Abstract: An air guiding device of a motor vehicle body of a motor vehicle includes a slat arrangement having at least two slats arranged to be rotatable about their axes of rotation. The two slats are operably connected to a coupling rod for motion transmission. A coupling unit is formed between the slat and the coupling rod. The coupling unit includes a first coupling element and a second coupling element. The second coupling element encompasses the circumference of the first coupling element. A securing element of the coupling unit is designed for the secure connection between the first coupling element and the second coupling element. The securing element extends from the first coupling element in a radial direction.

Abstract: An improved motion picture film projector (100) comprises a Geneva Mechanism (120), which intermittently drives a film (114). A light source (116) projects light through the film (114) and a shutter (106) periodically interrupts the light source (116). The shutter (106) has a blade with a shaped edge, which matches the frame shape on the film (114) thus, increasing the amount of light that is transmitted through the film (114). A second edge of the blade also matches the frame shape on the film (114) further increasing the amount of light transmitted through the film (114).

Abstract: A method and mechanism for adjusting the timing of a camera in the reverse mode while allowing for separate adjustment of the timing in the forward mode. In a preferred embodiment, an external switch is provided which when actuated switches the camera between the timing setting for the forward direction and the timing setting for the reverse direction. A helical driven gear which engages a drive gear driven by the motor is axially translatable between a first position corresponding to the forward direction and a second position corresponding to the reverse direction. Since it is a helical gear, the amount of axial translation adjusts the relative angular position of the shutter with respect to the frame advance mechanism.