Quote from: Sir Henry on October 26, 2023, 04:46:06 PMThe house used to be a Home for disable adults, so it had Safety Features.
1)There's the main wiring for the house at 240v. Though because every room has a shutoff switch (for all the electrics in the room) outside the room and a test circuit, the switches have as many as 9 wires going into each one.
2) The fire alarm and sensors are all wired up in a 12v circuit throughout the house. When we first lit the wood stove, alarms were going off in places no-one had been for over 20 years!
3) The best of all. All the internal doors are fire doors but as it was residential they were open all the time. This was done with an electromagnet attached to the wall behind every door and a metal disk attached to the back of every door. When the fire alarm went off it cut power to the magnets and all the doors would close thanks to the strong door-closing mechanism on each one.
This was a 96v circuit.
What happens when you leave all the doors magnetically left open for 2 years while the place is empty, I hear you ask. Glad you asked. Several of the magnets were hot to the touch when we moved in and every single door frame had needed to be reset as they had all been pulled out of square. And it turns out that you can fill the large gaps this creates with baby wipes. Loads and loads of baby wipes.
Best of luck with yours.
Quote from: RJBowman on May 02, 2024, 06:13:51 PMQuote from: J. Wilhelm on April 30, 2024, 11:36:00 PM...it's not clear if anyone at all still holds the patent for it, or if it's name "Saccharine" is itself a registered active trademark.
The name doesn't seem to be trademarked, but saccharin does have an official web site:
https://saccharin.org/
It appears to belong to an industry group.
Quote from: von Corax on May 02, 2024, 08:09:01 PMAs far as I can tell from TSOATAK, the term "saccharin" by itself has never been trademarked.
Quote from: J. Wilhelm on April 30, 2024, 11:36:00 PM...it's not clear if anyone at all still holds the patent for it, or if it's name "Saccharine" is itself a registered active trademark.