Pile driving device

Details Pile driving device Pile driving device

1975-12-05

1978-02-28

Purser, Ernest R.

Tool driving or impacting

Impacting devices

Hammer head constitutes piston of drive motor

173124, 173132, 173133, E02D 712

Patent

active

040760812

ABSTRACT:
A pile driving device comprises one or more guide stays, a Diesel hammer, consisting of a combustion cylinder guided by guide means along each guide stay and a hammer piston operating in said combustion cylinder.
Lifting the hammer piston at the start of the known pile-driving device takes place by means of a cable of a winch arranged at a large distance. In order to facilitate the starting the hammer piston is lifted by means of a hydraulic cylinder-piston set which via a catch engages the piston on the one hand and the combustion cylinder on the other hand.

REFERENCES:
patent: 2633832 (1953-04-01), Spurlin
patent: 2882690 (1959-04-01), Frederick
patent: 2948122 (1960-08-01), Smith
patent: 3401755 (1968-09-01), Frederick
patent: 3552501 (1971-01-01), Weiss
patent: 3934656 (1976-01-01), Pappert

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