Patent ID: 8245850
Filing Date: 2012-08-21
Classification: B07B

Abstract:
1. Screen separating apparatus comprising: a chassis for supporting a screen frame carrying and stretching a tautly held sieve screen, said chassis providing a first bearing surface; at least one second bearing surface opposed to said first bearing surface such that the screen frame can be clamped between the first and second bearing surfaces; and at least one expandable element mountable in the chassis to be between said first and second bearing surfaces and expandable in a direction transverse to said bearing surfaces to effect said clamping of the screen frame; characterised by one or more clamping members the or each of which is movable between a non-deployed position, in which said screen frame carrying said stretched sieve screen can be lifted in said transverse direction away from said first bearing surface for removal from the chassis, and a deployed position, in which the clamping member is located relative to the chassis to provide said second bearing surface or one of a combination of said second bearing surfaces.