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The first roller skate was an inline skate design, effectively an ice skate with a line of wheels replacing the blade. In modern usage, the term typically refers to skates with two pairs of wheels on shared axles like those of skateboards (early versions of which were made using roller skate parts). Skates with this configuration are also known ...
James Leonard Plimpton (1828, Medfield, Massachusetts - 1911) was an American inventor who is known for changing the skating world with his patented roller skates in 1863. . Plimpton's roller skates were safer and easier to use than the existing versions, his "rocker skates" or quad skates allowed people to steer by simply leaning to the left or the r
Micajah C. Henley was born on June 24, 1856, in Richmond, Indiana, to a Quaker family. [2] [3] Henley lived at 201 N. 14th Street in Richmond in his parents home. [2]M.C. Henley grew his business operation from a small outbuilding at the rear of his parents' home at 309 N 14th Street, to a large modern factory which he built on North 16th Street, employing over 300 people.
Urban skates Hockey skates. Inline skates are boots with wheels arranged in a single line from front to back, allowing a skater to roll along on these wheels. Inline skates are technically a type of roller skate, but most people associate the term roller skates with quad skates, another type of roller skate with a two-by-two wheel arrangement similar to a car.
"Hi-Lo" arrangements are also available, which usually have three larger wheels and one smaller wheel under the ball of the foot, allowing a lower and shorter overall frame design. In 2014 Powerslide (a German inline skate company) introduced a 125mm wheel for use on a three-wheeled frame varying in sizes from 11.8" to 13.0".
The company is known for popularizing the straight-eight engine and four-wheel hydraulic brakes. A Duesenberg car was the first American car to win a Grand Prix race, winning the 1921 French Grand Prix. Duesenbergs won the Indianapolis 500 in 1922 (when eight of the top ten finishers were Duesenbergs), 1924, 1925 and 1927.
Duesenberg was also patentholder of his designs for a four-wheel hydraulic brake, an early automatic transmission, and a cooling system, among others. Fred and his younger brother, August "Augie" Duesenberg , shared the patents , filed in 1913 and renewed in 1918, for their "walking beam" four-cylinder engine and the Duesenberg Straight 8 (an ...
A tourist rental quadricycle: Quadricycle International Q-Cycle-6 [1] A Rhoades Car 4W2P 4-Wheel Bike parked on a Canadian urban street. A quadracycle (also spelled quadricycle) is a four-wheeled human-powered land vehicle. It is also referred to as a quadcycle, pedal car or four-wheeled bicycle amongst other terms.