{HEAD ~ Two levers} pivotally mount {TAIL ~ the pressing roller} on a housing which, in turn, is detachably mounted on a support, the housing being extremely flat and bounding a chamber which has an open end 
pivotally mount
{ HEAD ~ Two levers } pivotally mount { TAIL ~ the pressing roller } on a housing which , in turn , is detachably mounted on a support , the housing being extremely flat and bounding a chamber which has an open end
HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH