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Safety Bicycle
A safety bicycle (or simply a safety) is a type of bicycle that became very popular beginning in the late 1880s as an alternative to the penny-farthing ("ordinary") and is now the most common type of bicycle. Early bicycles of this style were known as safety bicycles because they were noted for, and marketed as, being safer than the high wheelers they were replacing. Even though modern bicycles use a similar design, the term is rarely used today and is considered obsolete outside circles familiar with high wheelers. Definition The term 'safety bicycle' was used in the 1880s for any alternative to the penny-farthing. The front and rear wheel were not necessarily the same size. Later historians began to use the term in a more restricted way for the design that was a direct ancestor to most modern bicycles. "Diamond frame" is also sometimes used as a term for safety bicycles, even though this technically only refers to a certain type of safety bicycle. The retronym "upright bicycl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicycle Chain
A bicycle chain is a roller chain that transfers power from the pedals to the drive-wheel of a bicycle, thus propelling it. Most bicycle chains are made from plain carbon or alloy steel, but some are nickel-plated to prevent rust, or simply for aesthetics. History Obsolete chain designs previously used on bicycles included the block chain, the skip-link chain, and the Simpson lever chain. The first chains were of a simple, bushing-less design. These had inherent reliability problems and a bit more friction (and mechanical efficiency losses) than modern chains. With these limitations in mind, the Nevoigt brothers, of the German Diamant Bicycle Company, designed the roller chain in 1898, which uses bushings. More recently, the "bushingless roller chain" design has superseded the bushed chain. This design incorporates the bearing surface of the bushing into the inner side plate, with each plate creating half of the bushing. This reduces the number of parts needed to assem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rover Safety Bicycle Of 1885 (right)
Rover may refer to: People * Constance Rover (1910–2005), English historian * Jolanda de Rover (born 1963), Dutch swimmer * Rover Thomas (c. 1920–1998), Indigenous Australian artist Places * Rover, Arkansas, US * Rover, Missouri, US * Rover, West Virginia, US * Røver Anchorage, Bouvet Island, Norway * Rover Creek, British Columbia, Canada Arts and entertainment Literature * ''Rover'', the US title of '' They Came on Viking Ships'', a children's novel by Jackie French * ''The Rover'' (story paper), a British boys' story paper which started in 1922 Music * "Rover" (BlocBoy JB song), 2018 **"Rover 2.0", a 2018 remake by BlocBoy JB featuring 21 Savage from the mixtape '' Simi'' * "Rover" (S1mba song), 2020 viral hit by S1mba featuring DTG * "Rover" (UCLA song), a sports cheer at the University of California Los Angeles * "The Rover" (Led Zeppelin song), a song by Led Zeppelin on their 1975 double album ''Physical Graffiti'' * " The Irish Rover", an Irish folk so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Kemp Starley
John Kemp Starley (24 December 1855 – 29 October 1901) was an English inventor and industrialist who is widely considered the inventor of the modern bicycle, and also originator of the name Rover. Early life Born on 24 December 1855 Starley lived on Church Hill, Walthamstow, London, England. He was the son of a gardener, John Starley, and Mary Ann (née Cippen).Biography at Vestry House Museum, Walthamstow In 1872 he moved to Coventry to work with his uncle James Starley, an inventor. He worked with his uncle and William Hillman for several years building Ariel cycles. Career In 1877, he started a new business ''Starley & Sutton Co'' with William Sutton, a local cycling enthusiast. They set about developing bicycles that were safer and easier to use than the prevailing penny farthing or "ordinary" bicycles. They started by manufacturing tricycles, and by 1883 their products were being branded as "Rover". In 1885, Starley made history when he produced the Rover S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicycle Frame
A bicycle frame is the main component of a bicycle, onto which wheels and other components are fitted. The modern and most common frame design for an upright bicycle is based on the safety bicycle, and consists of two triangles: a main triangle and a paired rear triangle. This is known as the ''diamond frame''. Frames are required to be strong, stiff and light, which they do by combining different materials and shapes. A frameset consists of the frame and fork of a bicycle and sometimes includes the headset and seat post. Frame builders will often produce the frame and fork together as a paired set. Variations Besides the ubiquitous diamond frame, many different frame types have been developed for the bicycle, several of which are still in common use today. Diamond In the diamond frame, the main "triangle" is not actually a triangle because it consists of four tubes: the head tube, top tube, down tube and seat tube. The rear triangle consists of the seat tube joined by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheel
A wheel is a circular component that is intended to rotate on an axle bearing. The wheel is one of the key components of the wheel and axle which is one of the six simple machines. Wheels, in conjunction with axles, allow heavy objects to be moved easily facilitating movement or transportation while supporting a load, or performing labor in machines. Wheels are also used for other purposes, such as a ship's wheel, steering wheel, potter's wheel, and flywheel. Common examples are found in transport applications. A wheel reduces friction by facilitating motion by rolling together with the use of axles. In order for wheels to rotate, a moment needs to be applied to the wheel about its axis, either by way of gravity or by the application of another external force or torque. Using the wheel, Sumerians invented a device that spins clay as a potter shapes it into the desired object. Terminology The English word '' wheel'' comes from the Old English word , from Proto-Germanic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bike Boom
The bike boom or bicycle craze is any of several specific historic periods marked by increased bicycle enthusiasm, popularity, and sales. Prominent examples include 1819 and 1868, as well as the decades of the 1890s and 1970sthe latter especially in North Americaand the 2010s in the United Kingdom. 1819 The first period which may be called a bicycle craze actually refers to a precursor of the bicycle which was propelled by being pushed along with the feet as the rider straddled the contraption, and had no pedals. This machine was invented by Baron Karl von Drais in Germany, and was called variously a "draisine" (English) or "draisienne" (French) after his name, a "velocipede" from the Latin terms for "fast foot", a "hobby horse", or a " dandy horse", the last name being perhaps the most popular. Drais got a patent for his invention in 1818, and the craze swept Europe and the United States during the summer of 1819 while many manufacturers (notably Denis Johnson of Londo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Center Of Mass
In physics, the center of mass of a distribution of mass in space (sometimes referred to as the balance point) is the unique point where the weighted relative position of the distributed mass sums to zero. This is the point to which a force may be applied to cause a linear acceleration without an angular acceleration. Calculations in mechanics are often simplified when formulated with respect to the center of mass. It is a hypothetical point where the entire mass of an object may be assumed to be concentrated to visualise its motion. In other words, the center of mass is the particle equivalent of a given object for application of Newton's laws of motion. In the case of a single rigid body, the center of mass is fixed in relation to the body, and if the body has uniform density, it will be located at the centroid. The center of mass may be located outside the physical body, as is sometimes the case for hollow or open-shaped objects, such as a horseshoe. In the case of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicycle Tire
A bicycle tire is a tire that fits on the Bicycle wheel, wheel of a bicycle or similar vehicle. These tires may also be used on tricycles, wheelchairs, and handcycles, frequently for Wheelchair racing, racing. Bicycle tires provide an important source of Bicycle suspension, suspension, generate the lateral forces necessary for Bicycle and motorcycle dynamics#Balance, balancing and Bicycle and motorcycle dynamics#Turning, turning, and generate the longitudinal forces necessary for Vehicle propulsion, propulsion and Bicycle brake systems, braking. Although the use of a pneumatic tire greatly reduces rolling resistance compared to the use of a rigid wheel or solid tire, the tires are still typically, the second largest source, after Drag (physics), wind resistance (air drag), of power consumption on a level road. The modern detachable pneumatic bicycle tire contributed to the popularity and eventual dominance of the safety bicycle. Bicycle tires are also used on unicycles, tricy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sprocket
A sprocket, sprocket-wheel or chainwheel is a profiled wheel with teeth that mesh with a chain, track or other perforated or indented material. The name 'sprocket' applies generally to any wheel upon which radial projections engage a chain passing over it. It is distinguished from a gear in that sprockets are never meshed together directly, and differs from a pulley in that sprockets have teeth and pulleys are smooth except for timing pulleys used with toothed belts. Sprockets are used in bicycles, motorcycles, tracked vehicles, and other machinery either to transmit rotary motion between two shafts where gears are unsuitable or to impart linear motion to a track, tape etc. Perhaps the most common form of sprocket may be found in the bicycle, in which the pedal shaft carries a large sprocket-wheel, which drives a chain, which, in turn, drives a small sprocket on the axle of the rear wheel. Early automobiles were also largely driven by sprocket and chain mechanism, a practi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crankset
The crankset (in the US) or chainset (in the UK), is the component of a bicycle drivetrain that converts the reciprocating motion of the rider's legs into rotational motion used to drive the chain or belt, which in turn drives the rear wheel. It consists of one or more sprockets, also called ''chainrings'' or ''chainwheels'' attached to the '' cranks'', ''arms'', or ''crankarms'' to which the pedals attach. It is connected to the rider by the pedals, to the bicycle frame by the bottom bracket, and to the rear sprocket, cassette or freewheel via the chain. Parts Cranks The two ''cranks'', one on each side and usually mounted 180° apart, connect the bottom bracket axle to the pedals. Lengths Bicycle cranks can vary in length to accommodate different sized riders and different types of cycling. Crank length is measured from the center of the pedal spindle to the center of the bottom bracket spindle or axle. The larger bicycle component manufacturers typically offe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicopee, Massachusetts
Chicopee ( ) is a city located on the Connecticut River in Hampden County, Massachusetts, United States. As of the 2020 census, the city had a population of 55,560, making it the second-largest city in Western Massachusetts after Springfield. Chicopee is part of the Springfield, Massachusetts Metropolitan Statistical Area. The communities of Chicopee Center (Cabotville), Chicopee Falls, Willimansett, Fairview, Aldenville, Burnett Road, Smith Highlands and Westover are located within the city. One of the ventures of the Boston Associates, Chicopee is a city built around several smaller former mill communities on its namesake, the Chicopee River. During the 19th century, the city was home to the first American producer of friction matches as well as a variety of other industries, including the Ames Manufacturing Company, an early pioneer in machining lathes, building upon the work of Springfield's Thomas Blanchard, and the largest producer of swords and cutlasses for the Uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overman Wheel Company
Overman Wheel Company was an early bicycle manufacturing company in Chicopee Falls, Massachusetts from 1882 to 1900. It was known for bicycles of higher quality and lower weight than other bicycles of its time. Despite a nationwide bicycle craze in the late 1800s, the company was undercut by lower-priced competition, nearly went bankrupt in 1897, and never recovered from an 1899 fire. The company was sold in 1900. History Albert Overman started the Overman Wheel Company in 1882 in Chicopee Falls, Massachusetts with an investment of $62,000. Overman were the first American manufacturers of the safety bicycle. In 1888 the company began making its own bicycles, with a staff of about thirty men. At its height, the factory employed about 1,400 men in five buildings. The factory produced 80,000 bicycles per year, the only bicycle factory at the time which made the entire bicycle. Victor Bicycle The flagship product of the Overman Company was the Victor Bicycle. The Victor Bicycle ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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