Abstract: In a first aspect there is disclosed a spike assembly (10) including a base (12) and a spike formation (14) operatively attached to the base (12). The spike formation (14) is adapted to hold a plurality of impaled sheets and includes an elongate spike (16) longitudinally extending between a base end (18) and an impale end (20). The base end (18) of the spike (16) is operatively adapted for attachment to the base (12). The spike assembly (12) further includes a (i) handle (26) operatively associated with the spike formation (14) and moveable relative to the spike formation to apply force to a sheet to be impaled on the spike formation, and (ii) a guide assembly (28) operatively adapted to guide movement of the handle (26) relative to the spike formation (14).

Abstract: An expandable device including: a first member; a second member; at least one tension member attached to the first and second members and extending between the first and second members, the first and second members movable between an open position, in which at least a part of the first member is spaced from the second member, and a closed position, in which said at least a part of the first member is adjacent the second member; and at least one spacer sized to be located between the first and second members when in the open position, and to maintain the first and second members in the open position, wherein, in the open position, the at least one tension member is held taut between the first and second members.

Abstract: An expandable device including: a first member; a second member; at least one tension member attached to the first and second members and extending between the first and second members, the first and second members movable between an open position, in which at least a part of the first member is spaced from the second member, and a closed position, in which said at least a part of the first member is adjacent the second member; and at least one spacer sized to be located between the first and second members when in the open position, and to maintain the first and second members in the open position, wherein, in the open position, the at least one tension member is held taut between the first and second members.