The photographic news

• Bandzählung: 35.1891
• Erscheinungsdatum: 1891
• Sprache: Englisch
• Signatur: F 135
• Vorlage: Hochschule für Grafik und Buchkunst Leipzig
• Digitalisat: Hochschule für Grafik und Buchkunst Leipzig
• Digitalisat: SLUB Dresden
• Rechtehinweis: Public Domain Mark 1.0
• URN: urn:nbn:de:bsz:14-db-id1780948042-189100009
• PURL: http://digital.slub-dresden.de/id1780948042-18910000
• OAI: oai:de:slub-dresden:db:id-1780948042-18910000
• Sammlungen: LDP: Historische Bestände der Hochschule für Grafik und Buchkunst Leipzig
• Sammlungen: Fotografie
• Strukturtyp: Band

• Digitalisat: SLUB Dresden
• Strukturtyp: Ausgabe

Went IEntelligente. Corresponence. Applications for Letters Patent. 9,844. Albert Aron, 23, Southampton Buildings, London, “ Improvements in Glazed Screens for Photographic and other Pictures.” (Adolphe Aron, France.)—June 10th. 9,906. Frederick Dresser, 20,Bixteth Street, Liverpool, “Im proved Adjustable Photographic Printing Frame.”—June 11. 9,971, Abraham Dirk Loman, 186, Fleet Street, London, “ Improvements in or Pertaining to Portable Photographic Cameras.” —June 12 th. ■ 9,984. James Gray, 4, York Street, Neweastle-on-T’yne, “ A New Permanent Photographic Printing Process.”—June 12th. 9,985. Charles Haseler and Charles Eustace HASELER, Cherry Street, Birmingham, “Improvement in Cameras.” —June 12th. 9,993. Edward Thomas Hughes, 38, Chancery Lane, London, “ An Improved Pencil for Retouching Photographic Nega tives, Bromide Prints, and the like, applicable also for Ordinary Drawing Purposes.” (Edmund George Kerby, South Africa.)—June 12th. Specifications Published. 669. January 14th, 1890.—“Actinometers.” E. G. Ballard, 1, Eversley Park, Chester. An instrument for ascertaining requisite time of exposure in photography, applicable also in other cases where the rela tive intensity of actinic rays is to be ascertained. A tube blackened internally is provided with an eyepiece and a hinged eap, in which are inserted a disc of ground glass, a disc of plain glass covered with an opaque annular layer of luminous paint, or the like, the central space being left transparent, a piece of blue glass, and a piece of ground or plain glass. The piece of blue glass cuts off all the rays entering the tube except the actinic rays corresponding to those emitted by the luminous paint ; it is wrapt in a number of layers of translucent material, such as tissue paper, which lessens the intensity of the rays passing into the apparatus, the degree of obscurity being constant for each type of photographic plate. The cap is turned to expose the luminous paint; when this is fully excited the eye is placed against the eyepiece, the instrument directed towards the object to be photographed, and the hinged eap quickly closed. There will then be visible a blue luminous band surrounding a darker spot. The time taken by the band to assume the same tone as the spot is noted, and from this, by reference to a suitably prepared table, the requi site time of exposure may be determined. 765. January 15th, 1890.— “Change-box combined with Camera.” N. Browne, 73, Cheapside, London. (F. A. Fichtner, Elisenstrasse 6, Dresden, Altstadt, Saxony.) The sensitive plates are contained in two compartments formed by a transverse partition. The plates are fitted in sheaths or carriers. After exposure, the plates are transferred from one compartment to the other by spring hooks on the ends of racks, which gear with toothed pinions on the axis, which is actuated by a crank outside the box. A fresh plate is thus introduced at the back of one compartment every time an exposed plate is removed from the front. Both compart ments are thus always full, except in so far as space is always left to introduce another plate. Suitable springs are fitted in the spaces left to press the plates together. • Messrs. Taylor, Taylor, and Hobson forward a sample of a new level for cameras. One of these, used on the side of a camera swing-back, will insure the avoidance of the vertical distortion which is so often noticeable in photographs of - buildings, &c. Another on the back —ec •. i of the camera frame will insure its ha 5VIIIII true horizontal position. The firm’s TI•UU, circular spirit-levels and T levels, E which serve the two purposes at once, —— must be placed on the top of the camera, and as this position is inconvenient in the case of cameras on high tripods, they have designed the new level to be placed low down on the side and back of the camera, where it is more accessible. THE PHOTOGRAPHIC CONVENTION AT BATH. Sir,-—Will you kindly allow me to draw the attention of your readers to the forthcoming meeting of the Photographic Con vention at Bath ? In the first place, I would point out to those who are not already members, that the Convention has amongst its adherents a very large proportion of the best-known amateur and pro fessional photographers in, the kingdom, and affords the best existing means of bringing together photographers from all parts of the country, and thus enabling them to meet their fellow-workers in the art, and discuss with them its later deve lopments and the means of promoting their common interests. The president at theBath meetingwill be Mr. William Bedford, whose name and work are familiar to every photographer, and his well-known tact and skill in the conduct of affairs are a guarantee that the control of the arrangements, and the guidance of the discussions which it is hoped will follow the papers, will be in safe hands. With the help of our friends at Bath, we have been able to arrange a programme which, both from the point of view of excursions and papers, will compare favourably with that of previous years. The railway companies will not give special terms to members on their journey from their homes to Bath, but members from a distance are recommended to avail themselves, as far as possible, of the ordinary tourist tickets. We shall, however, have considerable facilities for making excursions from Bath, either singly or in parties. During the week of the meeting, the Great Western, the Midland, and the Somerset and Dorset Railway Companies, will issue to any member, on production of his siyned ticket of membership at the booking office at Bath, return tickets at a single fare to any station on their respective lines not more than fifty miles distant. The excursions are of special interest, and, as already announced, include Chepstow and Tintern, Glastonbury and Wells, Salisbury, Corsham and Lacock Abbey, Bristol and Clifton. In addition, the local committee has obtained per mission for members to photograph in the churches and other places of interest in and about Bath. The papers are fewer in number than in previous years, with a view to prevent hurry, and to give time for discussion, which hitherto has often been cut short in order to make way for the following papers. The paper by Mr. W. Lang on “The Photographic Work of Herschel and Fox Talbot,” and that by Mr. Common on “ Recent Work in Astronomical Photography,” are especially appropriate at a meeting in a district that is so intimately associated with the names of Fox Talbot and of Herschel. One very important feature of the meeting will be the final report of our Lens Standards Committee, and the discussion thereon ; and the discussion on “ International Standards” that Mr. Warnerke has promised to open. It is hoped that every one interested in this important question of standards will take part in the discussion, and that we may afterwards be able to appoint a committee to draw up a report or series of recom mendations for presentation at the forthcoming International Congress in Brussels. The Convention group will be taken on the Wednesday, and the dinner, which has always been such a great success, will, as usual, take place on the Friday evening. । In order that members may know where they are most likely to meet their friends, two hotels, the “ Castle,” in Northgate Street, and the “Royal,” near the Great Western Station, have been appointed headquarters. An exhibition of lantern slides will form one of the features of the opening meeting, and it is particularly requested that members who have slides of places visited at the last Conven tion, whether actually taken during the Convention meeting or not, will send them to me at the Yorkshire College, Leeds, or to Mr. W. Bedford, 326, Camden Road, N., at least a week before the opening meeting. Slides of other subjects will also be acceptable for exhibition either on that evening or at the other evening meetings.