Invention Application
- Patent Title: Hydraulic positioning assembly for cold rolling tubes
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Application No.: US10087789Application Date: 2002-03-05
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Publication No.: US20020088264A1Publication Date: 2002-07-11
- Inventor: James O. Williams
- Applicant: Mueller Group, Inc., a Delaware corporation
- Applicant Address: null
- Assignee: Mueller Group, Inc., a Delaware corporation
- Current Assignee: Mueller Group, Inc., a Delaware corporation
- Current Assignee Address: null
- Main IPC: B21D015/04
- IPC: B21D015/04

Abstract:
A cold rolling apparatus includes a forming roll which applies a forming load to a tube when cold rolling the tube, and a hydraulic positioning assembly including a positioning roller disposable for initial contact with a tube surface and arranged to apply a positioning load to the tube. A hydraulic circuit is coupled to the forming roll and to the hydraulic positioning assembly such that the positioning load is related to the forming load. A face plate mounted for movement with the forming roll, and the positioning roller is mounted to the face plate. The face plate is coupled to a piston of the hydraulic positioning assembly for movement with the piston relative to the forming roll. The piston is housed within a cylinder body coupled to a guide block which is coupled to the forming roll. The forming roll is an outside roll, and the cold rolling apparatus includes two positioning rollers.
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