Backing ring assembly for pipes

Details Backing ring assembly for pipes Backing ring assembly for pipes

1974-11-25

1976-06-01

Smith, Al Lawrence

Metal fusion bonding

With means to handle work or product

Including means to orient work or position work portion...

228 50, 228216, B23K 522

Patent

active

039603113

ABSTRACT:
A backing and alignment ring assembly for insertion in pipes, particularly for welding purposes, comprising a segmented backing ring and a pair of axially spaced hub members connected to the backing ring by radially and axially extending connecting means. When the hub members are drawn together the backing ring is caused to expand and engage with the pipe bore.

REFERENCES:
patent: 1964926 (1934-07-01), Moss

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