Excavating – Ditcher – Having endless digger
Patent
1992-06-17
1993-11-02
Taylor, Dennis L.
Excavating
Ditcher
Having endless digger
37355, 37180, 37465, 37446, E02F 506
Patent
active
052574717
ABSTRACT:
An excavator for forming an underground continuous wall includes a traveling trolley movable on a ground and an upper frame constructed on the trolley. The excavator further includes a guide post vertically extending and vertically movably provided at one side of the upper frame on the trolley and variable in length by supplementary extension guide post members detachably connectable thereto through flanges. Chain sprockets rotatably provided on the guide post at its upper and lower ends and at one end rearward of the chain sprocket at the upper end of the guide post, respectively. An endless chain extends around the chain sprockets to be driven by rotation of at least one of the chain sprockets. A number of excavator buckets are provided on the endless chain therealong spaced at suitable intervals to form an endless chain bucket type cutter.
REFERENCES:
patent: 419401 (1890-01-01), Baldry et al.
patent: 471920 (1892-03-01), Warren
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patent: 733422 (1903-07-01), Raymond
patent: 1131071 (1915-03-01), Monahan
patent: 1802106 (1931-04-01), Bosworth
patent: 2648145 (1953-08-01), Askue
patent: 2981012 (1961-04-01), Meyer
patent: 4843742 (1989-07-01), Camelleri
Hokushin Kogyo Corporation
Olsen Arlen L.
Taylor Dennis L.
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