The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 1983
Filed:
Jun. 23, 1981
John W Rippin, Streetsville, CA;
Pro-Eco Limited, Mississauga, CA;
Abstract
A strip recoiling drum including a gripper slot and a movable gripper bar for gripping the end of a strip to be recoiled and a pair of axially pivotable drum walls to vary the drum circumference. The gripper bar and drum walls are movable by means of longitudinally movable internal wedge members which are simultaneously actuated by an hydraulic piston and cylinder arrangement to close the gripper slot and expand the drum circumference. The gripper bar includes wedge elements which engage cooperating wedge elements on the gripper wedge member and a radially movable wedge to move the drum walls is cooperatively engaged with an axially movable drum wedge actuator member. Initial movement of the wedge members grasps the leading edge of the strip in the gripper slot and simultaneously moves the drum walls outwardly to their maximum circumference positions. Hydraulically operated external wedges are adapted to move the internal wedge members in an opposite direction, thereby releasing the grip of the gripper bar on the leading edge of the strip being recoiled and simultaneously causing the drum walls to be moved inwardly to reduce the drum circumference. The movement of the wedge members in either direction can be accomplished while the drum is rotating.