Abstract: A machine is disclosed for automatically applying glue to one edge of a multi-leaved paper product to form a pad or book. A plurality of trays are mounted on a wheel-like carrier which is incrementally rotated about a horizontal axis to advance the trays in a circular path. The trays lie essentially in angularly spaced planes intersecting at a common line that is the axis of the carrier, and are loaded on at a time after arriving at a loading position in which the tray to be loaded is horizontally disposed with its receiving surface facing upwardly. Each product is hand loaded into the respective tray from outside the circular carrier, with the inside edge being placed against a jogging bar that is parallel to the carrier axis. The loaded product is sensed by a microswitch and, after a delay period during which time a holding clamp on the tray engages the product, the carrier is automatically advanced one increment to move the next tray to the loading position.