Patent ID: 8690139

Claim:
An adapter for a magnetic clamp for supporting a concrete sideform in position on a casting surface, the adapter including: a body mountable to the magnetic clamp with a first face of the adapter in abutment against a surface of the magnetic clamp, the body having an aperture for coupling the body to the magnetic clamp, the aperture being in the form of a slotted hole to lock the adapter in position with upward movement of the adapter along said surface of the magnetic clamp; a sideform engaging portion for engaging a sideform to be supported in position by the magnetic clamp, the sideform engaging portion being movable relative to the body; and a height compensation mechanism including an urging means arranged to urge the sideform engaging portion relative to the body for compensating for height variations between the magnetic clamp and the sideform when the magnetic clamp is in magnetic contact with the casting surface to anchor the sideform in position on the casting surface, wherein the adapter has a second face for abutting against a rear surface of the sideform, the second face being opposed to the first face of the adapter to accommodate the adapter being sandwiched between the sideform and the magnetic clamp in use, and the height compensation mechanism being arranged to allow movement of the sideform engaging portion parallel to a plane of the second face to accommodate said height variation between the magnetic clamp and the sideform in a direction perpendicular to the casting surface to thereby maintain magnetic tact between the magnetic clamp and the casting surface.