The Röntgen rays in medical work (1899) (14570267798)

Identifier: rntgenraysinmedi00wals (find matches)

Title: The Röntgen rays in medical work

Year: 1899 (1890s)

Authors: Walsh, David

Subjects: X-rays Radiography X-Rays Radiography

Publisher: London : Baillière, Tindall and Cox

Contributing Library: Francis A. Countway Library of Medicine

Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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if correctly carried out, is so accurate andcomplete that the surgeon can have little cause for complaint. 3. Changing Box.—This consists of a frame over which is tightly stretchedsome calf-skin. This is stout enough to support a considerable weight, and at thesame time is thin and transparent to as-rays. The photographic plate, wrappedin black paper in the usual way, is placed beneath the skin, and supportedagainst it by some suitable arrangement. Fig. 23 shows the apparatus, and if itbe viewed with a stereoscope, its construction will be readily seen and understood.The horizontal bar shows the tube-holder displaced to one side, and the clip onthe right side is the limit to which it must be displaced for the second photo-graph. A wire is seen stretched on the nearer end of the box, and the bar is * On the Value of Stereoscopic Skiagraphy, etc., by Mackenzie David-son, M.B. (British Medical Journal, December 3, 1898). t The apparatus is made by Messrs. Muirhead and Co., Elmers End.

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a o h 14 m <) w < u ^ - AH p (3 <1 <j co CN 6 h ELECTRICAL APPARATUS AND METHODS 59 arranged parallel to this wire. This leaves a white line at the edge of eachnegative, and this enables the photographs to be mounted correctly in register.A board is seen below, and upon it will be noted the photographic plate wrappedin the black paper. By means of a lever worked by a screw at the far end of thebox, not visible in the illustration, this board is raised so that the plate is broughtfirmly up against the calf-skin. The part of the patient to be skiagraphed isplaced upon the top of the box. It will be easily seen how two photographs canbe taken on different plates without disturbing the position of the patient ; weare thus sure of obtaining correct stereoscopic pictures. This method can, ofcourse, be carried out by having a table made with calf-skin covering a space cutout of the top ; or, again, an operating-table can have a window, so to speak,covered by the calf-skin upon wh

Die Röntgenstrahlen in der medizinischen Arbeit 1899 Buchillustrationen Medizin medizinische Illustrationen Krankengeschichte Röntgen röntgen hohe Auflösung Bilder aus dem Internetarchiv

1899

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