K|ME 1,767,243'- ASPHALT SPREADER Filed July 12, 1928 5 Sheets-Sheet 2 June 24, 1930. C Q KlME 1,767,243

ASPHALT S PREADER Filed July 12, i923 5 sheets-sheet a June 24, 1930. c. KIME ASPHALT SPREADER 5 Sheets-Sheet 4 Filed July 12 hm. Nm.

June24,1`93o. C. G. KIME j 1,767,243

ASPHALT SPREADER I Filed July 12, 192e 5 sheets-Sheet 5 Patented June 24, 1930 UNIT-ED STA-TES PATENT OFFICE cuantas G. xrnn, or caEsrLrNn, omo, AssIeNon 'ro THE nunca CORPORATION, or

" cRnsTLINE, onro, A conoan'rron or omo.

ASPHALT SPREADEB.

Application led July 12,

This invention relates to means for `spreading road material andparticularly to that type of road machines which consists essentially of an open bottom hopper p provided with means for attachment to a dumping body vehicle to be drawn over the road by the vehicle and spread the material during travel as the material-flows from the vehicle. 'Ih'e present invention is designed more particularly for spreading asphalt, and has for its object the provision of means whereby the width of the spread ma be regulated as well as the depth thereo another object of the invention is to pro-- vide means whereby the hopper may be automatically coupled to the truck andeasily released therefrom. Other objects of the invention will appear incidentally in the course of the following description, and the invention resides in certainnovel features which will be particularly pointed out in the appended claims.

In the drawing's: Figure 1 is a side elevation showin my improved spreader with a portion 0% the rear end of a truck to which it is coupled; Fig. 2 is a front elevation of the spreader; Fig. 3 is a rear elevation of the same;-

Fig. 4 is a transverse section of the spreader looking toward the rear;

Fig. 5 is an enlarged horizontal section on the line 5-5 of Fig. 4; Fig. 6 is a'detail; Fig. 7 is a sectionA showing an agitator; c Fig. 8 is an end view of the same, and Fig. 9 is a detail transverse section of the agitator.

In the drawings, the reference numeral 1 indicates a portion ofA theodumping body of a motor truck and 2 indicates a portion of the rear end of the truck frame or chassis upon which the body is hingedly mounted the body being 3 which ma s discharge o matenal when. the bodyv is equipped with an end gate outwardly to permit- 1928. Serial No. 292,224.

-swlmg to dumping position. In thepresent instance, hangers 11 are secured to the sills of the chassis 2 adjacent the rear end there of, and a cross bar 5 is secured to and extends between the lower ends of these hangers, the hangers bein reinforced by braces 6 extending forwar y therefrom to the sills, as shown. The hopper or body .7 of the spreader has a downwardly and rearwardly inclined front wall 8 upon the front side of which are reinforcing angle bars 9, as shown and as will be understood. 'To the outer reinforcing bars 9 are pivoted the rear ends of draft bars. 10 which extend forwardly and have their frontends formed into hooks 11 with beveled forward lower edges 12 whereby if the truck be backed toward the hopper the front ends of these drafts bars will be caused to ride over the cross bar 5 and drop into engagement there'- 70 with, as shown in Fig. 1. Pivotally hung v upon the reinforcements 9 above the draft bars 10 are suspension rods 13 which pass through the draft bars and are equipped with wing nuts 14 below the bars adapted to bear against the under sides thereof and thereby support the bars against dropping. Springs 15 are arranged around these suspension rods between the draft bars and the respective reinforcements 9 so that, while the draft bars mayA yield to ride over the cross bar 5, they will be held downwardly to and in engagement with the 'said bar when the apparatus is in use. To effect release of the draft bars, a rock shaft 16 is mounted in the braces 6 and is equipped with a depending crank arm 17 having its lower end disposed to engage below the draft hooks, 'as mdicated 'at 18. A similar crank arm 194 rises from vthe rock shaft and` is pivoted to an operating rod 20 which extends forwardly to a point near the operators seat of the truck Where it ,may be equipped with a lever or other manipulating device. If 'the crank 17 be swung upwardly and 95. rearwardl the hooksll will be lifted from the cross ar 5 so that the truck may then be driven forward away from the hopper.

The hopper is supported by rollers 21 mounted upon a shaft 22 which is journaled 100 in\beariiigs 23, the bearings being in turn bolted -to blocks 24 which are secured to the outer reinforcements 9 upon the front wall of the hopper. The blocks 24 may be of any convenient form which will permit of the provision of a plurality ofopenings through the lower front wall of the same to receive the v bolts 25 which secure the bearings 23 thereto, and it will be .understood that by engaging the bolts through selected openings the rollers may be set atL a relatively higher or lower `point of the hopper so that the bottom of the hopper will be disposed at a greater or less height above the ground surface and the depth of the spread may be thereby regulated approxi-- the ground and furnish additional supports for the hopper. The brackets 27 are adjustable upon the reinforcements 26 in sublstantially the same manner as therollers 21 are adjusted so as to provide for an approximate regulation of the depth of the spread,

u and it will be'noted that the shoes extend rearwardly beyond the lower edge of the front wall 8, thereby imparting additional stability to the device and guarding against ,tipping backwardly of the same. The'rollers 21 are intended to run in paths at the inner sides of the truck wheelsv 29 whilethe shoes 28 are intended to run in paths following the outer sides of the truck wheels, thereby tending to obliterate any ruts which might be formed in the sub-grade of the road by the truck wheels and contributing to an even deposit of the road material. The end walls 30 of the hopper are disposed vertically in their upper portions and in their lower portions are 4inclined inwardly and downwardly, as shown at 31, the lower suitable dimensions shdably supported by the extremities of the end walls immediately at the rear of the front wall having end discharge openings 32 formed therethrough.

AThe upper and rear edges of the end walls are reinforced by angle bars or strap bars` 32 and a flange 33 is also secured upon the outer side^of an end wall to extend down to the lower edge of the front wall. Upon the cleats 34 which receive the-,si e-edges of an` end gate 35 consisting of a plate of metal of fore, set to entirel cover the respective openings 32 or parta or entirely uncover the same and they are leld in their set positions by set bolts 37 mounted in the cleats and adapted to bear against the gates at the edges of the same, aswill be understood.

The back wall 38 of the hopper has its lower edge disposed at a higher elevation than the lower edge of the front wall and its flange 33 is a laterally projecting guard plateY 40 having its outer edge portion doubled on itself and. turned rearwardly, as indicated at 41, while an angle bar 42 is secured to the reinforcement 32 and to the back wall to cooperate with the plate 41 in supporting a platform 43 uponwhich an operator may stand. A cross bar 44 is secured to and extends between the

elements

41 and 42 and the inneredge of the platform is formed with a hook 45 which is adapted to enga e over said cross bar, as shown most clear yin Fig. 6. .The'outer end of theplatform is pivoted to and dis osed between hangers 46 which are pivote at their upper ends upon the flange 32 and the ,gutstanding flange of the rear portion of the reinforcement 32. If the platforms are not to be used, they may be disengaged from the cross bar 44 and then swung about their pivotal connections` with the hangers to fold between the latter after which the hangers and the platforms maybe swung` toward the end walls of the hopper to be carried in a vertical position thereby out ofthe way. This disposition'of the platforms will be advantageous when the ho per is to be transported over a. roadA wit out spreading material or is to be stored or moved through narrow passageways. It is also to be noted that the lower ends of the hangers 46 are provided with longitudinal through any one of the openings 48 in the outer side of each end wall atopposite Vsides jelements41and 42, as will be understood'. of the openings 32therethrou h are secured When the gates 35 are in their lowest posil tions, as shown in Fig. 4,*the material will be laid i-n the narrowest spread Afor which the machine is adapted and inasmuch as this said cleats, and reinforcing bars or ribs 36 are' 'spread "is obviously considerably less than' rovided uponthe outersides of the gate. he gates are .obviously adjustable vertically relative to the cleats 34 and maybe, there e width of the hopper the arrangement adapts the device particu arly for use upon Y*narrow roads. It' the Aend 'gates raised `meet the requirements of all more or less, the spread will be correspondmgly increased, and it may be further regulated by the employment of an element 49 which' I call a fence and which consists of a plate having its upper edge in angular relation .to its main portion so that it may be secured to the lower edge of the gate, as shown in Fig. 6, the material passing through the discharge opening 32 impinging against the fence and being thereby restricted in its spread so that it will drop to the road surfaceJ to cover the same to the desired width. The fence is detachably secured to the gate and it may be secured to the cross' bar 44, as shown in Fig. 4, to extend inward-` ly from said bar, as shown in full lines, or reversed so as to extend Aoutwardly from said bar, as indicated by the dotted lines thereby adapting the machine to spread greater widths of material than when it .is in the previously described positions, the several adjustments indicated being suicient' to present standard road constructions.

Slidably mounted upon the back wall of the hopper is a back gate 50 which consists of a metallic plate having reinforcing angle bars 51 secured upon its buter side along its upper and lower edges and having end reinforcements or wings 52 secured to its ends, the forward edges of these wings or end reinforcements being extended forward- 1y and then projecting inwardly to provide retaining anges 53 enga g the front sides of the elements 42 so t at the back gate will be enabled to withstand the thrust put' upon the same by the outflowing material. It may also be noted that across the lower portion of the back wall is secured a reinforcing angle bar 54 which strengthens the back wall and also serves as a stop to limit the upward adjustment of the back gate. In the upper reinforcement V51 of the gate adjacent the ends thereof, lare firmly secured eyes or hooks 55 in which are engaged the lower `ends of hangers56 which at their upper ends have threaded engagement with angle levers 57 fulcrumed at their angles upon the rear wall ofthe hopper adjacent the upper corners of the same. The hangers 56 are threaded atv their ends into eyes 58.

whereby the effective length thereof may be' varied and the gate set at an inclination transversely of the hopper when desired in order that a crown may be formed on the road. The inner arms of the angle levers 57 extend downwardly and are pivoted at their lowerv ends to the outer ends of links 59 which extend inwardly and are pivoted at 'their inner ends to the o posite ends of an intermediate'lever 60 crumed at its center upon tthe rear wall of the hopper, vas indicated at 61. Extending from the lever 60,

at the center of the same -is a -handle 62 equipped with a latch 63 adapted toengage a holding rack 64 secured upon the hopper so that the lever may be held in a set position. By, properly rocking the hand lever, the back gate may be adjusted to project more or less below the lower edge of the rear vwall of the hopper and thereby control acphalt which, as is well known, tends to cake but may be kept in proper pulverized con' dition by workmen standing upon the platforms 43 and equipped with hand rakes or similar implements which they may manipulate over the surface of the load and thereby maintain the same in the proper condition for ready discharge.

Should the asphalt show a tendency to stick and clog at'the bottom of the hopper, the agitatorshown in Figs.` 7, 8 and 9 may be employed. In applying the agitator, a substantially U-shaped hanger 65 is provided at each end of the hopper and secured to the

supports

41 and 42 thereat, the base of the hanger providin bearings for the ends of the agitator sha t 66 which is preferably hollow and has Aan outer tubey 67 shrunk or otherwise rigidly secured thereon. Formed upon the outer tube is a spiral rib 68 having right and left hand pitches; each pitch extending from the center of the tube to one end thereof and being so' disposed as to feed the material toward the ends of the hopper and also crowd it toward the back discharge opening, as will be understood on reference to Fig. 7. On each end of the shaft'is secured a pinion 69 which meshes with a pinion 70 on a stub shaft 71 carried by a bearing bracket-72 on the adjacent end of the hopper. The bracket 72 -is of arcuate formation having a slot 73 through which a securing bolt 74 is inserted into the hanger 65, this arrangement permitting the bracket to be adjusted concentrically with the agitator shaft and the pinion 69. On the outer end of the stub shaft 71 is secured a sprocket 7 5 and a cham 76 is trained about said sprocket and a sprocket 77 secured upon an extension of the axle 22, whereby the agitator shaft w1ll be rotated from the axle. It will be readily noted that the adjustment-of t-he` bearing' bracket 72 will keep the chain 76 taut while.

Vin allposit-ions, the pinions 69 and 70` will be in mesh. It will be understood that, when theagitator'is employed, the fences and platforms may be omitted and the end gates will be raised to clear the agitator.-

It is to be particularly noted that the hopper is not a part of the vehicle which transports the road material but is detachably coupled thereto and its width should be at least equal to the extreme width ofthe path defined by the vehicle wheels, and, preferably exceeds such width, so that the material will truck may be loaded and brought into position to be immediately coupled to the hopper when the load of the first truck has been completely discharged and said truck released from the hopper.

vHaving-thus described the invention, I claim:

1. An apparatus -for spreading road material comprising a hopper having its bottom portion and its rear wall constructed to admit f ree discharge of road material de-4 posited therein, means on the front wall of the hopper for -supporting the same for travel at the rear of a vehicle, and rigidv draft bars pivoted to the front wall of the hopper and extending forwardly therefrom to engage with the frame of a vehicle forl coupling the hopper thereto.

. 2. An apparatus for spreading road material comprising a hopper constructed to permit free iiowl of material through its bottom and rear portion, means on the front of the hopper for supporting the same for travel o ver a road surface, and draft bars pivoted to the front of the hopper and extending forwardly therefrom and having their front ends formed into hooks adapted to ride overand engage portions of the frame of a vehicle for coupling the hopper thereto'.

3. An apparatus for spreading roadmate- I' rial comprising a hopper constructed to permit free flow of material through its bottom and rear portion, means on the front wall of the hopper supporting the same for travel over a road surface, draft bars pivoted to the front wall of the hopper and projecting forwardly therefrom, thefront ends of sai draft bars being formed into hooks having beveled front ends whereby .they may ride over and drop into engagement with a cross bar on a vehicle to couple the hopper to the vehicle, suspension rods mounted on the front wall -of the hopper above the draft bars and supporting said bars, yieldable means co-operating with the suspension rods to hold the draft bars in their lowered operative position, and means operable from the front of a vehicle to release the draft Joars therefrom. Y

4. An apparatus for spreading road material comprising a hopper having a downwardly land rearwardly inclined front wall and having its bottom and its rear wall constructed tov permit free discharge of lnaterial deposited in the hopper, brackets secured upon the front wall of the hopper adjacent the ends thereof and vertically adjustable thereon, shoes carried by said brackets to run upon a road surface, bearings also secured upon the front wall ofthe hopper and adjustable vertically thereon, and ,rollers carried by said bearings at the inner sides of the shoes.

An apparatus for spreading road material comprising a hopper having a downwardly and rearwardlylinclined front wall and having end walls, the lower portions of which converge downwardly and meet the front wall at the ends thereof, said end walls having discharge openings therethrough, and gates slidably mounted on the end walls to cover or uncover said openings'.

6. Apparatus for spreading road material comprising a hopper having a downwardly and rearwardly inclined front wall and end walls meeting the front wall and provided with discharge openings through their rear portions, gates slidably mounted on the end walls to cover or uncover said openings, a fence, and means whereby the fencemay be supported at the outer sides of the gates tore late the spreadA 7. Apparatus or spreading road materialj comprising a hopper having .a downwardly and rearwardly inclined front wall and having end wallsmeetin'g the front wall,"

the end walls being provided with discharge openings through their lower portions, gates supported on thev end walls and adjustable to cover or` uncover said discharge openings, fences, and means for supporting the fences upon the ends of the hopper at the respec tive gates or spaced there rom.

8. Apparatusffor spreading road material comprising a hopper having a downwardly and rearwardly inclined front wall, end walls meeting the front wall and having 'discharge openings through their rear portions, means for controlling flow through said openings, 'and fences supportable fat the outer sides of said openings and consisting of plates having their attaching edges in angular relation to their main portions.

9. Apparatus for spreading road 4mafA terial comprising a hopper having its bottom and rear portions "constructed to permit free liow of material,4 platforms, and adjustable and detachable means for supporting the platforms on the ends ofthe hopper. s

10. Apparatus for spreading road material comprising a hopper constructed to per-v the hopper extending from end toend theremit free discharge of material through its of, ground rollers on the front wall of the bottom and its rear wall, cross bars on the hopper, and'gearing connecting the agitaends of the hopper, platforms constructed tor with said rollers.

at their vinner ends to detachably engage the respective vcross bars, and hangers attached to theends of the hopper above the platforms'and having their lower ends attached to the outer edges of the platforms.

l1. Apparatus for spreading road material comprising a hopper having its rear wall constructed to permit free discharge of material deposited in the hopper, a back gate slidably mounted upon the rear wall of the hopper and held thereto,x extensible hangers attached to the back gate adjacentthe ends thereof, angle levers mounted upon the rear wall of thethopper and having outwardly extending arms pivoted to the upper ends of the hangers and having their inner arms extending downwardly, links pivoted to the lower ends of said arms and extending inwardly therefrom, and an operating leverfulcrumed upon the rear wall of the hiflilper and pivoted to the innerl ends of said 12. Apparatus for spreading road material comprising an open-bottom hopper having a downwardly and rearwardly inclined `lfront wall, means on said wall to support the hopper for travel at the rear of a dumping vehicle, means carried b said wall to the hopper and having a spiral rib extending from end to end of the hopper and having its pitch relatively reversed in its opposite rend portions.

14:. Apparatus for spreading road material comprising an open-bottom hopper having a downwardly and rearwardly inclined front wall, means on said wall to support the hopper for travel at the rear of a dumping vehicle, means carried by said wall to couple the hopper to a vehicle,

anl agitator mounted at the bottom of the hopper, and means on the ends of the hopper driven by said supporting means for actuating the agitator.

15. Apparatus for spreading road ma- 4terial comprising an open-bottom hopper having a downwardly and rearwardly finclined front wall, means carried by said I -wall to couple the hopper to a dumping` vehicle, a rotatable agitator at `the bottom of In testimony whereof I affix my signature.

CHARLES G; [1.. 5.]

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