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Publication numberUS2600588 A
Publication typeGrant
Publication dateJun 17, 1952
Filing dateJul 8, 1949
Priority dateJul 8, 1949
Publication numberUS 2600588 A, US 2600588A, US-A-2600588, US2600588 A, US2600588A
InventorsStodolka Cyril L, Stodolka James P
Original AssigneeStodolka Cyril L, Stodolka James P
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Aggregate receiving and conveying machine
US 2600588 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

J1me 2 c. L. STODOLKA ETAL 2,600,583

AGGREGATE RECEIVING AND CONVEYING MACHINE Filed my a, 1949 2 SHEETS-SI-IEET 1 IN VEN TORS CYlzn. LJSTODOLKAg JAMES RSTonoLKn Iwoeusw Ju 1952 c. STODOLKA ETAL 2,500,538

AGGREGATE RECEIVING AND CONVEYING MACHINE 2 SHEETS-SHEET 2 Filed July 8, 1949 Patented June 17, 1952 AGGREGATE RECEIVING AND CONVEYING MACHINE Cyril L. Stodolka and James P. Stodolka, Little Falls, Minn.

Application July 8, 1949, Serial No. 103,713

3 Claims. 1

This invention relates to machines for spreading or distributing materials over the surface of roads, and more particularly to a machine adapted for use in spreading or scattering fine aggregate material over road surfaces after they have been oiled or otherwise suitably prepared.

A main object of the invention is to provide a novel and improved self-propelled aggregate-receiving and conveying machine for spreading or distributing materials over road surfaces, said machine being relatively simple in construction, easy to control, and arranged so that the operator has a clear view of operations near the machine at all times, making it possible for him to accurately steer the machine along a desired course.

A further object of the invention is to provide an improved aggregate spreading machine wherein the operator has complete control of the conveying and distributing portion of the machine at all times, and in a position to supply the distributing portion with as much aggregate as is required for the operation being performed, the machine enabling a road surface to be sanded or covered with fine aggregate with a minimum amount of labor on the part of the operator, and requiring no special skill on the part of the drivers of the dump trucks which supply the machine with aggregate material to be spread.

A still further object of the invention is to provide an improved self-propelled aggregateconveying and spreading machine which is easily steerable, which provides a high degree of visibility for the operator during the sanding or aggregate-spreading process, making it possible to operate the machine at close quarters, and which may be loaded by the use of conventional dump trucks or other loading equipment.

Further objects and advantages of the invention will become apparent from the following description and claims, and from the accompanying drawings, wherein:

Figure l is a side elevational view of a selfpropelled, aggregate-receiving and conveying machine constructed in'accordance with the present invention;

Figure 2 is a fragmentary top plan view of the machine illustrated in Figure 1;

Figure 3 is a side elevational view of the machine of Figure 1 taken from the side opposite to that on which Figure 1 is taken;

Figure 4 is front end elevational view of the machine of Figure 1;

Figure 5 is a cross-sectional view taken on lin 5-5 of Figure 2.

Referring to the drawings, the machine comprises a frame or chassis I] provided with the ground-engaging front wheels I 2 and rear wheels l3, the rear wheels being driven in a conventional manner from a motor [4 carried on the chassis, and the front wheels I2 being steered by a conventional steering mechanism controlled by a steering wheel I5 located forwardly adjacent the operators seat, shown at H5. The driving mechanism for the rear wheels l3 includesv a conventional transmission I 1 having an operating lever I8 controlled through a suitable linkage by a hand lever l9.

Positioned longitudinally of and upon the chassis II and fixedly secured thereto is a frame 20, the frame being arranged at an angle with respect to the chassis and having its lower end projecting from and terminating at a point spaced below the forward end of the chassis and having its upper end contiguous to and spaced above the rear end of the chassis. A hopper 2| for containing aggregate is superimposed upon and spaced from the portion of the frame 20 adjacent the projecting end thereof and is fixedly secured to the frame, the hopper including a floor a and upstanding front and rear walls 260, 26 respectively, arranged in converging spaced relation and attached to the floor 25a. The floor 25a has an opening 25 intermediate its sides which extends longitudinally inwardly from the end of the floor adjacent the rear wall 26 to and terminates in the end of the floor adjacent the front wall 26a, the opening being for the discharge of the aggregate therethrough. In the rear wall 26 intermediate its sides there is an opening 28 which extends from a point adjacent the top to the bottom and merges into the opening 25. A gate 21 bridges the opening 28 and is connected to the rear wall 26 for up and down movement with respect to the floor 25a. The gate 21 may be held in an adjusted open position, as by a bolt member 29 extending through the upper portion of gate 2'! and engaging the top edge of wall 26, as shown in Figure 5.

Designated at 30 is an endless conveyor belt supported at its intermediate portions on spaced sets of transverse rollers 3| rotatably carriedby frame 20. Rotatably mounted on the ends of frame 20 are the respective transverse shafts 32 and 33 carrying the respective drums 34 and 35 over which the belt 30 passes. Shaft 32 is coupled to the worm conveyor shaft 22 by a shaft element 39 connected at one end to conveyor shaft 32 by a universal joint 40 and connected at its other end by a universal joint 4| through a coupling device 36 to the shaft 22. Said coupling device provides a speed reduction of shaft 22 with respect to shaft 32, and may comprise, for example, a small sprocket carried by shaft 32 coupled by a sprocket chain to a large sprocket carried by shaft element 39. Accordingly the belt will be driven at a speed in excess of the speed of the shaft 22 of the helical worms 23, 24 to prevent accumulation of the'aggregate on the belt 30. The coupling mechanism is arranged so that clockwise rotation of shaft 32, as viewed in Figure 5, produces counterclockwise rotation of shaft 22, whereby material will be moved from the side portions of hopper 2| toward the discharge opening 25. It is to be noted that the conveyor belt 30 includes top and lower flights with the top flight directly below and forming a movable floor for the opening 25, whereby the material will be deposited on the belt and will be moved thereby out of the hopper through the rear wall opening 28 thereof.

' Secured to the side of frame 20 adjacent the drivers seat it is a vertical longitudinal shield plate 31 protecting the driver against injury from stray fragments of the material carried on the Rotatably mounted on chassis H adjacent frame 20 is a longitudinal shaft 38 connected through a conventional speed-changing transmission unit 42 and a universal joint 43 to a shaft element 44. 'Shaftelement 44 is coupled through a suitable speed-reducing unit 45 to the belt conveyor drive shaft 33. Designated at 46 is the driving portion of a conventional clutch rotatively mounted with respect to shaft 38 and coupled to the crankshaft of engine 14 by V-belts 41. Splined on shaft 38 is the driven portion 48 of the clutch. Any suitable control linkage may be employed to engage driven clutch portion 48 with driving clutch portion 48, as for example, a collar '49 rotatably and slidably mounted on shaft 33 having links connected to a ring bearing axially on the driven portion 48. Collar 49 is connected to an arm 50 carried by a transverse shaft 5! rotatably mounted in frame 25. On the opposite side of frame 20, shaft 5| carries an upstanding arm 52 connected by alink bar 53 to a hand lever 54 which is pivotally connected intermediate its ends to the plate member 31, as indicated at 10, and has its lower end pivotally connected to the adjacentend of the link bar 53. The driven portion 48 of the clutch may be engaged or disengaged from the driving clutch portion 45 by means of the hand lever 54. When driven portion 46 is engaged with driving portion 46, shaft 33 is rotated, causing the belt conveyor to move and at a the same time causing the auger shaft 22 to be material deposited thereon outwardly from the center portion of the spreader. Said auger elements are carried on atransverse shaft 59' coupled bysprockets and a sprocket chain 60 to the shaft ofthe ground-engaging wheels 6| of the spreader, sothatthe auger shaft 59 is rotated automatically as the wheels El roll on the ground. The rate of discharge of spreader 5G is regulated by means of a hand lever 62 linked to the discharge gate of the spreader.

Since the device is self propelled, it is merely necessary to load the hopper 2| with the desired aggregate material, by ordinary dump trucks or the like, and thereafter the operator of the device may steer the device along the desired course upon which the material is to be spread. By engaging the clutch elements 45 and 48 by means of lever 54, the operator may initiate the operation of the conveyor belt 30 and cause the material to be moved into chute 55 and thence by gravity into the spreader 56. The various components of the machine are at all times in full t view of the operator, and the road or other surface to be covered is likewise always within view of the operator. Therefore, the machine may be accurately steered over the oiled road surface or other surface being treated without requiring an additional operator to guide the machine. Corners or turns may be readily negotiated due to the steer-ability of the machine. The spreader device 56 may be readily unhitched and replaced in the event of breakdown. Due to the high visibility from the operators seat, the machine may be closely controlled, making it possible to 'operate same in restricted locations.

Although a specific embodiment of a self-propelled, aggregate-spreading machine has been disclosed in the foregoing description, it will be understood that various modifications within the spirit of the invention may occur to those skilled in the art. Therefore, it is intended that no limitations be placed on the invention except as defined by the scope of the appended claims.

What is claimed is:

1. In an aggregate receiving and conveying machine, a mobile chassis adapted to traverse a road to be surfaced, a frame positioned longitudinally of and upon said chassis and fixedly secured to the latter, said frame being arranged at an angle with respect to said chassis and having its lower end projecting from and terminating at a point spaced below the forward end of said chassis and having its upper end contiguous to and spaced above the rear end of said chassis, a hopper superimposed upon and spaced from the portion of said frame adjacent the projecting end thereof and fixedly secured to said frame for containing aggregate, said hopper including a fioor and up standing front and rear walls arranged in converging spaced relation and attached to said floor, there being an opening in said floor intermediate its sides and extending longitudinally inwardly from the end of said floor adjacent said rear wall to and terminating in the end of said floor adjacent said front wall for the discharge of aggregate therethrough, an endless conveyor including top and lower flights extending longitudinally of and rotatably supported in said frame and having the top flight directly below and forming a movable floor for said opening, said rear wall having an opening intermediate its sides and extending from a point adjacent the top to the bottom and merging into said first named opening, a gate bridging said rear wall opening and connected to said rear wall for up and down movement with respect to said floor, rotatable opposed screws in said hopper arranged in parallel relation with respect to said front wall and contiguous to said floor for feeding the aggregate into said first named opening, a chute positioned below the upper end of said frame and fixedly secured to said chassis for the reception of the conveyed aggregate, and drive means operatively connected to the said conveyor and said opposed screws for effecting the rotary movements of said conveyor and said opposed screws.

2. In an aggregate receiving and conveying machine, a mobile chassis adapted to traverse a road to be surfaced, a frame positioned longitudinally of and upon said chassis and fixedly secured to the latter, said frame being arranged at an angle with respect to said chassis and having its lower end projecting from and terminating at a point spaced below the forward end of said chassis and having its upper end contiguous to and spaced above the rear end of said chassis, a hopper superimposed upon and spaced from the portion of said frame adjacent the projecting end thereof and fixedly secured to said frame for containing aggregate, said hopper including a floor and upstanding front and rear walls arranged in converging spaced relation and attached to said floor, there being an opening in said floor intermediate its sides and extending longitudinally inwardly from the end of said fioor adjacent said rear wall to and terminating in the end of said fioor adjacent said front wall for the discharge of aggregate therethrough, an endless conveyor including top and lower flights extending longitudinally of and rotatably supported on said frame and having the top flight directly below and forming a movable fioor for said opening, said rear wall having an opening intermediate its sides and extending from a point adjacent the top to the bottom and merging into said first named opening, a gate bridging said rear wall opening and connected to said rear wall for up and down movement with respect to said floor, a bolt extending through and supported in said gate adjacent the upper end and engageable with the top of said rear wall for holding said gate in the up movement position, rotatable opposed screws in said hopper arranged in parallel relation with respect to said front wall contiguous tosaid floor for feeding the aggregate into said first named opening, a chute positioned below the upper end of said frame and fixedly secured to said chassis for the reception of the conveyed aggregate, and drive means operatively connected to said conveyor and said opposed screws for effecting the rotary movements of said conveyor and said opposed screws.

3. In an aggregate receiving and conveying machine, a. mobile chassis adapted to traverse a road to be surfaced, a frame positioned longitudinally of and upon said chassis and fixedly secured to 6 the latter, said frame being arranged at an angle with respect to said chassis and having its lower end projecting from and terminating at a point spaced below the forward end of said chassis and having its upper end contiguous to and spaced above the rear end of said chassis, a hopper superimposed upon and spaced from the portion of said frame adjacent the projecting end thereof and fixedly secured to said frame for containing aggregate, said hopper including a fioor and upstanding front and rear walls arranged in converging spaced relation and attached to said floor, there being an opening in said floor intermediate its sides and extending longitudinally inwardly from the end of said floor adjacent said rear wall to and terminating in the end of said floor adjacent said front wall for the discharge of aggregate therethrough, an endless conveyor including top and lower flights extending longitudinally of and rotatably supported in said frame and having the top flight directly below and forming a movable floor for said opening, said rear wall having an opening intermediate its sides and extending from a point adjacent the top to the bottom and merging into said first named opening, rotatable opposed screws in said hopper arranged in parallel relation with respect to said front wall and contiguous to said floor for feeding the aggregate into said first named opening, a chute positioned below the upper end of said frame and fixedly secured to said chassis for the reception of the conveyed aggregate, and drive means operatively connected to said conveyor and said opposed screws for efiecting the rotary movements of said conveyor and said screws.

CYRIL L. STODOLKA.

JAMES P. STODOLKA.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,375,080 Chappel Apr. 19, 1921 1,764,019 Hardenbergh June 17, 1930 1,924,825 Young Aug. 29, 1933 2,332,688 Baily Oct. 26, 1943 2,456,237 Acton Dec. 14, 1948 FOREIGN PATENTS Number Country Date 794,875 France Feb. 27, 1936

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1375080 *Nov 14, 1918Apr 19, 1921Chappell Howard FDrying finely-divided materials
US1764019 *Jul 28, 1928Jun 17, 1930Watson Hardenbergh NathanMachine for spreading road materials
US1924825 *Aug 4, 1932Aug 29, 1933Young Lewis MSand spreader
US2332688 *Aug 11, 1941Oct 26, 1943Baily Robert WApparatus for making concrete roadways
US2456237 *Feb 19, 1945Dec 14, 1948Int Harvester CoTractor mounted implement
FR794875A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2896770 *Feb 8, 1957Jul 28, 1959Ross Ruben BoliverPortable concrete batch plant
US3016809 *Nov 29, 1956Jan 16, 1962Mcneill Richard LPaving machine
US3330188 *Dec 31, 1964Jul 11, 1967Layton Mfg CoRoad widener
US3385476 *Jul 13, 1966May 28, 1968William L. YoungApparatus for delivering ready for mixing proportioned ingredients of concrete
US4117920 *Mar 2, 1977Oct 3, 1978Rotec IndustriesAuger hopper
Classifications
U.S. Classification198/311, 198/314, 116/28.00R, 404/110
International ClassificationE01C19/20, E01C19/00
Cooperative ClassificationE01C19/202, E01C2019/2075, E01C2019/209
European ClassificationE01C19/20C3