US2024184A - Roller for oil mix roads - Google Patents

Description

Dec. 17, 1935.

J. R. RlTCHlE ROLLER FOR OIL MIX ROADS Filed Aug. 2, 1933 Patented Dec. 17, 1935 UNITED STATES PATENT oFFicE 10 Claims.

This invention relates to a machine for operating on roads and properly preparing the surfaces thereof. A great many roads now have their surfaces made of gravel or similar material which is mixed with oil. Different kinds of oil are used on the roads, some of the oil being mixed with bitumin, tar, asphalt or similar substances. Difculty has been experienced in properly finishing the surfaces of such roads. The mixed gravel and oil is spread out on the roads and must then be packed to a certain extent. The material does not roll down well with a roller having a hard or steel surface as the oil sticks badly to the surface of the roller. It has been found that the ordinary traiiic of vehicles when conned to slow speeds has heretofore rolled the surface into the best condition.

It is an object of this invention to provide a simple and efficient device for effectively rolling the surface of such a road.

It is a further object of the invention to provide a device for rolling a road surfaced with mixed gravel and oil or similar mixture which comprises a series of wheels arranged side by side, the same having resilient or rather large pneumatic tires thereon, said device preferably having a second series of wheels adapted to follow the first mentioned wheels and which are arranged to aline longitudinally with the spaces between said first mentioned wheels.

It is still another object of the invention to provide such a device as above set forth in which the wheels have independent rotary movement so as to\have a differential action when the device is making curves.

It is more specifically an object of the invention vto provide a device having a body adapted to be loaded to secure the desired weight, which body is supported on front and rear axles, each axle having a plurality of spaced wheels rotable thereon, the wheels being equipped with rather large pneumatic tires and being laterally spaced from each other on the respective axles, the wheels on one axle being longitudinally alined with the spaces between the wheels on said other axle. The front axle is preferably swingable relatively to said body about a vertical axis.

These and other objects and advantages of the invention will be fully set forth in the following description made in connection with the accompanying drawing, in which like reference characters refer to similar parts throughout the several views and in which:-

Fig. 1 is a plan view of the device; v

Fig. 2 is a view in rear elevation as seen from line 2-2 of Fig. 1 looking in the direction of the arrows;

Fig. 3 is a view in front elevation as seen from the right of Fig. 1;

Fig. 4 is a partial section taken on line of Fig. 1 as indicated by the arrows; and

Fig. 5 is a partial view in side elevation.

Referring to the drawing, a device is shown comprising a body member I0. While this member could take various forms, in the embodiment 10 of the invention illustrated, it is shown as having a substantially at top and as being formed from a pair of spaced I-beams Illa which extend longitudinally of said body, another I-beam IIlb extending at right angles to and between I-beams 15 Illa adjacent the rear thereof and a pair of spaced channel members I0c extending at right angles to and between I-beams Illa and having their channelsl facing each other. A pair of channels Illd also form the sides of said body be- 20 ing spaced outwardly from and parallel to I-beams Illa and having their channels directed inwardly and a pair of channel members Ille form the ends of said body extending between and connected to the channels Id at right 25 angles thereto and being welded to the ends of I-beams I 0a. A pair of bars Illf extend diagonally between I-beams Illa and from points thereon adjacent I-beam Ib and the adjacent channel I0c, bars If being preferably secured to the lower flange of I-beams Illa in any suitable manner as by being Welded thereto. The body I0, as described, thus constitutes a rigid frame rectangular in plan. A plate II extends between and is secured to the lower flanges of 35 channels I0c having a downwardly directed boss which rests on an upwardly directed boss formed by a plate I2 secured to a curved yoke I3 formed of a channel member and having downwardly directed arms I3a to the lower ends of which are 40 secured by bolts i4, ball bearings I5. Yoke I3 is connected to frame I0 by a vertical pivot I6 extending through plates Il and I2 and yoke I3. A tongue I'I extends forwardly from yoke I3 and I comprises spaced arms secured at the rear ends 45 to the sides of yoke I3 and converging forwardly, the same being connected. at the forward ends and having a clevis I8 secured to the top thereof by bolts I9. A pair of spaced plates 20 are -secured to-the top of tongue I1 and to the front 50 of yoke I3, which plates have transverse apertures therethrough above tongue I1. An axle 2l extends through bearings I5 having sleeves thereon rotatable in said bearings and a plurality of wheels 22 are mounted on said axle, said 55 wheels being spaced from each other longitudinally oi' said axle and being equipped with rather large pneumatic tires. Arms 23 of box section are secured to body I0 at their upper ends and extend downwardly having secured therein by bolts 24, ball bearings 25 similar to bearings |5. A rear axle 26 extends through between and beyond the bearings 25, said axle having sleeves 21 directly engaging and rotatable in bearings 25. A plurality of wheels 28 are mounted on axle 26 being spaced from each other longitudinally of said axle. Wheels 28 are equipped with rather large pneumatic tires 28a. Each of the wheels 22 and 28 have hubs such as 28h and the end wheels on axles 2| and 26 have said hubs overlapping the reduced portion of a collar 29 pinned or bolted to axle 26 by the headed pi'n or bolt 3U. 'Ihe other end of the wheel hub overlaps the end of sleeve 2l. Each wheel hub is also provided with spaced bushings 3| running on axle 26 and an oil space or reservoir is provided between said bushings to which oil may be supplied through the oil cups 32. Sleeve 21 has a bead or small collar 21a engaging one side of bearing 25 for taking the end thrust on said sleeve. 'Ihe wheel at the inner side of the bearings I5 and 25 also has its hub overlapping the end of the sleeve in said bearings and the inner end of said hub overlaps a short sleeve 33 disposed on axle 26. A short sleeve 34 engages the end of sleeve 33 and spaces the same from a similar sleeve 33 extending toward the next wheel and having its end overlapped by the hub of said wheel. The arrangement of the sleeves and wheels onV axles 2| and 26 is thus the same, rear axle 26 being shown as having ilve wheels mounted thereon while the front axle 2| has four wheels thereon. The number of wheels can, of course, be varied as desired. It will be noted that the wheels on the rear axle are centrally alined longitudinally of the devicewith the spaces between the front wheels respectively. The wheels 22 and 28 are equally spaced on axles 2| and 26 respectively.

In operation, the device is attached to a suitable -traction means by means of clevis I8 so as to be drawn along the road to be packed and surfaced. Considerable weight is placed on the body 0f. as may be suitable for the specific conditions. This weight is usually made up by placing bags of sand on body I0 and piling the same upwardly thereon. In practice the body I0 has also been made of hollow or tank formation and A filled with steel shavings or turnings. When the weight has been placed on the device in suitable amount it is drawn along the road at slow speed and the mixture of gravel and oil is effectively packed and surfaced. It will be noted that the size of the tires and spacing of the wheels is such /that as shown in Fig. 2 over 75 per cent or substantially the entire surface is engaged and packed when the front and rear wheels are drawn thereover. The amount of the surface actually engaged will,.of course, depend on the load which is on the platform I0. 'I'his is illustrated in Figs. 2 and 4. The effect of the device is much the same as trame passing over the road but a better action is had since the packing is uniform and slow and, as stated, the entire surface of a strip is engaged. By drawing the device over the road repeatedly, the material is suitably packed and a smooth surface obtained. It will be seen that the device can be readily drawn and turned as yoke I3 and the front axle swing about the central vertical axis of pin I6. It will also be noted that the wheels have independent rotary movement on the axles. A differential rotation is thus had when the device is making a turn or operating on a curve. The wheels rotate only by friction and a smooth action is thus had with no scuing of the road surface. 'I'he apertured 5 plates 20 are provided so that safety chains may be placed in the apertures thereof when the device is being drawn, which chains will, of course, be connected to the traction vehicle.

From the above description it is seen that ap- 10 plicant has produced a simple and efficient device for packing and properly surfacing roads surfaced with mixed gravel and oil or a similar mixture. The device is simple in construction and easily operated. The same is very ruggedly l5 made and will have small maintenance cost. 'I'he device has been amply demonstrated in actual practice and found to be very successful and ellicient.

It will, of course, be understood that various 20 changes may be made in the form, details, arrangement and proportions of the parts, Without departing from the scope of applicant's invention. which generally stated, consists in a device capable of carrying out the objects above set forth 25 in the parts and combinations of parts disclosed and deilned in the appended claims.

What is claimed is:-

1. A device for rolling 'and packing oil mix roads having in combination, a frame, a pair oi' 30 spaced bearings, sleeves rotatable therein, an axle extending between and through said sleeves, wheels rotatable on said axle having hubs overlapping the outer ends of said sleeves respectively, means holding said wheels from movement out- 35 wardly from said bearings, a plurality of wheels -between said bearings, the wheels adjacent said sleeves having their hubs overlapping the ends of said sleeves respectively, a plurality ot short sleeves between each of said latter wheels. the 40 sleeves adjacent the hubs of said wheels being overlapped by said hubs.'

2. A device of the class described having in combination, a body, a front axle secured to said body, a series of wheels mounted on said axle, 45 said wheels being equipped with tires of yielding resilient material, a rear axle secured to said body, a series of wheels mounted on said rear axle, said latter wheels being equipped with tires of yielding resilient material, said wheels on said 50 front and rear axles being arranged in staggered relation.

3. A device of the class described having in combination, a frame, a front axle mounted on said frame, a series of wheels mounted on said 55 front axle, said wheels being equipped with tires of yielding resilient material, a rear axle mounted on said frame, a series of wheels mounted on said rear axle and equipped with tires of yielding resilient material, said wheels and tires being 60 so spaced and proportioned that substantially the entire area over whichsaid device is drawn is engaged by said tires. l

4. A devi of the class described having in combination, a body adapted to be loaded to be 65 weighted, a front axle secured to said body mounted to swing about a vertical axis. a series oi' wheels spaced laterally from each other mounted on said axle and having tires of yielding resilient material thereo a rear axle secured 70 to said body having a series of wheels thereon spaced laterally from each other having tires of yielding resilient material thereon, said latter wheels being alined longitudinally with the spaces between the wheels on said front axle. 75

5. The structure set forth in claim 4, said wheels on said rear axle having independentl secured in said arms adjacent their lower ends,

an axle mounted in said bearings, a pair of wheels mounted on said axle at the outer sides of said arms respectively, a plurality of wheels mounted on said axle between said bearings, a yoke connected to said body adjacent its forward end and swingable about a vertical axis, said yoke having downwardly extending spaced arms, bearings mounted in said arms adjacent their lower ends. a front axle mounted in said last mentioned bearings, wheels mounted on said front axle at the outer sides of said last mentioned bearings respectively, a plurality of wheels mounted on said front axle between said bearings, all of said,

wheels being equipped with pneumatic tires.

7. The structure set forth in claim 6, said wheels on said rear axle being in staggered relation to said wheels on said front axle and all of said wheels having independent rotating movement on said axles.

8. A device of the class described having in combination, a body adapted to be weighted, spaced bearings carried by said body beneath and adjacent one end thereof, an axle journaled in said bearings, a wheel at each end of said axle at the outer side of said bearings, a plurality of wheels on said axle between said bearings, spaced bearings carried by said body beneath the same and adjacent the other end thereof, a second axle journaled in said latter bearings, a wheel mounted at each end of said second axle at the outer side of said last mentioned bearings, a plurality 5 of wheels on said axle between said last mentioned bearings, all of said wheels being equipped with resilient tires and the wheels on one of said axles being staggered in relation to the wheels on the other axle. l0

9. A device of the class described having in combination, a frame, a pair of spaced bearings, sleeves rotatable therein, an axle extending between and through said sleeves, wheels rotatable on said axle having hubs adjacent the outer ends of said sleeves respectively, means holding said wheels from movement outwardly from said bearings and a plurality of wheels between said bearings.

10. A device for rolling and packing oil mix roads having in combination, a frame, a series of laterally spaced wheels mounted thereon, said wheels having pneumatic tires of relatively large size thereon and a series of wheels spaced longitudinally from said Wheels mounted on said frame and also spaced laterally from each other having pneumatic tires of large size thereon, said latter wheels being disposed in longitudinal alinement with the spaces between said first mentioned wheels, said tires being of such size and said wheels being so spaced that substantially the entire area of the surface traversed is engaged when said front and rear wheels pass thereover.

JOHN R. RITCHIE.

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