Only two of the members 48 are provided, and the member 48 is more or less a cantilever member extending from the exterior periphery of the plates 47 so that no abutment surfaces are provided for interfering with {HEAD ~ feeding} of the workpieces W in direction A. Alternatively, the bottom roller 46 could be supported by the side walls 31, 32, or by the bottom plates 31, 32 associated with {TAIL ~ the respective side walls}, and the members 48, 49 may be eliminated 
Only two of the members 48 are provided , and the member 48 is more or less a cantilever member extending from the exterior periphery of the plates 47 so that no abutment surfaces are provided for interfering with { HEAD ~ feeding } of the workpieces W in direction A. Alternatively , the bottom roller 46 could be supported by the side walls 31 , 32 , or by the bottom plates 31 , 32 associated with { TAIL ~ the respective side walls } , and the members 48 , 49 may be eliminated
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