Winding drum for producing belt inserts for pneumatic tires

Details Winding drum for producing belt inserts for pneumatic tires Winding drum for producing belt inserts for pneumatic tires

1975-10-15

1977-06-07

Drummond, Douglas J.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Tire body building type

156420, B29H 1716

Patent

active

040281698

ABSTRACT:
A winding drum for producing belt inserts for pneumatic tires has a casing the diameter of which is variable. A characteristic feature of the drum is that its cylindrical casing at its radially inwardly located edges is changed--looking in cross-section--into V-shaped disks which are inwardly bent. These disks and the casing consist of polyurethane with an E-modulum of about 800. The edges of the disks are fixed air tightly in a drum. Supports adjustable radially in an axial direction lie against the V-shaped bent sections of the disks.

REFERENCES:
patent: 1923705 (1933-08-01), Campbell et al.
patent: 2935117 (1960-05-01), Pfeiffer
patent: 3018213 (1962-01-01), Kraft
patent: 3111445 (1963-11-01), Pouilloux et al.
patent: 3386875 (1968-06-01), Grote
patent: 3531356 (1970-09-01), Henley
patent: 3813271 (1974-05-01), Riggs
patent: 3844871 (1974-10-01), Habert

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