. Principles of electro-medicine, electro-surgery and radiology : a practical treatise for students and practioners, with chapters on mechanical vibration and blood pressure technique . Fig. 59—Valve Tube. Electro-Medicine, Electro-Surgery and Radiology HI The high tension rectifier consists of a revolving disc mounted on theshaft of the rotary converter (if the machine is to be operated on thedirect current), or a synchronous motor (if for alternating current).When this disc revolves on the motor shaft, the two metal contacts onthe disc (which are connected to the high tension alternating cur
. Principles of electro-medicine, electro-surgery and radiology : a practical treatise for students and practioners, with chapters on mechanical vibration and blood pressure technique . Fig. 59—Valve Tube. Electro-Medicine, Electro-Surgery and Radiology HI The high tension rectifier consists of a revolving disc mounted on theshaft of the rotary converter (if the machine is to be operated on thedirect current), or a synchronous motor (if for alternating current).When this disc revolves on the motor shaft, the two metal contacts onthe disc (which are connected to the high tension alternating current)alternately pass the stationary electrodes fixed near the revolving stationary electrodes collect the converted current, which is fedto the X-ray tube. (Fig. 75). Fig. 60—X-ray Protective Screen. The Protection of the Patient and Operator An overdose of the X-rays being injurious, whenever using these raysit is absolutely necessary to protect the patient and the operator againstindiscriminate exposure. There are two ways of protecting the patient:one, to surround the tube with an opaque covering, limiting the exit ofthe rays to a small opening, which can be regulated as required; theother is to cover, by some opaque material all parts of the patient andoperator, which arc within the influence of the rays and which requireprotection. The X-rays being unable to traverse lead or any substancecontaining lead, the first method is carried out by placing the tube in ahowl made of glass which contains a large quantity of lead (lead glass), 112 Anthony Matijaca mounted on a metal stand (Fig. 57). The target of the tube is directedtowards the opening of the bowl so as to allow the rays to come second method consists in employing lead sheets wit
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectelectri, bookyear1917
