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  2. Water timer - Wikipedia

    en.wikipedia.org/wiki/Water_timer

    The solenoid/diaphragm timer uses more battery power throughout the "on" cycle because the solenoid must be actuated the entire time that the water flow is "on". The ball valve timer using the motor and gear actuator only uses more battery power during the few seconds that motor is used to turn the water flow on or off.

  3. Sprinkler system timer - Wikipedia

    en.wikipedia.org/wiki/Sprinkler_system_timer

    A sprinkler system timer is an electrical device that is used to set an irrigation sprinkler system to come on automatically at a certain time. Irrigation timers first appeared in the early 1960s to control large-radius lawn sprinklers, which at the time usually contained their own electrically operated valve (most golf-course sprinklers still use this type of actuation).

  4. Gear pump - Wikipedia

    en.wikipedia.org/wiki/Gear_pump

    An exploded view of an external gear pump Fluid flow in an external gear pump Fluid flows from left to right in this internal gear pump. Oil pump from a scooter engine. A gear pump uses the meshing of gears to pump fluid by displacement. [1] They are one of the most common types of pumps for hydraulic fluid power applications.

  5. Spur Battery - Wikipedia

    en.wikipedia.org/wiki/Spur_Battery

    Spur Battery is an artillery battery in the British Overseas Territory of Gibraltar. It is located in the Upper Battery area of the southern end of the Upper Rock Nature Reserve, just southwest of O'Hara's Battery. A 9.2-inch Mark X breech-loading gun was mounted on the emplacement in 1902, with improvements made to the battery after World War I.

  6. Green Brook Flood Control Project - Wikipedia

    en.wikipedia.org/wiki/Green_Brook_Flood_Control...

    The Green Brook Flood Control Project is a flood control project in Somerset County in central New Jersey first proposed in the early 1970s in the wake of two major flooding events: a 1971 flood event and a major 1973 flood which ravaged the Green Brook and Raritan River basins, causing millions in property damage and several deaths in central New Jersey.

  7. Differential (mechanical device) - Wikipedia

    en.wikipedia.org/wiki/Differential_(mechanical...

    Spur-gear differential. A spur-gear differential has equal-sized spur gears at each end, each of which is connected to an output shaft. [8] The input torque (i.e. from the engine or transmission) is applied to the differential via the rotating carrier. [8] Pinion pairs are located within the carrier and rotate freely on pins supported by the ...

  8. Rolls-Royce Silver Spirit - Wikipedia

    en.wikipedia.org/wiki/Rolls-Royce_Silver_Spirit

    The Park Ward replaced the Silver Spur/Spirit Touring Limousine. In the middle of the 1998 model year the name was changed to Rolls-Royce Silver Spur Park Ward. The model nomenclature on the badge on the rear of the car says Park Ward. Standard equipment on this model included a bar cabinet with crystal decanters and goblets, intercom, an ...

  9. Railroad switch - Wikipedia

    en.wikipedia.org/wiki/Railroad_switch

    A right-hand railroad switch with point indicator pointing to right Animated diagram of a right-hand railroad switch. Rail track A divides into two: track B (the straight track) and track C (the diverging track); note that the green line represents direction of travel only, the black lines represent fixed portions of track, and the red lines depict the moving components.