Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1982-03-29
1984-05-15
Levy, Stuart S.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 74, 242 771, 354341, B65H 7514, B65H 7528
Patent
active
044483651
ABSTRACT:
A spool for developing (and optionally drying) strip-shaped film material has a core and two axially spaced end flanges provided with many large cut-outs so as to leave only a few narrow, spoke-like portions of material. A pair of inserts is provided which are placed against the outer sides of the respective end flanges and have projecting plug-like portions which enter the respective cut-outs. The inner surface of each of these plug-like portions has a plurality of major fragments of the turns of a spiral groove. The inner surfaces of the spoke-like portions have spot-support portions defining on each spoke-like portion a plurality of minor fragments of the turns of the same spiral groove, so as to complete the groove when the plug-like portions are inserted into the cut-outs. The film strip or strips is (or are) then inserted into the groove to spirally surround the core. Thereafter, the inserts are detached from the spool and can be immediately used to load another spool. This leaves the film material held only by the spot supports so that no shading will occur during development of the film or films.
REFERENCES:
patent: 2299981 (1942-10-01), Harlam
patent: 2578262 (1951-12-01), Paterson
patent: 2711864 (1955-06-01), Windman
patent: 3132818 (1964-05-01), Hansen et al.
patent: 3795370 (1974-03-01), Dean
patent: 3819125 (1974-06-01), Bockemuehl-Simon
Bernhardt Rainer
Bockemuehl-Simon Johannes J.
Kremer Walter
Petsching Helmut
Haugland Scott J.
JOBO Labortechnik GmbH & Co. KG.
Kontler Peter K.
Levy Stuart S.
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