Brooklyn medical journal. . Fig. 6. The conducting wires in the handles of most cautery electrodesare made too light, and are liable to become heated. The contactpoints are especially apt to suffer, and for this reason it is wellto close the contacts of the electrode handles permanently, and tomake and break circuit by a heavy floor push-button such as isshown in Fig. 6. THE APPLICATION OF THE ELECTRIC LIGHT CURRENT. 447 The simple plan above described will be found far more con-venient and satisfactory for cautery currents than the cumbersome © H hi I Fig. 7. and costly motor-dynamo-transform


Brooklyn medical journal. . Fig. 6. The conducting wires in the handles of most cautery electrodesare made too light, and are liable to become heated. The contactpoints are especially apt to suffer, and for this reason it is wellto close the contacts of the electrode handles permanently, and tomake and break circuit by a heavy floor push-button such as isshown in Fig. 6. THE APPLICATION OF THE ELECTRIC LIGHT CURRENT. 447 The simple plan above described will be found far more con-venient and satisfactory for cautery currents than the cumbersome © H hi I Fig. 7. and costly motor-dynamo-transformer. The latter apparatus iswholly unnecessary for the purpose. For a portable cautery plant the storage battery has practicallysupplanted all others. A storage battery, however, to be kept in good. condition must be used daily, must be recharged as often as used,and its charge must never be more than one-third exhausted. It isadvisable, therefore, to make the portable storage battery do duty also 448 CHARLES JEWETT, , for office purposes. Most of the annoyance which attaches to theuse of storage batteries that require to be sent outsat short intervalsto be recharged may be obviated when the charging current can behad on tap in the office. If the battery is kept well charged, andthe charging current allowed to run through it daily, very littleadditional attention will be needed to keep it at all times in perfectworking order. For charging, the positive terminal of the chargingwire must be connected with the positive pole of the battery, andthe negative with the negative pole. Moreover, the volume of the


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Keywords: ., bookcentury1800, bookdec, booksubjectmedicine, booksubjectsurgery