paalam thettunnu

trainukaludeyo shradhikkaatha rolling stokkinteyo anadhikritha neekkangal vazhi oru railway trackinte (allengil trackle ulla oru vyakthiyumaayo train poleyo ulla mattenthenkilum koottiyidikkunnathu) fouling (thadayukayo vittuveezhcha cheiyukayo cheyyuka) thadayaan upayogikkunna upakaranamaan paalam thettunna allengil paalam thettunna yanthram. upakaranam urundupokumbozho athiloode kadannupokumbozho paalam thettiyaanu upakaranam pravartthikkunnathu.
aakasmikamaaya paalam thettal upakaranagalkkum trackin kedupaadukal varuthunnundenkilum, athu pariharikkan ganyamaaya samayavum chelavum aavashyamaanenkilum, upakaranangal paalam thettunna sthalathinappurathekku pookaan anuvadikkukayaanenkil upakaranagalkk kooduthal kedupaadukal, parikk allengil maranam enniva undakanulla saadhyathayundengil paalam thettal upayogikkunnu.
aaplikkeshanukal.
paalam thettalukal prayogikkaam
design.
paalam thettunnathin naalu adisthaana roopangalundu.
veju.
reyilveyude mukalil cherunna vedju aakruthiyilulla urukk kashanamaanu ettavum saadhaaranamaaya roopam. oru kaaroo locomotive vaahanamo athinu mukaliloode uruttaan shramikkukayaanenkil, wheel flanch railwake mukaliloode puratthekku uyarthukayum athu paalam thettukayum cheiyunnu. upayogathilillaathappol, paalam thettukayum reyil thadassamillaathe avasheshikkukayum cheiyunnu. ithu swamedhayaa allengil vidooramaayi pravarthippikkaam; muun saahacharyathil anadhikritha udyogasthar athu neekkunnathu thadayaan oru loock prayogikkum. vadakke american reyilvekalil itharathilullava saadhaaranamaanu.
reyil verthirikkuka.
randaamathe tharam paalam thettunnath "splitt reyil" tharamaan. iva adisthaanaparamaayi oru poornnamo bhaagikamo aaya railway switch aanu, ithu thettaaya rolling stokkine pradhana lainil ninnu akattinirthunnu. eee phoom yukeyiludaneelam saadhaaranamaanu, avide ithine trap pooyintukal allengil catch pooyintukal ennu vilikkunnu.
portable.
moonnaamathe tharam paalam thettunnath portable paalam thettalaan, ithu railway mechanical crewe chila vyavasaayangalum upayogikkunnu. ithu palappozhum neela pathaaka niyamangalumayi samyojippichu upayogikkunnu (athaayath trackile upakaranangal neekkaan paadilla, kaaranam thozhilaallikal upakaranangalilo sameepatho aayathinal) ithu thaalkkaalika swabhaavamullathaanu. avaa reyilveyude oru vashath paalam thettukayum trackinte puratthekku choondukayum cheiyunnu. thudarnnu paalam thettunnathinte oru bhagam reyilveyilekku irukkaanum thudarnnu oru locking samvidaanam upayogichu surakshithamakkaanum kazhiyum. eathenkilum kaaranathaal paalam thettukayo allengil oru locking samvidaanam vinyasikkukayo cheythittillenkil, paalam thettunnathinte udama oru eph. aarr. inspector kandethiyaal ganyamaaya pizha neridendivarum.).
powered.
naalaamathe tharam paazhaayippokunna yanthram vaidyuthiyo motor gadippichatho aaya paazhaayippokunna yanthramaan, ithu oru aakyuvettariloode electronic reethiyil pravartthikkunnu. itharathilulla paalam thettunna yanthram oru baahya niyanthrana panalil ninno allengil swamedhayaa ninno vidooramaayi niyantrikkaan kazhiyum. attakuttappanikal nadathunna varkshoppukalilum dippokalilum jeevanakkaarude suraksha urappakkunnathinaayi dippo pezhsanal protection sisttangalude bhaagamaayi ithu saadhaaranayaayi sthaapikkunnu.
parajayangal.
1987 epril 1 nuu illinoyisile benhaamil oru vashathulla surakshithamallaatha kaar oru paalam thettiyathine paraajayappedutthukayum mainline thakararilavukayum cheythathupolulla avasarangalil paalam thettiyittund. thurumbedukkunna reyilukal kaaranam, "nirthaan" block signalukal nalkenda track surcuted shunt cheiyunnathil kaar parajayappettu. 2001 meyy meyy sii. ezz. ex 8888 apakadakaramaaya rasavasthukkal niracha 47 kaarukalude oru train valichedukkukayum rund manikkoor vare aniyanthrithamaayi oodukayum cheythu. oru portable paalam upayogichenkilum parajayappettu. 2017 epril 20 nuu britiish kolambiyayile vosil engleesh wood reyilveyil oru apakadatthil moonnu thozhilaallikal marichu, oodunna 11 reyil kaarukal marakattakal niraye lainil jolie cheiyunnathinide avarkkum avarude upakaranagalkkum nere idichu. kunnin mukalil reyil kaarukal thammil bandhippikkappedaathe kunnin mukalilekku niyanthranam vittu thaazhekku pathichappol avar thettaaya reethiyil sthaapicha paalam thettukayum railway bandhangal cheenjazhukukayum cheythu.

