Abstract: In an apparatus for constructing high-rising, poured concrete walls, pairs of spaced-apart, upright supports are preliminarily mounted on a foundation and then detachably attached to both sides of at least a partially hardened level of concrete wall and at intervals along the length of the wall for repeated, upward, step-wise use as the wall is being formed; a plurality of carriages are mounted on adjacent supports along both sides of the wall for continuous upward movement as the wall is being cast, and adjustable concrete shaping assemblies are mounted on the carriages. Each assembly opposing a similar assembly to define a continuous mold into which new concrete is poured on top of previously poured concrete to form the wall.

Abstract: An impingement or rebound separator for removing mist from a flow of gas consists of a first series of spaced eliminator blades each having at least one of its ends connected to an end plate with the transverse axis of each blade sloping at an angle of about 20.degree. to about 30.degree. to the direction of flow of gas and a second series of spaced eliminator blades each having at least one of its ends connected to an end plate and with the transverse axis of each blade sloping at an angle of about 20.degree. to about 30.degree. to the direction of flow of gas but pitched in the opposite direction to the pitch of the first series of blades. The first and second series of blades defining a separator unit having a plurality of zig-zag or chevron shaped gas flow channels with the longitudinal axes of the blades tilted at an angle of about 30.degree. to about 45.degree.