Yambani

Kumayambiriro kwa zaka za m'ma 1830 atangobadwa kumene galimoto ya nthunzi, anthu ena anatenga pakati kuti apereke matabwa a matabwa ndi mphira "mayendedwe" a mphira, kotero kuti magalimoto olemera amatha kuyenda pamtunda wofewa, koma mayendedwe oyambirira a njanji ndi ntchito sizili bwino, mpaka 1901 pamene Lombard ku United States inapanga galimoto yoyendetsa nkhalango, yomwe inangopanga njira yabwino yoyambira. Patadutsa zaka zitatu, injiniya waku California Holt anagwiritsa ntchito zimene Lombard anatulukira popanga ndi kupanga “77″ thirakitala ya nthunzi.

Inali thirakitala yoyamba kutsatiridwa padziko lonse lapansi. Pa Novembala 24, 1904, thirakitala idayesedwa koyamba ndipo pambuyo pake idapangidwa mochuluka. Mu 1906, Holt a thirakitala kupanga kampani anamanga dziko loyamba mafuta mkati kuyaka injini chokwawa thirakitala, amene anayamba kupanga misa chaka chotsatira, anali thalakitala bwino kwambiri pa nthawiyo, ndipo anakhala fanizo la thanki yoyamba padziko lapansi yopangidwa ndi British patapita zaka zingapo. Mu 1915, British adapanga thanki ya "Little Wanderer" motsatira thirakitala yaku America "Brock". Mu 1916, akasinja opangidwa ndi French "Schnad" ndi "Saint-Chamonix" adatsata mathirakitala aku America "Holt". Okwawa alowa m'mbiri ya akasinja pafupifupi 90 masika ndi autumn mpaka pano, ndipo mayendedwe masiku ano, mosasamala kanthu za mawonekedwe awo structural kapena zipangizo, processing, etc., mosalekeza kulemeretsa thanki chuma nyumba, ndipo njanji apanga akasinja amene angathe kupirira mayesero a nkhondo.

Pangani

Mawilo ndi maunyolo osinthika omwe amayendetsedwa ndi mawilo ogwira ntchito omwe amazungulira mawilo ogwira ntchito, magudumu onyamula katundu, mawilo olowetsamo ndi ma pulleys onyamula. Ma track amapangidwa ndi nsapato za njanji ndi mapini. Ma track pin amalumikiza ma track kuti apange ulalo wa njanji. Nthambi ziwiri za nsapato za njanji zimabowoleredwa, kulumikiza ndi gudumu logwira ntchito, ndipo pakati pali mano opangira mano, omwe amagwiritsidwa ntchito kuwongola njanji ndikuletsa njanji kuti isagwe pamene thanki imatembenuzidwa kapena kugubuduzika, ndipo pali nthiti yolimba yotsutsa (yotchedwa chitsanzo) pambali ya kukhudzana kwapansi kuti apititse patsogolo kulimba ndi kulondola kwa nsapato.