Search results
Results from the WOW.Com Content Network
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.
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.
1.2 plant-derived. 1.3 Rocks and minerals (or predominantly mineral-derived substances) 2 Synthetic materials. ... List of raw materials used in button-making.
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 common type of fixture, used in materials tensile testing (Grip-Engineering). A fixture is a work-holding or support device used in the manufacturing industry. [1] [2] Fixtures are used to securely locate (position in a specific location or orientation) and support the work, ensuring that all parts produced using the fixture will maintain conformity and interchangeability.
An emergency switch in Japan. On railways, [1] an emergency stop is a full application of the brakes in order to bring a train to a stop as quickly as possible. [2] This occurs either by a manual emergency stop activation, such as a button being pushed on the train to start the emergency stop, or on some trains automatically, when the train has passed a red signal or the driver has failed to ...
Buttons and button-like objects used as ornaments or seals rather than fasteners have been discovered in the Indus Valley civilization during its Kot Diji phase (c. 2800–2600 BC). [1] Buttons as apparel have been found at sites of the Catacomb culture , Russia (2500-1950 BC), at the Tomb of the Eagles , Scotland (2200–1800 BC), [ 2 ] [ 3 ...
Button – control which can be clicked upon to perform an action. An equivalent to a push-button as found on mechanical or electronic instruments. Radio button – control which can be clicked upon to select one option from a selection of options, similar to selecting a radio station from a group of buttons dedicated to radio tuning. Radio ...