Experience with Inventors

Besides the regular work at Williams’, there was a constant stream of

wild-eyed inventors, with big ideas in their heads and little money in

their pockets, coming to the shop to have their ideas tried out in brass

and iron. Most of them had an “angel” whom they had hypnotized into

paying the bills. My enthusiasm, and perhaps my sympathetic nature, made

me a favorite workman with those men of visions, and in 1873-74 my work

had become largely making experimental apparatus for such men. Few of

their ideas ever amounted to anything, but I liked to do the work, as it

kept me roaming in fresh fields and pastures new all the time. Had it

not been, however, for my youthful enthusiasm—always one of my chief

assets—I fear this experience would have made me so skeptical and

cynical as to the value of electrical inventions that my future

prospects might have been injured.

[Illustration: _Thomas Sanders in 1878, at the Time He Was the Sole

Financial Backer of the Telephone_]

I remember one limber-tongued patriarch who had induced some men to

subscribe $1,000 to build what he claimed to be an entirely new electric

engine. I had made much of it for him. There was nothing new in the

engine, but he intended to generate his electric current in a series of

iron tanks the size of trunks, to be filled with nitric acid with the

usual zinc plates suspended therein. When the engine was finished and

the acid poured into the tanks for the first time, no one waited to see

the engine run, for inventor, “angel,” and workmen all tried to see who

could get out of the shop quickest. I won the race as I had the best

start.

I suppose there is just such a crowd of crude minds still besieging the

work-shops, men who seem incapable of finding out what has been already

done, and so keep on, year after year, threshing old straw.

The “Harmonic Telegraph”

All the men I worked for at that time were not of that type. There were

a few very different. Among them, dear old Moses G. Farmer, perhaps the

leading practical electrician of that day. He was full of good ideas,

which he was constantly bringing to Williams to have worked out. I did

much of his work and learned from him more about electricity than ever

before or since. He was electrician at that time for the United States

Torpedo Station at Newport, Rhode Island, and in the early winter of

1874 I was making for him some experimental torpedo exploding apparatus.

That apparatus will always be connected in my mind with the telephone,

for one day when I was hard at work on it, a tall, slender,

quick-motioned man with pale face, black side whiskers, and drooping

mustache, big nose and high sloping forehead crowned with bushy, jet

black hair, came rushing out of the office and over to my work bench. It

was Alexander Graham Bell, whom I saw then for the first time. He was

bringing to me a piece of mechanism which I had made for him under

instructions from the office. It had not been made as he had directed

and he had broken down the rudimentary discipline of the shop in coming

directly to me to get it altered. It was a receiver and a transmitter of

his “Harmonic Telegraph,” an invention of his with which he was then

endeavoring to win fame and fortune. It was a simple affair by means of

which, utilizing the law of sympathetic vibration, he expected to send

six or eight Morse messages on a single wire at the same time, without

interference.

[Illustration: _Home of Mrs. Mary Ann (Brown) Sanders, Salem, Mass.,

where Professor Bell carried on experiments for three years which

led to the discovery of the principle of the telephone_]

Although most of you are probably familiar with the device, I must, to

make my story clear, give you a brief description of the instruments,

for though Bell never succeeded in perfecting his telegraph, his

experimenting on it led to a discovery of the highest importance.

[Illustration: _The Birthplace of the Telephone, 109 Court Street,

Boston.—On the top floor of this building, in 1875, Prof. Bell

carried on his experiments and first succeeded in transmitting

speech by electricity_]

The essential parts of both transmitter and receiver were an

electro-magnet and a flattened piece of steel clock spring. The spring

was clamped by one end to one pole of the magnet, and had its other end

free to vibrate over the other pole. The transmitter had, besides this,

make-and-break points like an ordinary vibrating bell which, when the

current was on, kept the spring vibrating in a sort of nasal whine, of a

pitch corresponding to the pitch of the spring. When the signalling key

was closed, an electrical copy of that whine passed through the wire and

the distant receiver. There were, say, six transmitters with their

springs tuned to six different pitches and six receivers with their

springs tuned to correspond. Now, theoretically, when a transmitter sent

its electrical whine into the line wire, its own faithful receiver

spring at the distant station would wriggle sympathetically but all the

others on the same line would remain coldly quiescent. Even when all the

transmitters were whining at once through their entire gamut, making a

row as if all the miseries this world of trouble ever produced were

concentrated there, each receiver spring along the line would select its

own from that sea of troubles and ignore all the others. Just see what a

simple, sure-to-work invention this was; for just break up those various

whines into the dots and dashes of Morse messages and one wire would do

the work of six, and the “Duplex” telegraph that had just been invented

would be beaten to a frazzle. Bell’s reward would be immediate and rich,

for the “Duplex” had been bought by the Atlantic and Pacific Telegraph

Company, giving them a great advantage over their only competitor, the

Western Union Company, and the latter would, of course, buy Bell’s

invention and his financial problems would be solved.

[Illustration: _The Garret, 109 Court St., Boston, where Bell

Verified the Principle of Electrical Speech Transmission_]

All this was, as I have said, theoretical, and it was mighty lucky for

Graham Bell that it was, for had his harmonic telegraph been a well

behaved apparatus that always did what its parent wanted it to do, the

speaking telephone might never have emerged from a certain marvelous

conception, that had even then been surging back of Bell’s high forehead

for two or three years. What that conception was, I soon learned, for he

couldn’t help speaking about it, although his friends tried to hush it

up. They didn’t like to have him get the reputation of being visionary,

or—something worse.

To go on with my story; after Mr. Farmer’s peace-making machines were

finished, I made half a dozen pairs of the harmonic instruments for

Bell. He was surprised, when he tried them, to find that they didn’t

work as well as he expected. The cynical Watson wasn’t at all surprised

for he had never seen anything electrical yet that worked at first the

way the inventor thought it would. Bell wasn’t discouraged in the least

and a long course of experiments followed which gave me a steady job

that winter and brought me into close contact with a wonderful

personality that did more to mould my life rightly than anything else

that ever came into it.

I became mightily tired of those “whiners” that winter. I called them by

that name, perhaps, as an inadequate expression of my disgust with their

persistent perversity, the struggle with which soon began to take all

the joy out of my young life, not being endowed with the power of

Macbeth’s weird sisters to

“Look into the seeds of time,

And say which grain will grow and which will not.”

Let me say here, that I have always had a feeling of respect for Elisha

Gray, who, a few years later, made that harmonic telegraph work, and

vibrate well-behaved messages, that would go where they were sent

without fooling with every receiver on the line.

Most of Bell’s early experimenting on the harmonic telegraph was done in

Salem, at the home of Mrs. George Sanders, where he resided for several

years, having charge of the instruction of her deaf nephew. The present

Y. M. C. A. building is on the site of that house. I would occasionally

work with Bell there, but most of his experimenting in which I took part

was done in Boston.

The Birth and Babyhood of the Telephone · 第 4 / 45 题