Device for spreading flanges

Details Device for spreading flanges Device for spreading flanges

1985-03-20

1986-09-09

Jones, Jr., James L.

Metal working

Means to assemble or disassemble

Spreading parts apart or separating them from face to face...

29256, 411412, 411423, 411426, B23P 1904

Patent

active

046100644

ABSTRACT:
A device for spreading two flanges (1, 2) mounted in opposite position in a pipe system (3), which device mainly comprises a conical screw element (7) to be inserted into a continuous hole of a flange, said element having an axial opening, in which fits a pressure member (6) having a pressure head face for the axial displacement of the pressure member in said opening, wherein the screw element (7) has a screwthread with at least three leads in order to adapt said device for a greater variety of hole diameters in the flanges (1, 2) and to guarantee the necessary guiding of the conical screw element (7) during insertion thereof.

REFERENCES:
patent: 1468334 (1923-09-01), Thomason
patent: 1804935 (1931-05-01), Jacobus
patent: 1930859 (1933-10-01), Munroe
patent: 2591451 (1952-04-01), Lynch et al.
patent: 4015324 (1977-04-01), Lutter

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