Surface trowelling device

Details Surface trowelling device Surface trowelling device

E - Fixed Constructions

04

F

72/148

E04F 21/16 (2006.01) E04F 21/24 (2006.01)

Patent

CA 1130106

A SURFACE TROWELLING DEVICE Abstract of the disclosure For trowelling concrete spread over a floor, a trowelling device is used, which includes a carrier having a cantilever arm swingable over the floor. At the distal end of the arm a rotatable trowelling member is carried in a pedestal structure permitting vertical adjustment of the floor contacting parts. A laser sends a horizontal beam at a predetermined level over the floor, and an upwardly directed measuring rod at the housing of the trowelling member is pro- vided with a detector for catching the beam, and for trans- ferring deviations of the beam from a mark thereon into signals for adjusting the position of the trowelling member.

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