Apparatus for withdrawing a tube or pile which has been driven i

Details Apparatus for withdrawing a tube or pile which has been driven i Apparatus for withdrawing a tube or pile which has been driven i

1986-05-27

1987-10-20

Taylor, Dennis L.

Hydraulic and earth engineering

Foundation

Columnar structure

173 91, 405228, 405246, E02D 706

Patent

active

047010770

ABSTRACT:
Device for withdrawing a pile or the like which has been driven into the soil by a ram device which can perform blows downwardly and upwardly and which in upward direction has a lost-motion connection with the pile, which lost motion for efficient withdrawal is removed by the extension of hydraulic cylinders.

REFERENCES:
patent: 1102652 (1914-07-01), Gibb et al.
patent: 1566631 (1925-12-01), Sturtevant
patent: 2752889 (1956-07-01), Leavell
patent: 2942427 (1960-06-01), Berthet et al.
patent: 3583499 (1971-06-01), Cordes
patent: 3651873 (1972-03-01), Uebel et al.
patent: 3744576 (1973-07-01), Sudnishnikov et al.

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