The electro-therapeutic guide, or, A thousand questions asked and answered . THE GUIDE 65 market which embody this principle, among which will be found a veryunique one, in that the small lamp is absolutely guarded against an excessof current; which may be accidentally encountered when used with a wallplate or other controller. What is a motor-generator^ and its use? Another method of utilizing the alternating current in electro-therapy,although in a rather indirect manner, is by transforming it to a direct cur-rent which may be employed in producing galvanic effects; a mo
The electro-therapeutic guide, or, A thousand questions asked and answered . THE GUIDE 65 market which embody this principle, among which will be found a veryunique one, in that the small lamp is absolutely guarded against an excessof current; which may be accidentally encountered when used with a wallplate or other controller. What is a motor-generator^ and its use? Another method of utilizing the alternating current in electro-therapy,although in a rather indirect manner, is by transforming it to a direct cur-rent which may be employed in producing galvanic effects; a motor-dynamooutfit, so styled, is used for this purpose. The process of transforming thecurrent really amounts to developing power by passing the alternating cur-rent through a small alternating current motor; the shaft of this motor iseither geared or connected directly with the shaft of a small direct current. dynamo; the powder thus produced operates the dynamo, which generates adirect current of suitable voltage and amperage to be used in connection witha galvanic wall plate; this current may also be employed to excite the actionof the faradic coil of a physicians switchboard. Strictly speaking, the al-ternating current employed in this method is used as a mechanical agent,rather than as a therapeutic force. 5 66 THE EIvECTRO-THERAPEUTIC GUIDE What is an electric belt, and its ttses? The ordinary so-called electric belt is a fake pure and simple, made tosell, and then to disintegrate. This is for two reasons, one to make roomfor another sale, and the other is to destro}^ the evidence of the first }^ are usually a flexible chain of pieces of zinc and copper, covered withfelt or some other absorbent material, which is soaked in some dilute acid,usuall}^ acetic. This comes in contact with the two metals and creates aslicrht current. The cheap, impure materials used soon cause local
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