| http://www.w3.org/ns/prov#value | - including a ratchet wheel operatively fixedly mounted on said one end, a pawl carrier mounted for oscillating movement on said carriage, drive means including a motor mounted on said fork weighing said one end and having a drive shaft with an eccentric connected for oscillating said carrier, a pair of ratchet pawls normally out of engagement with said ratchet wheel and extending in opposite direc
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