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2. Electric gate - Wikipedia

   en.wikipedia.org/wiki/Electric_gate

   One of the first electric gates was invented by a Canadian Fred W. Watson in 1881. It was designed to be used for railway systems. [2] In 1884, a number of American newspapers reported that the French railway companies were about to adopt an electric gate opener.

3. Tractor Supply Company - Wikipedia

   en.wikipedia.org/wiki/Tractor_Supply_Company

   Tractor Supply Company (also known as TSCO or TSC), founded in 1938, is an American chain store that sells home improvement, agriculture, lawn and garden maintenance, livestock, equine and pet care equipment and supplies. It caters to farmers, ranchers, pet owners, and landowners.

4. Swing-door operator - Wikipedia

   en.wikipedia.org/wiki/Swing-door_operator

   Disengaging, closer-based, push-mount, electro-mechanical operator. View from above. Shades of blue: standard door closer. Shades of red: opener gears. Gold: motor. Operators use various internal technologies. Some are built on top of a standard door closer. To open the door, the operator forces the closer in the opening direction.

5. Allis-Chalmers - Wikipedia

   en.wikipedia.org/wiki/Allis-Chalmers

   Allis-Chalmers was a U.S. manufacturer of machinery for various industries.Its business lines included agricultural equipment, construction equipment, power generation and power transmission equipment, and machinery for use in industrial settings such as factories, flour mills, sawmills, textile mills, steel mills, refineries, mines, and ore mills.

6. Garage door - Wikipedia

   en.wikipedia.org/wiki/Garage_door

   A garage door is a large door to allow egress for a garage that opens either manually or by an electric motor (a garage door opener). Garage doors are frequently large enough to accommodate automobiles and other vehicles. The operating mechanism is usually spring-loaded or counterbalanced to offset the door's weight and reduce the human or ...

7. Gate driver - Wikipedia

   en.wikipedia.org/wiki/Gate_driver

   A gate driver is a power amplifier that accepts a low-power input from a controller IC and produces a high-current drive input for the gate of a high-power transistor such as an IGBT or power MOSFET. Gate drivers can be provided either on-chip or as a discrete module. In essence, a gate driver consists of a level shifter in combination with an ...