a mixing bowl comprising a vessel, a cover for said vessel, {HEAD ~ a conical part} in {TAIL ~ said cover}, means for removably locking said cover on the vessel, 
a mixing bowl comprising a vessel , a cover for said vessel , { HEAD ~ a conical part } in { TAIL ~ said cover } , means for removably locking said cover on the vessel ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH