Misplaced Pages

Federal Signal 3T22: Difference between revisions

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
Browse history interactively← Previous editContent deleted Content addedVisualWikitext
Revision as of 05:21, 26 February 2015 edit2601:6:3c81:470:747f:1d89:7bbf:f24d (talk) →External links← Previous edit Latest revision as of 23:17, 6 December 2024 edit undo76.97.219.243 (talk)No edit summary 
(440 intermediate revisions by more than 100 users not shown)
Line 1: Line 1:
{{Short description|Warning siren}}
{{merge|Federal Signal Corporation|discuss=Talk:Federal Signal 3T22#Proposed merge with Federal Signal Corporation|date=February 2015}}
{{notability|date=February 2015}} {{more citations needed|date=March 2022}}
{{unreferenced|date=February 2015}}
]


]
⚫ The '''Federal Signal 3T22''' is an outdoor warning siren made by ] (formerly Federal Sign and Signal Corporation) from 1952 through the early 1990s. It has a very recognizable design, having a ten-port rotor (chopper) on the bottom with ten cones (horns) and a 12-port one on top with twelve cones.

⚫ The '''Federal Signal 3T22''' and '''2T22''' are dual-tone, mechanical ] made by ] (formerly Federal Sign and Signal Corporation) from 1952 through the early 1990s. Both have a very recognizable design, with a ten-port rotor (chopper) on the bottom with ten cones (horns) and a 12-port one on top with twelve cones.


==History== ==History==
The Federal Signal 3T22 was originally designed as the 2T22 in 1952 or 1954. The 2T22 had the same number of ports and cones. It could produce two signals, hence the name "2T22" (the 22 representing the 22 cones and horns). The siren had no solenoids, so it could not perform a "hi-lo" signal. In 1955, Federal designed the 3T22, which was similar, except for its name and that it had solenoids. The 3T22 was superior in design because it could perform the "hi-lo" signal, which is mainly used for fire calls. The 2T22 and 3T22 could produce 113db. There are four models of this type of siren. the 2T22 A and B and the 3T22 A and B. The 3T22's name means this: the 3 stands for its three signals: attack (wail), alert (steady), and hi-lo, and the 22 again stands for the twenty-two cones. The siren was mainly used for air raid warnings during the ] era and weather warnings after the war. In the early 1990s, the siren's production was stopped when it was replaced with the newer 2001-130, which could reach 130db, hence the name. Like many other older siren models, these sirens are becoming more uncommon due to their age and because of newer technology. The Federal Signal 3T22 was originally designed as the 2T22 in 1952 or 1954. The 2T22 has the same number of ports and cones. It can produce two main signals (it can produce more but the other signals are rarely used), hence the name "2T22" (the 2 at front representing the 2 choppers, and the 22 representing the amount of horns). The siren has no solenoids, so it cannot perform a "hi-lo" signal. In 1955, Federal designed the 3T22, which is similar, except for its name and that it has solenoids. The 3T22 is superior in design because it can perform the "hi-lo" signal, which is mainly used for fire calls. The 2T22 and 3T22 can produce 113db (measured 100 feet away from the siren). There are four models of this type of siren. the 2T22 A and B and the 3T22 A and B. In the name 3T22, the 3 stands for its three main signals: attack (wail), alert (steady), and hi-lo, and the 22 again stands for the twenty-two cones. The A or B determines whether the motor is three phase or single phase. A 3T22A is three phase, while a 3T22B is single phase. The siren was mainly used for air raid warnings during the ] era and weather warnings after the war. In the early 1990s, the siren's production was stopped when it was replaced with the newer 2001-SRN, which can reach 126db (also measured 100 feet away), hence the name. Like many other older siren models, these sirens are becoming more uncommon due to their age and because of newer technology.


==Design== ==Design==
The 3T22 came in only one port ratio: 10/12. It had ten ports and cones on the bottom and twelve ports and cones on the top. It also had a smaller cone on top to reduce rain and other water-related substances such as snow from getting inside. It had two solenoid boxes, one on top, and one on the bottom. There were also two air intake spots: also one on the top and bottom. The siren had a small stand with three legs so it could be mounted on a pole or roof. The 3T22 came in only one port ratio: 10/12. It has ten ports and cones on the bottom and twelve ports and cones on the top. It also has a smaller cone on top to reduce rain and other water-related substances such as snow from getting inside. It has two solenoid boxes, one on top, and one on the bottom. There are also two air intake spots: also one on the top and bottom. The siren has a small stand with three legs so it can be mounted on a pole or roof. The stand can be removed and the siren can be mounted differently.

==References==
{{Reflist}}
http://civildefensemuseum.com/sirens/manuals/255A152H-2T22-3T22.pdf


==External links== ==External links==
Line 19: Line 23:
* *
* *
*

*
*
{{Civil defense sirens}}


] ]
]
]
]

Latest revision as of 23:17, 6 December 2024

Warning siren
This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.
Find sources: "Federal Signal 3T22" – news · newspapers · books · scholar · JSTOR (March 2022) (Learn how and when to remove this message)
A Federal Signal 2T22 siren.

The Federal Signal 3T22 and 2T22 are dual-tone, mechanical outdoor warning sirens made by Federal Signal Corporation (formerly Federal Sign and Signal Corporation) from 1952 through the early 1990s. Both have a very recognizable design, with a ten-port rotor (chopper) on the bottom with ten cones (horns) and a 12-port one on top with twelve cones.

History

The Federal Signal 3T22 was originally designed as the 2T22 in 1952 or 1954. The 2T22 has the same number of ports and cones. It can produce two main signals (it can produce more but the other signals are rarely used), hence the name "2T22" (the 2 at front representing the 2 choppers, and the 22 representing the amount of horns). The siren has no solenoids, so it cannot perform a "hi-lo" signal. In 1955, Federal designed the 3T22, which is similar, except for its name and that it has solenoids. The 3T22 is superior in design because it can perform the "hi-lo" signal, which is mainly used for fire calls. The 2T22 and 3T22 can produce 113db (measured 100 feet away from the siren). There are four models of this type of siren. the 2T22 A and B and the 3T22 A and B. In the name 3T22, the 3 stands for its three main signals: attack (wail), alert (steady), and hi-lo, and the 22 again stands for the twenty-two cones. The A or B determines whether the motor is three phase or single phase. A 3T22A is three phase, while a 3T22B is single phase. The siren was mainly used for air raid warnings during the Cold War era and weather warnings after the war. In the early 1990s, the siren's production was stopped when it was replaced with the newer 2001-SRN, which can reach 126db (also measured 100 feet away), hence the name. Like many other older siren models, these sirens are becoming more uncommon due to their age and because of newer technology.

Design

The 3T22 came in only one port ratio: 10/12. It has ten ports and cones on the bottom and twelve ports and cones on the top. It also has a smaller cone on top to reduce rain and other water-related substances such as snow from getting inside. It has two solenoid boxes, one on top, and one on the bottom. There are also two air intake spots: also one on the top and bottom. The siren has a small stand with three legs so it can be mounted on a pole or roof. The stand can be removed and the siren can be mounted differently.

References

http://civildefensemuseum.com/sirens/manuals/255A152H-2T22-3T22.pdf

External links

Civil defense sirens
Federal Signal
ATI
ACA
Other
Categories: