摘要:
A device for connection with a liner plate at a point without a drum to be lined and moving it into positions within the drum and onto the walls thereof for connection therewith including a retractable boom having an arm pivoted on the outer end of the boom with a platen pivotally mounted on the outer end of the arm and a rack and pinion for pivoting the arm in a plane on the centerline of the boom together with means for pivotally moving the platen on the arm, a head member mounting the other end of the boom on a supporting surface together with means for rotating the boom to rotate the platen with respect to the horizontal axis of the boom, with means for pivoting the boom to move the platen substantially radially of the axis of the boom independent of the means for pivotally moving the platen together with means for positioning said platen at a point without a drum to receive a liner plate thereon and to points within said drum for positioning the liner plate on the walls of the drum for connection therewith.
摘要:
Indexing apparatus for accurately marking and positioning indicia to enable cutouts to be formed in a panel in order to accommodate fixtures and other objects associated with a building structure which must be received within the cutouts when the panel is attached to the structure.