Abstract: A metal form has a flexible panel member with a perimetral flange projected laterally from one side thereof. Each of a pair of transversely opposite side sections of the flange is segmented by a plurality of longitudinally spaced V-shaped notches having their apices adjacent the one side of the panel member to provide for a lateral flexing movement of the panel member to a preselected shape. With the panel member in the predetermined shape, the segments in each of the flange side sections are connected together against relative movement to retain the predetermined shape of the panel member. In a preferred embodiment, each flange segment is connected to an adjacent flange segment by a flexible metal strap.

Abstract: A dual capacity hook-lift hoist mounted on a wheeled chassis for use in loading detached objects, such as containers, onto the chassis for transport to any location. The hook-lift hoist is also operable to tilt a loaded container to dump its contents. The hook-lift hoist includes at least one hydraulic cylinder that is sized to have a maximum loading capacity that is below the safe limit of the truck but which is capable of dumping a container that is at least equal to the carrying capacity of the chassis.

Abstract: A heating apparatus for assisting in the curing of concrete includes a heater and pump for providing a supply of heated fluid to a network of tubing arranged on the back or non-working side of a concrete form. The heated fluid is used to maintain a desired temperature of the curing concrete to reduce the cure time and/or accelerate the strength gain of the curing concrete. In an alternative embodiment, a heated concrete blanket includes a flexible sheet material on the back side of which is arranged a network of tubing through which heated fluid is distributed. The flexible blanket is used to cover curing concrete and regulate the temperature adjacent to the curing concrete. In both embodiments, insulating material may be used to cover the network of tubing on the back side of the apparatus to prevent undesired heat loss.