The Optical Magic Lantern Journal (May 1896)

88 The Optical Magic Lantern Journal and Photographic Enlarger. Durinc the spring and summer months busy brains will be at work devising improvements and novelties for the next lantern season. It is difficult to foretell in what direction the improvements will be. No doubt we shall have impreved forms of jets, and probably one or two acetylene generators will be in evidence, should a good supply of calcium carbide be available. OF portable single lanterns we have a great variety, many of them being very satisfactory instruments, but I think attention might be profitably directed to our bi-unial lantern. Perhaps, in many cases, it is necessary that it should present an ornamental appearance, but much could still be done to render it a less unwieldly and cumbersome instrument than it is at present, without lessening its stability and other good qualities. :0:———_ New Apparatus. ‘“ BESSUS ” JET CENTERER. Messrs. Airs & Co., of 84, Hatton Garden, have made some modification in the centerer which they first brought out. As now made, it hangs from the rackwork as shown. The whole appliance can be obtained ready for screwing on the back of lantern, to which any commercial jet may be clamped. By means of the milled heads, the jet can be raised, lowered, brought to or from the condenser, and moved sideways, all from the back of the lantern. The great accuracy with which the light can be centered makes this appliance very useful in connection with microscopic projection. Patent Intelligence. the following list, relating to current Patent Applications, is compiled expressly for “ The Optical Magic Lantern Journal” by a registered Patent Agent. For further information apply to The Patent Department, ‘' Optical Magic Lantern Journal,” 9, Carthusian Street, London, EC. No. Recent PaTENT APPLICATIONS. 5606. 12th March, 1896. Bouet (KE. Rousseau). Improvements in or relating to burners for acetylene gas. . 17th March, 1896. EH. Appleby and H. F. Harris. An apparatus for automatically and safely generating and storing acetylene. 20th March, 1896. M. Freudenberg. A method of and apparatus for taking and viewing photographic pictures. 21st March, 1596. W. Hunt and T. Trotter. Improvements in kinographic and kinoscopic apparatus. 24th March, 1896. G. W. de Bedts. Improvements in the mechanism of chromo: photographic, kinetoscope and lantern projection apparatus. 26th March, 1896. A. I. Bingemann. Improvements in magic lantern slide carriers, whereby the slide is tinted or coloured during projection. 27th March, 1896. J. H. Rigg and IE. Kumberg. Improvements in kinematographs, kinetographs, and like apparatus. 27th March, 1896. J.C. Bayley. Improvements in apparatus for generating and storing acetylene gas, especially suitable for use in portable installations. 2nd April, 1896. E. Smith. Improvements relating to magic lanterns and other Projection apparatus. 9th April, 1896. B. Doyle. Improvement in combined cameras and optical lanterns. 9th April 1896. W. Hampson. Apparatus for separating mixed gases by refrigeration, especially applicable to the separation of oxygen from air. 11th April, 1896. P. Woog. Improvement in or relating to lamps and apparatus for the generation and combustion of acetylene gas. 5976. 6245, 6294. 6503. 6637. 6731. 6739, 7241. 7528. 7559, 7693. RECENTLY-PRINTED SPECIFICATIONS. Copies of the following specifications may be obtained by remitting I/for cach specification to The Patent Department, ‘* Dptical Blagic Lantern Journal,” 9, Carthusian Street, London, L.C. 24766 of 1894. ° Millward. Cyclorama. 1116 of 1896. Rossbach-Rousset. Acetylene gas. ——:0:—_ Editorial Table. ARCHER’S “CaTALOGUE.—A neat, well-printed, and attractive catalogue has been issued by Messrs. Archer & Sons, 43 to 49, Lord Street, Liverpool. It commences with & short chapter “ To the beginner in Photography,"