old switch

[maguire]

View media item 29444 any idea how old this is
DM

 

[bernardgreen]

Too young for the Antiques Roadshow..

At a guess 1950 or there abouts

 

[maguire]

the metal backbox appears to be open ended at the bottom I think to accomodate a second switch it also seems to be screwed onto conduit at the top it's all rather chunky looks like cast iron and 50's makes sense as it,s not in the original part of the hotel but from the ammount of sooty stuff that I had to chisel out to accomodate a galvy tin box i think a chimney must have been removed
DM

 

[JohnD]

could be 1920's or 1930s

the switch looks as if the ceramic block has been shaped to fit a round box

 

[maguire]

this is how I resolved it
View media item 29448I have plastered the bottom since

 

[ban-all-sheds]

Why did you need a blanking plate?

 

[maguire]

Because it would have meant ripping out the steel conduit all the way to the ceiling the blank covers the original switch aperture and the new switch sits in a box below I extended the cable to reach
DM

 

[sparkwright]

Size 6 screws would fit the blanking plate better, but no one uses them much now I suppose.

Out of interest, did you have to re-use the old wiring?

 

[maguire]

I stripped back the perished rubber and slid on sleeve as far as I could i managed an IR on it and it was well within spec at 875.2 Mohms as it only runs two strip florrys after the break I will be rewiring the complete circuit I didn't want to make a mess of the place as it's laid out for hogmany bash
DM