Methods for production of continuous stretches of circular cylindrical members, tools, use of a tool, a length of pipe and pipe parts

Abstract

The present invention regards methods of projecting, producing and bending continuous stretches of circular cylindrical bodies, such as stretches of piping, handrails and rails for stair lifts. The invention also regards a tool for use with the method, application of a tool, and a length of pipe and fittings prepared for use with the method. During the project planning, the orientation of the fitting (52) is given in relation to the first piece of pipe (50), by the cut angle of the fitting (52) and the rotational angle (δ) of the fitting about the longitudinal axis of the pipe (50) relative to a defined spatial direction gen by a mark (53, 54) on the piece of pipe (50) and the fitting (52). During construction, the piece of pipe (50) is arranged with one side in a defined spatial direction, the fitting (52), which has a given cut angle, is fitted to the piece of pipe (50) and the fitting (52) is rotated through a pre-determined rotational angle (δ) that is measured relative to the defined spatial direction. A tool (70) with an angle gauge (74) is used to measure the rotational angle (δ). This angle gauge may be electronic. When bending lengths of pipe, a bending tool (60) is used, which tool is equipped with an angle gauge (66) for measuring the rotational angle of the length of pipe (61) about the longitudinal axis. A system for determining construction method and construction is also described.

Dependencies are inferred from the claim text.