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Old 30th Apr 2022, 6:36 pm   #1
Gabe001
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Default Vintage Revo fan

Just wondering if I could pick your brains

I've acquired a Revo fan similar to the one in the picture just to work on as an easy project with the swmbo.

It looks to be all there, but the tape wrapped around the motor coils? is flaking off in some areas (see picture)

What's the best thing to use as a replacement? I dont think normal electrical insulating tape will last, although I could always secure it further with a dab of epoxy. Any better ideas?

Alternatively I could leave as is.

Thanks
Gabriel
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Old 30th Apr 2022, 7:03 pm   #2
Lucien Nunes
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Default Re: Vintage Revo fan

I would be wary of disturbing the coils too much as the important parts of the insulation (the ones you can't see) could easily be damaged. If the insulation is suspect I would look at soaking in a suitable insulating varnish such as Glyptal 1209.

Is that second pic your motor? Does it work? It looks heat-damaged.
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Old 30th Apr 2022, 7:33 pm   #3
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Default Re: Vintage Revo fan

Yes the second is mine. I haven't tried it yet, but it measures 103 ohms between live and neutral so at least it's not open.
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Old 1st May 2022, 8:28 am   #4
Phil G4SPZ
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Default Re: Vintage Revo fan

I would be very wary of powering this straight off the mains until you have checked the insulation resistance between the windings and the metalwork at 500 volts DC. If your fan has a 2-core flex, like the one in the picture, it certainly won’t meet current standards for Class II or ‘double insulated’ status. If it checks out okay, it would be wise to fit an RCD plug.

Good luck with it, it looks great! Revo were in Tipton, near Dudley.
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Old 1st May 2022, 2:34 pm   #5
Gabe001
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Default Re: Vintage Revo fan

Thank you for your comments. It'll be a decorative peace really, I'm just happy knowing that it works. I don't really intend to use it and I'm also not fully comfortable with the 2 core lead. If I can find somewhere to bolt on a mains earth I'll add one.

The dilemma at the moment is that I want to respray the body black, whilst my wife wants to keep it original and vintage.

Gabriel
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Old 7th May 2022, 6:14 am   #6
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Default Re: Vintage Revo fan

This is it. It was relavely straightforward to do in the end.

I can't check the insulation at 500dc but I found a convenient unused bolt in the base for an earth which I've added, so that all the metalwork is now earthed and a 3 core twisty vintage style cable is now used.

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Old 7th May 2022, 6:33 am   #7
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Default Re: Vintage Revo fan

Excellent! Well done, it looks great.
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Old 7th May 2022, 6:38 pm   #8
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Default Re: Vintage Revo fan

Fantastic! Now that our cat has grown wings i could probably get away with having one of those at a suitable height off the deck.

If you WERE to use it it might also be feasible to graft a one-shot thermal fuse to the motor, like the ones you find in modern fans.

For insulation checking on these sorts of things it's well worth investing in a tester- some of the venerable hand-cranked ones from Megger push out 500v and they are quite cheap on ebay- and there's no batteries to rot. If you buy two the chances are that one of them will be fine....or repairable at the least.

Dave
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Old 7th May 2022, 6:53 pm   #9
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Smile Re: Vintage Revo fan

Hi,
I remember the 'Revo' name from the lamp posts in our street as a lad. It was marked on the access covers of the concrete posts. I presume they also made the lanterns as well.
Cheers, Pete.
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Old 7th May 2022, 7:12 pm   #10
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Default Re: Vintage Revo fan

Correction to post No.8- For 'Megger' read 'Evershed & Vignoles'. The instruments i refer to are colloquially called Wee Meggers.
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Old 7th May 2022, 9:01 pm   #11
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Default Re: Vintage Revo fan

It’s a nice classic example of an historical fan. However, it prompts an observation on our specialist territory: we contribute great effort and expertise into the electrical safety of an appliance which, with one false move, is capable of chopping your fingers off. Mechanical safety is just as important as electrical safety!

Martin
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Old 7th May 2022, 9:26 pm   #12
Phil G4SPZ
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Default Re: Vintage Revo fan

Martin, what a very apt observation! What you say is absolutely true. However, society was different back then. If you were stupid enough to put your fingers into the whirring blades of a fan and your fingers got chopped off, it was your own fault. Common sense still existed in those days, and no-one would have dreamed of doing such a daft thing, would they? Product liability and claims litigation were things that had not yet reached us from America.
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Old 7th May 2022, 9:30 pm   #13
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Default Re: Vintage Revo fan

Quote:
Originally Posted by Phil G4SPZ View Post
If it checks out okay, it would be wise to fit an RCD plug.
Pointless if the circuit is already RCD protected at the CU.
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Old 7th May 2022, 9:32 pm   #14
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Default Re: Vintage Revo fan

Indeed, it probably can. The mechanical safety provided by the cage is laughable.

I'll stick to my radios and amps, but this was a welcome diversion whilst we were both at home recovering from Covid.

Maybe I'll try a telephone next
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Old 7th May 2022, 10:09 pm   #15
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Default Re: Vintage Revo fan

It looks great! I have a nice GEC fan here, which would happily eat your fingers for a light snack… the motor on mine runs quite hot, so I don’t tend to use it for long, I keep a cheap plastic one for that, which itself is probably 25+ years old!

Regards
Lloyd
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Old 8th May 2022, 10:51 am   #16
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Default Re: Vintage Revo fan

Quote:
Originally Posted by winston_1 View Post
Quote:
Originally Posted by Phil G4SPZ View Post
If it checks out okay, it would be wise to fit an RCD plug.
Pointless if the circuit is already RCD protected at the CU.
But still worth doing. A vintage fan could well be used in an older installation location!

And potentially less of a litigious nightmare than the added earthing which would count as a modification
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Old 8th May 2022, 10:56 am   #17
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Default Re: Vintage Revo fan

Quote:
Originally Posted by Tractorfan View Post
Hi,
I remember the 'Revo' name from the lamp posts in our street as a lad. It was marked on the access covers of the concrete posts. I presume they also made the lanterns as well.
Cheers, Pete.
Had the lamp post division and the fan division talked to each other they could have been early into the wind generator market.
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Old 8th May 2022, 12:46 pm   #18
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Default Re: Vintage Revo fan

The guard, such as it is, is unevenly placed.. are those stylish radial pieces able to move around the perimeter ring?
Dave
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Old 8th May 2022, 8:59 pm   #19
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Default Re: Vintage Revo fan

Quote:
Originally Posted by Gabe001 View Post
Maybe I'll try a telephone next
Try a GPO 150 candlestick with bellset, it's fun overhauling it but finding certain parts could take a year to obtain.
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Old 8th May 2022, 9:08 pm   #20
Gabe001
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Quote:
Originally Posted by The Philpott View Post
The guard, such as it is, is unevenly placed.. are those stylish radial pieces able to move around the perimeter ring?
Dave
Yes they can be moved easily
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