Excavating – Ditcher – Wheel excavator
Patent
1977-12-12
1979-12-25
Crowder, Clifford D.
Excavating
Ditcher
Wheel excavator
37189, 37DIG2, E02F 508
Patent
active
041798295
ABSTRACT:
A high speed trenching machine has a rotatable digging unit with a rim assembly symmetrically constructed relative to a flat center ring member and includes an outer peripheral spoil receiving section comprised of a pair of side by side annular channel ways open to opposite sides of the digging unit and formed in the outer peripheral side walls thereof with a series of circumferentially spaced digging teeth arranged in a staggered relation in operative association with respective spoil receiving inlets. The circumferential extent of an inlet is less than the radial dimension of a channel way, the inner peripheral side wall of which is inclined away from the outer peripheral side wall thereof in a direction toward the channel way open side. The inner peripheral channel side wall and a gear segment are of an integral unit construction with the units being identical and secured to opposite sides of the flat center ring member so that the gear segments form a complete ring gear on each side of the rim member inwardly of and within the transverse confines of the spoil receiving section.
REFERENCES:
patent: 357939 (1887-02-01), Plumb
patent: 1064733 (1913-06-01), Horix
patent: 1199366 (1916-09-01), French
patent: 1215791 (1917-02-01), French
patent: 1472563 (1923-10-01), Loken
patent: 2826839 (1958-03-01), Kolbe
patent: 2896342 (1959-07-01), Reising
Crowder Clifford D.
Lowell Rudolph L.
Pingel G. Brian
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