thattogethermakeonebigarmofawiper.Thenumberofarmsthatgoesforaparticularmode
of transportation is decided legally.
Whentalkingaboutwipers,theotherthingthatcomesintoourmindisthesmallnozzlethatis
presentjustneartothefixedsideofthearmofthewiper.Itisknownasthewindscreenwasher
system.Itwasobservedthatmanytimestherewereinstanceswhendirtoricewouldjuststick
onthesurfaceofthewindscreenandanyspeedofthewiperswouldnotaffectthem;thisis
when the windscreen washing system comes handy. The well-placed nozzles can spray
anti-freezeorwaterdependinguponwhichwasfilledinthetank.Theantifreezeandwaterjust
help in removing the ice and the dust layer respectivelymaking the work of a wiper easy.
Nowadaysthecars arealsoequippedwithheaterspointedatthewindscreenwhichproves
usefullyinwintersasitmeltstheicelayertowater.Alongwiththeheater,thewindscreen
glasses alsohave aheatingwiregoingthroughtheglassbody.All thesemeasureshelp to
preventtheicefromformingalayerontheglasssurface.Also,manycarmodelshavemini
wipersontheheadlampssothattheycanfunctionappropriatelyamidsttheunsuitableweather
conditions.
Thefirstpatentforthewindscreenwiperwasfiledintheyear1896.GeorgeCapewell,the
patent holder, invented a motorised wiper system forthe automobiles like cars, buses, trucks.
Butitwasnottilltheearly1900sthatthecarmodelshadwipersinstalledinthem.In 1903 the
firstoperationalwiperwasintroducedinthemarketunderthenameofawindowcleaning
deviceforcarsandotherautomobiles.Onecouldoperatethewipersusingtheleverthatwas
installedinthecarbody.Thesystemthatisdescribedwastheonethatwasusedinmostofthe
cars that ran on the streets during that time.