Phillips Tyres Shepton Mallet

t: 01749 342430     e:     Follow us on Facebook     Central Garage, Paul Street, Shepton Mallet, Somerset, BA4 5LD



History reports that brakes were initially invented for use with steel-rimmed wheels of horse drawn carriages and steam locomotives with a wooden block often applied to the wheel to force the vehicle to a stop. The introduction of rubber tires by the Michelin brothers in 1895 brought about research into a more efficient way of braking vehicles as the previous versions were unworkable with rubber tyres. In 1899 the Daimler car manufacturer developed a system of drum braking called servo assistance where a cable attached to the chassis of the car would tighten around the drum to reduce resistance on the brake pedal. The servo system is still in operation today where the drum brake is used.


The drum brake was the first new method of braking introduced in the late 19th century with components such as the brake shoes housed in a drum that spun with the wheel. It explains that when the brake pedal of a motor car is depressed the brake shoes are forced against the drum slowing the wheel and the car.


According to History, disc brakes were introduced in the 1970s as a way of increasing the efficiency of braking on cars used for racing, which over the subsequent years has trickled down to cars used for everyday purposes. A small caliper holds two brake pads, one on either side of a rotor which is attached to the wheel. When the brake pedal is depressed, the caliper clamps the two brake pads to the rotor creating friction and heat that slow the wheel.


The drum braking system carries a number of problems, the main being a reduction in braking ability when the hardware contained in the drum becomes too hot with friction. According to history, reduced braking ability was a problem in large vehicles carrying heavy loads when the drum braking system could not cool itself. Disc brakes, on the other hand, are not enclosed and therefore are cooled by outside air flowing over the discs as the car moves. As the cost of producing disc brakes is higher and forces up the retail cost of building a car, many manufacturers are using disc brakes for the front wheels of a car and cheaper drum brakes for the rear where less force is needed to slow the vehicle.


The antilock braking system is a common feature on cars manufactured in the early part of the 21st century. This advance in car braking reduces the chances of brakes locking the car's wheels in place and not allowing the driver to steer away from danger. Before the advent of antilock braking, to avoid skidding and locking brakes a driver would pump the brake manually but the antilock brakes now do this automatically, allowing the driver to steer as the car brakes.

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