Tool driving or impacting – Advance causing or controlling means – Motor causes or controls advance
Patent
1978-04-26
1979-05-01
Staab, Lawrence J.
Tool driving or impacting
Advance causing or controlling means
Motor causes or controls advance
173DIG1, 405232, B23Q 500
Patent
active
041518888
ABSTRACT:
An elongated hollow tube 2 is secured to the top of a pile driver 1, and the assembled unit is lowered to the head of an anchoring pile 12on the sea bottom via spaced guide rings 13 on a submerged tower 10. The flexible hose string 5 for conveying hydraulic, electric, pneumatic, etc. power and control to the pile driver is accommodated in a loop fashion within the tube 2 via a weighted and floating pulley(s) 7, and feeds out during the lowering of the unit through guide rings 13 spaced on the tower over a pulley 4 mounted on a detachable surface ring 3. The various hoses and cables in the string 5 are maintained in a parallel relation by periodic clamping means 14, and smooth surface reel winding is implemented by periodic spacers 26 secured to the outboard tension cables 15, 16 in the string.
REFERENCES:
patent: 2730332 (1956-01-01), Hale
patent: 2886290 (1959-05-01), Brennan et al.
patent: 3162253 (1964-12-01), Curtis
patent: 3927722 (1975-12-01), Frederick
patent: 3991581 (1976-11-01), Kolb
patent: 4035969 (1977-07-01), Casagrande
Hollandsche Beton Groep N.V.
Staab Lawrence J.
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