A sheet holder (100) for holding sheets (50) comprising a housing (101) defining first and second side walls (120 and 110) spaced apart from each other and defining a slot (170) therebetween. The first and second side walls (120 and 110) also define a bottom aperture (172) leading into the slot (170). A plurality of guiding grooves (134) are defined in the first side wall (120) facing the slot (170). The guiding grooves (134) define substantially opposed groove top and bottom ends (136 and 138) and extend further away from the second side wall (110) adjacent the groove top end (136) than adjacent the groove bottom end (138). Holding elements are each at least partially received in a respective one of the guiding grooves (134) and movable therealong. At least part of the holding elements (134) remains in the guiding grooves (134) at all positions therealong.

A machine for applying support members to opposing sides of opposing edges of a sheet material includes a support tab applicator assembly that applies a first portion of a support tab along a longitudinal edge of a first side of the sheet material, a support tab finisher assembly that applies a second portion of the support tab disposed opposite the first portion to a second side of the sheet material disposed opposite the first side, and a hole punch assembly that cuts a hole through the sheet material. The machine also may include a strengthening film applicator assembly that applies a strengthening film along a longitudinal length of the first side of the sheet material and/or across the support tab.

The invention relates to a magnetic poster holder unit, where a v- or u-shaped magnet clip in the bottom is provided with a magnet. According to the invention, the magnet clip is in the top, on the outer side, designed with notches, whereby the magnet clip can be clicked into a hanging profile, which has an inner shape, which corresponds to the outer shape of the magnet clip, such that the magnet clip's notch by insertion in the hanging profile can provide a mechanical locking and thereby fixation between the magnet clip and the hanging profile. The invention also relates to a method for detachable hanging of poster of flat, flexible length material along a poster edge, where the poster edge includes magnetic items and where the poster edge's magnetic items are brought to contact against a magnet clip containing corresponding magnetic items.

A machine for applying support members to opposing sides of opposing edges of a sheet material includes a support tab applicator assembly that applies a first portion of a support tab along a longitudinal edge of a first side of the sheet material, a support tab finisher assembly that applies a second portion of the support tab disposed opposite the first portion to a second side of the sheet material disposed opposite the first side, and a hole punch assembly that cuts a hole through the sheet material. The machine also may include a strengthening film applicator assembly that applies a strengthening film along a longitudinal length of the first side of the sheet material and/or across the support tab.

The invention relates to a magnetic poster holder unit, where a v- or u-shaped magnet clip in the bottom is provided with a magnet. According to the invention, the magnet clip is in the top, on the outer side, designed with notches, whereby the magnet clip can be clicked into a hanging profile, which has an inner shape, which corresponds to the outer shape of the magnet clip, such that the magnet clip's notch by insertion in the hanging profile can provide a mechanical locking and thereby fixation between the magnet clip and the hanging profile. The invention also relates to a method for detachable hanging of poster of flat, flexible length material along a poster edge, where the poster edge includes magnetic items and where the poster edge's magnetic items are brought to contact against a magnet clip containing corresponding magnetic items.