Andy Hall wrote in message . ..

You could also get plugs that would fit a bayonet light socket and
then a Y-shaped adaptor for it and the bulb

At one time, these were popular as a way to connect the iron.

No earth of course......

yep, those were still being sold till, what, 70 or 71. Used long after
of course. They gave the added features of:

* a dangling cord to run into (sometimes the plugs were held by
string)
* flex draping over the lightbulb
* lots of mechanical loading on the light fitting flex, which of
course often had no effective cord grip
* making sure the user would regularly handle the live perished rubber
cord on the light socket
* and when you did get caught up in the wires, while standing on a
chair and reaching up, you'd pull on the whole thing, the light would
go out, and youd grab hold of the hot bulb to try to steady yourself
in the sudden darkness.

Other than that they were quite a clever idea.

Regards, NT