摘要 |
A conveyor suitable for displacing pans containing dough portions in a proofing chamber according to a continuous spiral, actually helical track, of which conveyor the conveyor is formed by at least one chain and a plurality of driving devices which engage the chain at different levels of the spiral track, said spiral track comprising parallel, rectilinear sections and curved connection bends, the driving devices being designed as pocketed sheaves which in rectilinear track sections engage the chain or chains, said chains being designed as a link chain of the ship's anchor chain type and guided in fitting sections, there being disposed chain tensioners means at each driving pocketed sheave.
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