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The Optical Magic Lantern Journal and Photographics Enlarger.
119
As will be seen from the illustration, the oxygen gas issuing from the nozzle c at high pressure sucks the low pressure hydrogen or other gas up through the channels EB, F, G, into a chamber t. The gases are then forced by the pressure of the oxygen in the nozzle c, through a number of apertures m into
é an annular groove kK, whence the mixture ascends the tube n to the burner nozzle.
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Editorial Table.
GUERQUIER’S Dry Pratres.—Messrs. Perkin, Son & Rayment, of 99, Hatton-garden, E.C., having recently been appointed agents for the dry plates manufactured by Messrs. Guerquier & Co., of Ghent, Belgium, sent us a few packets for trial. This we did during the holidays, and on developing, found them to be rapid, of fine gradation, and brilliant.
Wictiam Typar, of Birmingham, has, within the last few days, issued a neat and imposing catalogue, and has wisely made it of pocketsize. It has an attractive cover, and ia very complete in setting forth particulars and illustrations of everything required in either the photographic or lantern line. Some pleasing half-tong illustrations are also given in this book, which contains upwards of 150 pages. 4d. sent to Mr. Tylar, 41, High-street, Birmingham, will ensure a copy being sent by return of post.
CycLopzpIc PHotocrapHy.—London: Dawbarn & Ward, Limited. This large volume, practically written by various authors, and edited by Ed. L. Wilson, Ph.D., New York, forme a very interesting dictionary of photographic terms and processes. Of course such a book has taken a long time to prepare, consequently one expects to find, as in this case, that many of the processes of bygone days have received greater attention than some which are more modern, but nevertheless it forms a valuable reference book. Price 12s.
PHOTOGRAPH OF GROUPS, ETC.— Since writing the paragraph in Notes respecting the testimonial presented to Mr. Walter Tyler by the guests invited to his annual outing, we have received a photograph of same. Accompanying it were a photograph of a letter received in response to a telegram to Her Majesty at Windsor (containing congratulations on her birthday), and a large framed group of the guests at Marlow. In this case each of the photographs is a good portrait, although the group numbers over one hundred.
3“ GAMES, Toys AND AMUSEMENTS,” is a new monthly whieh is admirably printed. It is edited by Mr. Whitficld Crofts, who appears to have a good and interesting selection of matterat command. It is issued monthly at 2d., by Pitman & Son, London, E.C.
Lire Mopex Sripzs.--Mr. F. F. Weeks has submitted for our inspection several slides of '‘ Ben Hur—A tale of Christ.” In this case the figures were photographed against a white background and the scene afterwards sketched in on the print. Some time ago Mr. Weeks patented this process, but eventually ascertained that a patent on such could not be maintained. What is required in this case is artistic skill, and Mr. Weeks is one of the few who possesses this to the extent of making a successful picture. The rendering of such of his life model subjects as we have seen is of a high order.
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Patent Intelligence. |
The following list, relating to current Patent Applications, is compiled expressly for ‘The Optical Magic Lantern Journal” by a registered Patent Agent. Jor further information apply to The Patent Department, *‘ Optical Magic Lantern Journal,” 56, Chancery Lane, London, W.C,
No. RECENT PATENT APPLICATIONS.
10270. 24th May, 1895. S. and S. S. Walker. Implements in cylindrical iron and steel vessels for containing compressed gases, and in the manufacture of the same.
10712. 30th May, 1895. Hy. Brier and the Scotch and Irish Oxgen Co., Ltd. Improvements in oxy-hydrogen multiple jet apparatus.
11160. 6th June, 1895. Alfred Wrench. Improvements
connected with optical or magic lanterns. RECENTLY-PRINTED SPECIFICATIONS.
Copies of the following specifications may be obtained by remitting L[for each specification to The Patent Department, ‘‘ Optical Magic Lantern Journal,” 56, Chancery Lane, London, W.C.
7326 of 1894. Heskell. Gas cylinders. . 15 & 71 of 1894. Sciaxia. Condensing rays of light. 5730 of 1895. Lake (Dickerson and another). Acetylene
gas. 20181 of 1894. Davenport. Optical lanterns. 205 Correspondence.
TRADE TERMS. To the Editor.
Sir,—My attention has been called to an article in a pamphlet entitled ‘‘ Autotype Notes,” in which it is stated that the firm of Elliott & Son, of Barnet, have endeavoured by a back-handed method to secure work from those outside the profession at trade prices, at the same time pretending to work exclusively for the profession. I therefore take this opportunity of flatly contradicting this statement.
When I joined the firm my instructions were that trade prices should only be quoted to professional photographers and recognised dealers in photographic material, and these instructions I religiously carried out. As Ihad the entire business control of the works, lam in a position to most positively assert that every precaution was taken to prevent the firm's net price list falling into the hands