File:Galvanic caustic battery, The Dental record (1881).jpg

Identifier: dentalrecord04euro (find matches)
Title: The Dental record
Year: 1881 (1880s)
Authors: European Orthodontic Society
Subjects: Dentistry
Publisher: London
Contributing Library: Dentistry - University of Toronto
Digitizing Sponsor: University of Toronto

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ng two glass cells, into each of which fourcarbon and three zinc elements are placed ; the elements are attachedto a wood plate, which forms the inner lid or covering to the case andcarries the binding screws. The cells rest upon a moveable support,to which is attached a brass rod with a handle, by means of which thecells may be raised or lowered, and the intensity of the currentncreased or diminished, as desired ; the brass rod is pierced with anumber of holes, so that it may be fixed by means of a pin in anyposition necessary. The exciting solution consists of— Bichromate of potash .. .. .. ,. .. i part. Distilled water .. ,. .. .. .. .. lo ,, Sulphuric acid .. .. ., .. .. .. 2 ,, And one teaspoonful of bisuiphate of mercury is added to each cell to 250 THE DENTAL RECORD. assist in keeping up the amalgamation of the zinc. So charged, it isclaimed that this battery will run for three months with the samesolution. Maw, Son & Thompsons Galvano-Caustic Battery.—Fig. 32. Fig- 32-
Text Appearing After Image:
This is a portable 4-ceIl battery of Groves elements, fitted with twobottles for containing the acids ; on the front of the case is a dial-plate with handle for regulating the power of the current by connectingand bringing into action one or more cells as required. Stohrers Batteries, manufactured by Dr. E. Stohrer, of Dresden,are of two forms; the one is intended for hospital and the other forprivate practice, the principle in both being the same, and theydiffer chiefly in regard to size and portability. These batteries arevery simple in construction, satisfactory in use, and not liable to getout of order. They are composed of from 20 to 30 cells, with carbonand zinc elements and dilute sulphuric acid, with a pinch of bisulphateof mercury in each cell for the excitant. Glass cells are employed inhospital and vulcanite cells in private batteries. Most of the medicalconstant current batteries now in use take their origin from the THE DENTAL RECORD. 251 Stohrer models. An improved form

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