Abstract: A reciprocating slat conveyor for loading and unloading a bulk cargo from a stationary or movable receptacle includes a plurality of elongate slats arranged side-by-side along the bottom of the receptacle and grouped into three slat sets each set movable along the bottom of the receptacle. The conveyor includes three cross members each attached to a respective slat set. The cross members and slats are moved by a two-cylinder slat drive which simultaneously moves all slats and cross members in a first direction and then moves the slat sets and cross members in a second direction, opposite the first direction, one cross member and slat set at a time.

Abstract: There is disclosed a sheet feeding device having a vibration member for generating vibration for feeding a sheet member. The vibration member is in frictional engagement with the sheet member, which is fed by vibration generated in the vibration member. The device further has a member for controlling the amplitude of the vibration of the vibration member according to the feeding speed of the sheet member whereby the sheet can be fed with a desired speed.