Dresser Industries, Inc.

Wesley Irving Crabiel

Lawrence E Barbera

Motor grader vehicle

The invention concerns a vehicle of the type comprising a mobile carrier, a pedestal mounted thereon for rotation about a vertical axis, and a swivel joint connected between the pedestal and the carrier and through which energy is transmitted. The swivel joint comprises a stationary sleeve mounted on the carrier along the vertical axis and a rotary sleeve mounted coaxially around the exterior of the stationary sleeve. The stationary sleeve includes a plurality of passages extending parallel to the axis for transmitting pressurized fluid. The rotary sleeve includes a plurality of fluid ports. The stationary sleeve includes an annular channel, for each passage, communicating the fluid port with the passage during rotation of the pedestal. An upper gear box is mounted at an upper end of the rotary sleeve for rotation therewith, and a lower gear box is mounted at a lower end of the stationary sleeve. A hollow vertical shaft extends coaxially through the stationary and rotary sleeves for transmitting mechanical energy. Upper gears in the upper gear box connect the shaft to a rotary mechanism on the pedestal. Lower gears in the lower gear box connect the shaft to a rotary mechanism on the carrier. A tube extends coaxially through the vertical shaft for receiving a plurality of electrical conductors which conduct electrical energy between the pedestal and carrier.

Swivel joint for a vehicle

The invention is an improved rotary cutter for a road planer, particularly a cold planer. The rotary cutter comprises a thick-walled metal drum fitted with improved cutter bits and bit holders, according to a pre-selected pattern. The holders are attached on the drum surface, and each has a tapered socket extending through the main body thereof along a line parallel to the tangent of the drum surface. The corresponding cutter bit has a shoulderless, tapered shank which fits in and is seated snugly in the socket of the holder and a cutting tip lying in a plane generally radial of the drum. The cutting action maintains the firm, tight fit of the cutter bits in the holders and reduces the excessive wear experienced in prior cutters. The invention provides a rotary cutter which is less expensive to make, is more effective in cutting modern paving materials, and which has a longer life span.

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Galion, OH, United States of America

Wesley Irving Crabiel