Ground level controlling device for placing concrete screed during renovation, has circular base comprising axle for rotating hawk, and arm integrated to axle and comprising sliding system for rising or lowering hawk to change mortar load

摘要

The device has a circular base (1) comprising a vertical axle (2) for rotating a hawk (7) up to 360 degrees, and an arm (3) integrated to the axle. The arm has a sliding system (5) for rising or lowering the hawk to change mortar load, and a hinge (6) for ensuring independent horizontal movement of the hawk. The base has a level adjusting system (4) that is divided into three parts and placed around the axle.