Guidance device for drain tile laying machine

Details Guidance device for drain tile laying machine Guidance device for drain tile laying machine

E - Fixed Constructions

02

D

61/4.4

E02D 15/00 (2006.01) E02F 5/10 (2006.01) E02F 5/14 (2006.01) G01C 15/00 (2006.01)

Patent

CA 1091456

ABSTRACT OF THE DISCLOSURE: An improved guidance device for use with an earthwork- ing machine, more especially a drain tile laying machine, comprising a earthworking element mounted about a pivot connec- tion. This guidance device comprises a signal emitter and two signal receivers mounted on the earthworking element of the machine. The two signal receivers are mounted on the element in longitudinal space apart relation, one of each longitudinal side of the pivot connection, so as to distinguish between a depth change or an attitude change in the element. The guidance device also comprises operating means including an electronic control circuit and an hydraulic operating circuit for adjusting the attitude of depth of the element depending on the indication given by the signal receivers.

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