EP 0014715 B1 19811014 - MACHINE FOR PULLING OUT A DRILLING TUBE OF THE GROUND
Title (en)
MACHINE FOR PULLING OUT A DRILLING TUBE OF THE GROUND
Publication
Application
Priority
DE 2815467 A 19780410
Abstract (en)
[origin: DE2815467A1] A machine for pulling out a drilling tube for a foundation pile, after concreting, is composed of a tightening collar consisting of several parts (2a to 2f), with a tightening cylinder (9) and a forked base frame. Those of the tightening parts (2c, 2d) which close the opening of the fork of the base frame, can be spaced apart by means of a closing twin-cylinder (16, 17) so that the fork is entirely free and the machine can be set laterally on a working position with respect to the tube. To close the tightening collar, the spaceable tightening parts (2c, 2d) are brought back into position and firmly locked together by means of a locking bolt (24).
IPC 1-7
IPC 8 full level
E02D 9/02 (2006.01); E21B 19/06 (2006.01)
CPC (source: EP)
E02D 9/02 (2013.01); E21B 19/06 (2013.01)
Designated contracting state (EPC)
CH FR GB
DOCDB simple family (publication)
DE 2815467 A1 19791011; DE 2815467 C2 19860102; EP 0014715 A1 19800903; EP 0014715 B1 19811014; WO 7900908 A1 19791115
DOCDB simple family (application)
DE 2815467 A 19780410; DE 7900038 W 19790407; EP 79900413 A 19790407