Category:Hand Powered: Difference between revisions

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(Created page with "While most sirens today are either electronic or electromechanical, this is not always feasible, especially in areas with a lack of available electricity. These areas may still need a way to warn the public of danger, so hand cranked sirens were created to fulfill this purpose. These sirens are usually a bare rotor and stator with a crank on the rear to operate the siren, very often with hand guards on the intake and stator ports to prevent injury, as well as with a stan...")
 
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While most sirens today are either electronic or electromechanical, this is not always feasible, especially in areas with a lack of available electricity. These areas may still need a way to warn the public of danger, so hand cranked sirens were created to fulfill this purpose. These sirens are usually a bare rotor and stator with a crank on the rear to operate the siren, very often with hand guards on the intake and stator ports to prevent injury, as well as with a stand to mount on a flat surface. These sirens are often portable, and use a gear mechanism which allows the rotor to spin much faster than the crank without injuring the operator. With electricity being so readily available today, hand-cranked sirens are typically relegated to poorer countries or very rural areas and are often sold by Chinese manufacturers.
While most sirens today are either electronic or electromechanical, this is not always feasible, especially in areas with a lack of available electricity. These areas may still need a way to warn the public of danger, so hand cranked sirens were created to fulfill this purpose. These sirens are usually a bare rotor and stator with a crank on the rear to operate the siren, very often with hand guards on the intake and stator ports to prevent injury, as well as with a stand to mount on a flat surface. These sirens are often portable, and use a gear mechanism which allows the rotor to spin much faster than the crank without injuring the operator. With electricity being so readily available today, hand-cranked sirens are typically relegated to poorer countries or very rural areas and are often sold by Chinese manufacturers.
This category includes both articles on hand-cranked sirens as well as the companies that make/made them.

Latest revision as of 20:43, 14 August 2024

While most sirens today are either electronic or electromechanical, this is not always feasible, especially in areas with a lack of available electricity. These areas may still need a way to warn the public of danger, so hand cranked sirens were created to fulfill this purpose. These sirens are usually a bare rotor and stator with a crank on the rear to operate the siren, very often with hand guards on the intake and stator ports to prevent injury, as well as with a stand to mount on a flat surface. These sirens are often portable, and use a gear mechanism which allows the rotor to spin much faster than the crank without injuring the operator. With electricity being so readily available today, hand-cranked sirens are typically relegated to poorer countries or very rural areas and are often sold by Chinese manufacturers.

This category includes both articles on hand-cranked sirens as well as the companies that make/made them.