Derailleur gears operates the lever while pedalling, the change in cable tension moves the chain-guide from side to side, "derailing" the chain onto different sprockets. For more information about the choice of particular gear ratios and sprocket sizes, see Bicycle gearing. "Derailleur" is a French word, spelled "dérailleur" in French, derived from the derailment of a train from its tracks. Its first recorded use was 1930. At least one notable bicycle industry author has attempted to promote the anglicized spelling of "derailer". As of 2013, however, neither Merriam-Webster nor the Oxford English Dictionary has an entry for "derailer". Various derailleur systems were
French fry vending machine French fry vending machine A French fry vending machine is a vending machine that dispenses hot French fries, also known as chips. The first known french fry vending machine was developed circa 1982 by the defunct Precision Fry Foods Pty Ltd. in Australia. A few companies have developed and manufactured French fry vending machines and prototypes. Furthermore, a prototype machine was also developed at Wageningen University in the Netherlands. The now defunct Australian company Precision Fry Foods Pty Ltd. designed the first known French fry vending machine, named Mr. French Fry. The company registered the design with the Australian government