The Project Gutenberg eBook ofThe Young MechanicThis ebook is for the use of anyone anywhere in the United States and most other parts of the world at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this ebook or online atwww.gutenberg.org. If you are not located in the United States, you will have to check the laws of the country where you are located before using this eBook.Title: The Young MechanicAuthor: James LukinRelease date: November 22, 2019 [eBook #60765]Most recently updated: October 17, 2024Language: EnglishCredits: Produced by Chris Curnow and the Online DistributedProofreading Team at http://www.pgdp.net (This file wasproduced from images generously made available by TheInternet Archive)*** START OF THE PROJECT GUTENBERG EBOOK THE YOUNG MECHANIC ***
This ebook is for the use of anyone anywhere in the United States and most other parts of the world at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this ebook or online atwww.gutenberg.org. If you are not located in the United States, you will have to check the laws of the country where you are located before using this eBook.
Title: The Young MechanicAuthor: James LukinRelease date: November 22, 2019 [eBook #60765]Most recently updated: October 17, 2024Language: EnglishCredits: Produced by Chris Curnow and the Online DistributedProofreading Team at http://www.pgdp.net (This file wasproduced from images generously made available by TheInternet Archive)
Title: The Young Mechanic
Author: James Lukin
Author: James Lukin
Release date: November 22, 2019 [eBook #60765]Most recently updated: October 17, 2024
Language: English
Credits: Produced by Chris Curnow and the Online DistributedProofreading Team at http://www.pgdp.net (This file wasproduced from images generously made available by TheInternet Archive)
*** START OF THE PROJECT GUTENBERG EBOOK THE YOUNG MECHANIC ***
CONTAININGDIRECTIONS FOR THE USE OF ALL KINDS OF TOOLS,AND FOR THECONSTRUCTION OF STEAM ENGINES ANDMECHANICAL MODELS,INCLUDINGTHE ART OF TURNING IN WOOD AND METAL.
BY THEAUTHOR OF “THE LATHE AND ITS USES”“THE AMATEUR MECHANIC’S WORKSHOP,” &c.
FROM THE ENGLISH EDITION, WITH CORRECTIONS, &c.
G. P. PUTNAM’S SONS
NEW YORK27 WEST TWENTY-THIRD ST.
LONDON24 BEDFORD ST., STRAND
The Knickerbocker Press
1896
Entered according to Act of Congress, in the year 1871, byG. P. PUTNAM & SONS,in the Office of the Librarian of Congress at Washington.
Entered according to Act of Congress, in the year 1871, byG. P. PUTNAM & SONS,in the Office of the Librarian of Congress at Washington.
In presenting the American edition of this little work to the public, we believe we are supplying a want that has long been felt by the Young Mechanics of this country, and many others who desire to become versed in the practical use of tools. We know of no other book published in this country or England, in which the method of using tools is so clearly explained; and although written more especially for boys and beginners, it contains much information that will be of great value to the practical mechanic. The author is evidently thoroughly acquainted with his subject, and understands how to communicate his ideas in a simple and concise manner.
The first six chapters are devoted to the description of Tools for working wood and the manner of using them, beginning with the simplest operations, requiring but few tools, and gradually leading on to the more difficult, giving examples of all the methods of joining and finishing work that are in common use among good workmen, and in this connection we would like to call attention to the small number of tools the author requires for performing all these different operations, the idea among amateurs and boys generally being, that if you only have tools enough you can make anything. This is not so, and if the beginner will follow the advice of the author, and buy a few good tools, and learn the use of them thoroughly, and gradually add to his stock as his knowledge of their use increases, he will find it greatly to his advantage.
The next five chapters relate to the lathe, and the art of turning. The author follows the same plan as in the first part of the book, and gives more practical information in these few pages than we have seen in any other book on the subject, most of them being written apparently for finished mechanics, and not for beginners. The Art of Turning as an amusement, is beginning to attract considerable attention in this country, but not so muchas it deserves and would obtain, if it were more generally known how many beautiful and useful articles can be produced in the lathe. The expense of the necessary tools has deterred many from attempting to learn this branch of mechanics; but we believe if any one has the time and patience to devote to the work, they will never have occasion to regret the money spent for this purpose.
The last four chapters contain practical instruction in model-making and working in metal. This part of the book we would particularly recommend to inventors who desire to make their own models, as it contains information in regard to files, drills, and the various small tools used on metal, and also directions for laying out work, which are invaluable to a novice in such operations, and will save him much time and trouble.
As this book was originally published in London, where the facilities for getting many kinds of small tools are better than in this country, perhaps a little advice as to the best way of getting such tools as may be required will not be out of place. In most of the large Hardware Stores, carpenters’ tools will be found, put up in chests, at prices varying from five to fifty dollars or more; but we should not advise the amateur to buy any of these, as the quality of the tools is not always reliable, and as they are usually fitted up to make as much show as possible for the money, they contain many tools which are of very little use. The best way is to make a list of the tools required, and select them for yourself. The most important thing is to have the Cutting tools of good quality. We give below the names of some of the best makers of tools; if you purchase any of these, you may be sure of the quality.
If you live in the City, you will probably find no difficulty in procuring some of the above makes; but if you cannot find them there are some others that are good, and you must rely somewhat on the dealer. In regard to the probable cost of the tools, a set such as is described on pages 29 and 30, would cost from fifteen to twenty dollars.
Of Foot Lathes, the following are some of the makers:
From some of the above the amateur will probably be able to select a Lathe to suit him in size and price. The lowest price at which a serviceable lathe can be bought is about forty dollars this is without tools or chucks. About fifteen dollars more would be required for these. Lathes can be bought from this price up to hundreds of dollars, according to the style of lathe and the number of chucks, but of course the beginner would not need an expensive lathe, and seventy-five to one hundred dollars would buy a lathe and tools suitable for all kinds of small work in wood, ivory, or metal.
This volume being an exact reprint of the English edition, it may be well to explain that the material calledDealin England is much the same as ourPine. The article called in England a “Carrier,” is with us called adog(see pp. 112, 114, 115). Articles priced in English currency would cost here now about 35 cents to the English shilling, or $7 per £ stg.
Of all people in the world who must not be neglected are, first and foremost, “Our Boys,” and, of all boys,mechanical boysdeserve a very high place in our estimation. Whatever others may be, these, at any rate, are possessed of sound heads, and willing hands. Therefore, to help these to carry out their designs, appears to be a special duty of those who, once mechanical boys themselves, have lived to become the progenitors of others. In fulfilment of this very duty I have taken up the pen, and with special reference toyoungmechanics, but without entirely forgetting those of maturer growth, I have thrown together a few hints upon that absorbing question, “How to make and how to use?” In doing this, I have endeavoured to carry out the plan ofsmall beginnings, going from the simplest and easiest to the more complicated and difficult work, although here and there, of sheer necessity, a somewhat different order has been observed. The workshops of King’s College School prove the capabilities of boys to do high-class mechanical work when their efforts are rightly directed by a master’s hand. Where the latter cannot be obtained, guide-books must, however insufficiently, take his place; but whether instruction in mechanical art be oral or otherwise, practice and perseverance are the secrets of success.
“Qui studet optatam cursu contingere metam,Multa tulit fecitque puer; sudavit et alsit.”
“Qui studet optatam cursu contingere metam,Multa tulit fecitque puer; sudavit et alsit.”
“Qui studet optatam cursu contingere metam,
Multa tulit fecitque puer; sudavit et alsit.”
There never was a time when a taste for practical mechanics was so general among boys as it is now, in this year of grace 1870. There are comparatively few homes in which evidences of this hobby are not apparent in every odd nook and corner, in the shape of carpenter’s tools, not always in first-rate condition, nor by any means generally in their proper places. A saw here, a hammer there, a gimlet, bradawl, or chisel elsewhere.
This probably results from the giant strides which have been made of late years in mechanical enterprise, and the introduction of machinery into every department, as a means of saving labour and facilitating the production of the various necessaries of life.
Man is an imitative animal, and in this as in other things “the child is father to the man;” and hence it comes to pass that the boy whose eyes are continually resting upon machinery of one sort or another (agricultural implements,if a villager; engines for planing, sawing, turning, and so forth, if resident in a town) sooner or later feels an innate desire to construct models of these gigantic mechanical labourers, by whose incessant but unfelt toil our several daily needs are so cheaply and plentifully supplied.
Even if the youthful mind does not always display highly-developed inventive faculties, there is very generally manifested a desire of personally constructing some one or more of those articles which conduce to the gratification of a particular hobby. If the boy has a taste for natural history, cases and cabinets will be made, for the reception of eggs, butterflies, and insects, or to contain stuffed specimens of animals and birds. If he has within him the elements of a sailor, his ingenuity will be exercised upon model boats and ships. If fond of dumb pets, rabbit hutches, dove-cots, or cages will afford him opportunities for the exercise of his constructive powers, and thus the young mechanic frequently lays the foundation of future eminence in that particular line of life to which his tastes naturally lead him.
There are few boyish hobbies in which assistance has not of late years been given by instruction books and guides of a high degree of excellence—natural history, botany, gardening, rearing and breeding all manner of pets—to each of these, well-written volumes have been devoted by able and experienced writers, but mechanical andconstructive art has been somewhat neglected. Here and there, in periodical magazines, a few pages are dedicated to the subject, but no book about practical mechanics, written expressly for boys, has yet appeared.
The author of the present volume, himself father of four lads,allof whom in turn occasionally try their hands at this kind of work, and who has himself for many years practised the mechanical arts of carpentry, turning, and model-making, hopes that the hints contained herein may prove valuable to those young friends whom he now addresses. Some of the following chapters will be arranged for very little boys, some for those who are older, while it is believed that other parts of the work may not prove altogether useless to those who have dropped jacket and knickerbockers and rejoice in the vigour of manhood. Thus the little boy, who receives the book as a present, will find it a fast and faithful friend as his years, and, we trust, knowledge and bodily powers increase.
“Small boys need few tools, but much perseverance.” Let this be their motto, as it will stand them in good stead. A pocket-knife, gimlet, hammer, and a few nails will generally serve their purpose; but there is one other tool, namely, a square, which is of great importance, and of which it is well to learn the use as early as possible. A small saw and a bradawl may also be added to the list, and likewise a chisel half an inch wide. Thus equipped,a very youthful carpenter can do a good deal, and, let me tell him, a good deal has been often done without even this moderate supply of tools. It must be taken for granted that the knife and chisel are sharp, because blunt tools make bad work, and by far the best plan for small boys is to get some friend to sharpen them when blunt, as the operation is not easy and requires practice. It is a very foolish plan to try and work with a blunt knife, for the fingers are just as much in danger; and a boy who intends to learn how to use tools must learn at the commencement to use them with due care, so as not to damage himself.
There are small boxes of tools sold, containing generally a wooden mallet, saw, plane, chisel, and gimlet, at about 3s. 6d. or even 5s. Such a box is simply useless. The tools are of iron—will not take a good edge, and are generally disposed to bend and twist. Avoid these, and buy, or get a friend to buy, those I have named, of good quality, and be sure to take care of them, for which purpose you may try your hand at making a box. For this purpose, you will require some thin board (half-inch thick) planed on both sides. (The carpenter will prepare this for you.) Let us see how much you will need. Measure your longest tool, the chisel or saw, if the latter is quite a small one fit to go into a little box; if not, it can be hung on a nail, and you can make your box to contain your knife and chisel and gimlets. I daresay if the box is 9 incheslong, 4 inches wide, and 3 inches deep, it will be large enough to take these few tools, for I have just now measured such a hammer and chisel as I have recommended, and find them each about 9 inches in length. The top and bottom of a box should project a little all round, so that you will want them about an inch and a half wider and longer, which will also allow for the thickness of the wood; for you must remember we have given the size of the boxinside. To make this clear, I shall here give a plan of the bottom of the box (Fig. 1).
Fig. 1.
Fig. 1.
Fig. 2.
Fig. 2.
Fig. 3.
Fig. 3.
It is 10½ inches long, and 5½ inches wide. The broad black line shows where the edges of the sides and ends will come, these being half an inch thick, so that there is a quarter of an inch all round the outside as a border. Reckon across and you will understand this better. A quarter of an inch outside, half an inch for the black line (equals three-quarters of an inch), 4 inches for theinsidewidth, half an inch again for the black line, and a quarter of an inch outside as before,—altogether making 5½ inches. Now reckon the length. A quarter-inch border, half an inch for the black line, 9 inches inside, half inch for the second black line, and another quarter outside—making 10½ inches. You require, therefore, two boards 10½ inches long and 4½ wide for the top and bottom. Now the two long sides and the ends are to be 3 inches wide to form the depth of the box, and here you want no extrawidth, but as theinsideof your box is to be 9 inches long, and the sides are usually nailed over the ends, like Fig. 2, where I have shown them put together, you see that you must have thesidesas much longer than 9 inches as will allow them to lap over the ends; that is, half an inch at each end where I have made them black, or altogether, one inch; so that you will want two pieces 10 inches long and 3 wide. The ends will be also 3 inches wide and 4 inches the other way, and here no additional size is needed. Now, the usual way to cut the sides is to get a narrow strip of board of the required width and thickness, and long enough to make both the sides and ends, just such a piece as Fig. 3, on which are marked the lines where it will have to be cut across, and you will easily perceive that you require 28 inches in length and 3 in width.
But you must understand that when you cut with a saw you waste a little of the wood, which falls in the shape ofsawdust, and so if you did not allow for this, your box would be too small. The waste depends on the thickness of the edge of the saw, where you will, if you examine it, see that the teeth spread out right and left to prevent it from sticking fast as it is used. Probably, you would waste three-eighths of an inch, which is nearly half an inch in cutting off the pieces, so that instead of a piece exactly 28 inches long, you must have it 28½ inches, or even a little more.
I want you to understand all this before you set to work, even though at first you may get a carpenter to measure and cut it for you; because most small boys take no trouble of this kind, and consequently they are sure to make their boxes too large or too small, and they look very bad when done. However, as I said before, I expect my young readers to understand what they are about, and they must set out their work carefully, or they will never get on so as to be able to make good use of the later chapters of this book. A carpenter’s rule is made like this (Fig. 4).
Fig. 4.
Fig. 4.
Sometimes there is a brass slide, to add to its length when necessary, and sometimes it is hinged so as to fold up again. If you want one for your box, you can get it so made, when it will go in nicely. It is 2 feet long—1 foot on each side of the central joint. A foot is 12 inches; the whole rule, therefore, is 24 inches. Now, you will see that each of these inches is divided by short lines into eight equal parts, called eighths; at the second, the line is rather longer, this being a quarter of an inch; at the fourth, there is a still longer line, this being the half-inch; then comes another eighth, then the three-quarters, another eighth, and the inch is made up,—eight-eighths being equal to one whole inch. Very likely you will find oneedgeof the rule, or sometimes only oneinch, divided into smaller parts, which are sixteenths, or half-eighths; and sometimes, but not very often, divisions still smaller are used, which are half-sixteenths, or thirty-seconds, because thirty-two such divisions make the complete inch. Three feet make one yard, but carpenters always reckon by the foot and inch, and by eighths and sixteenths of an inch. In some trades the inch is divided into ahundredparts, and work is measured up and fitted so carefully, that it would be considered faulty if a mistake of less than athousandthof an inch were made; but you will not yet understand how it is possible even tomeasureso very small a quantity. You should certainly learn and understand how to measure with acommon two-foot rule, and when you can add one to your box of tools, do so.
Now, let us examine the tool called a square, without which the marks could not readily be drawn as a guide for the saw, where the strip of board is to be cut to make the sides and ends of the proposed box. Here is a drawing of one (Fig. 5).
Fig. 5.
Fig. 5.
Fig. 6.
Fig. 6.
It is a handle and a blade, like a knife half opened, the one being fixed exactly square, or at right angles with the other. The blade is thinner than the handle, and when the latter is placed as in Fig. 6, a line marked across the board against the edge of the blade will be, of course, square to the side, so that when cut off, the piece will be like the end of Fig. 6. This is not the shape which the sides of boxes generally have when made by small boys, because they have not a square, and do not know how to work properly. Nevertheless, ifoneend of a board is cut square, you might get the piece right by measuring the samedistance on each side (say 10½ inches), and drawing a line across from point to point, as a guide for the course of the saw. But, then, as it is absolutely necessary that the end of the board should be square to the side, to do this you had better get a proper square at once, and learn how to use it. You will, indeed, find this tool most necessary for all kinds of work, and you will be quite unable to do without it, even though you only have, besides, a knife and gimlet.
Now, if you want to cut off a piece of board with the saw, you mustnever cut out the line you have marked as a guide by the help of your square, because if you do, you will get the piece too short, owing to the width of the saw-cut which I explained before. Cut, therefore,justbeyond it, leaving it upon the piece you are going to use for the side of your box, or other article. At first, you will find it difficult to saw neatly and close to the line, but you will get used to it very soon; and if the saw does not go quite straight, you can trim the piece with a sharp knife neatly up to the line, which you see you could not do if you cut out that line by sawing exactly upon it. All these directions in little matters are very important, because you will find that, by attending to them, you will work well, and the various things you make will look neat and trim, and be fit to show to your friends.
Now, let us go on with the box, which was laid downjust to allow a little explanation about the carpenter’s rule and square. I shall suppose you to have cut off all the pieces quite squarely and neat, and that theedgesare also square to the sides, which you must take care to insure by keeping the blade of the saw upright when you use it. It is a good plan to measure and markbothsides of your board for this purpose, and to mark the edges from one of these lines to the other. You will then have guide-marks all round, and, by keeping close to these, you will be sure to cut your work truly. It would not so much signify if the long sides were cut a trifletoolong, as I shall explain presently; but theendsmust be square and true to measure, 4 inches by 3 inches. You must now proceed to nail them together. This must be done with smallbrads, which are fine nails, and which for the present purpose may be one inch long. If your pieces are all exact to measure, draw a pencil line across the two side pieces, a quarter of an inch from the ends, by the help of the square, as if you wanted to cut off a quarter of an inch at each of those parts, and with your bradawl make two or three holes (three will be best) along those lines. Do not make the first and last too near the edges, or you will split the wood, and spoil the box. Now set up one of the short pieces, and place upon it the piece which you have bored holes in. If you have a bench with a vice, you can screw up the short piece into it; but it will stand up very well upon thebench if you have no vice. It is now in the position of Fig. 7, C.
Fig. 7.
Fig. 7.
Hold it thus, and run the bradawl a little way into the lower piece, through the holes already made in the upper. Drive a brad through the middle hole first, which will hold it together, and then through the other two holes. If you have been careful, you will find this corner square and neat, and the wood not split in the least. Do the same with the other short piece, and then nail on the long side that is left. The frame of the box will now be complete.
I told you a short time ago, that it would not muchsignify if thesideswere cut too long. The reason is this: Suppose B to be the side half an inch too long. You would mark off 9 inches of the middle by two lines drawn with the square as before, which would be the length of theinsideof the box; you would then place the inner edges of the end pieces against these lines, and nail them on like A, and afterwards neatly saw off the two pieces which lap over these at each end. If the wood is likely to split when the holes are made for the nails, or if the workman is pressed for time, he very frequently does his work in this way, and then cuts it off and planes it neatly. It is, however, better to work as directed, only be sure to bore holes carefully for the nails, so as never to split the wood.
No very special directions are needed about putting on the bottom. Leave all round an exactly even border of a quarter of an inch, and after it is nailed, you may neatly round off all its edges, to give it a finished appearance.
The cover is, of course, to be attached by a pair of small hinges. Brass hinges are the neatest, and when you buy them, ask for screws to match. The hinges may be three-quarters of an inch long, and they will be, when shut, about half an inch wide, which is the size you need. Lay them (shut up) upon the edge of the back, about two inches from the ends, and with a hard pencil cut to a fine point, or with the point of your bradawl, make a mark at each end, as if you were measuring the length of the hinges onthe edge of the box. Between these marks you have to cut out pieces like Fig. 8, which will be just the length of the hinges, and deep enough to allow them, when shut up, to fit and lie even with the top edge of the box. Open them, make holes with the bradawl, and put in the screws. If you have not a screwdriver, you can turn them with the end of an old knife; but you may as well get a small screwdriver, for if you intend to do good work, you will often use screws instead of nails. Hinges are always screwed on. Now lay the cover in place carefully, mark its position, so that you have some sort of guide-line to direct you, and then by laying the cover flat on the bench, and standing the (open) box on its side, you can screw on the hinges upon the cover. Round all the edges of the cover as you did the bottom, but keep the edges of theboxsquare andsharp; and so you have now a really well-made little tool-chest. A little brass hook and eye will do to fasten it, for a lock is rather difficult for a small boy to put on.
Fig. 8.
Fig. 8.
The method of constructing a simple box has been given in the first chapter, because so many other articles are made upon exactly similar principles. The rules laid down comprise two or three essential points, the neglect of which render the ordinary carpentry of boys so essentially bad. Foremost of these isthe use of the square. There is no tool of more general use in the hands of workmen in wood and metal, and yet, generally speaking, either none at all, or a very faulty one is added to the collection of tools ordinarily supplied to boys. In the next place, I have insisted uponaccuracy in measurement. The carpenter’s rule is not at all difficult for a young boy to understand; but even if he is not in possession of such at his first attempts, he should always be induced to work by measure of some kind. This causes him of necessity to exercise his mind as well as his hands, and teaches him to consider well at starting as to what he must allow for thickness of wood, the difference betweeninside and outside measurement, and so forth; all this will greatly conduce to his success, and consequently satisfaction in his work, and will lessen the chances of his beginning a number of articles and casting them aside unfinished—a propensity too common in all boys.
I shall now resume my directions in the first person, which I think is the more easy method both for master and pupil. The next specimen I propose, because it requires even more care than a box, but is at the same time perfectly within a boy’s powers, is a birdcage. Of these there are such a number of varieties that it is difficult to settle upon the best kind to begin upon. I think, however, a wire cage will on the whole be the easiest to construct, only you must take great care in boring holes in the thin strips of wood, and, indeed, if you can get a birdcage-maker’s awl besides the one you have, it will save both time and trouble. It is not made round with a flat end, but is three-cornered with a sharp point, so that it has three edges, and when it is carefully used and twirled round and round by the fingers in making holes, it will hardly ever split even very thin strips and pieces of wood. However, if you cannot get one never mind, you must use the common bradawl according to directions here given.
I shall suppose you now in possession of a carpenter’s rule, and that you have carefully learned all I told you of the inches and eighths, so that you may be able to measureand mark your work very truly. The front of the cage is represented in Fig. 9, before the projecting roof-boards have been put on.
Fig. 9.
Fig. 9.
Here you see two upright strips at the corners, which shall be 8 inches long. These are 12 inches apart,outsidemeasure. They are ⅜ (three-eighths) of an inch square, and you must get them ready planed from the carpenter. There will be four of them required, as they are at the four corners of the cage; so that, as they are each 8 inches long, you can get a strip 36 inches in length by three-eighths wide, and this being 4 inches more than you need, will allow for waste. At the lower part of the drawing, you see the edge of the bottom board, which projects a little all round. As theoutsideof the front pillars are 12 inchesapart, this board may be 13 inches long, which will allow a border of ½ an inch (half an inch), and it may be 8 inches wide. It need not bethickerthan a quarter of an inch. A little above this board (say half an inch) is another board from one pillar to another, which is to be 1¼ inches wide and three-eighths of an inch thick. As the pillars are also three-eighths thick, and their outside edges 12 inches apart, you must take 6/8 (six-eighths) of an inch from 12 inches to find the length of this board.
If you look at the divisions upon your rule, you will see that six-eighths of an inch amounts to exactly ¾ (three quarters), so that your board must be 11 inches andonequarter long. This will also be the length of the board at the top where it falls between the pillars, and this too must be three-eighths thick.
I shall now show you how to mark and cut this top piece into the shape here sketched. Cut the board first of all into an oblong, and mind that you mark it by your square, so that theends shall be square to the sides. Let it be 2½ inches wide. Here it is (Fig. 10). Measure a length of 6 inches from either end to the middle at A, and make a mark at that place. Draw a line, C B, one inch from the opposite side, the whole length of the board, and mind you draw it correctly. You should measure an inch at B, and at C, and then draw a line from one point to the other along the edge of your rule. You mustnow draw two lines from the spot you marked at A to the ends of this line (where you see the dotted lines). In order to cut this piece, you must begin at A, not at B or C, or else if the saw should stick you will be sure to split off a strip right across the piece; but if it should stick when you are cuttingfromA, you will only split off a bit of one of the three-cornered outside pieces, which would not signify at all.
Fig. 10.
Fig. 10.
When you are sawing, be sure, as I told you before, not to cut into the line you have marked, but saw just outside it, so that the lines will be left upon the two sloping sides of the board. You maycut as close to it as you can, but you must not destroy it, and then you can with your knife neatly shave off the rough edges which the saw has made, until you have pared the wood quite neatly all along the line. If you cut this line out, you will no longer have any guide to work by. Cutting out guide lines is a very common fault, not confined to small boys or big ones. You will find it easy to pare this sloping side if you begin towork from A downwards to B and C, but you cannot cut it in the other direction. A carpenter would, of course, run his plane down the slope, and so will you by and by; but planing is difficult, and it is better you should wait for a time before you buy a plane; for, remember, those foolish little things in boys’ tool-boxes are no use at all.
You had better now prepare the holes into which the wires are to be put as you see in the drawing. You can use either iron wire or brass, but the first is cheapest. These will have to be a quarter of an inch apart. Both the top and bottom strips, you will remember, are 11¼ (eleven and a quarter) inches long. Now, 11 inches will be 44 quarters, and one more will be 45; but as the first hole must be a quarter of an inch from the ends, you will find that 44 holes will be required. Look at your rule and count this. You must mark all these by little dots with a pencil on one piece, and then laying the other upon it, mark the rest exactly even with the first. Do this with great care, or the wires will not stand upright when the cage is finished. The space between the top and bottom pieces will be 5¼ inches, so that if you allow the wires to enter a quarter of an inch at the top and bottom, you will want 44 wires 5¾ inches in length—you may say, 6 inches. You can have them all cut and straightened for you, but if you have a pair of pliers with cutting edges, you can do it yourself, and it is almost necessary you should get a pair, or borrowthem, if you intend to construct wire birdcages. You will want a few less in each side of this cage, as it will not be there so wide as it is in front. We shall presently see how many it will require.
You may put together the front of the cage at once and set it aside, or proceed to cut out the rest of it. Generally speaking, it is the best plan to cut out and prepare all the main parts of your work before proceeding to fix them in their respective places; but the front of such a cage as I am describing, being complete in itself, you may do as you like about it. We will begin with the wires. Insert the ends one after the other in a row in one of the pieces, laying it upon the bench, or fixing it on its edge in a vice, but taking care not to bend them. When one piece is thus stuck full of wires, lay it flat on its side, and put the other piece in its place, and one by one insert into it the other ends of the wires. A pair of pliers will help you greatly in doing this. I daresay the two pieces of wood will not be very parallel, but will be closer at one end than at the other. This does not matter, because you will set it right in nailing on the upright strips or corner pillars. This, therefore, is the next thing you must do; and you must have two brads top and bottom, each an inch long, but as fine as you can get. Nail to the top board first, and then place the other in position half an inch from the bottom of the pillars. If you have no carpenter’s vice,you had better work with the front of the cage laid down flat and near the right hand edge of the bench or table, so that the pillar almost overlaps it. In this position, you can bore the two holes and nail it together; but be guarded as to splitting the pillars.
You ought now to have the front well and firmly put together and standing square and true as in the sketch; only the bottom board, of which you see the front edge, is not to be attended to at present.
Fig. 11.
Fig. 11.
There is another way of going to work, namely, to put the whole framework of the cage together and add the wires afterwards. In this case (the holes having all been made beforehand as directed here) the wires are in turn inserted at the top, and then being slightly bent are put in place in the bottom piece—each wire being completelyfixed before the next is added. Either way may be tried, but in that given above the wires are not bent at all, and therefore have not to be straightened. Adding them, however, afterwards is the common practice among the cage-makers. Indeed, it generally happens in large establishments that one set of workmen make the woodwork, and another set add the wires—such division of labour proving more advantageous.
Fig. 12.
Fig. 12.
Attention is now to be given to the sides, of which Fig. 11 is a drawing. Here you need not make any corner pillars. You have only to cut out the top and bottom strips—the lower one, 1¾ inch wide, to match that in front: the top, 1 inch wide, to match the straight part of the ends of the upper front piece or gable, as you see in Fig. 12.You will also see by this drawing that you must nail the side piecesinsidethe corner pillars, andnot uponthem, so that the nails go in from the front of the cage into the ends of the two side pieces which carry the wires. I have shown by dots (Fig. 12) where the nail holes are, and they must be carefully made, avoiding the places where the other two nails come, which you hammered in when you fitted together the front. The side strips, A B (Fig. 11), may be 8 inches long. Both sides of the cage are to be made exactly alike. I have told you to make the lower side-rails 1¾ inch wide, because they must come to the bottom of the pillars, for no half-inch space is required at the sides between these rails and the bottom of the cage. It is so left in the front, because a tray, or cleaning-board, has to be slid in there. You had certainly better put together the side pieces by means of the wires, as in Fig. 11, before you nail them in their places.
You now require a piece of board for the back, and quarter-inch stuff will do very well. Bought cages are made of much thinner wood, generally mahogany, but at first it will be easier for you to use thicker boards. If you round off the edges, they will not appear so thick. Very thin deal will warp or bend after it is made up; and, indeed, it is quite possible the back of this cage will do so. Get the wood, however, as dry as you can, and the top boards, when nailed on, will probably prevent it.
To cut out this back board, you may lay down upon the piece from which it is to be cut the whole front of the cage, and draw a pencil round it, only, when you come to the bottom of the side pillars, you must draw a line straight across from one to the other. Then cutfromthe point at the top, as you did before. Let the grain of the wood run up and down,not across, the back. Nail the back thus cut to the side strips, as you nailed on the front, and you will then only have the roof to put on, and the bottom.
This roof may consist simply of a thin board, cut square and true, nailed on to the two gables, and it will look much prettier if it is made to project beyond the front. If you measure down the slope of the front or back top-piece, you will find it 6 inches long, and a little more. Your board should therefore be 7 or 8 inches wide, because, although the roof pieces meet at the top, they should come down a little beyond the sides of the cage. As the sides are 8 inches wide, cut the top 11 inches long, which will allow it to project in front 3 inches.
If you look at the cage at the end of these directions, you will understand this. You must slope, orbeveloff, the top edges of these roof boards, to make them fit neatly together along the ridge; and as you will paint the cage, you can glue on a narrow strip of paper, to make it quite water-tight. The door of these cages is generally in the back. You merely mark and cut out a square hole about3 inches square. You then fit a piece in, and hinge it either with wire, or (which is easier) by sticking on a strip of calico down the edge of it, and fasten with a wire hook. As the back is but a quarter of an inch thick, you will be able to cut out the hole (before nailing on the back), with a sharp pocket-knife; and again I say, don’t cut out the guide-lines—cut inside them, and then neatly pare exactly up to them. Make the bottom 13 inches long, and 10 wide, which will allow it to project in front, and also half an inch on each side.