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116 The Optical Magic Lantern Journal and Photographic Enlarger. 11873. 30th June, 1900. Alfred Julius Boult. (Karl Y g, Kutzbach and Hermann Barkert, Germany.) |; aay A process and apparatus for the reproREMAP _ GELS duction or representation of objects in ; é . relief or intaglio by the aid of photography. ° Détes and Queries. ° 12113. 4th Jnly, 1900. William Knight Gregory. | Improvements in orthoptics or spectacles to | : facilitate the aiming of rifles and the like. OAR” 12181. 5th July, 1900. Frederic Eugene Ives. Improvo(com ice alia apparatus. E. Dunmore.—We note the change. 12208, 7th Jay 1900. Henry William Short and Sidney B. Cope.—No doubt the toy is very ingenious,
Herbert Edward Hughes. in book-form kinetoscopes. 16th July, 1900. George Frederick Hatton and Alfred North Whitehead. Improvements
Improvements
exhibiting cinematographic pictures. 12929, Malin. Improvements in lanterns.
13076. 19th July, 1900. Walter Pelham Warren.
but it is not at allan our line. Consult some wholesale toy dealer.
IV. O'Hare.—The set of Boer slides you allude to is
: published by York & Son, 67, Lancaster Road, Notting
in apparatus for taking and viewing or —
1Sth July, 1900. John Thomas Wood and James .
Hill, W. The slides are 12s. per dozen plain, and 248. per dozen coloured. Letter sent by this post.
W. Butler. —We shall endeavour to have an article on
' the subject shortly.
Improvements in and relating to apparatus °
‘for the production of moving or living pictures.
Q4th July, 1900. Sydney Elliot Pages. (The Grenier Art Company, United States.) Improvements in coloured photographs and the process of making them. (Complete.)
13317.
Copies of the following specifications may be obtained by remitting 1/for each specification to W. P. Thompson & Co., Patent Agents, 322, High Holborn, London, W.C.
SPECIFICATIONS PUBLISHED.
1899. Kamm. Hlectric arc lanterns.
1899. Edwards. Method and means _ of changing (either rapidly or otherwise) the sensitivo surfaces in taking photographs or for displaying the views in rapid succession in animated photography or the like.
1899. Malke. Apparatus for exhibiting “living pictures.”
1900. Goertz. Focal adjustment for nocular optical in3truments. 1900. Fulgora. Apparatus for images of opaque pictures
objects upon screens.
1900. Messter. Apparatus or mechanism for
15967 of proj<cting
12497 of
16326 of
1772 of bi
8991 of projecting
9141 of
the exhibition of animated photographs or.
pictures.
1899. Wray. Coin-freed apparatus exhibiting series of photographs.
1900. Hauenstein and Cleckner. producing pictures in relief.
1899 Selle. Manufacture of selective colour light filters for photo optical purposes.
1899. Selle. Sensitising and relative sensitive adjustment of photographic plates or the like for use in colour photography, and to the measurement of time exposure of said
plates.
1899. Selle. Formation of films for use in colour photography.
1899. Belbin. Support for focusing cloths and screens fcr photographic and other lenses.
1899. Garchey. Colour photography.
1899. Malke. Coin-freed apparatus exhibiting living pictures.
1900. Ives. Pbhotochromoscopic apparatus. (Date applied for under International Convention, March 9th, 1900.)
15480 10729
of for
of Methcd of 12515 of
12516 of
12517 of
15693 of
19343 16327
of
of for
12181
and other ;
| another name for the Kaleidoscope. i obtain ready for attaching to lantern for about 37s. 6d.
Lister.—The material you enclosed in your letter is the next best thing to an opaque screen.
A. H. Vidler.—The slides marked with a capital “CO” with a small ‘“c’’ inside may be obtained from Messrs. Watson & Son, 313, High Holborn, W.C.
H. writes that he has great difficulty in making a good connection between his automatic gas regulator and cylinder, and that however tightly he screws it in, there is still a leak. He has tricd whitelead, putty, and a washer of leather, but cannot overcome his difficulty. Aus.— Make a very thin washer of soft lead, leaving, of course, a hole in the centre, and interpose this between the regulator and bottle, screwing up moderately tight; this should mend matters.
N. Pachkovsky (Russia).—Meesrs. Wrench & Sons address is 50, Grays Inn Road, London, W.C.
J. Downey «: Sons.—We are unable to learn that the
Kaleidograph is still on the market, but it was only This latter you can
through any dealer.
Generator.—We would recommend you to communicate with Mr. R. J. Moss, of Birmingham. Besides being an authority on acetylene generators, he deals in every good make upon the market. State your definite wants, but first read the article by him in this and last journal.
Constunt Reader (Birmingham).—You give neither name nor address.
Sopp pee Pee pe bp
NOTICE. _ssamntt
We are requested by the Publishers to announce that as our next number will be a special one to mark the commencement of the season, they intend printing an extra large
: number of the October journal, and will be
pleased to send a copy free by post to anyone interested in lantern work. If any readers have friends, either at home or abroad, to whom they would like a copy sent, will they kindly forward names and addresses as soon as possible.