| Show WIRELESS telegraphy ON TRAINS in the last issue of consular reports Is a statement of experiments in wireless telegraphy on trains con sul general guenther Guen lher of germany says two years ago the russian railroad authorities made experiments with wireless telegraphy on moving trains upon the bossen zossen berlan military railroad each station was supplied with 0 sending and receiving apparatus as were also the trains for the transmission of signs the telegraph wires along the railroad were used in order to save electric energy these ex perl ments which were continued up to a few weeks ago have clearly demonstrated that the apparatus for wireless telegraphy upon a moving train can communicate at all times with any telegraphic station on the line and report instantaneously irregularities accidents etc private telegrams tle grams can also b sent calling for help notifying anxious relatives of passengers waiting at stations etc on the other liand telegrams from each station can reach the moving train and warn the locomotive engineer against collisions impediments on the track and other dangers portable wireless telegraph stations re now manufactured of such light hat carts or wagons are no iong ri needed tor their transportation ahe parts being carried by the men while with stations moved by wagons the air conductors are attached to balloons or kites with portable stations they are attached to steel masts these masts three in number can be pushed together like a telescope and are then about 1212 2 feet long but can easily be pulled out to a length of 33 feet owing to their light weight which for one mast inclusive of braces and wire rope is only 44 pounds they can be put up in short order they are supplied at the foot with cast iron ground plates and twice steadied in three directions by means of wire ropes fastened 10 ground anchors between the three masts zinc coated copper ropes consisting of eight twisted wires are stretched as air conductors the ropes are fastened to the masts by brass hooks with flight glass insulators the electric energy required Is furnished by a so called tread dynamo mounted upon sort of stationary bicycle with a light seat for the man who keeps the machine going with his feet the weight of this dynamo is 44 pounds the electric energy can also be supplied by a portable storage battery for the transportation of the complete wireless telegraph station with a tread dynamo ten men are re quiren eleven men where a storage battery is used the net weight of a complete station with tread dynamo is 0 pounds it a estorage battery is used pounds so tar these sta alons on account of the limited height af the masts can only be operated on level lands for 15 to ac miles but they can be easily moved are quickly put up and work with certainty |
