Abstract: An improved film transport assembly is provided for intermittently advancing film, without pulldown claws or similar mechanisms for engaging film perforations to obtain intermittent transport, with extended dwell period past the film gate of a camera or projector, particularly such as a motion picture camera or projector adapted for high speed film transport or for handling relatively large film formats. The transport assembly includes film supply and takeup sprockets for constant velocity film transport respectively to and from the film gate, with the film passing over a primary roller and a compensation roller interposed between each sprocket and the film gate.

Abstract: For a given shutter size, the effective illumination or light transmission period is increased by one half that of the angles subtended by the aperture. This increase is accomplished by providing, in addition to a first shutter having an opaque section in the case of a camera of at least 180.degree., a second shutter having an opaque section of an angle equal to that subtended by the aperture. The second shutter is coaxially mounted with the first shutter and caused to rotate at twice the speed of the first shutter. By initially aligning the leading edges of the shutters with the start of the aperture, the aperture is effectively covered and uncovered in half the time which would normally be required by using a single shutter providing the same film transport period alone. As a consequence, the period of illumination is increased by the referred to one-half of the angle subtended by the aperture.

Abstract: The film gate and registration system is used for motion picture film that is intermittently transported through a gate from one frame to the next. The arrangement is applicable to both motion picture cameras and projectors. A gate is provided with an aperture having solid marginal edge areas. Spaced pressure pads are arranged to be moved into and out of engagement with a film passing through the film gate. The pads press against the marginal edges of the film when the frame is in its dwell period in the gate either for exposure or projection. When the film is to be transported to the next frame, the pressure pads are withdrawn from the marginal edges and the film is lifted away from the aperture plane. In the preferred embodiment, registration indexing pins closely cooperate with the pressure pads in a special fashion to provide unusually precise positioning of each successive film frame at the end of the transport time.

Abstract: Spirane derivatives, most of them are new, useful, and as flavor-modifying ingredients for the manufacture of artificial flavors of for flavoring foodstuffs, animal feeds or, beverages.

Abstract: Spirane derivatives, most of them are new, useful as odor-modifying ingredients for manufacturing perfumes and perfumed products, and as flavor-modifying ingredients for the manufacture of artificial flavors of for flavoring foodstuffs, animal feeds, beverages, pharmaceutical preparations and tobacco products.Process for preparing said spirane derivatives.

Abstract: Spirane derivatives, most of them are new, useful as odor-modifying ingredients for manufacturing perfumes and perfumed products, and as flavor-modifying ingredients for the manufacture of artificial flavors of for flavoring foodstuffs, animal feeds, beverages, pharmaceutical preparations and tobacco products.Process for preparing said spirane derivatives.

Abstract: Spirane derivatives, most of them are new, useful as odor-modifying ingredients for manufacturing perfumes and perfumed products, and as flavor-modifying ingredients for the manufacture of artificial flavors of for flavoring foodstuffs, animal feeds, beverages, pharmaceutical preparations and tobacco products.Process for preparing said spirane derivatives.

Abstract: Spirane derivatives, most of them are new, useful as odor-modifying ingredients for manufacturing perfumes and perfumed products, and as flavor-modifying ingredients for the manufacture of artificial flavors of for flavoring foodstuffs, animal feeds, beverages, pharmaceutical preparations and tobacco products.Process for preparing said spirane derivatives.