Who first invented barrier blocks and when? - Page 1
Forum section: electronics / general

author: DavideAndrea
author_rank: Contributor
timestamp: June 22, 2023, 08:55:23 pm
content: I get the sense that the Buchanan Construction Company made the first barrier blocks but I can't get much info on that. Ideal bought Buchanan and that history seems to be lost. Also, TE sells barrier blocks under the "Buchanan" name.Or maybe Cinch Jones did. Their 1959 catalog lists them.So I am asking for leads from this community.In case it's unclear, these are barrier blocks:.And thesehttps://cdn11.bigcommerce.com/s-tnsp6i3ma6/images/stencil/original/products/5153/23713/605155__44715.1594319583.jpg?c=2are not: they're terminal blocks.(This is for a book I'm writing.)

author: Stray Electron
author_rank: Super Contributor
timestamp: June 22, 2023, 09:54:39 pm
content: I don't have time to chase this down at the moment but if I understand what you're referring to as barrier blocks, then my USMC M38A1 jeep has them and it was built in 1953. It's not a standard Jeep, it was built as a Forward Air Controller's vehicle and was packed full of radios and all of the necessary wiring.

author: Sal Ammoniac
author_rank: Super Contributor
timestamp: June 22, 2023, 10:16:52 pm
content: What's a barrier block?

author: Benta
author_rank: Super Contributor
timestamp: June 22, 2023, 10:24:24 pm
content: Seems to be useful in Minecraft.

author: DavideAndrea
author_rank: Contributor
timestamp: June 22, 2023, 10:25:02 pm
content: > What's a barrier block?This is a barrier block:https://i.ebayimg.com/images/g/2ScAAOSwOIxcwX6J/s-l960.webp

author: Shock
author_rank: Super Contributor
timestamp: June 22, 2023, 10:29:32 pm
content: It's an open screw terminal block with a bit of isolation (typically plastic molding) between terminals.

author: Sal Ammoniac
author_rank: Super Contributor
timestamp: June 22, 2023, 10:49:39 pm
content: Quote from: DavideAndrea on June 22, 2023, 10:25:02 pmThanks. When the OP mentioned "Buchanan Construction Company" I was expecting something to do with building construction, not the things used in wiring.

author: DavideAndrea
author_rank: Contributor
timestamp: June 22, 2023, 11:47:56 pm
content: Quote from: Stray Electron on June 22, 2023, 09:54:39 pmI asked my uncle, who has a 1950's Willys, and he sent me this picture:

author: Stray Electron
author_rank: Super Contributor
timestamp: June 23, 2023, 12:42:17 am
content: DavideAndrea, My ad blocker (or something) is blocking your picture so I don't know what your point is. But I'm pretty certain there were no barrier blocks that came standard in any of the old Jeeps. Between my father and I we've owned five of them made from 1944 to 1964 and I still have full sets of manuals for all of them. I went and got out the 1944 manual for the MB that we used to own and it does show that the wiring used ring terminals and screws in the ignition switch and so forth but I don't think there were any barrier blocks in them and there are none shown in the pictures in the manual. My '53, and all of the normal ones that I have seen, uses Douglas connectors and Canon plug style MS connectors for all of the standard equipment. My '53 only has the BBs because of the military radios systems that were added to it to convert it to a model AN/MRC-35A. I used to have pictures online of it and there is one other known example (in Iceland!) but all of the pictures seem to have disappeared. You can search for AN/MRC-35A and see if you can find any of themanypictures that used to be online. There are other similar (not 35As) MRC radio jeeps out there too. And I do have the manual here somewhere, I just need to find it!

author: DavideAndrea
author_rank: Contributor
timestamp: June 23, 2023, 01:08:23 am
content: Quote from: Stray Electron on June 23, 2023, 12:42:17 amDoes this link work?https://postimg.cc/GHn7FKxt

author: EPAIII
author_rank: Super Contributor
timestamp: June 27, 2023, 10:53:03 am
content: Talk about spark and sputter! That's enough to scare the heebie-jeebies out of me.Quote from: DavideAndrea on June 22, 2023, 11:47:56 pm