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spool
editCorrect expansion of SPOOL in the context of Spooling
editAll of the manuals that I have define SPOOL as Simultaneous Peripheral Operation On Line. To the best of my knowledge the term originated on the IBM 7070 with the IBM 7070 SPOOL System, 7070-IO-076.
See IBM. IBM 7070 SPOOL System. J28-6047-1. {{cite book}}: Unknown parameter |Separator= ignored (help)
high flanged as well
editCable spools are usually rather high flanged, with extra radius of flange = 50...200% of inner spool width. Spools for LED ribbons as well. The spools with the highest flanges I have seen are those, aside of a travelling crane, that winds up the power cable of about 3 cm diameter in a pure spiral. The inner spool is not much bigger than the cable diameter an one winding goes on top of the other. Core and maximum diameter of the spool are about 50 and 200 cm.
Flat cinema film is spooled on reels in a similar way. These reels may have a diameter of 40...50 cm for delivery of films in 2 (or more?) parts, the connected film will fill a reel of about 65...70 cm diameter. Super 8 film-Film and tape for sound recording use high-flanged reels (spools?) as well. --Helium4 (talk) 14:42, 16 February 2014 (UTC)