Floating mandrel duct making apparatus

Details Floating mandrel duct making apparatus Floating mandrel duct making apparatus

1975-06-16

1976-06-08

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Longitudinally progressive helical winding means

156143, 156195, 156429, B65H 8100

Patent

active

039620190

ABSTRACT:
Apparatus for generating wire reinforced tubular duct featuring a cantilever mounted mandrel supported for rotation and serving as a supporting surface about which lapping wraps of flexible strip of duct material are formed along a helical path around and forwardly off the mandrel. A helical guide fixed in relation to the mandrel and an endless drive belt coact to drive the flexible duct material along its helical path with the drive belt serving to advance the flexible duct material axially along the mandrel and to rotate the mandrel.

REFERENCES:
patent: 2592336 (1952-04-01), Reveski
patent: 2731070 (1956-01-01), Meissner
patent: 3272678 (1966-09-01), Swan
patent: 3300812 (1967-01-01), Pasquetti
patent: 3567101 (1971-03-01), Ranne

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