Understanding plate on GEC rubber blade fan - HELP!

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Post by scavo on April 19th 2012, 10:14 pm

Understanding plate on GEC rubber blade fan - HELP! DSCN1756
Understanding plate on GEC rubber blade fan - HELP! DSCN1755
Other than the electrical info what does the M/C No. mean?
Patent offoce search returns no results.
Understanding plate on GEC rubber blade fan - HELP! DSCN1757
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Post by Nic on April 19th 2012, 10:28 pm

M/C = Model/Colour, perhaps?
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Post by Davee on April 20th 2012, 7:58 am

Usually within engineering m/c usually stands for machine, but i'm guessing Nic could be correct on this as the number is split into 2 codes.

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Post by scavo on April 20th 2012, 8:05 am

I was thinking the same as both of you. I was hoping we might get an exGEC employee to say for sure. I used to live next-door to a GEC plant and knew people who worked there in the 60s, but have lost contact with my old neighbours.

It would also be great if I could get any guidance with the patent office website for old regd. designs.
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Post by Nic on April 20th 2012, 8:18 am

Davee wrote:Usually within engineering m/c usually stands for machine, but i'm guessing Nic could be correct on this as the number is split into 2 codes.

Aye, usually with domestic wares M/C is Model/Colour - at least with furniture, lighting, glass, etc...

The BS (British Standards) number also gives a minimum date of production - BS 380:1958, to do with the performance of electric desk fans, was laid down in 1958 (as the number may suggest).

So the fan was produced on or after 1958.
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Post by dantheman on April 20th 2012, 8:21 am

this is very useful info thanks Excellent

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Post by Nic on April 20th 2012, 8:24 am

http://www.ipo.gov.uk/types/patent/p-about/p-whatis/p-oldnumbers/p-oldnumbers-1916.htm

And was patented in 1954.
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Post by scavo on April 20th 2012, 8:38 am

D'oh! missed the glaringly obvious 1958 British Standard.
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Post by scavo on April 20th 2012, 8:50 am

info from Patent Office: 1953 GB687841 1954 GB704741

So the patent was registered in 1953
British Standard Regd 1958

This is excellent help guys.
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Post by Nic on April 20th 2012, 9:48 am

Oops, I did mean 1953, not '54 - silly butterfingers.
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Post by scavo on April 20th 2012, 2:47 pm

Just put a plug on it. It works! but is rather noisy and it moves about - yes, I know it is supposed to 'sweep', but it actually vibrates SO much it moves along the sideboard!

I think rewire, new bearings and possibly new rubber feet. I'm assuming it has a race bearing in there somewhere? Has anyone taken one of these apart before?

I've located braided 3 core flex on ebay. I know a little engineering shop that sells every size of race bearing under the sun and new rubber feet should be relatively easy.
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Post by tenpot on April 20th 2012, 4:40 pm

looks like it might have been bolted /screwed down maybe on a larger base
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Post by scavo on April 20th 2012, 5:01 pm

It is made so it can be desk standing or bolted to the wall.

It's an engineered piece of kit.

I think the problem is that there is play in the anchoring points of the motor or there is some kind of race bearing that is worn out.

The other thing is the rubber feet (not shown in the photo because I was showing the plate) are polished with time rather than being slightly sticky. If I can't find replacement rubber feet I will use some rubber restoring solvent.
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