Patent ID: 6318048
Filing Date: 2001-11-20
Classification: B65B

Abstract:
A mast and trolley assembly for use in connection with a machine, comprising:a vertically upstanding mast member;a head assembly having components thereon for performing an operative function upon a product to be processed by the machine;a trolley assembly having said head assembly affixed thereon and having a polygonal configuration so as to be mounted upon said vertically upstanding mast member in a surrounding manner for movement along said mast member between different vertical elevational positions;first means mounted upon said trolley assembly for adjustably engaging at least one external surface of said mast member with varying degrees of force such that said trolley assembly is movable along said mast member in a stable manner between said different vertical elevational positions in a relatively smooth manner without any excessive play and chatter defined between said mast member and said trolley assembly; andsecond means mounted upon said trolley assembly for lockingly engaging said mast member so as to fix said trolley assembly at a particular elevational position along said mast member when said trolley assembly has been moved from a first one of said different vertical elevational positions to a second one of said different vertical elevational positions.