An improved web splicing apparatus that permits better handling of rolls of paper and other materials and the automatic splicing of the beginning of one roll of paper onto the approximate end of a second roll of paper without discontinuing the flow of paper to the utilizing device and without the use of core shafts. The apparatus utilizes two opposed pairs of independently controlled and positioned web roll support arms which are pivoted about spaced shafts and rotatably support cores of the paper rolls. This invention also allows sequential splicing of rolls having unequal web widths. This configuration also allows the right and left roll support arms to move the rolls upward in an overlapping path from a single loading position, thus providing a machine having considerably reduced dimensions and floor-space requirements. Another aspect of this invention is the automatic ejection of depleted roll-cores. A further aspect is the feasibility of configuring a stacked system of multiple splicers by rotating the splicers one quarter of a revolution, allowing machines to be stacked on top of one another to reduce floor space. Yet another aspect of this invention is the ability to remove partially depleted rolls without interrupting the feed of the web. Still another aspect is the use of the motor in conjunction with the brakes to expand the core chucks to grip the inside of the roll cores.