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The photographic news
- Bandzählung
- 27.1883
- Erscheinungsdatum
- 1883
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- Englisch
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- Hochschule für Grafik und Buchkunst Leipzig
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- Hochschule für Grafik und Buchkunst Leipzig
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- http://digital.slub-dresden.de/id1780948042-18830000
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- oai:de:slub-dresden:db:id-1780948042-18830000
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- LDP: Historische Bestände der Hochschule für Grafik und Buchkunst Leipzig
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- Bandzählung
- No. 1291, June 1, 1883
- Digitalisat
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Zeitschrift
The photographic news
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- Titelblatt Titelblatt I
- Register Index III
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platinum. Close to the latter is fixed a second sheet in such a way as to leave a small passage between them ; this passage is illuminated by rays concentrated upon it by a converging lens. After traversing the passage or slit, the breadth of which varies with the vibrations produced, the light rays pass to a photographic film and impress it. This photographic film is, however, moving rapidly in a perpendicular direction to the luminous line traced by the slit between the two plates, and thus a photograph of curves is produced corresponding to the sounds produced. In the case of vowels, the curves are very simple, but the consonants give complicated figures resembling those Koenig has obtained in his well-known flame experiments. The New York Herald has been reviewing the list of suicides in New York during the last fifteen years. The Herald observes that “ Photographers with plenty of deadly compounds at hand rarely avail themselves of these poisons, but prefer some other mode of death.” We are not sure whether this fact gratifies us, or the reverse. The point, perhaps, is not worth discussing ; but we fancy that in England photographers with suicidal mania have a proper pride in their profession, and usually select cyanide of potassium. Do members of the House of Commons amuse them selves in their spare hours by having their portraits taken ? We ask the question because, on nearly every afternoon this week, a camera has been planted on the terrace facing the ruin, in the shadow of one of the buttresses, and oppo site the lens an undoubted photographic background and chair. On Monday the passengers on board the steamers took the liveliest interest in the arrangements; but the photographer apparently timed the operation of posing ad exposing when the boats were not passing. At least, this was the conjecture of the disappointed spectators who would have liked to have “assisted” in taking the por traits of Lord Randolph Churchill or Mr. Biggar. The Swing is a capital studio accessory, because the posing is always so natural; but it requires to be properly hung. The ropes should be short, to lessen vibration, and stout, so as to permit of being firmly clasped; the seat should be large and comfortable (there is no need to show it), and it must not be too near the ground. Then, if the lady is shown in the act of starting the swing, pressing back with one or both feet, she obtains a firm position, for she is almost standing upright. There is no difficulty in remaining quite still in this position for three or four seconds, or even longer; and with a young and merry model, the face may be pressed against one of the ropes, adding much to the piquancy of the pose, while ensuring greater steadiness. The position of the hands at once ceases to be a problem in a swing picture, for they always clasp the ropes gracefully and naturally ; while there is the advantage of showing a pretty foo into the bargain, without any attempt at display. The mounting of photographs on thick boards with no margin but the gilt bevelled edge ought, to some extent, to solve the difficulty which exists as to the sale of landscapes. In the old days it used to be the fashion to surround the photograph with an inordinate quantity of India tint and white cardboard, the rule, apparently, being that the smaller the photograph, the more liberal must be the supply of margin. The consequence was that, to keep them, one had either to go to the expense of framing, or had to be encumbered with huge folios. In the first case, the frames sprawled over the walls, taking up far more space than they were worth ; and in the second, the white margins got dirty and dog’s-eared from handling. No wonder there ceased to be any market for landscape photographs. The method of mounting without a margin seems, how ever, to obviate the drawbacks we have mentioned. Photographs so mounted can be framed inexpensively, or the frame and glass can be dispensed with altogether ; they can be kept in a drawer without the risk of the corners turning up ; and last, and not least, they can be handled without fear of soiling.. It would be a good thing if the public taste were to set in in favour of this branch of photography. Patent Intelligent. Grant of Provisional Protection. 393. Alfred James BEER, of the city of Canterbury, for an invention of “Improved photometer.”—Dated 24th January, 1883. Patents Granted in Austria-Hungary. M. Kolischer, of Vienna, for “ Revolving photographs, adver tisements, or luminous pictures.”—Dated 2nd October, 1882. Specifications Published during the Week. 4651. J. Y. McLellan, for “ Artificial light apparatus for photo graphing, &c.” This invention has for its object the construction of improved and convenient apparatus specially designed for the application in photography of the intense light obtainable by burning mag nesium in oxygen, the apparatus being, however, also advan tageously applicable for other purposes. In one modification of the improved apparatus, there is a glass globe made with a stoppered opening at its top, and having its bottom connected by two pipes or passages fitted with stopcocks to a vessel of cylindrical or other suitable form, which serves as a reservoir for the oxygen, and is placed in any convenient position at a lower level than the glass globe. The reservoir is fitted with a stop cock at its bottom end for discharging water, and with another stopcock for the admission of the oxygen from any convenient generator or source. One of the two pipes connecting the reser voir to the glass globe extends to the lower part of the reservoir, the other reaching the top only. The reservoir having been charged with oxygen, the glass globe is filled with water, and its top opening being closed, the stopcocks of the connecting pipes are opened. The water in the globe then passes into the reser voir, and its place is taken by oxygen, after which the stop cocks are closed. When using the apparatus, a suitable length of magnesium wire or ribbon is ignited, and introduced into the globe through the opening at the top. One filling of the globe with oxygen will serve for burning two or more pieces of mag nesium in succession.—Provisional Protection only. 4747, F. J. Emery, for “Photographic engraving.” My invention refers to an improvement on the Heliographic method of engraving of Niepce. This process of Niepce consists, as is well known, in coating a metallic plate or surface with a thin film of bitumen, exposing this to light under a transparency for a sufficient time, then dissolving away the protected parts (that is, those portions which have been screened by the opaque portions of the transparency) by suitable solvents, and etching by well-known methods. My improvement consists in the use of a
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