. Archives of physical medicine and rehabilitation . recentlyplaced on the market by the AcmeX-ray Co. of Chicago, Illinois. Ex-cluding the body of the switch, nowood is used on any point of the sys-tem, all parts being made of metal andinsulating materials. This makes theentire system very rigid and compact. air is made considerably shorter, sothat if the switch is operated on ahigher potential than that for which itis designed the sparkover will takeplace through the air instead of break-ing down the switch. The switch is of the toggle varietyand good contact is assured because ofthe large a
. Archives of physical medicine and rehabilitation . recentlyplaced on the market by the AcmeX-ray Co. of Chicago, Illinois. Ex-cluding the body of the switch, nowood is used on any point of the sys-tem, all parts being made of metal andinsulating materials. This makes theentire system very rigid and compact. air is made considerably shorter, sothat if the switch is operated on ahigher potential than that for which itis designed the sparkover will takeplace through the air instead of break-ing down the switch. The switch is of the toggle varietyand good contact is assured because ofthe large amount of contact surface andthe heavy pressure at the point of con- age path is also assured and breakdownof the insulation, due to the use of toohigh voltage, is prevented as the dis-tance from tube to tube is shorterthrough the air than along the supports for the switch and in-sulators are designed so that they canbe adjusted to allow for irregularities inthe ceiling. In this way, perfect align-ment of conductors, which is so neces-. The high tension switch is capable ofoperating at 100 kv. (effective value).The body of the switch is made ofwood finished in dull black current carrying parts are so dis-posed on this frame that at no pointis the path from negative to positivethrough any one piece of wood. Inaddition to this, the path through the tact made possible by this of the mechanical structureemployed, the switch combines a verypositive action with remarkable ease ofmovement. Horizontal supports are entirelyeliminated, thus preventing the accumu-lation of dust and the resultant partialconduction through it. A longer leak- sary to the good appearance of the sys-tem, can be obtained. Every possible contingency met within the installation of high tension sys-tems has been provided for. The sys-tem is complete in every detail and acombination will be found to meetevery requirement. 293 NEW EQUIPMENT Wappler Scale for Measuring Wave Le
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Keywords: ., bookauthoramerican, bookcentury1900, bookdecade1920, bookyear1920
