Just when I think I’ve seen every type of security device available, something new shows up. This is for a current project in New York City. The Johnson Security Lock has a cylinder on the outside of the door and a chain that wraps around the crossbar of the panic hardware on the inside. This isn’t how I would handle this, but it’s in the facility standards.
Have you seen this before? If yes, is it still available, and from where?
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I have seen something similar for emergency garage door release. It is a cable controlled by a key. Google garage door emergence. release.
Do you have an operational description of this opening assembly? Can’t seem to wrap my head around the chain.
Hi Lach –
What I was told is that the key cylinder on the outside somehow controls the chain which actuates the crossbar of the panic. Kind of like the chain is dogging the device.
– Lori
The standards need to be upgraded if they have that product in them……
That’s what I said! 🙂
– Lori
Hey Lori, it looks like the chain releases – or becomes slack – when you turn the cylinder on outside. Is that how it works?
Nice life safety slide on what NOT to do for life safety. Owner would probably argue that is not an exit and so the can do whatever they want.
I wonder if Johnson Security Lock Co, is a forerunner to Glynn-Johnson. Are there any company historians that could help you out?
Hi Terry –
I don’t think they are related.
– Lori
From “The Builders Hardware Industry 1830s to 1990s” edited by Walter H. Aninch, DAHC, pg. 38*:
1923 The company was founded by Fred Glynn and Elvin ‘E.H.’ Johnson. Mr. Glynn had been a sales representative for the Grand Specialties Co. Mr. Johnson had been a traveling auditor for the accounting firm of Price Waterhouse. While their paths crossed prior to the formation of the company, a chance meeting on a street in Chicago opened the door to the formation of the Glynn Johnson Company.
*much more information on Glynn-Johnson can be found in the above cited volume, no connection whatever with Johnson Security Lock Co. is noted
INTERESTING!!
– Lori
Long obsolete I’m sure, reminiscent in a way; to the old Fox Police Lock, see link:
https://www.nytimes.com/2008/04/27/nyregion/thecity/27lock.html
Strangely the second drawing says the bar is EO and yet shows a trim. Can anybody enlighten me how this device does anything which a good trim could not do? Both open the door with a key. So why the Rube Goldberg??
If this device works like a garage door emergency release, the entire cylinder comes out when you turn the key, permitting you to pull on the cable. I guess that would permit you to depress the panic bar from outside.
any photographs of existing installations???
Or when you get some can you post them.