Abstract: First and second parallel folding rollers (6 and 7) respectively co-operate with third and fourth folding rollers (4 and 5) of folder means to form first and second folding devices (4, 6 and 5, 7). Non-return feed rollers (8 and 9) are mounted between the first and second folding rollers (6 and 7) for folding pliable strip material (3) alternately to the two folding devices (4, 6 and 5, 7) and an intermediate part (14) of the folder means extends between the third and fourth folding rollers (4 and 5) so as to act as a guide for the pliable strip material (3). Movable guide means (12) are operable to deflect the leading end (24) of the pliable strip material (3) towards the first folding devices (4 and 6).

Abstract: Apparatus (1) for automatically selecting a "secondary" sheet (6) of copying paper of a desired size from a store (7) containing secondary sheets (6) of different size arranged in groups (10) of the different sizes and for automatically aligning and associating the selected sheet (6) with a "primary" sheet (3) to be copied, the primary sheet (3) being inserted in the apparatus (1) and the size of the primary sheet (3) being sensed by the apparatus to determine the selection of the secondary sheet (6).Alignment is effected by bringing the leading edges (4 and 8) of primary and secondary sheets (3 and 6) into abutment with stop means (11 or 12) so that the leading end portion (8) of the secondary sheet (3) is provided with a wave-shaped portion upstream of the leading end portions (5 and 8) of the primary and secondary sheets (3 and 6).