Machine for applying a uniform pressure

Details Machine for applying a uniform pressure Machine for applying a uniform pressure

1978-12-15

1980-03-11

Byers, Jr., Nile C.

Road structure, process, or apparatus

Apparatus

Rotating drum, roller or tire

172551, 180 19S, 301132, 280112A, 280696, 280701, E01C 1926

Patent

active

041926269

ABSTRACT:
A machine for uniformly applying a pressure on a relatively flat surface includes a portable frame structure and at least one frame supporting roller rotatably mounted on an axle by a pair of spaced journal assemblies. Each journal assembly has an upright bracket member with a top end secured to the underside of the frame structure, and an upright guideway in which the body portion of a bearing member, for rotatably supporting one end of the roller axle, is guidably movable. Flanges laterally extended from opposite sides of each bearing body portion are positioned between an associated bracket member and adjacent side of the roller. Each flange is formed with a fulcrum portion that is in contact engagement with the adjacent side surface of an associated bracket member for pivotal movement of the bearing member in response to a lateral tilting movement of the roller. Coil springs normally oppose upward movement of the bearing members, but are compressible upon pivotal movement of the bearing members to insure maximum surface contact between the roller and the flat surface when a surface irregularity is encountered by the rollers.

REFERENCES:
patent: 53848 (1866-04-01), McClure
patent: 386220 (1888-07-01), Riebold
patent: 539615 (1895-05-01), Figge
patent: 639829 (1899-12-01), Schaffer
patent: 718870 (1903-01-01), Packer
patent: 976293 (1910-11-01), Reiff
patent: 2382986 (1945-08-01), Ganley
patent: 2751959 (1956-06-01), Blomquist
patent: 2805868 (1957-09-01), Madden
patent: 3422735 (1969-01-01), Vitry

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