Back to results
US 4,074,553 AGranted
Laying pipe
AssigneeMorgan Construction Company
InventorHarold E. Woodrow
Life of this patent
Estimating the term…
Abstract
In a rolling mill, a rotatable laying pipe having at least one curved tubular pipe section with entry and exit ends. Replaceable tubular liner members are arranged in end-to-end relationship in each pipe section. Retainers are provided at the entry and exit ends of the pipe sections for retaining the liners in place during operation of the laying head.
Claims5
In a rolling mill, a rotatable laying pipe for forming a longitudinally moving product length into a helix, comprising:
- at least one rigid curved tubular pipe section having entry and exit ends;
- liner means axially received in said pipe section for providing a guiding surface for a product length passing through the laying pipe, the said guiding surface being spaced radially inwardly from the inner surface of said pipe section;
- and, retaining means at the entry and exit ends of said pipe section for axially retaining said liner means in said pipe section.
Dependencies are inferred from the claim text.