The Film Renter and Moving Picture News (Mar-Apr 1923)

64 THE FILM RENTER & MOVING PICTURE NEWS. (Technical Supplement). April 14, 1923. THE FORTHCOMING LEIPZIG SPRING FAIR Novelties in Projection Machines. (From our Leipzig Correspondent). HI progress which has been made in recent years on the technical side of the film industry, and the attention | minds in Germany, render the forthcoming Leipzig Spring Fair an event of particular significance to all who are interested in the technics of the industry, and a large attendance is expected. Attached to the Leipzig Fairs there is a special fair for ‘* inema and Photography "’ as well as for the related branch, ‘‘ Optics and Fine Mechanics.’’ This fair is attended by the leading German firms and is of great and international importance, exhibiting, as it does, the most varied improvements and novelties. STATIONARY PICTURES. | Isspecially as regards projection valuable work has been done. The apparatus for school and scientific purposes have been essentially improved and changed so that all kinds of possibilities in their use have been developed. Most important, for instance, is the ingenious combination of film and stationary picture, by which the film may cease and a diapositive representation at once take its place. The Ica Company, Dresden, supplies projectors for this purpose, in which the lamp-case swings round so that the apparatus can be readjusted within the space of a few minutes. The Krupp-Ernemann-theatre machine, ‘*‘ Imperator,’’ is less complicated and more easily managed. It is fitted with a mirror contrivance with special condenser. The transition from film to dia-projection is attained by simple pressure upon the lever which guides the mirror;.a displacement and necessary regulation of the arc-lamp is thus avoided.. It is scarcely necessary again to.emphasise the value of such an apparatus for school and scientific purposes. In scientific representations it is so often necessary to keep particular pictures before the eyes of the spectators. Formerly it was extremely difficult to bring the film to a stand-still and to keep single pictures stationary even for a few moments on the canvas. Naturally, this ‘* standstili ’’ contrivance, which can be fixed to almost any apparatus, marks enormous progress in kinema technique. FIRE PREVENTION. Another valuable improvement is the contrivance to do away with the risk of fire during a performance, whether in picture palace, school, or house. In this point the svstem of the German Film Company, Bremen, is rather complicated and not easily put into practice. The arrangement allows of the burning film being stopped, and. by means of a simple pressure, being led into a basin. The fluid in this receptacle extinguishes the fire at once and has the advantage of not damaging the film. A much less complicated contrivance is the ‘‘ Aero”’ film fire-extinguisher of W. Reichmann and Co., Hamburg. Complete protection against fire is guaranteed, for the hot rays of the lamp are made harmless by being cooled in air. A motor combined with a special blower generates a stream of air which, by means of a tube and suitable mouthpiece, is led against the film window, so that even in the case of hour-long representations the ignition of film strips, or parts of same, is quite impossible. Another advantage of the ‘‘ Aero ’’ is that the film can stand by the inteneest light for as long as desired, and this apparatus and the film itself are entirely protected from dirt and dust. The Landlicht-A. has also brought out a stand-still contrivance with air-cooling which also provides safety against fire. When the film stands a ventilator comes into action which exposes the film to a strong draught and thus avoids the risk of fire. NEW PROJECTION FEATURES. Of the new projection apparatuses that of the Aktiengesellschaft fiir Feinmechanik, Minchen, the ‘ fliegende Feinakhino,’’ is the most outstanding; the construction is most ingenious and it is fitted up in a model way. The worth of this projector lies in its most efficient mechanism and in the easy management of the apparatus. All the different parts of the works are enclosed. The film during ‘its whole course is thus projected, so that the danger of fire is practically impossible. The film spools are side by side in a fire-proof metal case, and so the usual fire-proof drums, always a disturbing element in the outward appearance, are unnecessary. We must also men. tion the absolutely reliable stand-still contrivance and the switch to make the film move forward or backward. The apparatus of the Ertel-Werke-A.-G., Miinchen, are also furnished with important improvements and uovelties. The theatre machine ‘* Primus,’ is now supplied with a contrivance for the transition from film to die-projection. Notable in this case is the fact that the lamp-case need not be disturbed, nor, indeed, the inoving mechanism, and also a new adjustment of the optical axis is unnecessary. This apparatus is characterised by its noiselessness aud the easy shifting of the pictures. ‘‘ Elekta III,”’ of the same firm, is fitted with a small lamp-case magnetic stand-still contrivance and a mirrored are-lamp. A CABINET MACHINE. An uncommon novelty is the ‘* Kinola,’’ of the KruppJurremann-Werke, a cabinet machine suited for theatre, school, ind house. Folded together the apparatus measures 38 inches x 25 x 17, and is an clegant piece of furniture which no one would ever take for a kinema apparatus. It is easily managed anid can be attached to every lighting conduit, so that there are many possibilities of usefulness. The same firm has also the high frequency kinema, ‘‘ Zeitlpue,’’ a valuable discovery for scientific purposes. By its means quick and quickest happenings otherwise impossible to discern, are held fast. AUXILIARY MACHINES. Or the film auxiliary machines of this firm we may mention the copying machine, ‘‘ Regina.’’ The film passes continuously, the start is given by a motor, and the source of light is a vlow-lamp. Another important machine for the big film trade is the film-cutting and pasting machine, ‘‘ Schneidkleber.’’ It has been brought out by the same firm and seems eure to bring about great changes in the film-working branch. Film-pasting becomes a pleasure, especially as the work is absolutely accurate and may be done by any inexperienced person. Then Kurt Veittinger, Karlsruhe, has a developing machine, ‘‘ Rekord.” This firm brought out ‘‘ Gnom'’’ for the smaller industry, a valuable asset, but ‘‘ Rekord ’’ is for endless pieces and so specially suitable for copying establishments. It develops, fixes, colours, washes, and dries; its efficienev is practically unlimited. Among the new technical lighting articles the special transformers of Kérting and Mathiesen, A.-G., Leutzsch-Leipzig. descrve mention. Their chief advantage is that the tension Is continuously regulated without contacts. These are the main novelties of the German kinema and filtn technique with whieh one comes into touch at the Leipziy Kinema Fair. It will be seen from them that the German industry exerts itself not only to develop technical possibilities to provide entertainment, but also for educative and scientific purposes, and that the novelties to be seen at Leipzig are likely to attract buvers from many important centres. Water STEINHAUER, Leipzig.