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2. Hand pump - Wikipedia

   en.wikipedia.org/wiki/Hand_pump

   Hand-powered force pump, with an air chamber to smooth out variations in flow rate. Hand pumps are manually operated pumps; they use human power and mechanical advantage to move fluids or air from one place to another. They are widely used in every country in the world for a variety of industrial, marine, irrigation and leisure activities.

3. Action (firearms) - Wikipedia

   en.wikipedia.org/wiki/Action_(firearms)

   In pump action firearms, a sliding grip at the fore-end beneath the barrel is manually operated by the user to eject and chamber cartridges. Pump actions are predominantly found in shotguns . Some examples of firearms using the pump-action are the Winchester Model 1912 , Remington 870 , and Mossberg 500 .

4. Drum pump - Wikipedia

   en.wikipedia.org/wiki/Drum_pump

   Drum pump, barrel pump, and transfer pump refer to pumps that are used to empty barrels, tanks, IBCs and drums. [1] Many liquids used on manufacturing and processing plants are delivered in 100 or 200 litre barrels and are too heavy to tip to empty the liquids inside. Drum pumps range from simple siphon based devices to sophisticated highly ...

5. Pump action - Wikipedia

   en.wikipedia.org/wiki/Pump_action

   Pump action is a type of manual firearm action that is operated by moving a sliding handguard on the gun's forestock. When shooting , the sliding forend is pulled rearward to eject any expended cartridge and typically to cock the hammer or striker , and then pushed forward to load a new cartridge into the chamber .

6. Double-barreled shotgun - Wikipedia

   en.wikipedia.org/wiki/Double-barreled_shotgun

   The change from one barrel to the other may be done by a clockwork type system, where a cam alternates between barrels, or by an inertial system where the recoil of firing the first barrel toggles the trigger to the next barrel. A double-barreled shotgun with an inertial trigger works best with full power shotshells; shooting low recoil ...

7. Lincoln Industrial - Wikipedia

   en.wikipedia.org/wiki/Lincoln_Industrial

   Various hand-held grease guns, couplers and other accessories were developed to address a wide range of applications. Despite the pressures of a long-term suit, the company developed the first drum pump for transferring lubricants from the original refinery containers. Lincoln developed the first portable oil drain and a quick detachable air ...