You are here

قراءة كتاب Harper's Young People, October 5, 1880 An Illustrated Weekly

تنويه: تعرض هنا نبذة من اول ١٠ صفحات فقط من الكتاب الالكتروني، لقراءة الكتاب كاملا اضغط على الزر “اشتر الآن"

‏اللغة: English
Harper's Young People, October 5, 1880
An Illustrated Weekly

Harper's Young People, October 5, 1880 An Illustrated Weekly

تقييمك:
0
No votes yet
المؤلف:
دار النشر: Project Gutenberg
الصفحة رقم: 3

src="@public@vhost@g@gutenberg@html@files@29174@29174-h@images@ill_003.jpg" alt="" title="" tag="{http://www.w3.org/1999/xhtml}img"/>

One of the most convenient materials for use is common tin, which can be obtained almost everywhere. A tin box can be melted apart, and cut into any desired shape. Pipes to convey liquids, steam, or gas can be made by cutting strips of the tin, and rolling them upon an iron rod. To make a pipe, say, a quarter of an inch in diameter, get an iron rod of that size, cut a strip of the tin about one inch wide, roll it upon the rod, allowing the edges to lap a little. If the tin be not bright, make it so by applying sal ammoniac with a small brush along the seam. Put on a little powdered resin, and then solder neatly by drawing the heated iron, with the solder clinging to it, over the joint. In this way a pipe strong and tight is obtained; and such pipes can be joined to one another indefinitely, in a straight line or at any angle. To unite them in a straight line, pass the end of one into the end of the other before soldering, or else wind an additional piece of tin over the two ends. To make a turn, or elbow, file the ends on a bevel, or slant, bring them together, and apply considerable solder for strength. If the solder be rightly put on, it will hold surprisingly.

A pretty device to illustrate the force of steam is shown in the accompanying picture. The boiler is a simple tin can, which need not be more than six inches high and four in diameter. To make the wheel, cut a circle of tin two inches in diameter, and pieces for the buckets, shaped as in the diagram. Bend each piece at right angles along the dotted line, and solder them one after another on the circumference of the wheel, which will then appear as in the picture. Bore a hole through the centre, insert a piece of wire for a shaft, and solder it fast at right angles to the wheel. File shoulders on the ends of the shaft, and mount it in uprights fastened to the top of the boiler. Make a small opening through the top of the boiler, and place over it a little spout in such a position as to send a current of steam directly into the buckets of the wheel. Make also a larger opening in or near the top of the boiler, and surround it with a neck to receive a cork. Through this the water is introduced. For this purpose a small funnel will be found convenient.

When all is complete, the boiler may be filled about half full, and set on a hot stove. When the water boils, the steam will emerge through the spout, and propel the wheel. As the steam constantly escapes, no explosion need be apprehended. To remove all possibility of creating too much pressure, place the cork in the neck very lightly, so that it will pop out if more steam is generated than can escape through the spout. Then the miniature steam-engine and boiler may be regarded as harmless as a tea-kettle. As the quantity of steam that can be produced is very limited, care must be taken that there be no leaks, that the mouth of the spout be quite small, and that the current of steam be discharged accurately into the buckets. The bearings of the shaft should be oiled, and everything arranged so that there will be the least possible friction. Then the wheel may be expected to spin very rapidly.


[Begun in No. 46 of Harper's Young People, September 14.]

WHO WAS PAUL GRAYSON?

BY JOHN HABBERTON,

Author of "Helen's Babies."

Chapter IV.

WHO WILL TELL?

As Benny Mallow hid himself in a barn in the yard into which he had jumped, he had only one distinct thought in his mind: he wished that the Italian had never come to Laketon at all—never come to the United States, in fact. He wished that the Italians had never heard of such a place as America: if one of the race had to discover it, he need not have gone and let his fellow-countrymen know all about it, so that they should come over with organs and monkeys, and get boys into trouble—boys that weren't doing a thing to that organ-grinder when he threw a stick at them. What made the fellow go into the school yard, anyway? No one asked him to come. Now there would be a fuss made, of course; and if there was anything that Benny hated more than all other things, it was a fuss.

But what if the organ-grinder should really prove to be dead? Oh! that would be too dreadful; all the boys would have to be hanged, to be sure of punishing the murderer, just as the whole class was sometimes kept in for an hour because something wrong had been done, and no one would tell who did it.

Benny could not bear the thought of so dreadful a termination to his life, for he knew of a great deal worth living for; besides, his mother would need his help as soon as he grew old enough to earn anything. What should he do? Wait until dark, and then run away, and tramp off to the West, where other runaway boys went, or should he make for the sea-board, and from there to South America, from which country he had heard that criminals could not be brought back?

BENNY MALLOW IN THE BARN.BENNY MALLOW IN THE BARN.

But first he ought to learn whether the man was really dead; it might not be necessary to run away at all. But how should he find out? Suddenly he remembered that Mr. Wardwell's barn, in which he was, had a window opening on the alley; so he crept up into the loft, and spent several moments in trying to look up the alley without putting his head out of the window. Finally he partly hid his face by holding a handful of hay in front of it, and peered out. Between the stalks of hay he was delighted to see the organ-grinder on his feet, although two men were helping him. They were not both men, either, Benny saw, after more careful looking, for one of them was Paul Grayson; but the other—horror of horrors—was Mr. Stott, a justice of the peace. Benny knew that Justice Stott had sent many men to jail for fighting, and if Grayson should tell who took part in the attack, Benny had not the slightest doubt that half of Mr. Morton's pupils would be sent to jail too.

This seemed more dreadful than the prospect of being hanged had done, but it could be done more quickly. Benny determined at once that he must find out the worst, and be ready for it, so he waited until the injured man and his supporters had turned the corner of a street, and were out of sight; then he bounded into the alley again, hurried home, seized a basket that was lying beside the back door, and a moment later was sauntering along the street, whistling, and moving in a direction that seemed to be that in which he might manage to meet the three as if by accident. He did not take much comfort out of his whistling, for in his heart he felt himself to be the most shameful hypocrite that had existed since the days of Judas Iscariot, and the recollection of having been told by his Sunday-school teacher within a week that he was the best boy in his class seemed to make him feel worse instead of better; and his mind was not relieved of this unpleasant burden until at a shady corner he came suddenly upon the organ-grinder and his supporters, when he instantly exchanged his load for a new one.

"Why, what's the matter, Paul?" asked Benny, with as much surprise in his tone and manner as he could affect.

Justice Stott had just gone into an adjacent yard for water for the Italian, when Grayson answered, with a very sober face, "You know as well as I do, Benny, and I saw the whole crowd."

"I don't!" exclaimed Benny, in all the desperation of cowardice. "I didn't do or see—"

"Sh—h!" whispered

Pages