Abstract: The disclosure relates to scaffolding and includes the use of apertured locking discs adapted to cooperate with vertical supports, and horizontal or diagonal brace members. The ends of the brace members are provided with pivotable locking wedges which can be driven down through said ends and through the apertures in the locking discs. The apertures are all identically shaped and depending upon the intended purpose of the scaffold, certain surfaces of the ends of the brace members and the cooperating apertures are contacted by the locking wedges which thereby determines in which direction the horizontal members will extend.

Abstract: The invention relates to a shoring system which comprises tubular end frame members and at least horizontal connecting members supported by gusset members which are detachably connected to the horizontal as well as to the upright members.

Abstract: The invention relates to a truss shoring method and an apparatus therefor utilized in the pouring of concrete floors and includes a plurality of unitary members adapted to provide vertically adjustable and horizontally movable primary modular units serving to support poured concrete.

Abstract: The disclosure relates to the type of joist having an upper chord in the form of an inverted top-hat channel into which an insert is forced. The inner faces of the side walls of the channel converge towards one another at the top of the channel and the width of the bottom of the channel is greater than the width of the bottom of the insert.