Method of withdrawing elongate tubular members

Details Method of withdrawing elongate tubular members Method of withdrawing elongate tubular members

1978-01-17

1979-07-24

Mehr, Milton S.

Metal working

Method of mechanical manufacture

Shaping mating parts for reassembly in different positions

29401R, 29282, B23P 1902

Patent

active

041618106

ABSTRACT:
An elongated tubular member is withdrawn from a bore in a support member by ixing at a leading end of the tubular member a hollow adapter, inserting through the tubular member and the hollow adapter a rod having an overall length greater than the combined length of the tubular member and the adapter, securing said rod to the adapter at one end of the tubular member, securing a broach to the rod at the other end, pulling the tubular member by suitable gripping means to withdraw it from the bore and thereby drawing the broach through the bore to re-shape it.
A suitable form of gripping means is also disclosed in the form of a hydraulically operated chuck.

REFERENCES:
patent: 3057631 (1962-10-01), La Fleur
patent: 3341930 (1967-09-01), Belanger
patent: 3613212 (1971-10-01), Miller
patent: 3791011 (1974-02-01), Keys
patent: 3835520 (1974-09-01), Sismore
patent: 3857158 (1974-12-01), Costello

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