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A push-button (also spelled pushbutton) or simply button is a simple switch mechanism to control some aspect of a machine or a process. Buttons are typically made out of hard material, usually plastic or metal. [1] The surface is usually flat or shaped to accommodate the human finger or hand, so as to be easily depressed or pushed.
Pushing the raised button opens or closes the contacts and pops out the previously depressed button so the process can be reversed. In the U.S., the buttons were commonly black; the "on" button typically had a white mother-of-pearl (real or simulated) inlay to indicate its function. By convention, the switch was customarily installed with the ...
A button is a fastener that joins two pieces of fabric together by slipping through a loop or by sliding through a buttonhole. In modern clothing and fashion design, buttons are commonly made of plastic but also may be made of metal, wood, or seashell. Buttons can also be used on containers such as wallets and bags.
A programmable logic controller (PLC) or programmable controller is an industrial computer that has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, machines, robotic devices, or any activity that requires high reliability, ease of programming, and process fault diagnosis.
They are found in factories to monitor and control machines or production lines and in places such as nuclear power plants, ships, aircraft and mainframe computers. Older control panels are most often equipped with push buttons and analog instruments, whereas nowadays in many cases touchscreens are used for monitoring and control purposes.
The company's headquarters is located in Nürtingen in the Stuttgart region of South Germany. The company's customers come from a variety of industries including automotive manufacturers and their suppliers, machine building industry, contract manufacturers, power engineering, tool and die manufacturing as well as aerospace [4] companies.
Product conception, design, manufacture and sales are carried out by a team of 130 workers, all based at the factory in Ostfildern near Stuttgart in south western Germany. The company's most powerful tow tractor, the F396P, is used to tow the world's largest cargo aircraft ( Antonov An-225 ) and the Airbus A380 , the largest passenger aircraft.
With the increased use of low-current switching in automobiles, silicone-rubber keypads are being used extensively as switch mechanisms for various buttons such as window lifts and steering wheel mounted controls. Low-resistance pills such as SC pills and gold pills, along with short-stroke metal-dome contacts, are widely used in these settings.