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Cooper Wheelock
Wheelock is a fire alarm and general signaling products manufacturer owned by Eaton Corporation. History Some of the earliest signals produced by Wheelock were the A-1 series of AC-powered, dual-projector electromechanical horns. In the early 1970s, Wheelock introduced the 31 (AC-powered) and 34 (DC-powered) series of electromechanical horns. Around 1976, Wheelock created the 7001 (2-wire, flush-mount DC), 7002 (2-wire, surface-mount DC), 34+WS (4-wire, surface-mount DC), and 7004 (2-wire, surface-mount AC) electromechanical horn/strobes. These were the first fire alarm signals to use xenon strobes instead of incandescent lights. The signals either had pigtail leads or screw terminals for power. Models with screw terminals had the letter "T" in their model numbers (e.g. 34T, 7002T). The horn and strobe on the 7001 and 7002 models are wired in series, causing the horn to produce a distinctive "skipping" sound when the strobe flashes, similar to the "March Time" code. In late 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Alarm
A fire alarm system warns people when smoke, fire, carbon monoxide or other fire-related or general notification emergency, emergencies are detected. These alarms may be activated automatically from smoke detectors and heat detectors or may also be activated via manual fire alarm activation devices such as manual call points or pull stations. Alarms can be either motorized bells or wall mountable sounders or horns. They can also be speaker strobes which sound an alarm, followed by a voice evacuation message which warns people inside the building not to use the elevators. Fire alarm sounders can be set to certain frequencies and different tones including low, medium, and high, depending on the country and manufacturer of the device. Most fire alarm systems in Europe sound like a siren with alternating frequencies. Fire alarm electronic devices are known as horns in the United States and Canada and can be either continuous or set to different codes. Fire alarm warning devices can al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens Building Technologies
Siemens Building Technologies is an Operating Division of Siemens. It provides automation technologies and services for commercial, industrial and public buildings and infrastructures. The division is headquartered in Zug, Switzerland, and employs 28,069 people worldwide (September 2018) . History Siemens Building Technologies resulted from the 1998 acquisition of the industrial activities of Elektrowatt Ltd. ( Zurich, Switzerland), Cerberus Ltd. (Männdedorf, Switzerland), and of Staefa Control System Ltd. ( Stäfa, Switzerland) by Siemens.Siemens Building Technologies About UHistory Siemens Building Technology The newly built Siemens Building Technologies CPS Software House was opened in Chicago in October 2017, built for $20 million as an R&D facility. In 2018, the division made a number of acquisitions, including Comfy in Oakland, and the smart-building companies J2 Innovations and Enlightened. President of the Siemens Building Technologies division was Dave Hopping. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheelock Exceder LED3 Ceiling Speaker Strobe
Wheelock and similar may refer to: Firms and buildings * Cooper Wheelock, a manufacturer of fire alarm and general signaling products * Wheelock and Company, formerly British Hong Wheelock and Marden Company Limited * Wheelock College, a small liberal arts college in Boston, Massachusetts * Wheelock House, a building in City of Victoria, Hong Kong * Wheelock Place, a building in Singapore People * Wheelock (name) Places * River Wheelock in Cheshire in England * Wheelock Parkway, St. Paul, Minnesota, a historic street in St. Paul, Minnesota * Wheelock, Cheshire, a long village south of Sandbach in Cheshire in England * Wheelock, North Dakota, a ghost town in the United States * Wheelock, Texas, a small town * Wheelock, Vermont, town in northern Vermont Other * Wheellock, a mechanism for firing a gun * Wheelock's Latin, a well-known beginning Latin textbook * The word "wheelock" occasionally occurs as an improper usage of wheel clamp A wheel clamp, also known as wheel boot, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheelock Exceder Fire Alarm Horn-Strobe
Wheelock and similar may refer to: Firms and buildings * Cooper Wheelock, a manufacturer of fire alarm and general signaling products * Wheelock and Company, formerly British Hong Wheelock and Marden Company Limited * Wheelock College, a small liberal arts college in Boston, Massachusetts * Wheelock House, a building in City of Victoria, Hong Kong * Wheelock Place, a building in Singapore People * Wheelock (name) Places * River Wheelock in Cheshire in England * Wheelock Parkway, St. Paul, Minnesota, a historic street in St. Paul, Minnesota * Wheelock, Cheshire, a long village south of Sandbach in Cheshire in England * Wheelock, North Dakota, a ghost town in the United States * Wheelock, Texas, a small town * Wheelock, Vermont, town in northern Vermont Other * Wheellock, a mechanism for firing a gun * Wheelock's Latin, a well-known beginning Latin textbook * The word "wheelock" occasionally occurs as an improper usage of wheel clamp A wheel clamp, also known as wheel boot, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens
Siemens AG ( ) is a German multinational conglomerate corporation and the largest industrial manufacturing company in Europe headquartered in Munich with branch offices abroad. The principal divisions of the corporation are ''Industry'', ''Energy'', ''Healthcare'' (Siemens Healthineers), and ''Infrastructure & Cities'', which represent the main activities of the corporation. The corporation is a prominent maker of medical diagnostics equipment and its medical health-care division, which generates about 12 percent of the corporation's total sales, is its second-most profitable unit, after the industrial automation division. In this area, it is regarded as a pioneer and the company with the highest revenue in the world. The corporation is a component of the Euro Stoxx 50 stock market index. Siemens and its subsidiaries employ approximately 303,000 people worldwide and reported global revenue of around €62 billion in 2021 according to its earnings release. History 1847 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens ZR Strobe
Siemens AG ( ) is a German multinational conglomerate corporation and the largest industrial manufacturing company in Europe headquartered in Munich with branch offices abroad. The principal divisions of the corporation are ''Industry'', ''Energy'', ''Healthcare'' (Siemens Healthineers), and ''Infrastructure & Cities'', which represent the main activities of the corporation. The corporation is a prominent maker of medical diagnostics equipment and its medical health-care division, which generates about 12 percent of the corporation's total sales, is its second-most profitable unit, after the industrial automation division. In this area, it is regarded as a pioneer and the company with the highest revenue in the world. The corporation is a component of the Euro Stoxx 50 stock market index. Siemens and its subsidiaries employ approximately 303,000 people worldwide and reported global revenue of around €62 billion in 2021 according to its earnings release. History 1847 to 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens SEF-SEFH-SET Speaker Strobe
Siemens AG ( ) is a German multinational conglomerate corporation and the largest industrial manufacturing company in Europe headquartered in Munich with branch offices abroad. The principal divisions of the corporation are ''Industry'', ''Energy'', ''Healthcare'' (Siemens Healthineers), and ''Infrastructure & Cities'', which represent the main activities of the corporation. The corporation is a prominent maker of medical diagnostics equipment and its medical health-care division, which generates about 12 percent of the corporation's total sales, is its second-most profitable unit, after the industrial automation division. In this area, it is regarded as a pioneer and the company with the highest revenue in the world. The corporation is a component of the Euro Stoxx 50 stock market index. Siemens and its subsidiaries employ approximately 303,000 people worldwide and reported global revenue of around €62 billion in 2021 according to its earnings release. History 1847 to 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens SET-WP Speaker Strobe
Siemens AG ( ) is a German multinational conglomerate corporation and the largest industrial manufacturing company in Europe headquartered in Munich with branch offices abroad. The principal divisions of the corporation are ''Industry'', ''Energy'', ''Healthcare'' (Siemens Healthineers), and ''Infrastructure & Cities'', which represent the main activities of the corporation. The corporation is a prominent maker of medical diagnostics equipment and its medical health-care division, which generates about 12 percent of the corporation's total sales, is its second-most profitable unit, after the industrial automation division. In this area, it is regarded as a pioneer and the company with the highest revenue in the world. The corporation is a component of the Euro Stoxx 50 stock market index. Siemens and its subsidiaries employ approximately 303,000 people worldwide and reported global revenue of around €62 billion in 2021 according to its earnings release. History 1847 to 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piezoelectric
Piezoelectricity (, ) is the electric charge that accumulates in certain solid materials—such as crystals, certain ceramics, and biological matter such as bone, DNA, and various proteins—in response to applied Stress (mechanics), mechanical stress. The word ''piezoelectricity'' means electricity resulting from pressure and latent heat. It is derived from the Greek language, Greek word ; ''piezein'', which means to squeeze or press, and ''ēlektron'', which means amber, an ancient source of electric charge. The piezoelectric effect results from the linear electromechanical interaction between the mechanical and electrical states in crystalline materials with no Centrosymmetry, inversion symmetry. The piezoelectric effect is a reversible process (thermodynamics), reversible process: List of piezoelectric materials, materials exhibiting the piezoelectric effect also exhibit the reverse piezoelectric effect, the internal generation of a mechanical strain resulting from an appli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheelock NS Horn Strobe
Wheelock and similar may refer to: Firms and buildings * Cooper Wheelock, a manufacturer of fire alarm and general signaling products * Wheelock and Company, formerly British Hong Wheelock and Marden Company Limited * Wheelock College, a small liberal arts college in Boston, Massachusetts * Wheelock House, a building in City of Victoria, Hong Kong * Wheelock Place, a building in Singapore People * Wheelock (name) Places * River Wheelock in Cheshire in England * Wheelock Parkway, St. Paul, Minnesota, a historic street in St. Paul, Minnesota * Wheelock, Cheshire, a long village south of Sandbach in Cheshire in England * Wheelock, North Dakota, a ghost town in the United States * Wheelock, Texas, a small town * Wheelock, Vermont, town in northern Vermont Other * Wheellock, a mechanism for firing a gun * Wheelock's Latin, a well-known beginning Latin textbook * The word "wheelock" occasionally occurs as an improper usage of wheel clamp A wheel clamp, also known as wheel boot, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horn (acoustic)
An acoustic horn or waveguide is a tapered sound guide designed to provide an acoustic impedance match between a sound source and free air. This has the effect of maximizing the efficiency with which sound waves from the particular source are transferred to the air. Conversely, a horn can be used at the receiving end to optimize the transfer of sound from the air to a receiver. Acoustic horns are found in nature in the form of the burrows constructed by male mole crickets to amplify their song. The earliest appearance of the horn in connection to sound in The Times was published in 1786: Applications Acoustic horns are used in: * horn loudspeakers * brass and woodwind musical instruments * vehicle horns such as those used on cars, trucks, trains, boats, and bicycles * megaphones, often used by lifeguards at public swimming pools. * foghorns, used to warn ships * ear horns, used by people who are hard of hearing (the human ear itself having the form of a horn) * pickup horn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
