Electrical news and engineering . The case is brass. The regulating mechanism of theseclocks is at the central power station, where a master clockcontrolling the frequency of the current regulates all of theWarren clocks on the system. New-Seal Battery Cell .\ battery, the jars of which are made of heavy castglass with a reinforced top, has been placed on the marketby the Universal Battery Company, 3446 South La SalleStreet, Chicago, 111. The metal cover fits on a seat insideof the jar with a thin layer of sealing compound betweenit and the sides of the jar. A large screwed vent openingis prov
Electrical news and engineering . The case is brass. The regulating mechanism of theseclocks is at the central power station, where a master clockcontrolling the frequency of the current regulates all of theWarren clocks on the system. New-Seal Battery Cell .\ battery, the jars of which are made of heavy castglass with a reinforced top, has been placed on the marketby the Universal Battery Company, 3446 South La SalleStreet, Chicago, 111. The metal cover fits on a seat insideof the jar with a thin layer of sealing compound betweenit and the sides of the jar. A large screwed vent openingis provided in the cover, elevated to prevent spilled elec-. trolyte from running back into the cell. Cover and elementare bound together by a hard ruliber nut which fits on thethreaded terminal posts. .\ tight seal is formed by a softrubber gasket used below the cover. The manufacturerstates that the plates are hand pasted and are uniform inweight and finish. Wood separators are used. A lug iscast on each end of the plate through which a hard rubberrod passes, serving as a separator support. A New Traffic Light This traffic light is constructed of indestructible inateri-al and embodies an illuminating device, built in such a waythat it cannot be damaged or broken. It consists of a dome-sli:iiu(l reinforced concrete body containing a chamber in which are arranged the necessary electric light the centre of the body there are a number of bores(c) extending radially, the outer ends of which are closedwith colored lenses (a) placed diagonally therein. A relative-ly larger lens (b) is also placed within a vertical hole (d). KALEVIMA
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Keywords: ., bo, bookcentury1800, bookdecade1890, bookidelectricalnewsen31donm
