Metal deforming – With use of control means energized in response to activator... – Sensing tool or tool-linked part
Patent
1992-03-03
1993-08-03
Larson, Lowell A.
Metal deforming
With use of control means energized in response to activator...
Sensing tool or tool-linked part
72208, 72283, 72402, B21B 1708, B21B 3708
Patent
active
052318591
ABSTRACT:
A fluting machine and method produce fluted poles. The fluting machine has an aperture means, a carriage, and a track configured so that the carriage can travel on the track toward the aperture means. The carriage has a fluted mandrel for holding a pipe to be fluted. The carriage carries the fluted mandrel and pipe parallel to the track to and from the aperture means at a constant speed irrespective of any fluctuations in driving resistance. The aperture means has a stationary inner part, a rotatable outer head, and a set of rotatory dies. The rotatory dies are circumferentially situated about and perpendicularly extendable within an aperture opening defined by the stationary inner part. The aperture opening is for accepting the fluted mandrel and pipe therethrough. The rotatable outer head causes extension of the rotatory dies within the aperture opening and against the pipe when the rotatable outer head is rotated. The rotatory dies roll along the length of the pipe on the fluted mandrel at constant pressure to thereby produce flutes in the pipe.
REFERENCES:
patent: 838569 (1906-12-01), Numan
patent: 1605828 (1926-11-01), Frahm
patent: 1638481 (1927-08-01), Frahm
patent: 3112661 (1963-12-01), Coe
patent: 3238752 (1966-03-01), Dilling
patent: 3330145 (1967-07-01), Adolphi
patent: 3841125 (1974-10-01), Guse
patent: 4186585 (1980-02-01), Passoni et al.
patent: 4345453 (1982-08-01), Lillbacka
Larson Lowell A.
Schoeffler Thomas C.
Trimble House Corporation
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