Title: Method of mounting pipe flanges in the wall of a pressure vessel

Abstract: A method for welding of steel pipe to a pressure vessel comprising the steps of cutting an opening in the wall of the pressure vessel, joining a connection member which consists of a thickened rim or lenticularly shaped disc, aligning the disc with a bore at a right angle to a tangential plane of the outer surface of the connection member, and welding in two specific areas whereby said first weld at the rim of said forged disc to the wall of said pressure vessel has greater strength against notch breaking at the thicker portion and the second welding at the opening of the wall of said pressure vessel provides a smooth transition.

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Inventors: Fels, Emil (Pratteln, CH)

Application Number: 480100
Filing Date: 1974-06-17
Publication_date: 1976-01-27
Assignee: Buss, A.G. (Basel, CH)
Primary Class(es): 228/184 285/189
Other Classes:
US Patent Ref:

1937606	Dec, 1933	Taylor	228/138.
1966403	Jul, 1934	Durham	285/189.
2177127	Oct, 1939	Harter	228/178.
2981556	Apr, 1961	Jackson	285/189.
3171790	Mar, 1965	Challender et al.	220/3.
3456831	Jul, 1969	Johansson	228/184.

Other Refs:
Primary Examiner: Smith, Al Lawrence
Assistant Examiner: Ramsey, K. J.
Attorney: Saffitz; Abraham A.