Electrical news and engineering . K. G. Hagen & Com-pany, Amherst, ; Gorman, Clancey & Grindley, Ed-monton, Alta.; R. C. Thomas & Company, Calgary, Alta. The Reynolds Electric Flasher Manufacturing Com-pany have opened a branch office in the Electric Building,San Francisco, which will be in charge of Mr. Henry This office will serve the Pacific coast, and ad-jacent States. The Niagara, St, Catharines and TorontoRailway Company Instai an Interrupterfor Code Signalling In railway service it is oflen desirable to eliminate theloss of time occasioned by the use of hand generators. On


Electrical news and engineering . K. G. Hagen & Com-pany, Amherst, ; Gorman, Clancey & Grindley, Ed-monton, Alta.; R. C. Thomas & Company, Calgary, Alta. The Reynolds Electric Flasher Manufacturing Com-pany have opened a branch office in the Electric Building,San Francisco, which will be in charge of Mr. Henry This office will serve the Pacific coast, and ad-jacent States. The Niagara, St, Catharines and TorontoRailway Company Instai an Interrupterfor Code Signalling In railway service it is oflen desirable to eliminate theloss of time occasioned by the use of hand generators. Onmagneto lines where a large number of messages are sentdaily this is an important feature and with telephone linesbetween block-towers the quickest possible method of call-ing is demanded. The interrupter illustrated herevvilli is designed especi-•ally for this class of work and was first adapted for usewith tower systems. With small lines in railway yards,line sidings, etc., where several telephones may be connect-. Inteiiupter, cover i-pnioved. cd to the same pair of wires, it has also proved itself of thegreatest benefit. It is not limited, however, to this classof service, but is very efticient in all code ringing work,as the signals due to the sensitive mechanism can be madevery clear and distinct. lis construction is the simplest possilde. It is operat-ed by means of a key or push button which closes the bat-tery circuit containing four to eight dry cells. The num-ber of cells depends upon the number of bells it is desiredto ring. It is recommended that five dry cells be used,which will ring efficiently fourteen 1000-ohm ringers or six-teen 2500-ohm ringers on a line of 500 ohms is about the equivalent of a .iO-mile metallic circuit ofNo. 12 B. & S. copper wire. As the interrupter operatesonly when the battery circuit is closed, it is most econom-ical in current consumption. It is adjusted so that it re-sponds at once when the key is pressed closing the


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