File:"Roentgen" induction coils and other X-ray apparatus (1903) (14754833874).jpg

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Identifier: roentgeninductio1903jame (find matches)
Title: "Roentgen" induction coils and other X-ray apparatus
Year: 1903 (1900s)
Authors: James G. Biddle Company
Subjects: X-rays Induction coils Radiography
Publisher: Philadelphia : James G. Biddle
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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Text Appearing Before Image:
Figure 4. Type E Coil for Electrolytic Interrupter. Type E coil is similar to Type A in its construction ex-cept that it is without condenser or interrupter as it is specially de-signed for use with the electrolytic interrupter which is listed sepa-rately. A Rheostat is necessary when the electrolytic in-RhGOststs. • • terrupter is used. We furnish two sizes of rheostats; one for coils of 15-inch spark or more and one for coils of less than 15-inch spark. The rheostats are made to order for our own special use and are of ample capacity. Prices. B3025. i8=inch Type E Coil $340.00 B3026. I5=inch Type E Coil 270.00 B3027. i2=inch Type *E Coil 210.00 B3028. Large Rheostat for Coils of i5 = inch spark or more, mounted on finely polished tsble as shown on page 7 . . 50.00 B3029. Large Rheostat, unmounted 30.00 B3030. Medium size Rheostat unmounted, for Coils less than i5=inch spark 20.00 James G. Biddle, 1114 Chestnut Street, Philadelphia. Portable Coil.
Text Appearing After Image:
Figure 5. Roentgen Portable Induction Coll, Type P. Of the portable coils yet produced this is by far the most power-ful. It gives a 9-inch spark which is thicker and fatter than that ob-tained from any portable coil of equal or less spark length. An adjustable mica condenser with a Roentgen Self-Start-ing MecHanical Interrtipter is mounted in one case, whilethe coil proper is in the other. The adjustable Condenser S-witcH is in the upper righthand corner of the condenser case, while the Pole-CHangingSwitcK is in the upper left hand corner. The Interr\ipterSMritcH is below the Condenser SMritcK and the Operat-ing S-witcH is below the Pole-CKanging SwitcH. These switches are operated in the same manner as described onpage 13. Leather straps are provided on both cases for convenience incarrying. The coil is best operated on 20 volts direct current from battery ormotor generator, although it can be used on somewhat lower potential. Price.B3040. 9=inch Type *P*Coil $200.00 10 James Q. Bid

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  • bookid:roentgeninductio1903jame
  • bookyear:1903
  • bookdecade:1900
  • bookcentury:1900
  • bookauthor:James_G__Biddle_Company
  • booksubject:X_rays
  • booksubject:Induction_coils
  • booksubject:Radiography
  • bookpublisher:Philadelphia___James_G__Biddle
  • bookcontributor:Francis_A__Countway_Library_of_Medicine
  • booksponsor:Open_Knowledge_Commons_and_Harvard_Medical_School
  • bookleafnumber:14
  • bookcollection:medicalheritagelibrary
  • bookcollection:francisacountwaylibrary
  • bookcollection:americana
Flickr posted date
InfoField
27 July 2014

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