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The safety fuse is a type of fuse invented and patented by English inventor ... The outcome was the development of a fuse which when lit "the fire only travels along ...
A fire in an oxygen tube approaching an oxygen firebreak. An oxygen firebreak, also known as a fire stop valve or fire safety valve, is a thermal fuse designed to extinguish a fire in the delivery tube being used by a patient on oxygen therapy and stop the flow of oxygen if the tube is accidentally ignited.
The commercial and military version of a burning fuse referred to as safety fuse (invented by William Bickford) is a textile tube filled with combustible material and wrapped to prevent external exposure of the burning core. Safety fuses are used to initiate the detonation of explosives through the use of a blasting cap.
Because standard safety fuse burns at around half a metre per minute, it is not practicable to provide delays of more than a few minutes in this way. It was also possible to connect a pencil detonator to so-called "instantaneous fuse" (not to be confused with detonating cord) which had an unusually fast burn rate of over 7 metres per second.
Loose or poor connections in traditional electrical accessories and switchgear can cause heat to develop capable of starting a fire. This problem is known as High Resistance Connection (HRC) and safety devices such as fuses and Residual Current Devices (RCDs) are unable to disconnect the electrical supply because they cannot detect a HRC.
William Bickford was born in Ashburton, Devon, England, United Kingdom to William and Mary Bickford. [1] He moved to first Truro and then Tuckingmill in Cornwall.Tuckingmill was then in the heart of the Cornish mining industry, and Bickford would have been aware of the large loss of life from explosive accidents in the mines.
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