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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 London) e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Safety Bicycle 1887
Safety is the state of being "safe", the condition of being protected from harm or other danger. Safety can also refer to risk management, the control of recognized hazards in order to achieve an acceptable level of risk. Meanings There are two slightly different meanings of ''safety''. For example, ''home safety'' may indicate a building's ability to protect against external harm events (such as weather, home invasion, etc.), or may indicate that its internal installations (such as appliances, stairs, etc.) are safe (not dangerous or harmful) for its inhabitants. Discussions of safety often include mention of related terms. Security is such a term. With time the definitions between these two have often become interchanged, equated, and frequently appear juxtaposed in the same sentence. Readers unfortunately are left to conclude whether they comprise a redundancy. This confuses the uniqueness that should be reserved for each by itself. When seen as unique, as we intend here, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blacksmith
A blacksmith is a metalsmith who creates objects primarily from wrought iron or steel, but sometimes from #Other metals, other metals, by forging the metal, using tools to hammer, bend, and cut (cf. tinsmith). Blacksmiths produce objects such as gates, grilles, railings, light fixtures, furniture, sculpture, tools, agricultural implements, decorative and religious items, cooking utensils, and weapons. There was an historical distinction between the heavy work of the blacksmith and the more delicate operation of a whitesmith, who usually worked in Goldsmith, gold, Silversmith, silver, pewter, or the finishing steps of fine steel. The place where a blacksmith works is called variously a smithy, a forge or a blacksmith's shop. While there are many people who work with metal such as farriers, wheelwrights, and Armourer, armorers, in former times the blacksmith had a general knowledge of how to make and repair many things, from the most complex of weapons and armor to simple things ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hotchkiss Bicycle Railroad
The Hotchkiss Bicycle Railroad was a purpose-built monorail on which a matching bicycle could be ridden. It was invented by Arthur Hotchkiss, and the first example was built between Smithville and Mount Holly, New Jersey, in 1892. It closed in 1897. Other examples were built in Norfolk from 1895 to 1909, Great Yarmouth, and Blackpool, UK from 1896. Smithville - Mount Holly In 1892, Arthur Hotchkiss received a patent for a bicycle railroad and contracted with the H. B. Smith Machine Company to manufacture it. The initial track ran from Smithville, in a nearly straight line, crossing the Rancocas Creek 10 times, and arrived at Pine Street, Mount Holly. It was completed in time for the Mount Holly Fair in September, 1892, and the purpose of the railway was supposed to have been enabling employees to commute quickly from Mount Holly to the factory at Smithville. Monthly commuter tickets cost $2.00 (equivalent to $ today). The record speed on the railway was 4.5 minutes (an aver ... [...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 Safe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gear Ratio
A gear train is a mechanical system formed by mounting gears on a frame so the teeth of the gears engage. Gear teeth are designed to ensure the pitch circles of engaging gears roll on each other without slipping, providing a smooth transmission of rotation from one gear to the next. Features of gears and gear trains include: * The gear ratio of the pitch circles of mating gears defines the speed ratio and the mechanical advantage of the gear set. * A planetary gear train provides high gear reduction in a compact package. * It is possible to design gear teeth for gears that are non-circular, yet still transmit torque smoothly. * The speed ratios of chain and belt drives are computed in the same way as gear ratios. See bicycle gearing. The transmission of rotation between contacting toothed wheels can be traced back to the Antikythera mechanism of Greece and the south-pointing chariot of China. Illustrations by the Renaissance scientist Georgius Agricola show gear trains with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicycle Gearing
Bicycle gearing is the aspect of a bicycle drivetrain that determines the relation between the cadence, the rate at which the rider pedals, and the rate at which the drive wheel turns. On some bicycles there is only one gear and, therefore, the gear ratio is fixed, but most modern bicycles have multiple gears and thus multiple gear ratios. A shifting mechanism allows selection of the appropriate gear ratio for efficiency or comfort under the prevailing circumstances: for example, it may be comfortable to use a high gear when cycling downhill, a medium gear when cycling on a flat road, and a low gear when cycling uphill. Different gear ratios and gear ranges are appropriate for different people and styles of cycling. A cyclist's legs produce power optimally within a narrow pedalling speed range, or cadence. Gearing can be optimized to use this narrow range as efficiently as possible. As in other types of transmissions, the gear ratio is closely related to the mechanical ad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chain-drive
Chain drive is a way of Transmission (mechanics), transmitting mechanical power from one place to another. It is often used to convey power to the wheels of a vehicle, particularly bicycles and motorcycles. It is also used in a wide variety of machines besides vehicles. Most often, the power is conveyed by a roller chain, known as the drive chain or transmission chain, passing over a sprocket gear, with the teeth of the gear meshing with the holes in the links of the chain. The gear is turned, and this pulls the chain putting mechanical force into the system. Another type of drive chain is the Morse chain, invented by the Morse Chain Company of Ithaca, New York, United States. This has inverted teeth. Sometimes the power is output by simply rotating the chain, which can be used to lift or drag objects. In other situations, a second gear is placed and the power is recovered by attaching shafts or hubs to this gear. Though drive chains are often simple oval loops, they can also go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 bicyc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Pope
Albert Augustus Pope (May 20, 1843 – August 10, 1909) was a Brevet Lieutenant-Colonel in the Union Army. He was an importer, promoter, and manufacturer of bicycles, and a manufacturer of automobiles. Early life Pope was born on May 20, 1843, in Boston, Massachusetts. His parents were Charles Pope and Elizabeth Bogman Pope. His father descended from a line of New Englanders in the timber and lumber business since the 1660s, but Charles opted for speculating in real estate. His maternal grandfather, Captain James Bogman, disappeared at sea after sailing out of Norfolk, Virginia, when Elizabeth was a youth. Albert was one of eight children. Around 1845, Charles Pope initiated his independence from the family business when he purchased his first lot in Brookline, Massachusetts, a nearby suburb of Boston. In 1846, he moved the family from Milton, Massachusetts, to a large house on Harvard Street in Brookline. He borrowed against his older landholdings to accumulate more lot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penny-farthing
The penny-farthing, also known as a high wheel, high wheeler or ordinary, is an early type of bicycle. It was popular in the 1870s and 1880s, with its large front wheel providing high speeds (owing to its travelling a large distance for every rotation of the legs) and comfort (the large wheel provides greater shock absorption). It became obsolete in the late 1880s with the development of modern bicycles, which provided similar speed amplification via chain-driven gear trains and comfort through pneumatic tires, and were marketed in comparison to penny-farthings as "safety bicycles" because of the reduced danger of falling and the reduced height to fall from. The name came from the British penny and farthing coins, the former being much larger than the latter, so that the side view resembles a larger penny (the front wheel) leading a smaller farthing (the rear wheel). Although the name "penny-farthing" is now the most common, it was probably not used until the machines were ne ... [...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 p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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