A bicycle bell is a percussive signaling instrument mounted on a bicycle for warning pedestrians and other cyclists. They are usually mounted on the handlebars and thumb activated.
A bicycle bell is a percussive signaling instrument mounted on a bicycle for warning pedestrians and other cyclists. They are usually mounted on the handlebars and thumb activated.
The bicycle bell was invented by John Richard Dedicoat, [1] and patents for bicycle bells appear as early as 1877. [2]
The most common bells are actuated by a thumb-operated lever that is geared to rapidly rotate two loosely slung metal discs inside the bell housing. Said discs repeatedly rattle and strike the bell to produce a sound not unlike that of an electric bell. This type of bell [3] comes in left and right handed versions. Left handed versions are mounted on the left side of the handle bars and are used in countries that drive on the left hand side of the road. The right hand is then free to give traffic signals.
Simpler types also exist, with a spring-mounted external clapper that creates a "ding-ding" sound when the clapper is pulled with a finger and released. Some bells, particularly these "ping" types, work poorly in rainy conditions because water drops clinging to the bell damp the vibrations which produce sound.[ citation needed ]
The bell is a required piece of equipment in some jurisdictions.
In the United Kingdom, bells on new bikes were compulsory until 1983, and again since 1 May 2011. [4]
In New Jersey, a bicycle must be equipped with a bell or other audible device that can be heard at least 100 feet away, but not a siren or whistle. [5]
In Ontario, a bike must have a bell or horn in good working order. [6]
In Western Australia, a person riding a bicycle must have a bell or similar warning device. [7]
In the Czech Republic, bells or other signalling device were required until 1 August 2002.
Bicycle bells have also been used as musical instruments in such notable recordings as "You Still Believe in Me" on Pet Sounds by The Beach Boys [10] and "Bicycle Race" by Queen and more.
A fixed-gear bicycle is a bicycle that has a drivetrain with no freewheel mechanism such that the pedals always will spin together with the rear wheel. The freewheel was developed early in the history of bicycle design but the fixed-gear bicycle remained the standard track racing design. More recently the "fixie" has become a popular alternative among mainly urban cyclists, offering the advantage of simplicity compared with the standard multi-geared bicycle.
Bicycle law in California is the parts of the California Vehicle Code that set out the law for persons cycling in California, and a subset of bicycle law in the United States. In general, pretty much all the same rights and responsibilities that apply to car drivers apply to bicycle riders as well.
Automatic Warning System (AWS) is a railway safety system invented and predominantly used in the United Kingdom. It provides a train driver with an audible indication of whether the next signal they are approaching is clear or at caution. Depending on the upcoming signal state, the AWS will either produce a 'horn' sound, or a 'bell' sound. If the train driver fails to acknowledge a warning indication, an emergency brake application is initiated by the AWS. However if the driver correctly acknowledges the warning indication by pressing an acknowledgement button, then a visual 'sunflower' is displayed to the driver, as a reminder of the warning.
A train whistle or air whistle is an audible signaling device on a steam or gas locomotive, used to warn that the train is approaching, and to communicate with rail workers. Modern diesel and electric locomotives primarily use a powerful air horn instead of a whistle as an audible warning device. However, the word whistle continues to be used by railroaders in referring to such signaling practices as "whistling off".
An air horn is a pneumatic device designed to create an extremely loud noise for signaling purposes. It usually consists of a source which produces compressed air, which passes into a horn through a reed or diaphragm. The stream of air causes the reed or diaphragm to vibrate, creating sound waves, then the horn amplifies the sound making it louder. Air horns are widely employed as vehicle horns, installed on large buses, semi-trailer trucks, fire trucks, trains, and some ambulances as a warning device, and on ships as a signaling device.
A steam whistle is a device used to produce sound in the form of a whistle using live steam, which creates, projects, and amplifies its sound by acting as a vibrating system.
PZB or Indusi is an intermittent cab signalling system and train protection system used in Germany, Austria, Slovenia, Croatia, Romania, Israel, Serbia, on two lines in Hungary, on the Tyne and Wear Metro in the UK, and formerly on the Trillium Line in Canada.
Bicycle safety is the use of road traffic safety practices to reduce risk associated with cycling. Risk can be defined as the number of incidents occurring for a given amount of cycling. Some of this subject matter is hotly debated: for example, which types of cycling environment or cycling infrastructure is safest for cyclists. The merits of obeying the traffic laws and using bicycle lighting at night are less controversial. Wearing a bicycle helmet may reduce the chance of head injury in the event of a crash.
Many countries have enacted electric vehicle laws to regulate the use of electric bicycles, also termed e-bikes. Some jurisdictions have regulations governing safety requirements and standards of manufacture. The members of the European Union and other regions have wider-ranging legislation covering use and safety.
Noise regulation includes statutes or guidelines relating to sound transmission established by national, state or provincial and municipal levels of government. After the watershed passage of the United States Noise Control Act of 1972, other local and state governments passed further regulations.
A railway detonator, or fog signal is a coin-sized device that is used as a loud warning signal to train drivers. It is placed on the top of the rail, usually secured with two lead straps, one on each side. When the wheel of the train passes over, it explodes, emitting a loud bang. It was invented in 1841 by English inventor Edward Alfred Cowper.
A train horn is an air horn used as an audible warning device on diesel and electric-powered trains. Its primary purpose is to alert persons and animals to an oncoming train, especially when approaching a level crossing. They are often extremely loud, allowing them to be heard from great distances. They are also used for acknowledging signals given by railroad employees, such as during switching operations. For steam locomotives, the equivalent device is a train whistle.
Bicycle law in the United States is the law of the United States that regulates the use of bicycles. Although bicycle law is a relatively new specialty within the law, first appearing in the late 1980s, its roots date back to the 1880s and 1890s, when cyclists were using the courts to assert a legal right to use the roads. In 1895, George B. Clementson, an American attorney, wrote The Road Rights and Liabilities of Wheelmen, the first book on bicycle law, in which he discussed the seminal cases of the 1880s and 1890s, which were financed by Albert Pope of Columbia Bicycles, and through which cyclists gained the right to the road.
The design of road signs in Poland is regulated by Regulation of the Ministers of Infrastructure and Interior Affairs and Administration on road signs and signals. The Annex 1 to the regulation describes conditions related to usage of the road signs – size, visibility, colors and light reflections, typeface and text, criteria of choosing the type of foil to signs faces, colorful specimens and schematics.
A vehicle horn is a sound-making device installed on motor vehicles, trains, boats, and other types of vehicles. The sound it makes usually resembles a “honk” or a “beep”. The driver uses the horn to warn people of danger. The horn is activated to warn others of the vehicle's presence or approach, or to call attention to some hazard. Motor vehicles, ships and trains are required by law in some countries to have horns. Trams, trollies, streetcars, and even bicycles are also legally required to have an audible warning device in many areas.
Cycling in Australia is a common form of transport, recreation and sport. Many Australians enjoy cycling because it improves their health and reduces road congestion and air pollution. The government has encouraged more people to start, with several state advertising campaigns aimed at increasing safety for those who choose to ride. There is a common perception that riding is a dangerous activity. While it is safer to walk, cycling is a safer method of transport than driving. Cycling is less popular in Australia than in Europe, however cyclists make up one in forty road deaths and one in seven serious injuries.
Electric vehicle warning sounds are sounds designed to alert pedestrians to the presence of electric drive vehicles such as hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), and battery electric vehicles (BEVs) travelling at low speeds. Warning sound devices were deemed necessary by some government regulators because vehicles operating in all-electric mode produce less noise than traditional combustion engine vehicles and can make it more difficult for pedestrians and cyclists to be aware of their presence. Warning sounds may be driver triggered or automatic at low speeds; in type, they vary from clearly artificial to those that mimic engine sounds and those of tires moving over gravel.
Cycling infrastructure is all infrastructure cyclists are allowed to use. Bikeways include bike paths, bike lanes, cycle tracks, rail trails and, where permitted, sidewalks. Roads used by motorists are also cycling infrastructure, except where cyclists are barred such as many freeways/motorways. It includes amenities such as bike racks for parking, shelters, service centers and specialized traffic signs and signals. The more cycling infrastructure, the more people get about by bicycle.
Designs of level crossings, where railway lines cross roads or other paths, vary country-to-country.
The Rockwell patent, No. 471,982, for a bicycle bell, consisting of a combination of a base plate, with a revoluble striker bar, spring-actuated in one direction, a lever operatively connected therewith, and adapted to rotate the striker bar in opposition to the force of the spring, and a gong, held invalid because of anticipation by the English patent, No. 2,425, of June 22, 1877, to Alfred Bennett, for improvements in call bells, door bells, etc. 64 Fed. 859. reversed.See also US 471982,E.D. Rockwell,"Bell",published March 29, 1892
If you get a brand new bicycle from 1 May, make sure its got a brand new bell. Bells on new bikes were compulsory until 1983, but from this weekend they will once again be mandatory.
39:4-11 Audible Signal. A bicycle must be equipped with a bell or other audible device that can be heard at least 100 feet away, but not a siren or whistle.
HTA 75 (5) - Bell: a bike must have a bell or horn in good working order. Set fine: $85.00
Pedestrians have right-of-way on the State's shared path system and the onus is on cyclists to provide a clear warning of their presence, particularly when approaching another path user from behind. For that reason, a person riding a bicycle in WA must have a bell or similar warning device that is in good working order.
| Frame |  | |
|---|---|---|
| Wheels | ||
| Drivetrain | ||
| Cabling | ||
| Peripherals | ||
