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This topic comprises 3 pages: 1 2 3
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Author
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Topic: Reel Arms and Reels?
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Stephen Furley
Film God

Posts: 3059
From: Coulsdon, Croydon, England
Registered: May 2002
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posted 10-05-2004 06:18 AM
quote: Ian Joseph Parfrey Would anyone know why Bauer, in their infinite wisdom would bring out a totally non-standard 9mm shaft with two drive dogs on their U3 & U4 projectors?
9mm shafts are quite common in mainland Europe, and on machines made there. I haven't seen a Bauer 35mm machine, so I don't know if they are using the standard 9mm ones, or something slightly different.
These are close in size, but not identical, to the 3/8" shafts which are common in Britain; a 3/8 spool will usually fit on a 9mm shaft, but is slightly loose. I've seen both of these sizes with one or two drive pins, (one is more common) but since all the 2k and 6k spools I've seen in these sizes have four holes, it makes no difference. I have seen a few large tower spools for 1/2" shafts, which have only three drive holes, at 120 degrees, and these would obviously not fit on a shaft with two drive pins, which some 1/2" rewinders have.
Kinoton list both American and European 1/2" shafts for their machines; I don't know what the difference is.
I know of at least nine different shaft types on 35mm:
5/16" with key 5/16" with drive pin (rare, only seen it on a few very old machines) 9mm with drive pin 3/8" with drive pin 1/2" with one drive pin 1/2" with two drive pins
With 1/2" the difference does matter, because of the three hole tower spools.
Some machines have their own, non-standard shafts:
Fedi machine with very large spools mounted on the base. about 1" GBN portable. 1/2" with smaller, closer, drive pin, like 3/8" BTH Mk.1 SUPA. Weird, never seen anything else like it.
There is also 5/16" with square one end, like 16mm, not normally used for motion picture film, but is used for things like document microfilm,and so might be used on some types of equipment, like a film cleaning machine for example.
One reason I prefer to receive film on cores, at least they seem to be standard worldwide, even the very old wooden ones.
There are some spools which have a removable centre which can be swapped for running on different machines.
Most British cinemas probably couldn't handle a 5/16" American shipping reel, as they don't use anything that size.
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Stephen Furley
Film God

Posts: 3059
From: Coulsdon, Croydon, England
Registered: May 2002
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posted 10-05-2004 10:09 AM
quote: Steve Guttag All cores are standard eh? In Europe, some of the cores do NOT have the customary 1" hole (male or female) but instead have a 9mm hole with a drive-dog pin hole too.
I've never seen cores like that, and I've run a lot of prints that have been brought in from strange places. Do you know who uses them?
The Phoenix Cinema, East Finchley has three hand rewind benches, a 9mm or 3/8" one for projector spools mainly used for adverts and trailers, a 1/2" one for 6k spools, used for making up prints for transfer to tower spools, and a 5/16" one for 16mm, not much used now, but can also be used with a plate to spool off a 35mm print from American transit reels onto cores, from which they can then be put on one of the other benches to be spooled up.
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