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2. Hand truck - Wikipedia

   en.wikipedia.org/wiki/Hand_truck

   A hand truck. A hand truck, also known as a hand trolley, dolly, stack truck, trundler, box cart, sack barrow, cart, sack truck, two wheeler, or bag barrow, is an L-shaped box-moving handcart with handles at one end, wheels at the base, with a small ledge to set objects on, flat against the floor when the hand truck is upright. [1]

3. Rubber-tyred metro - Wikipedia

   en.wikipedia.org/wiki/Rubber-tyred_metro

   The first idea for rubber-tyred railway vehicles was the work of Scotsman Robert William Thomson, the original inventor of the pneumatic tyre.In his patent of 1846 [2] he describes his 'Aerial Wheels' as being equally suitable for, "the ground or rail or track on which they run". [3]

4. Air brake (road vehicle) - Wikipedia

   en.wikipedia.org/wiki/Air_brake_(road_vehicle)

   Truck air-actuated disc brake. An air brake or, more formally, a compressed-air-brake system, is a type of friction brake for vehicles in which compressed air pressing on a piston is used to both release the parking/emergency brakes in order to move the vehicle, and also to apply pressure to the brake pads or brake shoes to slow and stop the vehicle.

5. George Walther Sr. - Wikipedia

   en.wikipedia.org/wiki/George_Walther_Sr.

   George Walther Sr. (August 13, 1876 – April 10, 1961) was an American inventor, engineer, businessman, civic leader and the holder of over 100 patents for truck wheels, brake drums, fifth wheels, and landing gear/legs for the trucking industry.

6. Air suspension - Wikipedia

   en.wikipedia.org/wiki/Air_suspension

   This allows the user to tilt the vehicle side-to-side, front-to-back, in some instances "hit a 3-wheel" (contort the vehicle so one wheel lifts up from the ground) or even "hop" the entire vehicle into the air. When a pressure reservoir is present, the flow of air or gas is commonly controlled with pneumatic solenoid valves. This allows the ...

7. Tubeless tire - Wikipedia

   en.wikipedia.org/wiki/Tubeless_tire

   A tubeless tire (also spelled as tubeless tyre in Commonwealth English) is a pneumatic tire that does not require a separate inner tube.. Unlike pneumatic tires which use a separate inner tube, tubeless tires have continuous ribs molded integrally into the bead of the tire that are forced by air pressure into a flange on the metal rim of the wheel, sealing the tire to the rim.