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2. Rotary combination lock - Wikipedia

   en.wikipedia.org/wiki/Rotary_combination_lock

   Many combination locks have three wheels, but the lock may be equipped with additional wheels, each with a drive pin and fly, in a similar manner. The number of wheels in the mechanism determines the number of specific dial positions that must be entered to open the lock, so a three-sequence combination is required for a three-wheel lock.

3. Combination lock - Wikipedia

   en.wikipedia.org/wiki/Combination_lock

   A Wordlock letter combination lock.. A combination lock is a type of locking device in which a sequence of symbols, usually numbers, is used to open the lock. The sequence may be entered using a single rotating dial which interacts with several discs or cams, by using a set of several rotating discs with inscribed symbols which directly interact with the locking mechanism, or through an ...

4. Tubular pin tumbler lock - Wikipedia

   en.wikipedia.org/wiki/Tubular_pin_tumbler_lock

   A tubular lock and key. A tubular pin tumbler lock, also known as a circle pin tumbler lock, radial lock, or the trademark Ace lock popularized by manufacturer Chicago Lock Company since 1933, is a variety of pin tumbler lock in which a number of pins are arranged in a circular pattern, and the corresponding key is tubular or cylindrical in shape.

5. Wheel cylinder - Wikipedia

   en.wikipedia.org/wiki/Wheel_cylinder

   A wheel cylinder is a component of a hydraulic drum brake system. [1] It is located in each wheel and is usually positioned at the top of the wheel, above the shoes. Its function is to exert force onto the shoes so as to bring them into contact with the drum and stop the vehicle with friction . [ 2 ]

6. Center-pivot irrigation - Wikipedia

   en.wikipedia.org/wiki/Center-pivot_irrigation

   A satellite image of circular fields characteristic of center pivot irrigation, Kansas Farmland with circular pivot irrigation. Center-pivot irrigation (sometimes called central pivot irrigation), also called water-wheel and circle irrigation, is a method of crop irrigation in which equipment rotates around a pivot and crops are watered with sprinklers.

7. Norias of Hama - Wikipedia

   en.wikipedia.org/wiki/Norias_of_Hama

   The Norias of Hama (Arabic: نواعير حماة) are a series of 17 norias, historic water-raising machines for irrigation, along the Orontes River in the city of Hama, Syria. They are tall water wheels with box-like water collection compartments embedded around their rims. As the river flows, it pushes these water collection boxes under ...

8. Dethridge wheel - Wikipedia

   en.wikipedia.org/wiki/Dethridge_wheel

   Dethridge wheel in 1936 – Victoria Australia. The Dethridge wheel is an irrigation tool that was invented in 1910 by John Stewart Dethridge (1865–1926). [1] It works in a similar way to a traditional water wheel and rotates as water passes through its vanes. The rotations are then measured [2]

9. Irrigation controller - Wikipedia

   en.wikipedia.org/wiki/Irrigation_controller

   For example, the typical professional controller will calculate the actual flow rate running in the system when a specific zone is operated, compare this to a pre-configured required amount, and adjust the irrigation process if deviation from the zone's flow rate is detected; This mechanism is called "Flow monitoring", and can prevent ...