Electrotherapy Machine (Magneto-Electric)
Maker and role
S. Maw Son and Thompson, Manufacturer
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This consists of a wooden box with a hinged lid. On the front panel of the box is a brass handle which when turned in the clockwise direction, rotates a large toothed wheel. This wheel, in turn, is connected to a much smaller toothed wheel. One revolution of the large wheel produces several revolutions of the smaller wheel. This smaller wheel is directly attached to a pulley. A string passes over the pulley which then goes on to pass over a smaller pulley connected to a pair of coils. These 2 coils pass rapidly over a powerful horseshoe magnet. When the outer handle is turned, the system starts to turn the coils rapidly thereby generating a current. There is a connecting brass terminal on either end of the box for hooking up a pair of electrodes (missing). On the inner side of the top lid, are a set of directions for use. The box itself does not have a base.
THE IMPROVED / MAGNETO-ELECTRIC MACHINE, / FOR / NERVOUS DISEASES, / MANUFACTURED BY / S. MAW. SON & THOMPSON, 10, 11, & 12, ALDERSGATE STREET, LONDON, E.C. Printed