Guidance device for drain tile laying machine
OwnerGermain Lazure, Robert Geleskoinventors
Life of this patent
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Abstract
An improved guidance device for use with an earthworking machine, more especially a drain tile laying machine, comprising a earthworking element mounted about a pivot connection. 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 a longitudinal spaced apart relation, 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 or depth of the element depending on the indication given by the signal receivers.
Claims8
An improved guidance device for use with an earthworking machine with an earthworking element mounted on the machine about a pivot connection, comprising:
- a signal emitter to be located at a given reference point;
- two signal receivers mounted on the earthworking element, said two signal receivers being mounted on the element in a longitudinally spaced-apart relation for distinguishing between a depth change or an attitude change in the element;
- and
- operating means for adjusting the attitude or depth of the earthworking element depending on the indication given by the signal receiver.
In a drain tile laying machine of the type comprising a plow mounted about a pivot connection for digging a trench at a desired slope and laying a drain tile in the trench, a tractor for pulling the plow, means for controlling the attitude of the plow and means for controlling the depth of the plow, the improvement consisting in an improved guidance device comprising:
- a signal emitter to be located at the reference point in the field to be dug;
- two signal receivers mounted on the plow in a longitudinally spaced-apart relation for distinguishing between a depth change and an attitude change in the plow;
- and
- operating means connected to the signal receivers, for adjusting the attitude or depth of the plow or both of them depending on the indication given by the signal receiver, so as to move the plow back to its desired attitude and depth if it deviates therefrom.
Dependencies are inferred from the claim text.