flight conveyor
A type of conveyor comprising one or more endless propelling media, such as chain, to which flights are attached and a trough through which material is pushed by the flights.
http://www.webref.org/geology/f/flight_conveyor.htm

Flight Conveyor
The conveyor in figure 5 has rubber flights attached to a rubber belt. The flights help prevent the “roll-back” of the seed normally encountered with conventional belt conveyors. The flight conveyor can therefore be operated at higher incline angles without increasing belt speed. In another kind of flight conveyor, rubber flights are attached to a chain enclosed by a casing (figure 6). As the chain is driven forward, the rubber flights move the seed.
http://www.extension.iastate.edu/Publications/PM1026.pdf



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Note added at 1 hr (2015-05-16 12:36:33 GMT)
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Radi se o transportnoj traci koja ima utore. Najčešće se naziva rebrasta traka. Dakle traka koja transportira nešto u rasutom stanju ili nešto što se ne može transportirati glatkom trakom. Prednost takvih traka je u tome što se transporter može postaviti pod malo većim nagibom, može vući ili spuštati predmete/tvari i bolje njima upravljati, transportirati ih.

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Note added at 2 hrs (2015-05-16 12:46:15 GMT)
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Elektrostrojarski riječnik
flight conveyor > rebrasti transporter, rebrasta, profilirana traka sa graničnicima

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Note added at 2 hrs (2015-05-16 12:49:28 GMT)
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FLIGHT =A series of steps between floors or levels.
http://www.oxforddictionaries.com/definition/english/flight