US1872322A - William george moore - Google Patents

William george moore Download PDF

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Publication number
US1872322A
US1872322A US38798229A US1872322A US 1872322 A US1872322 A US 1872322A US 38798229 A US38798229 A US 38798229A US 1872322 A US1872322 A US 1872322A
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arc
electrodes
rays
alloy
electric
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Expired - Lifetime
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/06Radiation therapy using light
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/04Electrodes; Screens; Shields
    • H01J61/06Main electrodes
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B31/00Electric arc lamps
    • H05B31/02Details
    • H05B31/06Electrodes
    • H05B31/14Metal electrodes

Definitions

  • This invention comprises improvements in electrodes for electric-arc germicidal treatment.
  • Therapeutic treatment of animals as well as human beings
  • the constitution of the materials used for the electrodes or otherwise for introducing particular characteristics into the rays from the arc is of great importance.
  • Research on this subject involves several considerations (apart from those relating to the composition or production of the electrodes). Firstly, it is desirable to make a spectrum analysis of the rays obtained from an are using the material to be tested. Secondly, the penetration of the rays through animal tissues should be tested, and it is essential that the degree of penetration should be high. Thirdly, it is necessary to test the therapeutic action of the rays, i. e. the direct or indirect bactericidal action. A series of such tests have been made with various alloys.
  • an alloy for electric arc germicidal treatment consists of an alloy whereof the essential constituents are a preponderating proportion of tungsten to ether with chromium.
  • the alloy preferably contains also titanium.
  • the proportion of titanium may vary but a preferred proportion lies between 1% and 5%, best results bein obtained at about 2% for selected cases.
  • lhe proportion of chromium may also vary, the preferred proportion lying between 4% and 2%, with best results at about for selected diseases.
  • the effect of the presence of titanium and chromium in the alloy is to increase the radiation in the wave lengths which are most effective for germicidal purposes. In dealing with particular germs better effects may be obtained in some cases with one proportion and in other cases with another proportionof these constituents.
  • the spectrograph of the alloy, when compared with that of tungsten shows many additional lines in what scientists describe as the vital region of the spectrum.
  • electrodes 11, 12 are supplied from a source of electric energy 13 through a regulating resistance 14. Between the electrodes an arc ma y be struck, and the usual means of regulating the are are provided. A reflector 17 or other means for concentrating the rays may be provided.
  • a vessel 15 for bacterial cultures is shown in the line of rays of the arc, covered by a piece of animal hide 16.
  • the electrodes 11, 12 which may -be about one quarter of an inch square are both composed of an alloy as above referred to, say for example 97.5% tungsten, 2% titanium and chromium. .It is found that the rays and light emitted from the resulting arc is of peculiar penetrative and germicidal power, being rich in rays of those wave lengths which are most efi'ective from this point of view. In a particular test electrodes inch thick and square in cross-section were employed, made from an alloy of the particular composition just referred to. It has been found that the size of the electrodes has an influence on the results, better results being obtained with large electrodes.
  • the same general methods are employed as are in general use for making tungsten bars for wire filaments for electric lamps, suitable q zantities of finely divided titanium and c romium'being introduced into the tungsten powder before moulding and sintering; the electrodes may be subsequently worked or swaged to make solid bars.
  • the percentage of chromiumemployed should vary proportionately to the percenta e of titanium.
  • the proportions given are ased. on end productsi. e. on the finished electrode-bars, not the uantities initially mixed before sintering. lln manufacture, suitable allowance for loss must be made, the appropriate quantities being best determined by a simple preliminary trial under the particular conditions of manufacture employed.
  • electrodes according to the invention is not limited to therapeutic treatment of bacteria in human beings or animals, but may alsobecar- 95 ried out on vegetables, fruit, plants, milk and the like, for destroying germs, and for other purposes.
  • I claim 1 An are light electrode for electric-arc therapeutic ray-treatment comprising an alloy. whereof the essential constituents are tungsten with from 1% to 5% of titanium and from 4% to 2% of chromium.
  • An are light electrode for electric-arc 85 therapeutic ray-treatment comprising an alloy consisting of tungsten approximately 97.5%, titanium approximately 2% and chromium approximately 5%.
  • An are light electrode for electric-arc therapeutic ray-treatment as claimed in claim 2 having a cross-sectional area of approximately one-sixteenth of one square inch, the lower limit of variation in said crosssectional area being about one-twentieth of one square inch.

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  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Anesthesiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Vascular Medicine (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Electrotherapy Devices (AREA)
US38798229 1929-01-10 1929-08-23 William george moore Expired - Lifetime US1872322A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB87129 1929-01-10

Publications (1)

Publication Number Publication Date
US1872322A true US1872322A (en) 1932-08-16

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ID=32407370

Family Applications (1)

Application Number Title Priority Date Filing Date
US38798229 Expired - Lifetime US1872322A (en) 1929-01-10 1929-08-23 William george moore

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US (1) US1872322A (es)
NL (1) NL27407C (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821658A (en) * 1954-07-01 1958-01-28 Bomac Lab Inc Arc-limiting shields for high frequency gaseous electric discharge switching tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821658A (en) * 1954-07-01 1958-01-28 Bomac Lab Inc Arc-limiting shields for high frequency gaseous electric discharge switching tubes

Also Published As

Publication number Publication date
NL27407C (es) 1932-06-16

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