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2. Aerial work platform - Wikipedia

   en.wikipedia.org/wiki/Aerial_work_platform

   Replacing an advertising poster in London using an aerial work platform. An aerial work platform (AWP), also an aerial device, aerial lift, boom lift, bucket truck, cherry picker, elevating work platform (EWP), mobile elevating work platform (MEWP), or scissor lift, is a mechanical device used to provide temporary access for people or equipment to inaccessible areas, usually at height.

3. Telescoping (mechanics) - Wikipedia

   en.wikipedia.org/wiki/Telescoping_(mechanics)

   Telescoping in mechanics describes the movement of one part sliding out from another, lengthening an object (such as a telescope or the lift arm of an aerial work platform) from its rest state. [1] In modern equipment this can be achieved by a hydraulics , but pulleys are generally used for simpler designs such as extendable ladders and amateur ...

4. Wheelchair ramp - Wikipedia

   en.wikipedia.org/wiki/Wheelchair_ramp

   A concrete wheelchair ramp A portable wheelchair ramp. A wheelchair ramp is an inclined plane installed in addition to or instead of stairs. Ramps permit wheelchair users, as well as people pushing strollers, carts, or other wheeled objects, to more easily access a building, or navigate between areas of different height. Ramps for accessibility ...

5. Mobility scooter - Wikipedia

   en.wikipedia.org/wiki/Mobility_scooter

   4 wheel mobility scooters are more stable than three wheel mobility scooters and can be folding, travel, or heavy duty. Usually they are more expensive than a three-wheel mobility scooter, but offer better stability, longer battery life, and an increased weight capacity. Folding/travel mobility scooters fold up to provide easy transport. They ...

6. Runaway truck ramp - Wikipedia

   en.wikipedia.org/wiki/Runaway_truck_ramp

   Gravity escape ramp: a long, upwardly inclined path parallel to the road. Substantial length is required. Control can be difficult for the driver; problems include rollback after the vehicle stops. Sand pile escape ramp: a short length of loosely piled sand. Problems include sudden, forceful deceleration; sand being affected by weather ...

7. Elevator - Wikipedia

   en.wikipedia.org/wiki/Elevator

   Cascading telescopic 2-speed door configuration inside of an elevator A large "slab" door. Elevator doors prevent riders from falling into, entering, or tampering with anything in the shaft. The most common configuration is to have two panels that meet in the middle and slide open laterally. These are known as "center-opening".