| http://www.w3.org/ns/prov#value | - A tensioning device is provided for adjusting the tension in belt 135, said device including a link or rod 151 pivotally joined to support arms 138 and extending through a clamp 152 carried by a cross shaft 153, the end of the rod being suitably threaded and fitted with a nut whereby adjustment of the tension in the belt 135 may be effected.
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