. Electrical world. raphic communication is concerned. The negotiationsare at present temporarily suspended, partly owing to the inabilityto obtain from the English post office the facilities for an inlandservice which are necessary, and partly to other difficulties. Fifty-four shore stations are now installed commanding the prin-cipal shipping routes, these stations being available exclusively forcommunication with ships equipped with the Marconi system. Amongthem are stations worked by the British Admiralty, the Italian Ad-miralty and Lloyds. As the stations worked by the governmentsand Lloy
. Electrical world. raphic communication is concerned. The negotiationsare at present temporarily suspended, partly owing to the inabilityto obtain from the English post office the facilities for an inlandservice which are necessary, and partly to other difficulties. Fifty-four shore stations are now installed commanding the prin-cipal shipping routes, these stations being available exclusively forcommunication with ships equipped with the Marconi system. Amongthem are stations worked by the British Admiralty, the Italian Ad-miralty and Lloyds. As the stations worked by the governmentsand Lloyds are increased, an extension of the arrangements forworking exclusively with ships equipped with the Marconi systemwill ensue. Launch Motors and Controllers. One of the features of the St. Louis Exposition will be the oper-ation of a number of electric launches upon the waterways some-what in the same manner as at Chicago and the Buffalo Pan-Ameri-can. The Hertner Electric Company, of Cleveland, Ohio, has recently. battery being furnished for each equipment. As in the case of mostof the recent gasoline boats, the motors are of the automobile typeand are those built ordinarily by the Hertner Company as theirstandard 2;/2-hp for automobile purposes. They are illustrated inFig. I and are multi-polar with forged steel field yoke and laminatedpoles. Ball bearings are provided so constructed as to take care ofend thrust as well as radial pressure. Special heads are used sothat the motors are water-tight up to the level of the bearings; theupper half of the front head being left open so as to expose the com-mutator and brushes, over which a removable cover is motors are compound wound and designed for high controllers shown in Fig. 2 are arranged for three forward and filled an order for 30 special motors and controllers for this purpose,to be used on the launches. The boats in question are under con-struction by the Truscott Boat Manufacturing Company, o
Size: 1631px × 1532px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
