User avatar
KnightFox
Registered User
Registered User
Posts: 238
Joined: Thu May 18, 2006 3:05 pm
Location: La Vale, MD

T-bolt horn angle

Sun May 21, 2006 8:38 am

I've seen pictures and movies of T-bolts on top of buildings and their horns are angled a bit downwards rather than at the usuall 90 degrees. Can someone tell me how that is done?

User avatar
SirenMadness
Registered User
Registered User
Posts: 3746
Joined: Mon May 15, 2006 2:47 pm
Location: Windsor, Ontario
Contact: Website

Sun May 21, 2006 12:15 pm

I think you're seeing the entire siren head at an angle. The winds cause the horn and rotor assembly to slightly tilt upwards.
~ Peter Radanovic

User avatar
KnightFox
Registered User
Registered User
Posts: 238
Joined: Thu May 18, 2006 3:05 pm
Location: La Vale, MD

Sun May 21, 2006 3:53 pm

Really doesn't answer what I was talking about.

Look at this T-bolt's horn:
http://www.longislandfirealarm.com/Mineola1800.wmv

It's angled so it points downwards a bit.

User avatar
Trey
Registered User
Registered User
Posts: 1464
Joined: Tue May 16, 2006 3:14 am
YouTube Username: SD10s4ever
Location: Slaton, TX
Contact: YouTube

Sun May 21, 2006 5:11 pm

I know what your talking about. I'm not sure as to why either, but perhaps from looking at this ad, maybe they were originally made like this? :?
Image

User avatar
SirenMadness
Registered User
Registered User
Posts: 3746
Joined: Mon May 15, 2006 2:47 pm
Location: Windsor, Ontario
Contact: Website

Sun May 21, 2006 5:30 pm

It's due to the horn-support bars. But I don't know the purpose.
~ Peter Radanovic

CABLEVision
Registered User
Registered User
Posts: 550
Joined: Mon May 15, 2006 11:06 pm
Location: California USA

Sun May 21, 2006 7:13 pm

Those were the early thunderbolts I belive.

User avatar
KnightFox
Registered User
Registered User
Posts: 238
Joined: Thu May 18, 2006 3:05 pm
Location: La Vale, MD

Sun May 21, 2006 11:54 pm

Wow, a T-bolt with rounded covers for the Blower and rotator. I bet they wern't made for the simple fact it was cheaper and easier to just make a regular box.

User avatar
The Big Labowski
Registered User
Registered User
Posts: 115
Joined: Mon May 15, 2006 9:47 pm
Location: chicago 'burbs

Mon May 22, 2006 12:32 am

lets go with the most obvious and plausible answer here. all of the angled hornes i've seen a relatively high moutings. they must have bent the horn down a little bit using machinery. its not that hard to do. they probably wanted the sound angled down a bit.
Bringing the joy of siren collecting to the chicago area and more!

User avatar
KnightFox
Registered User
Registered User
Posts: 238
Joined: Thu May 18, 2006 3:05 pm
Location: La Vale, MD

Mon May 22, 2006 12:40 am

I know they're mounted in High places and why they bend them down (so the sound doesn't shoot over the public's heads) but my question was how?

I figured in had to do something with the braces, supports, etc that hold the end of the horn.

User avatar
SirenMadness
Registered User
Registered User
Posts: 3746
Joined: Mon May 15, 2006 2:47 pm
Location: Windsor, Ontario
Contact: Website

Mon May 22, 2006 12:43 am

I think they moved the supports backwards on the motor housing.
~ Peter Radanovic

Return to “Main Outdoor Warning Sirens Board”

Who is online

Users browsing this forum: Ahrefs [Bot] and 69 guests