Excavating – Ditcher – Wheel excavator
Patent
1989-01-19
1990-01-30
Johnson, Richard J.
Excavating
Ditcher
Wheel excavator
172439, 172574, A01B 1302, E02F 502
Patent
active
048964433
ABSTRACT:
A ditch forming apparatus includes a pair of discs rotationally mounted in a back-to-back arrangement to a support frame with their respective convex surfaces in facing relation and their concave surfaces directed outwardly. The discs are oriented in an angled manner relative to the direction of displacement of the support frame such that the leading edges of the discs overlap along the displacement direction, with one disc positioned aft of and lower, or deeper in the soil, than the other disc to compensate for the increased drag imposed on the forward disc in providing straight tracking for the apparatus through the soil. Drag compensation may also be provided by orienting the aft disc at a greater angle relative to the direction of displacement of the apparatus than the forward disc. The ditch forming apparatus is adapted for coupling to and being drawn by a traction vehicle and is adjustable for controlling the depth and width of the ditch, has a minimum number of moving parts, and distributes the soil evenly to both sides of the ditch.
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Brochure entitled "Glencoe Welcomes the Power Ditchers," from Portable Elevator Division, Dynamics Corporation of America, Bloomington, Ill. 61702, believed to have been published in Oct. 1986.
Klingler David
Klingler Kenneth
Klingler Paul
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