Treatment plant
AssigneeStork Amsterdam B.V.
InventorSalomon Santen
Life of this patent
Estimating the term…
Abstract
A plant for physical or thermal treatment of products supported upon rectangular carriers, said plant comprising a vertical conveyor for moving the carriers upwards and downwards from in inlet station to an outlet station, the conveyor being constituted by four screw-threaded spindles, positioned near the four corners of the carriers. The helix of each spindle is a rod which is helically wound around a core. The pitch of the helix is, along an angular portion of this surface, zero at the level of the inlet and outlet station.
Claims6
An apparatus for physical and/or chemical treatment of products in a treatment space, said products being supported on carriers which are conveyed through the treatment space in a vertical direction, the products being introduced through at least one passage opening into the space and discharged from this space through another opening, the plant comprising driven conveying members within the treatment space for the vertical movement of the carriers, wherein these conveying members are vertically positioned screw spindles (or screwthreaded rods), each of which is capable to cooperate with a part of all carriers within the treatment space
- a housing for said space which is at least in its upper and lower part provided with a passage opening with rails for guiding the carriers, which have two parallel rows of supporting rollers, each screw spindle always cooperating with one of the supporting rollers of each carrier during its vertical movement (transport),
- each carrier having a bottom constituted by a plurality of parallel rods, the rods being freely rotatable in the respective carrier and at least one of them being coupled to a supporting roller which cooperates with a screw spindle.
Dependencies are inferred from the claim text.