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2. Elisha Otis - Wikipedia

   en.wikipedia.org/wiki/Elisha_Otis

   Elisha Graves Otis (August 3, 1811 – April 8, 1861) was an American industrialist and founder of the Otis Elevator Company. [1] In 1853, he invented a safety device that prevents elevators from falling if the hoisting cable fails.

3. Otis Worldwide - Wikipedia

   en.wikipedia.org/wiki/Otis_Worldwide

   The company pioneered the development of the "safety elevator", invented by Elisha Otis in 1852, which used a special mechanism that locked the elevator car in place against hoisting rope failure. The Otis Elevator Company was acquired by United Technologies in 1976, but it was spun off as an independent company 44 years later in April 2020 as ...

4. Norton P. Otis - Wikipedia

   en.wikipedia.org/wiki/Norton_P._Otis

   Otis was born in Halifax, Vermont. His father was Elisha Otis , inventor of the safety elevator and a descendant of the Otis family that is counted among the Boston Brahmin families. He attended public schools in Halifax, Albany , Hudson , and Yonkers, New York .

5. Elevator - Wikipedia

   en.wikipedia.org/wiki/Elevator

   A water pump supplied a variable level of water pressure to a plunger encased inside a vertical cylinder, allowing the platform, carrying a heavy load, to be raised and lowered. Counterweights and balances were also used to increase lifting power. Elisha Otis demonstrating his safety system, at the New York Crystal Palace, 1853

6. UTC Climate, Controls & Security - Wikipedia

   en.wikipedia.org/wiki/UTC_Climate,_Controls...

   UTC Climate, Controls & Security; Formerly: UTC Building & Industrial Systems (July 2003- renamed UTC Fire & Security April 2005) Industry: Fire detection, Fire suppression, Combustion Control, Physical Security, Electronic Security Heating, Ventilating, Air Conditioning, Refrigeration

7. Dry running protection - Wikipedia

   en.wikipedia.org/wiki/Dry_running_protection

   Dry running protection, also known as dry-run protection or dry-running protection, is a type of protection mechanism to prevent a rotor, pump or stirrer shaft from operating without any medium added, as the bearing and shaft seal might be damaged if the motor is run while dry. [1]

8. Power brakes - Wikipedia

   en.wikipedia.org/wiki/Power_brakes

   Vacuum boosters provide brake assist for the driver by multiplying the force out of the booster creating more than the force that was used to push on the brake pedal. The booster works by pulling the air out of the booster chamber with a pump or other vacuum source (typically the engine's intake manifold [1]), creating a low-pressure system ...

9. Anti-lock braking system - Wikipedia

   en.wikipedia.org/wiki/Anti-lock_braking_system

   The pump in the ABS is used to restore the pressure to the hydraulic brakes after the valves have released it. A signal from the controller will release the valve at the detection of wheel slip. After a valve releases the pressure supplied from the user, the pump is used to restore the desired amount of pressure to the braking system.