Threaded – headed fastener – or washer making: process and apparat – Implement – e.g. – die – etc. – Screw threading die
Patent
1995-10-20
1997-09-02
Larson, Lowell A.
Threaded, headed fastener, or washer making: process and apparat
Implement, e.g., die, etc.
Screw threading die
72402, 408153, 409191, B23B 326, B23G 508
Patent
active
056625243
ABSTRACT:
An apparatus for machining an end of a tube clamped within the apparatus and including a tool head rotatable about the axis of the tube, a plurality of tool holders including tools arranged about the tool head and radially moveable with respect to the axis, a plurality of push rods uniformly positioned about the tool head and axially parallel to the axis including oblique toothing positioned about one end thereof and a frame connected to the push rods and being displaceable along the axis to provide axial movement to the push rods. A transmission device including toothing for engaging the toothing on the push rods is positioned between the tool holders and push rods for imparting radial movement to the tool holders and tools connected thereto based upon axial movement of the push rods.
REFERENCES:
patent: 3073185 (1963-01-01), Hoffmann
patent: 4289430 (1981-09-01), Shashaty
patent: 4626149 (1986-12-01), Holy
patent: 5231859 (1993-08-01), Bailey
patent: 5480271 (1996-01-01), Jorgensen et al.
Barth Hermann-Josef
Esser Karl-Josef
Larson Lowell A.
Mannesmann Aktiengesellschaft
Schoeffler Thomas C.
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