Telegraph pole

“ This confession of weakness, this serious drawback of the nineteenth century, which added to the terrors of those “who go down into the great deep,” was fortunately not shared by the advanced sciences and arts of the twentieth century. Wireless telegraphy contributed almost as much to the comfort of ocean and ærial navigation as electricity. Telegraph poles that rendered hideous some of our most beautiful avenues and the antiquated ocean cables were entirely relegated into oblivion. ”

“ As the waves shoot out and reach the distant station, the filings in the tube cohere and the current passing through them draws up the armature of the relay magnet. This closes the circuit of the recording instrument. It is broken constantly [156] by the tapper and instantly re-established by receiving waves.
The towers employed in 1920 for the transmission of wireless messages were very high. The manifest advantages of the system were apparent and long before 1930 wireless telegraphy came into general use. The new system proved the death-knell of telegraph poles, as well as ocean cables. ”

“ Our own English system of war telegraphy, organised at Chatham, has been improved from time to time. Light iron telegraph poles are provided, to support insulated wires. There is a travelling office on wheels for the operators; while the materials are carried in specially constructed wagons. So strong is the wire that wheels may go over it; and therefore the line is laid above ground or on the ground according to circumstances. Spikes of peculiar form enable the wires to be hung on trees or walls to meet the contingencies of towns and villages. ”

“ Since that time great improvements have been made until now it is difficult to recognize in the delicate mechanisms of the relay, key, sounder, duplex, quad, and multiplex, the principle first promulgated in the old Morse register. Its influence was at once felt in all walks of life; it was an art to be an expert telegrapher. Keeping pace with the strides of advancing civilization, the telegraph has spread its slender wires, until now almost the entire world is connected by its magnetism. ”

“ Wherever a telephone circuit has been made upon telegraph poles having other wires upon them, the inductive actions of the currents upon the other wires has been found to seriously interfere with the action of the telephones, inasmuch as the latter reproduce every other message. One skilled in reading by sound in the ordinary way can read through the telephone what message is travelling in a neighboring wire. ”

“ They are not the only test when it comes to keeping the line open. Sometimes a crippled telegraph service may be quite as effective. Out on the Pennsylvania lines west of Pittsburgh a couple of years ago a severe wind and sleet storm levelled more than 40 miles of telegraph poles, in most cases dropping them across main-line tracks in the dark. ”

“ Mere bulk, unorganized, becomes its own destroyer. It dies of clogging and congestion. But when Stephenson's Rocket ran twenty-nine miles an hour, and Morse's telegraph clicked its signals from Washington to Baltimore, and Bell's telephone flashed the vibrations of speech between Boston and Salem, a new era began. In came the era of speed and the finely organized nations. In came cities of unprecedented bulk, but held together so closely by a web-work of steel rails and copper wires that they have become more alert and cooperative than any tiny hamlet of mud huts on the banks of the Congo. ”

“ It is the story of great men—Morse, Thomson, Bell, Marconi, and others—and how, with the aid of men like Field, Vail, Catty, Pupin, the scientist, and others in both the technical and commercial fields, they succeeded in flashing both messages and speech around the world, with wires and without wires. It is the story of how the thought of the world has been linked together by those modern wonders of science and of industry—the telegraph, the submarine cable, the telephone, the wireless telegraph, and, most recently, the wireless telephone. ”

“ India, which is second on the Asiatic list, has no more than nine thousand telephones—one to every thirty-three thousand of her population! Not quite so many, in fact, as there are in five of the skyscrapers of New York. The Dutch East Indies and China have only seven thousand apiece, but in China there has recently come a forward movement. A fund of twenty million dollars is to be spent in constructing a national system of telephone and telegraph. Peking is now pointing with wonder and delight to a new exchange, spick and span, with a couple of ten-thousand-wire switchboards. ”

“ Frequently the disturbances were so loud in the telephone as to destroy conversation. When a second telephone line was strung alongside the first, even though perfectly insulated, another surprise awaited the telephone pioneers. Conversation carried on over one of these wires could plainly be heard on the other. Another strange thing was discovered. Iron wire was not so good a conductor for the telephone current as it was for the telegraph current. ”

“ Again, even without occupying a station, it is possible to read the messages which are passing along a telegraph-line, and thus perhaps discover important secrets. All that is required for this purpose is a small portable receiving instrument, and a few yards of copper wire to connect it with the line. A single individual, thus equipped, can "tap" a telegraph-line, in the daytime, by receiving the message in the ordinary way ”

“ In the early days of the telephone it was not supposed that a vocal message could be transmitted to a very great distance. However, as time went on and experiments were multiplied the distance to which one could converse with another through a wire kept on increasing.
In these days, as every one knows, it is a daily occurrence that business men converse with each other, telephonically, for a distance of 1000 miles or more; in fact, it is possible to transmit the voice through a single circuit about as great a distance as it is possible to practically telegraph. ”

“ Wireless telegraphy is part of the established order of things. The wireless telephone is practical for limited distance, but is not a commercial rival of the telegraph. Great distances are claimed, but they are matters for proof and speculation.
There is no immediate possibility that wireless telephony will take the place of local exchanges. If the time ever does come that it in any way tends to supplant the line telephone for some uses, it is more than probable that each subscriber must have his own generating station and call up direct. ”

“ This is a question which does not admit of an answer, for to no one man alone do we owe wireless telegraphy, though Hertz was the first to discover the waves which make it possible. However, it is to the men whose indefatigable labors and genius made the electric telegraph a reality, that we also owe wireless telegraphy as we have it at present, for the latter may be considered in many respects the resultant of the former, though both are different in medium.
Radio or wireless telegraphy in principle is as old as mankind. ”

“ The veil of darkness only serves to keep these little powers at work. Men have sometimes a foreshadowing of what will come to pass without distinctly seeing it. In mechanical affairs, the notion of a telegraph is very old, and probably immemorial. Centuries ago the poet and philosopher entertained the idea of two persons far apart being able to correspond through the sympathetic property of the lodestone. The string or lovers' telephone was known to the Chinese, and even the electric telephone was thought about some years before it was invented. Bourseul, Reis, and others preceded Graham Bell. ”

“ Many minds have, since the birth of the telegraph, occupied themselves with the problem of devising improved means of telegraphic transmission. The results have varied according to the point of view from which the subject was approached, but all, directly or indirectly, sought the same goal (the obvious one, since speed is the essence of telegraphy) , to find the best means of sending more messages over the wire in a given time. ”

“ Wireless telephony, like wireless telegraphy, but to an even greater extent, is peculiarly suited for the conveyance of marine intelligence. Wireless telephony occupies a unique position in this regard-no operator is required. The additional expense of an operator is an objection to the wireless telegraph in many cases, and forbids its installation. Anybody can operate the wireless telephone. It is also much quicker-words can be spoken more rapidly than they can be put into Morse signals and translated. ”

“ If the electric telegraph should succeed it will be one of the most striking novelties of this inventive age — and I should have been most happy to have been present at the experiment, to which you were so good as to invite me, if I had been nearer London. ”

“ My purpose was to first tap the wires and attach my pocket instrument and have some fun out of it. Another reason for disappointment was, that I had discovered—if not patented—a safer and surer method of destroying telegraph lines. Of course a mile of wire is more easily transported then a mile of rails. Two men can carry a half-mile coil of wire. A telegraph line can be rebuilt and used with the wire lying on trees, or even fences, in dry weather. ”

“ Indeed, it may be truly said that the harnessing of this force of nature (electricity) to the service of man for human intercourse has effected a change in political, commercial, and social relations, even more complete than that wrought by steam locomotion. Like its fellow emblems, the telegraph was the outcome of many years of persevering effort on the part of numerous scientific investigators and inventors; like them also, it was perfected for practical use on both sides of the Atlantic by men of our own race{14} and speech, such as Cooke, Wheatstone, and Morse. ”

“ On an ordinary cable of about a thousand miles long, the working speed is about twenty words per minute. On the French Atlantic it is usually about thirteen, although as many as seventeen have sometimes been sent.
The 'duplex' system, or method of telegraphing in opposite directions at once through the same wire, has of late years been applied, in connection with the recorder, to all the long cables of that most enterprising of telegraph companies—the Eastern—so that both stations may 'speak' to each other simultaneously. ”

“ Now, there is no person on the face of the globe who can measure the price at which, if a reasonable man, he would be willing to strike from the world the use of the magnetic telegraph as a means of communication between different portions of the same country. ”

“ Early in 1919 the Post-office Department used the wireless telegraph in connection with air mail service. A central station is located in the Post-office Department Building at Washington, and other stations are located in cities near the transcontinental air mail route from New York City to San Francisco. Experiments are being made with the wireless as a means of directing airplanes in flight, especially during foggy and stormy weather, and it is expected planes will ultimately be equipped with either wireless telegraph or telephone outfits. ”

“ It was after the turn of the century that telegraph engineers began in earnest to think about a system of telegraphy that would permit direct intercommunication by the printed word, and direct circuit connection to any outlying subscriber as in the telephone communication system. ”

“ In this apparatus a vibrating steel tongue interrupted the current, which at the other end of the line passed through the electro-magnet and vibrated a band or tongue of iron near its poles. Gray's 'harmonic telegraph,' with the vibrating tongues or reeds, was afterwards introduced on the lines of the Western Union Telegraph Company in America. As more than one set of vibrations—that is to say, more than one note—can be sent over the same wire simultaneously, it is utilised as a 'multiplex' or many-ply telegraph, conveying several messages through the same wire at once ”

“ Telegraphing Without Wires.—Wireless telegraphy is an outgrowth of the ordinary telegraph system. When Maxwell, and, later on, Hertz, discovered that electricity, magnetism, and light were transmitted through the ether, and that they differed only in their wave lengths, they laid the foundations for wireless telegraphy. Ether is a substance which is millions and millions of times lighter than air, and it pervades all space. ”

“ Mr. Cooke and Professor Wheatstone well deserve thanks for having given the example in applying the electric telegraph to practical use for society at large. I allow myself here to state my feelings of regret, that Baron Schilling did not live to get informed of this application; he died just before it began to take place.
In America, the first telegraph line, from Washington to Baltimore, was completed in 1844. ”

“ A single man could, without being seen, cut the telegraph wires leading to Paris, and in twenty-four hours cut in ten different places the wires of the same line, without being arrested. The visual telegraph, on the contrary, has its towers, its high walls, its gates well-guarded from inside by strong armed men. ”

“ Already the cable companies have been affected considerably, and there is little doubt that they will feel the competition much more seriously before long. The general public, always conservative in such matters, have not yet grasped the fact that telegrams can be handed in at any telegraph office in the British Isles, and at most telegraph offices in the United States and Canada, for wireless transmission across the Atlantic, via the Marconi stations at Clifden and Glace Bay. ”