| 摘要 |
Device equipped with a central cylinder 1 in which there are two fixed heating elements 2 in opposing positions, and with two entrainment chains 3 partially meshing with said central cylinder and with four crowns 4 associated with the corresponding shafts 5 provided on the chassis or bench of the assembly, characterized essentially in that on the chains, via suitable supports 13, there are overhead heating elements 6 optionally associated with tamping devices 12 and equipped at their ends with current take-offs in the form of plugs distributed in the following manner: on one side, a single plug 7 and on the other 2, 8, it being possible to fit the plugs into heating seats of the cylinder and of the chains [lacuna] are superposed, the contacts close and the overhead resistance elements are activated. <IMAGE>
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