The Optical Magic Lantern Journal (October 1898)

The Optical Magic Lantern Journal and Photographic Enlarger. 147 through its centre into the glass plate, and as the top of the bridge is slightly roughened, and the wheel presses upon it, its revolution is noticeable ag the figure walks along the rope. The whole thing is ingenious and out of the common, and while the painting of mechanical slides at times leaves something to be desired, yet the effects are so striking that they form a welcome addition, even to the more ambitious dissolving view exhibitions. An Oxy-Hydro-Electric Lantern and Cinematograph. By ALFRED MEAGER. OW that the are light is coming more into use for lantern work I thought that the following might be of some little interest to a number of the py} readers of the Magic Lantern SS JournaL. It will be noted from va the photograph that the lantern itself is “Sin position on a tilting-frame, and as seen may be used in conjunction with compressed gases or the arc light at a moment's notice in accordance with the embodiment of my ideas and wishes, skilfully carried out by Messrs. J. H. Steward :— Firstly, as an electric bi-unial: The complete back, with its supply tubes, also mixed jets, can be instantly detached, the two arc lamps taking the place of the jets, and two inner flap-doors closing on same, thus forming a second back. Depending from the tilting-frame is the switchboard (end only seen), also instantly fixed or detached, fitted with main terminals, etc., double pole ‘cut out’ (fuse), ammeter and bell, all most carefully insulated. The back of board is covered with asbestos millboard. The two resistances (variable) are partly seen in position on extending support T (also asbestos covered) with lamps on top. Only one of the resistances ig required when using a single lantern. By the foregoing arrangements it is obvious that only very short and definite lengths of wire are requisite, everything being to hand and | within reach whilst manipulating slides, etc., so that the light can, if desired, be increased or otherwise for any particular slide, diagram, or effect. Secondly, for compressed gases: The arc lamps are removed, and the back, with its supply pipes and jets as before stated, slipped into place, yo : resistances, etc., would not be required. instantly clamped, and, well, there you are! In some places it might be advisable to have both forms of illumination in readiness (as seen), otherwise, if the are light is to be employed, the lantern itself is simplified by leaving the back, etc., at home, as already indicated. The cylinders stand on two concave iron ‘ shoes’”’ attached to the case, and the latter being on small iron wheels may be easily moved to any desired position in body of a hall. The cylinders are fixed at end of case when using gases, ae e case, further, I have made divisible (marked x), the upper part carrying lenses, etc., and fitted with extending hinged shelves for slides and such-like. The flat shelf s is shown folded up against the tilting frame; this shelf I utilise for slide-box to rest upon. Thirdly, as a cinematograph: My cinematograph apparatus slides into front base of lantern, the lower lens tubes being of course previously removed, and the upper portion may be used for showing various views, statuary, etc., whilst changing films. In conclusion, I may say that the whole arranegment, in either form, may be fitted up ‘ within five minutes. My lantern (as seen) is the ‘‘ Docwra”’ bi-unial by W. C. Hughes. CarrGh On ~—OHO< Puintipep WoLFrr’s CINEMATOGRAPHIC FILmMs.— The variety in the stock of films of this firm is now @ very extensive one, and it is being added to daily. Some of the latest of a sensational character include the Corsican Brothers, Photographing the ghost, Cinderella, Faust and Gretchen, and will doubtless have a large sale.