| http://www.w3.org/ns/prov#value | - The combination described in claim 8, said frame including a bar extending over the machine element, said member comprising a rod, said means for moving the member toward and away from said surface comprising a base, spaced pivoted supports on the base for the rod, rotatable cam means cooperable with the rod to oscillate said rod and its spaced supports about the pivots for said supports, motor me
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