Abstract: An apparatus for gripping and lifting objects such as construction castings has a T-shaped frame comprising elongate horizontal and vertical frame members. The vertical frame member is slidably received in one end of a hollow sleeve member which is connected to its upper end to a loop or hook. A pair of articulated pivot arms are each connected at one end to the hollow sleeve member and at the other end to the horizontal frame member, with a joint being provided between the ends of each pivot arm. Carried at the ends of the horizontal frame member are a plurality of contact members which are adapted to contact and grip the sidewall of a construction casting. In use, the apparatus is placed over a construction casting with the horizontal frame member resting on the upper surface and with the contact elements in position facing the side wall of the casting. The apparatus is then lifted, for example by a backhoe or loader, which causes the sleeve member to slide upwardly along the vertical frame member.

Abstract: The present invention relates to an electric heating material. Said electric heating material comprises a substrate and an electric heating layer substantially homogeneously attached to said substrate. Said electric heating layer is obtained from an electric heating coating that contains an electric heating base material and a binder. Said electric heating base material is selected from the group consisting of natural graphite, artificial graphite or conductive carbon black; said binder is selected from the group consisting of acrylic resin, epoxy resin, polyurethane, melamine, gelatin, carboxymethyl cellulose, or polyvinyl alcohol. In some embodiments, the substrate is paper. Said electric heating material can be applied to make an electric heating laminate floor the temperature of the surface of which can be heated to 15-70° C. within 5 minutes when a 220 V power source is supplied, and this temperature can be kept consistent for a long period of time.