A fibre reinforced cement column and method of forming on a lathe automatically adjusting for surface imperfections

摘要

A lathe assembly for forming a fibre reinforced cement elongate tubular body (5) is disclosed. The lathe assembly includes an elongate base (2), a pair of chucks (4), two or more lateral supports, drive means (8) for rotating the body (5) about its longitudinal axis and a profiling tool (9). The chucks (4) are located at opposite longitudinal ends of the base (1) and are configured to engage opposite ends of the tubular body (5). The lateral supports are connected to the base (2) to support the tubular body (5) at two or more support locations between its ends. The profiling tool (9) is connected to the base (2) and engageable to machine or profile the outer circumferential surface of the tubular body (5). The lateral supports take the form of support rollers engageable with the surface of the body (5), one of which is radially movable in response to imperfections in the outer circumferential surface of the body (5).