Tool driving or impacting – Automatic control of power operated means – Tool advance causing or controlling means
Patent
1975-06-19
1976-12-21
Shapiro, Jacob
Tool driving or impacting
Automatic control of power operated means
Tool advance causing or controlling means
61 69R, 173 1, 173112, E02D 700
Patent
active
039980642
ABSTRACT:
There is disclosed a system for subaqueous pile driving in which the pile and the hammer are completely submerged. The pile is suspended by at least one cable in such a manner that two cable sections are run in an upward direction from the top of the pile in a parallel manner toward a device located above sea level. The pile is lowered on the cables to the ocean floor, and the pile driving hammer positioned on top of it simultaneously with the pile hammer guided on cable sections. A traverse bore is provided in the pile for passage of the cable, and a temporary support base is provided having slidable frictional contact with the pile for enlarging the base of the pile on the ocean floor.
REFERENCES:
patent: 26073 (1859-11-01), Whipple
patent: 3345879 (1967-10-01), Nasu et al.
patent: 3846991 (1974-11-01), Wisotsky
Hollandsche Beton Groep N.V.
Shapiro Jacob
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