An international system of electro-therapeutics : for students, general practitioners, and specialists . Fig. 6.—Atkinsons Toepler Electkic Machine. raised centres, which are brought into contact with the brushes as theplate revolves, and generate the electric charge, which is rapidly increasedby induction. Opposite parts of the plates and opposite inductors andcarriers become oppositely electrified, condensation takes place in the jars,and sparks pass between the sliding electrodes, which may be increasedto seven inches or more in length. Electricity is generated at once, andthe electric char
An international system of electro-therapeutics : for students, general practitioners, and specialists . Fig. 6.—Atkinsons Toepler Electkic Machine. raised centres, which are brought into contact with the brushes as theplate revolves, and generate the electric charge, which is rapidly increasedby induction. Opposite parts of the plates and opposite inductors andcarriers become oppositely electrified, condensation takes place in the jars,and sparks pass between the sliding electrodes, which may be increasedto seven inches or more in length. Electricity is generated at once, andthe electric charge constantly sustained by the friction of the carriers STATIC ELECTRICITY AND MAGNETISM. A-107 and brushes ; heuce the machine remains in practical working-order underthe most unfavorable atmospheric conditions. The switch, as seen in the cut, is placed between the Leyden jars,and in connection with their outer coatings, so that the induced currentbetween them is controlled by the operator. As this current flows atthe same instant with the discharge between the sliding electrodes. Fig. 7.—ATKiNSO]srs Toepler Electric Machine. connected with the inner coatings, it is onl}^ necessar^^ to separate themto obtain the interrupted induced current similar to the faradic. In con-nection with the switch are seen cable cords and electrodes, which maybe held by insulating handles and applied to any part of the the switch changes the current to the cords and electrodes, andon separating the sliding electrodes the faradic effect is at once produced,which may be varied from the slightest tremor to the most violent mus- A-108 McCLURE. cular twitchings. A separation of one-sixteenth of an inch produces amild, pleasant sensation; one-eighth to one-fourth of an inch becomespainful; while a separation of one-half to three-fourths of an inch canhardly be borne by the strongest nerves. When the switch is closed andthe sliding electrodes drawn out beyond sparking distance, a persons
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectuterus, bookyear1894
