Ted and the Telephone Part 13

"It certainly is interesting," Mr. Hazen replied. "And if it interests us in this far-away time, think what it must have meant to the pioneers to witness the marvels half a century brought forth and look back over the trail they had blazed. For it was a golden era of discovery, that period when the new-born power of electricity made its appearance; and because Williams's shop was known to be a nursery for ideas, into it flocked every variety of dreamer. There were those who dreamed epoch-making dreams and eventually made them come true; and there were those who merely saw visions too impractical ever to become realities.

To work amid this mecca of minds must have been not only an education in science but in human nature as well. Every sort of crank who had gathered a wild notion out of the blue meandered into Williams's shop in the hope that somebody could be found there who would provide either the money or the labor to further his particular scheme.

"Now in this shop," went on Mr. Hazen, "there was, as I told you, a young neophyte by the name of Thomas Watson. Tom had not found his niche in life. He had tried being a clerk, a bookkeeper, and a carpenter and none of these several occupations had seemed to fit him.

Then one fortunate day he happened in at Williams's shop and immediately he knew this was the place where he belonged. He was a boy of mechanical tastes who had a real genius for tools and machinery. He was given a chance to turn castings by hand at five dollars a week and he took the job eagerly."

"Think how a boy would howl at working for that now," Laurie exclaimed.

"No doubt there were boys who would have howled then," answered Mr.

Hazen, "although in those days young fellows expected to work hard and receive little pay until they had learned their trade. Perhaps the youthful Mr. Watson had the common sense to cherish this creed; at any rate, there was not a lazy bone in his body, and as there were no such things to be had as automatic screw machines, he went vigorously to work making the castings by hand, trying as he did so not to blind his eyes with the flying splinters of metal."

"Then what happened?" demanded Laurie.

"Well, Watson stuck at his job and in the meantime gleaned right and left such sc.r.a.ps of practical knowledge as a boy would pick up in such a place. By the end of his second year he had had his finger in many pies and had worked on about every sort of electrical contrivance then known: call bells, annunciators, galvanometers; telegraph keys, sounders, relays, registers, and printing telegraph instruments. Think what a rich experience his two years of apprentices.h.i.+p had given him!"

"You bet!" e.j.a.c.u.l.a.t.ed Ted appreciatively.

"Now as Tom Watson was not only clever but was willing to take infinite pains with whatever he set his hand to, never stinting nor measuring his time or strength, he became a great favorite with those who came to the shop to have different kinds of experimental apparatus made. Many of the ideas brought to him to be worked out came from visionaries who had succeeded in capturing the financial backing of an unwary believer and convinced themselves and him that here was an idea that was to stir the universe. But too many of these schemes, alas, proved worthless and as their common fate was the rubbish heap, it is strange that the indefatigable Thomas Watson did not have his faith in pioneer work entirely destroyed. But youth is buoyed up by perpetual hope; and paradoxical as it may seem, his enthusiasm never lagged. Each time he felt, with the inventor, that they might be standing on the brink of gigantic unfoldings and he toiled with energy to bring something practical out of the chaos. And when at length it became evident beyond all question that the idea was never to unfold into anything practical, he would, with the same zealous spirit, attack another seer's problem."

"Didn't he ever meet any successful inventors?" questioned Ted.

"Yes, indeed," the tutor answered. "Scattered among the cranks and castle builders were several brilliant, solid-headed men. There was Moses G. Farmer, for example, one of the foremost electricians of that time, who had many an excellent and workable idea and who taught young Watson no end of valuable lessons. Then one day into the workshop came Alexander Graham Bell. In his hand he carried a mechanical contrivance Watson had previously made for him and on espying Tom in the distance he made a direct line for the workman's bench. After explaining that the device did not do the thing he was desirous it should, he told Watson that it was the receiver and transmitter of his Harmonic Telegraph."

"And that was the beginning of Mr. Watson's work with Mr. Bell?" asked Ted breathlessly.

"Yes, that was the real beginning."

"Think of working with a man like that!" the boy cried with sparkling eyes. "It must have been tremendously interesting."

"It was interesting," responded Mr. Hazen, "but nevertheless much of the time it must have been inexpressibly tedious work. A young man less patient and persistent than Watson would probably have tired of the task. Just why he did not lose his courage through the six years of struggle that followed I do not understand. For how was he to know but that this idea would eventually prove as hopeless and unprofitable as had so many others to which he had devoted his energy? Beyond Mr.

Bell's own magnetic personality there was only slender foundation for his faith for in spite of the efforts of both men the harmonic telegraph failed to take form. Instead, like a tantalizing sprite, it danced before them, always beckoning, never materializing. In theory it was perfectly consistent but in practise it could not be coaxed into behaving as it logically should. Had it but been possible for those working on it to realize that beyond their temporary failure lay a success glorious past all belief, think what the knowledge would have meant. But to always be following the gleam and never overtaking it, ah, that might well have discouraged prophets of stouter heart!"

"Were these transmitters and receivers made from electromagnets and strips of flat steel, as you told us the other day?" asked Ted.

"Yes, their essential parts comprised just those elements--an electromagnet and a sc.r.a.p of flattened clock spring which, as I have explained, was clamped by one end to the pole of the magnet and left free at the other to vibrate over the opposite pole. In addition the transmitter had make-and-break points such as an ordinary telephone bell has, and when these came in contact with the current, the springs inside continually gave out a sort of wail keyed to correspond with the pitch of the spring. As Mr. Bell had six of these instruments tuned to as many different pitches--and six receivers to answer them--you may picture to yourself the hideousness of the sounds amid which the experimenters labored."

"I suppose when each transmitter sent out its particular whine its own similarly tuned receiver spring would wriggle in response," Laurie said.

"Exactly so."

"There must have been lovely music when all six of them began to sing!"

laughed Ted.

"Mr. Watson wrote once that it was as if all the miseries of the world were concentrated in that workroom, and I can imagine it being true,"

answered the tutor. "Well, young Watson certainly did all he could to make the harmonic telegraph a reality. He made the receivers and transmitters exactly as Mr. Bell requested; but on testing them out, great was the surprise of the inventor to find that his idea, so feasible in theory, refused to work. Nevertheless, his faith was not shaken. He insisted on trying to discover the flaw in his logic and correct it, and as Watson had now completed some work that he had been doing for Moses Farmer, the two began a series of experiments that lasted all winter."

"Jove!" e.j.a.c.u.l.a.t.ed Laurie.

"Marvels of science are not born in a moment," answered Mr. Hazen. "Yet I do not wonder that you gasp, for think of what it must have meant to toil for weeks and months at those wailing instruments! It is a miracle the men did not go mad. They were not always able to work together for Mr. Bell had his living to earn and therefore was compelled to devote a good measure of his time to his college cla.s.ses and his deaf pupils. In consequence, he did a portion of his experimental work at Salem while Watson carried on his at the shop, fitting it in with other odd jobs that came his way. Frequently Mr. Bell remained in Boston in the evening and the two worked at the Williams's shop until late into the night."

"Wasn't it lucky there were no labor unions in those days?" put in Ted mischievously.

"Indeed it was!" responded Mr. Hazen. "The shop would then have been barred and bolted at five o'clock, I suppose, and Alexander Graham Bell might have had a million bright ideas for all the good they would have done him. But at that golden period of our history, if an ambitious fellow like Watson wished to put in extra hours of work, the more slothful ones had no authority to stand over him with a club and say he shouldn't. Therefore the young apprentice toiled on with Mr. Bell, unmolested; and Charles Williams, the proprietor of the shop, was perfectly willing he should. One evening, when the two were alone, Mr.

Bell remarked, 'If I could make a current of electricity vary in intensity precisely as the air varies in density during the production of sound, I should be able to transmit speech telegraphically.' This was his first allusion to the telephone but that the idea of such an instrument had been for some time in his mind was evident by the fact that he sketched in for Watson the kind of apparatus he thought necessary for such a device and they speculated concerning its construction. The project never went any farther, however, because Mr.

Thomas Saunders and Mr. Gardiner Hubbard, who were financing Mr. Bell's experiments, felt the chances of this contrivance working satisfactorily were too uncertain. Already much time and money had been spent on the harmonic telegraph and they argued this scheme should be completed before a new venture was tried."

"I suppose that point of view was quite justifiable," mused Ted. "But wasn't it a pity?"

"Yes, it was," agreed Mr. Hazen. "Yet here again we realize how man moves inch by inch, never knowing what is just around the turn of the road. He can only go it blindly and do the best he knows at the time.

Naturally neither Mr. Hubbard nor Mr. Saunders wanted to swamp any more money until they had received results for what they had spent already; and those results, alas, were not forthcoming. Over and over again poor Watson blamed himself lest some imperceptible defect in his part of the work was responsible for Mr. Bell's lack of success. The spring of 1875 came and still no light glimmered on the horizon. The harmonic telegraph seemed as far away from completion as ever. Patiently the men plodded on. Then on a June day, a day that began even less auspiciously than had other days, the heavens suddenly opened and Alexander Graham Bell had his vision!"

"What was it?"

"Tell us about it!" cried both boys in a breath.

"It was a warm, close afternoon in the loft over the Williams's shop and the transmitters and receivers were whining there more dolefully than usual. Several of them, sensitive to the weather, were out of tune, and as Mr. Bell had trained his ear to sounds until it was abnormally acute, he was tuning the springs of the receivers to the pitch of the transmitters, a service he always preferred to perform himself. To do this he placed the receiver against his ear and called to Watson, who was in the adjoining room, to start the current through the electromagnet of the corresponding transmitter. When this was done, Mr. Bell was able to turn a screw and adjust the instrument to the pitch desired. Watson admits in a book he has himself written that he was out of spirits that day and feeling irritable and impatient. The whiners had got on his nerves, I fancy. One of the springs that he was trying to start appeared to stick and in order to force it to vibrate he gave it a quick snap with his finger. Still it would not go and he snapped it sharply several times. Immediately there was a cry from Mr.

Bell who rushed into the hall, exclaiming, 'What did you do then? Don't change anything. Let me see.'

"Watson was alarmed. Had he knocked out the entire circuit or what had he done in his fit of temper? Well, there was no escape from confession now; no pretending he had not vented his nervousness on the mechanism before him. With honesty he told the truth and even ill.u.s.trated his hasty action. The thing was simple enough. In some way the make-and-break points of the transmitter spring had become welded together so that even when Watson snapped the instrument the circuit had remained unbroken, while by means of the piece of magnetized steel vibrating over the pole of the magnet an electric current was generated, the type of current that did exactly what Mr. Bell had dreamed of a current doing--a current of electricity that varied in intensity precisely as the air within the radius of that particular spring was varying in density. And not only did that undulatory current pa.s.s through the wire to the receiver Mr. Bell was holding, but as good luck would have it the mechanism was such that it transformed that current back into a faint but unmistakable echo of the sound issuing from the vibrating spring that generated it. But a fact more fortunate than all this was that the one man to whom the incident carried significance had the instrument at his ear at that particular moment.

That was pure chance--a Heaven-sent, miraculous coincidence! But that Mr. Bell recognized the value and importance of that whispered echo that reached him over the wire and knew, when he heard it, that it was the embodiment of the idea that had been haunting him--that was not chance; it was genius!"

The room had been tensely still and now both boys drew a sigh of relief.

"How strange!" murmured Ted in an awed tone.

"Yes, it was like magic, was it not?" replied the tutor. "For the speaking telephone was born at that moment. Whatever practical work was necessary to make the invention perfect (and there were many, many details to be solved) was done afterward. But on June 2, 1875, the telephone as Bell had dreamed it came into the world. That single demonstration on that hot morning in Williams's shop proved myriad facts to the inventor. One was that if a mechanism could transmit the many complex vibrations of one sound it could do the same for any sound, even human speech. He saw now that the intricate paraphernalia he had supposed necessary to achieve his long-imagined result was not to be needed, for did not the simple contrivance in his hand do the trick? The two men in the stuffy little loft could scarcely contain their delight. For hours they went on repeating the experiment in order to make sure they were really awake. They verified their discovery beyond all shadow of doubt. One spring and then another was tried and always the same great law acted with invariable precision. Heat, fatigue, even the dingy garret itself was forgotten in the flight of those busy, exultant hours. Before they separated that night, Alexander Graham Bell had given to Thomas Watson directions for making the first electric speaking telephone in the world!"

CHAPTER X

WHAT CAME AFTERWARD

"Was that first telephone like ours?" inquired Ted later as, their lunch finished, they sat idly looking out at the river.

"Not wholly. Time has improved the first crude instrument," Mr. Hazen replied. "The initial principle of the telephone, however, has never varied from Mr. Bell's primary idea. Before young Watson tumbled into bed on that epoch-making night, he had finished the instrument Bell had asked him to have ready, every part of it being made by the eager a.s.sistant who probably only faintly realized the mammoth importance of his task. Yet whether he realized it or not, he had caught a sufficient degree of the inventor's excitement to urge him forward. Over one of the receivers, as Mr. Bell directed, he mounted a small drumhead of goldbeater's skin, joined the center of it to the free end of the receiver spring, and arranged a mouthpiece to talk into. The plan was to force the steel spring to answer the vibrations of the voice and at the same time generate a current of electricity that should vary in intensity just as the air varies in density during the utterance of speech sounds. Not only did Watson make this instrument as specified, but in his interest he went even farther, and as the rooms in the loft seemed too near together, the tireless young man ran a special wire from the attic down the two flights of stairs to the ground floor of the shop and ended it near his workbench at the rear of the building, thus constructing the first telephone line in history.

"Then the next day Mr. Bell came to test out his invention and, as you can imagine, there was great excitement."

"I hope it worked," put in Laurie.

"It worked all right although at this early stage of the game it was hardly to be expected that the instrument produced was perfect.

Nevertheless, the demonstration proved that the principle behind it was sound and that was all Mr. Bell really wanted to make sure of. Watson, as it chanced, got far more out of this initial performance than did Mr.

Bell himself for because of the inventor's practical work in phonics the vibrations of his voice carried more successfully than did those of the a.s.sistant. Yet the youthful Watson was not without his compensations.

Nature had blessed him with unusually acute hearing and as a result he could catch Bell's tones perfectly as they came over the wire and could almost distinguish his words; but shout as he would, poor Mr. Bell could not hear _him_. This dilemma nevertheless discouraged neither of them for Watson had plenty of energy and was quite willing to leap up the two flights of stairs and repeat what he had heard; and this report greatly rea.s.sured Mr. Bell, who outlined a list of other improvements for another telephone that should be ready on the following day."

"I suppose they kept remodelling the telephones all the time after that, didn't they?" inquired Ted.