OLIVER EVANS AND THE STEAM ENGINE.

A correspondent of the New York _Times_, deeming that far too much

credit has been given to foreigners for the practical development of

the steam engine, contributes the following interesting _resume_:

Of all the inventions of ancient or modern times none have more

importantly and beneficently influenced the affairs of mankind than

the double acting high pressure steam engine, the locomotive, the

steam railway system, and the steamboat, all of which inventions are

of American origin. The first three are directly and the last

indirectly associated with a patent that was granted by the State of

Maryland, in 1787, being the very year of the framing of the

Constitution of the United States. In view of the momentous nature of

the services which these four inventions have rendered to the material

and national interests of the people of the United States, it is to be

hoped that neither they nor their origin will be forgotten in the

coming celebration of the centennial of the framing of the

Constitution.

The high pressure steam engine in its stationary form is almost

ubiquitous in America. In all great iron and steel works, in all

factories, in all plants for lighting cities with electricity, in

brief, wherever in the United States great power in compact form is

wanted, there will be found the high pressure steam engine furnishing

all the power that is required, and more, too, if more is demanded,

because it appears to be equal to every human requisition. But go

beyond America. Go to Great Britain, and the American steam

engine--although it is not termed American in Great Britain--will be

found fast superseding the English engine--in other words, James

Watt's condensing engine. It is the same the world over. On all the

earth there is not a steam locomotive that could turn a wheel but for

the fact that, in common with every locomotive from the earliest

introduction of that invention, it is simply the American steam engine

put on wheels, and it was first put on wheels by its American

inventor, Oliver Evans, being the same Oliver Evans to whom the State

of Maryland granted the before mentioned patent of 1787.

He is the same Oliver Evans whom Elijah Galloway, the British writer

on the steam engine, compared with James Watt as to the authorship of

the locomotive, or rather "steam carriage," as the locomotive was in

those days termed. After showing the unfitness of Mr. Watt's low

pressure steam engine for locomotive purposes, Mr. Galloway, more than

fifty years ago, wrote: "We have made these remarks in this place in

order to set at rest the title of Mr. Watt to the invention of steam

carriages. And, taking for our rule that the party who first attempted

them in practice by mechanical arrangements of his own is entitled to

the reputation of being their inventor, Mr. Oliver Evans, of America,

appears to us to be the person to whom that honor is due." He is the

same Oliver Evans whom the _Mechanics' Magazine_, of London, the

leading journal of its kind at that period, had in mind when, in its

number of September, 1830, it published the official report of the

competitive trial between the steam carriages Rocket, San Pariel,

Novelty, and others on the Liverpool and Manchester Railway.

In that trial the company's engines developed about 15 miles in an

hour, and spurts of still higher speed. The _Magazine_ points to the

results of the trial, and then, under the heading of "The First

Projector of Steam Traveling," it declares that all that had been

accomplished had been anticipated and its feasibility practically

exemplified over a quarter of a century before by Oliver Evans, an

American citizen. The _Magazine_ showed that many years before the

trial Mr. Evans had offered to furnish steam carriages that, on level

railways, should run at the rate of 300 miles in a day, or he would

not ask pay therefor. The writer will state that this offer by Mr.

Evans was made in November, 1812, at which date not a British steam

carriage had yet accomplished seven miles in an hour.

In 1809 Mr. Evans endeavored to establish a steam railway both for

freight and passenger traffic between New York and Philadelphia,

offering to invest $500 per mile in the enterprise. At the date of his

effort there was not a railway in the world over ten miles long, nor

does there appear to have been another human being who up to that date

had entertained even the thought of a steam railway for passenger and

freight traffic. In view of all this, is it at all surprising that the

British _Mechanics' Magazine_ declared Oliver Evans, an American, to

be the first projector of steam railway traveling? In 1804 Mr. Evans

made a most noteworthy demonstration, his object being to practically

exemplify that locomotion could be imparted by his high pressure steam

engine to both carriages and boats, and the reader will see that the

date of the demonstration was three years before Fulton moved a boat

by means of Watt's low pressure steam engine. The machine used

involved the original double acting high pressure steam engine, the

original steam locomotive, and the original high pressure steamboat.

The whole mass weighed over twenty tons.

Notwithstanding there was no railway, except a temporary one laid over

a slough in the path, Mr. Evans' engine moved this great weight with

ease from the southeast corner of Ninth and Market streets, in the

city of Philadelphia, one and a half miles, to the River Schuylkill.

There the machine was launched into the river, and the land wheels

being taken off and a paddle wheel attached to the stern and connected

with the engine, the now steamboat sped away down the river until it

emptied into the Delaware, whence it turned upward until it reached

Philadelphia. Although this strange craft was square both at bow and

stern, it nevertheless passed all the up-bound ships and other sailing

vessels in the river, the wind being to them ahead. The writer repeats

that this thorough demonstration by Oliver Evans of the possibility of

navigation by steam was made three years before Fulton. But for more

than a quarter of a century prior to this demonstration Mr. Evans had

time and again asserted that vessels could be thus navigated. He did

not contend with John Fitch, but on the contrary tried to aid him and

advised him to use other means than oars to propel his boat. But Fitch

was wedded to his own methods. In 1805 Mr. Evans published a book on

the steam engine, mainly devoted to his form thereof. In this book he

gives directions how to propel boats by means of his engine against

the current of the Mississippi. Prior to this publication he

associated himself with some citizens of Kentucky--one of whom was the

grandfather of the present Gen. Chauncey McKeever, United States

Army--the purpose being to build a steamboat to run on the

Mississippi. The boat was actually built in Kentucky and floated to

New Orleans. The engine was actually built in Philadelphia by Mr.

Evans and sent to New Orleans, but before the engine arrived out the

boat was destroyed by fire or hurricane. The engine was then put to

sawing timber, and it operated so successfully that Mr. Stackhouse,

the engineer who went out with it, reported on his return from the

South that for the 13 months prior to his leaving the engine had been

constantly at work, not having lost a single day!

The reader can thus see the high stage of efficiency which Oliver

Evans had imparted to his engine full 80 years ago. On this point Dr.

Ernst Alban, the German writer on the steam engine, when speaking of

the high pressure steam engine, writes: "Indeed, to such perfection

did he [Evans] bring it, that Trevithick and Vivian, who came after

him, followed but clumsily in his wake, and do not deserve the title

of either inventors or improvers of the high pressure engine, which

the English are so anxious to award to them.... When it is considered

under what unfavorable circumstances Oliver Evans worked, his merit

must be much enhanced; and all attempts made to lessen his fame only

show that he is neither understood nor equaled by his detractors."

The writer has already shown that there are bright exceptions to this

general charge brought by Dr. Alban against British writers, but the

overwhelming mass of them have acted more like envious children than

like men when speaking of the authorship of the double acting high

pressure steam engine, the locomotive, and the steam railway system.

Speaking of this class of British writers, Prof. Renwick, when

alluding to their treatment of Oliver Evans, writes: "Conflicting

national pride comes in aid of individual jealousy, and the writers of

one nation often claim for their own vain and inefficient projectors

the honors due to the successful enterprise of a foreigner." Many of

these writers totally ignore the very existence of Oliver Evans, and

all of them attribute to Trevithick and Vivian the authorship of the

high pressure steam engine and the locomotive. Yet, when doing so, all

of them substantially acknowledge the American origin of both

inventions, because it is morally certain that Trevithick and Vivian

got possession of the plans and specifications of his engine. Oliver

Evans sent them to England in 1794-5 by Mr. Joseph Stacy Sampson, of

Boston, with the hope that some British engineer would approve and

conjointly with him take out patents for the inventions. Mr. Sampson

died in England, but not until after he had extensively exhibited Mr.

Evans' plans, apparently, however, without success. After Mr.

Sampson's death Trevithick and Vivian took out a patent for a high

pressure steam engine. This could happen and yet the invention be

original with them.

But they introduced into Cornwall a form of boiler hitherto unknown in

Great Britain, namely, the cylindrical flue boiler, which Oliver Evans

had invented and used in America years before the names of Trevithick

and Vivian were associated with the steam engine. Hence, they were

charged over fifty years ago with having stolen the invention of Mr.

Evans, and the charge has never been refuted. Hence when British

writers ignore the just claims of Oliver Evans and assert for

Trevithick and Vivian the authorship of the high pressure steam engine

and the locomotive, they thereby substantially acknowledge the

American origin of both inventions. They are not only of American

origin, but their author, although born in 1755, was nevertheless an

American of the second generation, seeing that he was descended from

the Rev. Dr. Evans Evans, who in the earlier days of the colony of

Pennsylvania came out to take charge of the affairs of the Episcopal

Church in Pennsylvania.

The writer has thus shown that with the patent granted by the State of

Maryland to Oliver Evans in 1787 were associated--first, the double

acting high pressure steam engine, which to-day is the standard steam

engine of the world; second, the locomotive, that is in worldwide use;

third, the steam railway system, which pervades the world; fourth, the

high pressure steamboat, which term embraces all the great ocean

steamships that are actuated by the compound steam engine, as well as

all the steamships on the Mississippi and its branches.

The time and opportunity has now arrived to assert before all the

world the American origin of these universally beneficent inventions.

Such a demonstration should be made, if only for the instruction of

the rising generation. Not a school book has fallen into the hands of

the writer that correctly sets forth the origin of the subject matter

of this paper. He apprehends that it is the same with the books used

in colleges and universities, for otherwise how could that parody on

the history of the locomotive, called "The Life of George Stephenson,

Railway Engineer," by Samuel Smiles, have met such unbounded success?

To the amazement of the writer, a learned professor in one of the most

important institutions of learning in the country did, in a lecture,

quote Smiles as authority on a point bearing on the history of the

locomotive! It is true that he made amends by adding, when his lecture

was published, a counter statement; but that such a man should have

seriously cited such a work shows the widespread mischief done among

people not versed in engineering lore by the admirably written romance

of Smiles, who as Edward C. Knight, in his Mechanical Dictionary,

truly declares, has "pettifogged the whole case." If, as Prof. Renwick

intimates, "conflicting national pride" has led the major part of

British writers to suppress the truth as to the origin of the high

pressure steam engine, the locomotive, and the steam railway system,

surely true national pride should induce the countrymen of Oliver

Evans to assert it. In closing this paper the writer will say, for the

information of the so-called "practical" men of the country, or, in

other words, those men whose judgment of an invention is mainly guided

by its money value, that Poor's Manual of Railroads in the United

States for 1886 puts their capital stock and their debts at over

$8,162,000,000. The value of the steamships and steamboats actuated by

the high pressure steam engine the writer has no means of

ascertaining. Neither can he appraise the factories and other plants

in the United States--to say nothing of the rest of the world--in

which the high pressure steam engine forms the motive power.

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Scientific American Supplement, No. 620, November 19,1887 · 第 10 / 40 题