| http://www.w3.org/ns/prov#value | - The reference numbers 102, 103, 104 and 107 in FIGS. 8 and 9 indicate the respective profiles (made of plastic material or of some other light material) mounted on the trolley 18 in such a manner as to be to all intents and purposes united with the rollers 17 in the general transverse movement of the output end of the conveyor 5 controlled by the motor 20.
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