Switches - a request for information

[Bonnex]

The photograph shows three variations of the No 5 pressure switch (standard, automatic, delayed automatic). If readers have any unusual British switches, photographs or written documentation on switches outside the regular issued range (Nos 1 to 16) I would be very pleased to hear about it. The information would be used in support of historical research.

Only, or likely, British/Commonwealth please.

Many thanks,

 

[TimG]

Norman,

Whilst I'm familiar with the standard No. 5, the other two are new to me. What is meant by "Automatic" and "Delayed, Automatic"?

Regards

Tim.

 

[TimG]

Norman,

What appears to be an Instructional No. 6 and plan and elevation views of an unknown switch body. The countersunk hole is threaded.

Regards

Tim.

 

[Bonnex]

Unknown Switch Body

Many thanks Tim, just the sort of variation that I am interested in. I have no idea what it is but I will file it until an ID is forthcoming.

 

[sgtlynn]

Correct me where I am wrong, but isn't that the centre piece of a No. 5 pressure switch??

 

[MCLMM]

Correct me where I am wrong, but isn't that the centre piece of a No. 5 pressure switch??

It is. I was showing one exactly like it to a Z Special Unit Veteran this afternoon.

 

[TimG]

Daryll, MCLMM,

Thanks. I'd been sorting through a selection of switches (No No.5s) and seeing the 'centre piece' out of context, I thought I'd found a hitherto unidentified switch - alas not.

Regards.

Tim. G.

 

[Bonnex]

No 5

Blush. Many thanks Darryl. You know when something looks familiar but...

 

[sgtlynn]

I know what you mean, I looked at it and said "I've seen that before" Took a while for the wheels to get up to speed but they finally clicked:xd: