Abstract:
In a film scanner comprising a device for scanning sprocket holes, a projection device is proposed, by means of which the images of two sprocket holes are projected on one sensor. This provides the possibility of scanning two facing sprocket holes with only one camera.
Abstract:
A magnetic-tape-cassette apparatus includes a tape-loading device having supports (17, 18) which are longitudinally movable on guide members (19, 20) and are caused to perform oppositely directed synchronous movements by means of two traction-means drives (29 to 34) for the purpose of threading a magnetic tape (4). The two traction-means drives (29 to 34) are mechanically coupled by a third traction-means drive (35). Toothed belts (31, 34, 35) used as traction means are driven by a torque generated by an electric motor (36).
Abstract:
An apparatus for transilluminating a film includes a light source emitting a light beam for transilluminating the film, a film guide for guiding the film such that the light beam can transilluminate a section of the film, a film feed for feeding the film to the film guide, and a film removal for removing the film from the film guide. The film guide has a support designed for rotation about a rotation axis running through the center of the support and a rotationally symmetric circumferential surface. The film can be supported on the circumferential surface at least with part of the width thereof over a section of the circumferential surface. The light beam generated by the light source passes through the film when the film is supported on the circumferential surface at least with part of the width thereof over a section of the circumferential surface.
Abstract:
A tape drive mechanism for magnetic tape apparatus for tapes housed in cassettes has a pressure roller (29) at one end of a press-on lever (35) which is pivotally held on a drive shaft bearing (31) of a drive shaft (30) so that it can be inclined in a vertical plane. Another end of the press-on lever (35) has the guide cavity (37) in which a grade element (38) is held. The guide element is affixed at the end of a bascule lever (40) which is pivoted also on the supporting bearing (31) of the drive shaft (30). The bascule lever (40) is controlled by the progress of a tape threading operation of a tape loading device, the control being in the axial direction of the drive shaft (30).