14 show a schematic of the intermediate modules 6 with a reciprocating conveyor 53 each module 6 contains a section 54 of a reciprocating conveyor 53 each section 54 contains flights 55 with transverse shafts 56 rollers 57 that run in guides 58 supporting rollers 59 and a longitudinal shaft 60 the shafts 60 of sections 54 are connected by couplings 61 and form a single shaft connected to a reciprocating mechanism mounted on the drive module 7 located on the mining platform 15 when the flights 55 are moved in the direction of transport designated by an arrow 62 they swing into a substantially vertical position and push the material 50 within the intermediate module 6 in the direction of transport when the flights 55 are moved in the opposite direction they swing into a substantially horizontal position by the resistance of the material 26 and return without pushing the material 50 fig1 through 17 show a schematic of the intermediate modules 6 with another embodiment of a reciprocating conveyor 62 containing flights 63 with rollers 64 that run in guides 65 within longitudinal linkages 66 when the flights 63 are moved in the direction of transport designated by an arrow 67 they swing into a substantially vertical position and push the material 50 within the intermediate module 6 in the direction of transport when the flights 63 are moved in the opposite direction they swing into a substantially horizontal position by the resistance of the material 50 and return without pushing the material 50 fig1 and 19 show a schematic of the intermediate modules 6 with yet another embodiment of a reciprocating conveyor in this embodiment flights 68 are moved into a substantially.