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Priority claimed from DE4309233Aexternal-prioritypatent/DE4309233C1/en
Priority claimed from DE9304326Uexternal-prioritypatent/DE9304326U1/en
Application filed by Stahl Und Appbau Hans Leffer GmbhfiledCriticalStahl Und Appbau Hans Leffer Gmbh
Application grantedgrantedCritical
Publication of TW255932BpublicationCriticalpatent/TW255932B/en
A process for exactly holding the vertical excavation direction of a diaphragm wall using a hydraulic diaphragm wall grab cooperating with an excavator and having an outer guide body and an inner body for receiving the grab appliance is improved and rendered considerably more efficient by the fact that the vertical position of the inner body and/or the guide body is continuously controlled by means of an inclination detector whose signals are transferred to a controller which, in case the bodies of the grab deviate from the predetermined vertical position, compensates the deviation by swivelling the inner body relative to the guide body in opposite direction to the deviation.
TW83111210A1993-03-231994-12-02A process and a device for exactly holding the vertical excavating direction of a diaphragm wall
TW255932B
(en)
DEVICE STRUCTURE AND PROCEDURE FOR AUTOMATIC CONTROL OF LOCKING OF DIFFERENTIAL PARTICULARLY FOR INDUSTRIAL MACHINES, EARTH-MOVING MACHINES AND SIMILAR