Anyone know what this is?

[TheBiscuits]

Found this stuck to a skip - the centre is quite a strong magnet - and wondered what it is.  

 

It's a CRT skip so could be a boat engine bit, but I don't recognise it.

 

Over to the clever people ...

 

 

[Alan de Enfield]

Housing for an Electromagnetic clutch - you pull a button / switch, it switches on / off the electromagnet and allows the clutch to engage.

 

Found on ride on mowers and similar equipment to engage / disengage drive.

 

 

 

How it works – Electromagnetic tooth clutches operate via an electric actuation but transmit torque mechanically. When current flows through the clutch coil, the coil becomes an electromagnet and produces magnetic lines of flux. ... When current is removed from the clutch field, the armature is free to turn with the shaft.

 

Electromagnetic clutch - Wikipedia

Edited September 21, 2021 by Alan de Enfield

[Tracy D'arth]

Its the magnet off the back of a PM loudspeaker, the anvil  in the centre  goes through the speech coil.

[Hudds Lad]

Its a Limpet Obfuscator, very popular in the 1930’s, nice to see it still works  

[Tracy D'arth]

31 minutes ago, Alan de Enfield said:

Housing for an Electromagnetic clutch - you pull a button / switch, it switches on / off the electromagnet and allows the clutch to engage.

 

Found on ride on mowers and similar equipment to engage / disengage drive.

 

 

 

How it works – Electromagnetic tooth clutches operate via an electric actuation but transmit torque mechanically. When current flows through the clutch coil, the coil becomes an electromagnet and produces magnetic lines of flux. ... When current is removed from the clutch field, the armature is free to turn with the shaft.

 

Electromagnetic clutch - Wikipedia

Sorry, its not that AdeE.

[mrsmelly]

Its a reciprocating waffle sprocket.

[Jerra]

Its a wingwang for a goose's bridle.

[David Mack]

17 minutes ago, mrsmelly said:

Its a reciprocating waffle sprocket.

 

15 minutes ago, Jerra said:

Its a wingwang for a goose's bridle.

 

[Alan de Enfield]

22 minutes ago, Tracy D'arth said:

Sorry, its not that AdeE.

 

Ok - what is it ?

 

It looks very similar to the ones we had on the Toro Greens Mower, (but without the wiring, mounting bracket and pulley).

[Mad Harold]

Could it be the spinning part of an old magneto?

The sort that was on stationary engines.

[Mike Tee]

Part of an old alarm bell?

[beerbeerbeerbeerbeer]

What would I know…but how about if the magnet was for collecting metal particles like you get on sump plugs?

The whole thing looks like it screws on and off. Maybe held a filter?

 

and the small hole down the centre was for a long locking nut

Edited September 21, 2021 by Goliath

[pete.i]

[Sea Dog]

My advice? Put it back in the skip. Whatever it is, it's broken - that's why it was in there.

 

(It's a skip, so there'll be a mattress in there shortly too - that won't be worth having either)

[cuthound]

3 hours ago, Tracy D'arth said:

Its the magnet off the back of a PM loudspeaker, the anvil  in the centre  goes through the speech coil.

 

I agree. Magnet for a speaker.

[TheBiscuits]

4 hours ago, Tracy D'arth said:

Its the magnet off the back of a PM loudspeaker, the anvil  in the centre  goes through the speech coil.

 

1 hour ago, pete.i said:

 

57 minutes ago, cuthound said:

 

I agree. Magnet for a speaker.

 

Right, I'm convinced.  Thanks clever people.

 

For all the less clever contributors, I'm willing to sell a very rare classic obfuscating wingwang sprocket for only one hundred pounds plus p&p to anyone daft enough to bite ...

 

... and if that fails I'll put it back in the skip as @Sea Dog suggested.  There won't be room for the mattress as a 3-piece suite turned up in the skip overnight!

[TheBiscuits]

3 hours ago, Goliath said:

What would I know…but how about if the magnet was for collecting metal particles like you get on sump plugs?

The whole thing looks like it screws on and off. Maybe held a filter?

 

and the small hole down the centre was for a long locking nut

 

I did wonder much the same, which is why I picked it up and asked what it is.  

[Sea Dog]

17 hours ago, TheBiscuits said:

... and if that fails I'll put it back in the skip as @Sea Dog suggested.  There won't be room for the mattress as a 3-piece suite turned up in the skip overnight!

Move fast! The law says a skip cannot be moved until there is a mattress or a sofa on the top, after which it could be taken at any time without warning.

[Alan de Enfield]

10 minutes ago, Sea Dog said:

Move fast! The law says a skip cannot be moved until there is a mattress or a sofa on the top, after which it could be taken at any time without warning.

 

 

I don't believe it ............................

 

 

 

[matty40s]

18 hours ago, TheBiscuits said:

 

 

... and if that fails I'll put it back in the skip as @Sea Dog suggested.  There won't be room for the mattress as a 3-piece suite turned up in the skip overnight!

Just stick it on an unsuspecting passing boat.😁

[Troyboy]

19 hours ago, Sea Dog said:

My advice? Put it back in the skip. Whatever it is, it's broken - that's why it was in there.

 

(It's a skip, so there'll be a mattress in there shortly too - that won't be worth having either)

Plus bags of shit from the boaters with 'composting' toilets.