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This book is part of the TREDITION CLASSICS. It contains classical literature works from over two thousand years. Most of these titles have been out of print and off the bookstore shelves for decades. The book series is intended to preserve the cultural legacy and to promote the timeless works of classical literature. Readers of a TREDITION CLASSICS book support the mission to save many of the amazing works of world literature from oblivion. With this series, tredition intends to make thousands of international literature classics available in printed format again \u2013 worldwide.

Chapter 1 A SAWING TRESTLE

A strong and stable sawing trestle is one of the most important accessories of the carpenter's shop, whether amateur or professional. The saw is constantly being used, and for it to do its work accurately the material must be properly supported, so that it cannot sway or shift. Anybody who has been in the habit of using a wobbly chair or box to saw on will be surprised to find how much more easily wood can be cut when resting on a trestle like that illustrated by Figs. 1 to 3.

The top, a, of the trestle is 29 inches long, 4 inches wide, and 2 inches thick. At one end it has a deep nick, to serve much the same purpose as the notched board used in fretworking; also to hold on edge such things as doors while their edges are planed up. Pushed back against the wall the trestle is then "as good as a boy."

[Illustration: Fig I.-Leg of sawing trestle (left). Trestle seen from above (right).]

The four legs are made of 2 by 2 inch stuff. To start with, the pieces should be 24 inches long, to allow for the waste of cutting on the angle.

Cutting the Notches.-Make four marks 7 inches from the four corners of the top, set your bevel to an angle of 70 degrees (or cut an angle out of a card with the help of a protractor), and lay a leg against each mark in turn, the end projecting an inch or so above the top. Move the leg about till it makes the proper angle at the mark, and draw a pencil line down each side of the leg as close up as possible. Since the legs may vary slightly in size, use each once only for marking, and number it and the place to which it belongs.

Lines must now be drawn along the upper and under sides of the top, parallel to and 3/4-inch from the edge, to complete the marking out of the notches.

Cut just inside the side marks with a fine tenon saw, and remove the wood between the cuts back to the top and bottom marks with a broad, sharp chisel, making the surface of the cut as true and flat as you can. Then "offer" the leg that belongs to the cut, its end projecting an inch or so. If it won't enter, bevel off the sides of the cut very slightly till it will. A good driving fit is what one should aim at. While the leg is in place, draw your pencil in the angles which it makes with the top above and below, to obtain the lines AB, CD (Fig. 2, a).

Bevelling the Legs.-The marking out of the bevels will be much expedited if a template is cut out of tin or card. It should be just as wide as the legs, and at a point 4 inches from one end run off at an angle of 162 degrees from one edge. (See Fig. 2,b.)

[Illustration: FIG. 2.-Showing how to cut sloping joint for trestle leg.]

Draw with a square a line, EEl, across what is to be the inside of the leg. The template is applied to the end side of the leg and moved up till its sloping edge occupies a position in which a perpendicular dropped on to it from C is 1/2 inch long. Mark the line EF (Fig. 2, b) and the perpendicular CG. The bevel is marked on the other side of the leg, the, angle of the template being at E1 (Fig. 2, a) to guide the saw, which is passed down through the leg just outside the marks till in line with CD. The piece is detached by a cross cut along CG, CD. This procedure, which sounds very complicated, but is really very simple, and performed much more quickly than it can be described, yields a leg properly bevelled and provided with a shoulder to take the weight of the top.

[Illustration: Fig.3-End elevation of sawing trestle.]

The leg at the diagonally opposite corner is an exact replica of the one first made; the other two are similar, but the direction of the bevels is reversed, as will be evident after a little consideration.

When all the legs are ready, knock them into place, driving the shoulders tight up against the top, and nail them on. The projections are sawn off roughly and planed down flush with the top. Then affix the tie C at each end, and plane its edges off neatly.

Truing the Legs.-Stand the stool on end, top flat against the wall. Measure off a 20-inch perpendicular from the wall to the outside corner of each of the two upper legs. (Fig. 3.) Lay a straightedge from mark to mark, and draw lines across the legs. Reverse the trestle, and do the same with the legs at the other end. Then turn the trestle on its side, and draw lines on the other outside faces of the legs, using the lines already made as guides. If the operation has been carried through accurately, all eight lines will be in a plane parallel to the top. Cut off the ends of the legs below the lines, and the trestle is finished.

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Chapters
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Things To Make
1

Chapter 1 A SAWING TRESTLE

30/11/2017

2

Chapter 2 A JOINER'S BENCH.

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3

Chapter 3 A HANDY BOOKSTAND.

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Chapter 4 A HOUSE LADDER.

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Chapter 5 A DEVELOPING SINK.

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Chapter 6 A POULTRY HOUSE AND RUN.

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Chapter 7 A SHED FOR YOUR BICYCLE.

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Chapter 8 A TARGET APPARATUS FOR RIFLE SHOOTING.

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Chapter 9 CABINET-MAKING.

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Chapter 10 TELEGRAPHIC APPARATUS.

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Chapter 11 A RECIPROCATING ELECTRIC MOTOR.

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Chapter 12 AN ELECTRIC ALARM CLOCK.

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Chapter 13 A MODEL ELECTRIC RAILWAY.

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Chapter 14 A SIMPLE RECIPROCATING ENGINE.

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Chapter 15 A HORIZONTAL SLIDE-VALVE ENGINE.

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Chapter 16 MODEL STEAM TURBINES.

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Chapter 17 STEAM TOPS.

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Chapter 18 MODEL BOILERS.

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Chapter 19 QUICK BOILING KETTLES.

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Chapter 20 A HOT-AIR ENGINE.

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Chapter 21 A WATER MOTOR.

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Chapter 22 MODEL PUMPS.

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Chapter 23 KITES.

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Chapter 24 PAPER GLIDERS.

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Chapter 25 A SELF-LAUNCHING MODEL AEROPLANE.

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Chapter 26 APPARATUS FOR SIMPLE SCIENTIFIC EXPERIMENTS.

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Chapter 27 A RAIN-GAUGE.

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Chapter 28 WIND VANES WITH DIALS.

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Chapter 29 A STRENGTH-TESTING MACHINE.

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Chapter 30 LUNG-TESTING APPARATUS.

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Chapter 31 HOME-MADE HARMONOGRAPHS.

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Chapter 32 A SELF-SUPPLYING MATCHBOX.

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Chapter 33 A WOODEN WORKBOX.

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Chapter 34 WRESTLING PUPPETS.

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Chapter 35 DOUBLE BELLOWS.

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Chapter 36 A HOME-MADE PANTOGRAPH.

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Chapter 37 A SILHOUETTE DRAWING MACHINE.

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Chapter 38 A SIGNALLING LAMP.

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Chapter 39 A MINIATURE GASWORKS.

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