Category Archives: Telegraph history

Army Signal Corps Field Buzzer, 1916

U.S. Army Signal Corps Field Buzzer.  Technical Equipment of the Signal Corps: 1916.

U.S. Army Signal Corps Field Buzzer. Technical Equipment of the Signal Corps: 1916.

A hundred years ago today (September 21, 1914), the Calumet (Mich.) News carried an article entitled, “Communication Big Factor in Modern War Machinery,” which explained the technological developments in communications in use in modern warfare. The article runs down the developments in telegraph, telephone, and wireless in use in the war.

One that caught my attention was a rather ingenious telephone-telegraph that was used in situations where the lines were in poor shape. As the article points out, lines near the battlefield “are often laid at high speed, are of high resistance and are frequently leaky.” In those cases, it described a “special instrument known as the buzzer.”

It describes the instrument as a metal-lined leather case with a dry battery, induction coil and interrupter, key, telephone transmitter, and telephone receiver. It could be used as a field telephone, or by use of the buzzer, the key could send out an intermittent current which would traverse the line where the distant receiver would give out a sharp note. Thus, the telephone could be used to send Morse code via audio.

It notes that these “Morse signals are audible over an incredibly bad line.” It cites one case where a signal was successfully sent over bare wires lying on wet ground.

The schematic of the instrument is shown here:

The field buzzer itself is shown above as it would be carried, and it is shown dismantled here:

This diagram of a typical hookup of the buzzer shows its use with a line of dubious quality:

 

References

Camp Telephone for the Army, Telegraph and Telephone Age, July 1, 1917, page 302.


 

The Shohola Train Wreck of 1864: A Telegrapher’s Negligence

Shohola Tran Wreck of 1864

Shohola Tran Wreck of 1864

A hundred fifty years ago, the technology of the telegraph had been adopted by the railroads, and great reliance had been placed upon the device. And the Shohola train wreck of July 15, 1864, shows the horrific consequences apparently caused by one telegrapher’s negligence. On that day, at least sixty men died because the telegrapher failed to relay a message.

On that day, an 18 car train was transporting 833 Confederate prisoners of war, many of whom had been captured at the Battle of Cold Harbor.  They were guarded by 128 members of the Union Veteran Reserve Corps.  The train was travelling from from New York, where the prisoners had arrived by steamer from Maryland, to the prison at Elimira, New York.

The train was designated as an “extra,” meaning that it was not scheduled service, but instead followed behind a scheduled train. The scheduled train displayed flags which alerted that the extra was following, and continued to have the right of way.

The train with the prisoners had been delayed while guards located missing prisoners, and while it waited for a drawbridge. It was running four hours behind schedule by the time it got to Shohola, Pennsylvania. At about 2:45 PM, the train was on the single track between Shohola and Lackawaxen junction, proceeding at about 25 miles per hour.

At Lackawaxen was stationed the telegraph operator Douglas “Duff” Kent. In the morning, he had seen the scheduled train pass with the warning flags, and it was his responsibility to hold all eastbound traffic until the extra train had passed. At about 2:30, a coal train arrived at Lackawaxen, and the conductor asked whether the track was clear to Shohola. The telegrapher, Kent, answered in the affirmative.

The trains were barely a hundred yards apart when the horrified engineers realized their predicament. There was no time for the engineers to even jump from the engine, and both were killed, along with the two firemen and one brakeman. In addition, 51 Confederate soldiers and 17 Union soldiers were killed. The Confederate dead included thirteen members of the 51st North Carolina Infantry. Two prisoners escaped and were never accounted for.

Most of the dead were buried alongside the track. The Confederate prisoners were buried in coffins hastily constructed from the lumber of the wreckage, four to a coffin. The Union soldiers were buried singly in pine coffins which had been brought to the scene. In 1911, all of the dead were exhumed and brought to Woodlawn National Cemetery in Elmira. The citizens of Shohola, Pennsylvania, and Barryville, New York, tended to the wounded “without regard to the color of their uniforms.”

Soon after the collision, Judge T.J. Ridgway arrived on the scene and impaneled a jury. An inquest was held and the burials proceeded. The verdict was that no railroad employee was to blame, and that the accident was unavoidable.

The New York Daily Tribune of July 18, 1864 noted that it was “desirable that something more than the sham investigation by the jury should take place.” The Daily Tribune reports that the telegraph operator is “said to have been intoxicated the night before, but until he can be met with, and the public will demand of the State authorities to see that he is, and can be confronted with the conductor of the coal train, it will not do to place too much reliance on the statement of the latter.

The Tribune continues, “it is the duty of each telegraph clerk to telegraph to the clerk at the next depot immediately the train has passed his station. At Lackawaxen were were unable to see the book kept by the absconding operator.”

And abscond he did. Other reports were that Kent “did not take the wreck very seriously,” and reportedly went to a dance that evening. When the public began to realize his role, he left town and was never seen again.

The Tribune’s reporter wrote:

Sadly familiar as the last three years have rendered the country and the public with tales of blood, scenes of slaughter, and the accumulated horrors of the battle-field, we are not yet so used to them as to feel unmoved when, on a smaller scale, some fearful railroad catastrophe brings them to us, face to face, amid the quiet of civil life. One of these terrible catastrophes, the most terrible that has happened in this country for some years, took place on Friday morning last, when the grave was again opened to receive a hecatomb of human life, offered at the shrine of managerial inefficiencyand subordinate recklessness.

References

The Great Shohola Train Wreck

Shohola Train Wreck at Wikipedia

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The Telegraph of 1797

Samuel F.B. Morse

Samuel F.B. Morse

When we think of the telegraph, we usually think of the version invented by Morse (and others).  But the word “telegraph” has been around a lot longer than that, and much thought was given to the problem of rapidly communicating over long distances.

This is made clear by the discussion of the telegraph in the 1797 edition of the Encyclopaedia Britannica.  I’ve scanned that article and have it posted at my website at this link.

1797 Encylopaedia Britannica Telegraph

 

The figure shown here is a representation of one possible scheme using 1797 technology.  It’s also clear that the author anticipated the great developments that took place in the coming decades:

Were telegraphs brought to so great a degree of perfection, that they could convey information speedily and distinctly; were they so much simplified, that they could be constructed and maintained at little expence–the advantages which would result from their use are almost inconceivable. Not to speak of the speed with which information could be communicated and orders given in time of war, by means of which misfortunes might be prevented or instantly repaired, difficulties removed, and disputes precluded, and by means of which the whole kingdom could be prepared in an instant to oppose an invading enemy; it might be used by commercial men to convey a commission cheaper and speedier than an express can travel. The capitals of distant nations might be united by chains of posts, and the settling of those disputes which at present take up months or years might then be accomplished in as many hours. An establishment of telegraphs might then be made like that of the post; and instead of being an expense, it would produce a revenue. Until telegraphs are employed to convey information that occurs very frequently, the persons who are stationed to work them will never become expert, and consequently will neither be expeditious nor accurate, though, with practice, there is no doubt but they will attain both in a degree of perfection of which we can at yet have but little conception.

For more books about the history of the telegraph, you can visit my old radio books page.