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bicycle - BICYCLES BICYCLES Bicycle History Bicycle...

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Unformatted text preview: BICYCLES BICYCLES Bicycle History Bicycle Celerifere or Hobby Horse Draisienne First Pedal Operated Velocipede First Chain Operated Ordinary Safety Celerifere Celerifere Celerite Means Speed Also Called, By Mistake, Hobby Or Dandy Horse Draisienne Dates Dates Back to Late 17th Century Century No Steering Horizontal Wooden Bar Horizontal With Two Equal Sized Wheels Wheels Propulsion By Running 1818 Draisienne Draisienne Baron Baron Karl Drais von Sauerbron Sauerbron Also Called Hobby Horse Dandy Horse First First Steerable Bicycle (1817 or 1818) or Propulsion By Running Wooden Frame, Padded Wooden Seat & Arm Rest Seat 23 Miles, 2.5 Hours, 9.5 MPH 1825-1830 First Pedal-Operated Bicycle First Kirkpatrick Macmillan Blacksmith Invented 1839 Curved Wooden Backbone Curved For Saddle & Rider For Iron tire Wooden Wheels & Iron Brass Bearings Brass Pedal Operated Classical Pedal Four-Bar Linkage Four-Bar Velocipede Velocipede Pierre Michaux Parisian Locksmith Conceived 1855 Boneshaker (1861) 1865 No Springs Steel Rims 400 Per Year (1865) Production, England (1870) Pedals On Hub Kickstand / Prop Cable Brake 1863 Chain Bicycle Chain Designed Designed By Andre Guilmet (1869) Guilmet Clockmaker Built By Meyer (1869) Mechanic Separate Separate Pedals & Crank From Hub Crank Ordinary Bicycle Ordinary Also 1870 Called Penny-Farthing Grand-Bi Ariel Steel Spokes Front Wheel Was Enlarged Increased Speed Saddle Adapted Moved Above Wheel More Force Applied Problems Mounting & Dismounting Stability 1887 Safety Bicycle Safety Forerunner & Prototype Equal Sized Front & Equal Rear Wheels Rear Rear Wheel Driven By Rear Chain & Sprocket Chain Bicycles - Mechanical Development Bicycles Steel Ball Bearings Jules Suriray (1869) Paris Cycle Show (1869) Tubular Frames Wire Spoked Wheels & Solid Rubber tires Mudguards Freewheels & Change-Speed Gears Triangular Tubular Frame (1890s) Pneumatic Tires Conceived By Thompson (1845) Reinvented By J.B. Dunlop (1893) ...
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