Method of making transport drum

Details Method of making transport drum Method of making transport drum

1979-08-23

1981-11-10

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

291484D, 29445, 29132, B23P 1102

Patent

active

042990220

ABSTRACT:
A method and apparatus are described for providing a transport drum for use in equipment for the wet processing of photographic film and/or papers. A supporting insert is mounted on and secured to an axle; the insert includes a plurality of longitudinally extending ridges having T-shaped cross-sections. A suitable foam material having, for example, a rectangular or square cross-section, is drilled with a hole to permit the insertion of the axle and supporting insert. The foam material is forced over the supporting insert to insure intimate and firm contact between the surface of the supporting insert and the foam. The outer surface of the foam material is then shaped by conventional techniques to form a cylindrical drum comprising an axle, a supporting insert with longitudinal ridges, and cylindrically formed foam material.

REFERENCES:
patent: 1532682 (1925-04-01), Busch
patent: 2167215 (1939-07-01), Leary
patent: 2287768 (1942-06-01), Eckstein
patent: 2534205 (1950-12-01), Newhall et al.
patent: 2715879 (1955-08-01), Sawyer
patent: 3139826 (1964-07-01), Rainwater
patent: 3184828 (1965-05-01), Dames
patent: 3611536 (1971-10-01), Guenther et al.

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