Abstract: Disclosed herein is a sheet perforating apparatus comprising a sheet transfer mechanism; a perforating section for boring at least one filing hole in a sheet being transferred; and a sticking section for sticking a reinforcing pad on the sheet about the periphery of the filing hole. The perforating section comprises a punch cutter for boring the filing hole in the sheet transferred.

Abstract: Disclosed herein is a sheet cutting apparatus suitable for use in pre-cutting off an edge portion of a sheet of a large area. The apparatus comprises a sheet transfer mechanism; a first rotating shaft rotated through the torque of a motor; a turnable frame attached angularly movably along a circular orbit to the first rotating shaft; a second rotating shaft supported rotatably by the turnable frame so as to extend in a radial direction of the circular orbit of the turnable frame and meshed with the first rotating shaft to rotate therewith; a cutter blade and a backing blade, both, rotated by the torque of the second rotating shaft; and a turn control section for angularly moving reciprocally the turnable frame between an initial position at which the surface of revolution of the cutter blade and backing blade extends in a direction transferring a sheet and a separated position at which the cutter blade and backing blade turn aside from the transfer path of the sheet.

Abstract: A sheet folding apparatus comprises a feed roller mechanism consisting of a pair of roller adapted to feed a sheet clamped therebetween, a working roller mechanism mounted on the outlet side of the feed roller mechanism consisting of a central roller, a press roller in press contact with one side of the central roller, and a shift press roller in press contact with the other side of the central roller, and a shift guide mechanism mounted between the feed roller mechanism and the working roller mechanism. The shift press roller of the working roller mechanism is held for shifting movement between a first or access position where it is opposed to the press roller and a second or shifted position where it is in press contact with the other side of the central roller, along an outer peripheral surface of the central roller in a condition remaining in press contact with the central roller.

Abstract: A system of image formation in combination with a facsimile recording system in which a latent image is formed on a photosensitive plate through an optical projection device by light spots. The surface of a flying spot scanner tube is scanned sequentially and then the image is changed into a toner image. A projection surface of the optical projecting device is positioned along the movement path of a photosensitive plate retaining member having two photosensitive plates at the symmetrical positions on the member, and these two photosensitive plates are moved to pass the projection station and the transfer station alternately. In addition to the optical projection device, at least a charging device, a developing device and a transferring device are disposed along the moving path of the photosensitive plates and a d.c.