the intermediate fig8 position in this position it will be observed that the lift conveyor extends laterally at substantially a 90 u00b0 angle relative to the longitudinal axis of tender 20 moreover it will be seen that the lift conveyor inlet 74 is laterally offset from the lower conveyor outlet 65 in the next sequence the sub frame assembly 80 frame assembly 68 and lift conveyor 34 are translated laterally to a central position where the lower conveyor outlet 65 comes into mating relationship with the lift conveyor inlet 74 to this end the piston and cylinder assembly 102 is actuated to shift the transition box 104 rightwardly as viewed in fig8 and 9 between the limit switches 98 100 this serves to center the lift conveyor 34 with saddle 113 coming into mating engagement with pin 137 in order to stabilize the lower end of sub frame 80 at this point the conveyor 34 may be swung laterally through an arc of substantially 180 u00b0 this is accomplished by appropriate operation of piston and cylinder assembly 112 thereby causing corresponding shifting of chain 108 and rotation of sub frame 80 and the lift conveyor in order to elevate the lift conveyor the piston and cylinder assembly 140.