Level excavation device

Details Level excavation device Level excavation device

E - Fixed Constructions

02

F

214/29, 214/40,

E02F 3/36 (2006.01)

Patent

CA 1137034

LEVEL EXCAVATION DEVICE ABSTRACT OF THE INVENTION A power shovel having a boom, a dipper stick, and a bucket is provided with a system for maintenance of a level- grade excavation. A level sensor and appropriate feed-back controls are provided on the bucket of the shovel in order to keep the bucket at a predetermined angle relative to the ground. rotating laser beam is positioned remote from the device, and a laser receiver is attached to the hinged junction between the dipper stick and the bucket and at a fixed angle relative to the bucket for controlling the height of the bucket relative to the desired grade. Provision is made for positioning the laser receiver and associated pole for use fox an alternate position for rough excavation or transport.

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