Loose Tongues
: THE TONGUED AND GROOVED JOINTThere are two methods of jointing with loose tongues, viz., the use of the cross tongue, , and the use of the feather tongue, . Cross tongues are the stronger when glued in their position and can be used very much thinner than feather tongues. Feather tongues are cut diagonally across the grain as illustrated.
Fig. 105.—Cradle for Planing. is a cradle for planing up loose tongues to the required width (generally 7⁄8 in.). Two grooves are made in a piece of 11⁄4 in. hardwood; one groove is used for planing the width way of the tongue and the other for planing the edge way. These tongues can be cut to accurate size on a circular saw bench if power and machinery are at hand.
More
-
Gauging
After squaring all the shoulder lines round the timber with the knife and try square, the mortise gauge should be set so as to strike the two gauge lines marked G, , at one operation. If the worker does not possess a mortise gauge the lines may be m... Gauging
is a sketch of a brass butt hinge, open. illustrates a similar hinge closed, and shows the gauge set so that the point of the marker is exactly to the centre of the pivot-pin. This distance we will call C. Now turn to . The distance C has been gau... Gauging
After squaring up the timber accurate gauging of the ends is another important point. The gauge used should be a cutting gauge, so that the line is incised about 1⁄32 in. in depth, thus effectually cutting the cross fibres of the timber.</p> <... General Rule
In practically all cases where a single tenon is used the thickness of the tenon should be one-third the thickness of the timber. This leaves the timber at each side of the mortise the same strength as the tenon.</p> <p>Mortise and tenon joints for ... Glueing
The better the glue penetrates into the pores of the wood, the stronger the joint will be; for this reason timber of the loose-fibred variety, such as pine, etc., will hold up at the joint better than hardwoods like teak and rosewood. The glue used f... Hammer Head Tenons
At is shown the method of jointing framing having semicircular or segmental heads. The left-hand diagram indicates the method of wedging the joint so as to draw up the shoulders; the right-hand view shows the tongueing of the shoulders, which is ne... Hinged Cornice Poles
shows a hinged joint for cornice poles and should be of interest to those who are frequently removing from house to house. The joint will adapt itself to fit any bay window (even a square bay) and it is formed by turning and cutting the two pieces ... Housed And Mitred Dovetail
is another form of dovetail—commonly called a housed and mitred or rebated and mitred dovetail. In this instance we see that a small portion is mitred at top and bottom edges, and when used in plinth or cornice work, or for making tea-caddies... Inserted Tenons
Where two pieces of timber run together at an acute angle it becomes necessary to use inserted tenons. Both pieces of the timber are mortised and the inserted tenons are secured into the widest piece. On the left is shown the inserted tenon, secured... Inside Hingeing
When a door is being hung <em>inside</em> the carcase (that is, not hinged <em>over</em> the ends) it is permissible, in the case of light work, to let the whole thickness of the hinge into the door; and when screwing the door to the carcase it is usu... Interlocking Chair Joint
A joint designed with a view to strengthening the construction of chairs at the point where they are weakest is shown in . The joint is an interlocking one so arranged that, once the chair is glued up, no motion of the side rail can be possible. The... Joints For Curved Work
<p> shows a circular frame made up in two thicknesses, the segments being screwed to each other and the joints crossed in two layers. This is a very strong method, and it is used for making circular frames and curbs up to 15 ft. in diameter. The seg... Joints Other Than A Right Angle
If the halving joint is at an angle similar to the sketch shown at , great care will have to be exercised in the use of the chisel, owing to the change in the direction of the grain of the wood. The arrow marks in this sketch distinctly indicate the ... Joints Other Than At 90°
The two pieces forming a bridle joint are not always at right angles, as at ; in many instances it is necessary that the joint be at other than 90 degrees. The work, however, is treated in a similar manner, with the exception that an adjustable joine... Knuckle Joint Hinge
is a similar type of joint to the above, and is called the knuckle joint. This arrangement of hingeing allows the table leg to swing in an angle of 180 degrees and is much neater in its appearance. It is often used to connect a movable table leg to ... Ladders
illustrates the method of fastening the rung (or stave) of a ladder to the side. At A the common method is shown, the stave being simply driven into the hole and wedged. At B a much better but more expensive method of construction is given. The sta... Lamination
If we apply to the dictionary for the word "lamination," we find that lamellar structure is the arrangements in thin plates or layers one over the other, usually having the end joints alternating, and it is a condition which allows of cleavage in one... Lap-dovetailing
is an example of lap-dovetailing, such as is used where a drawer side joins with the drawer front. It is not permissible to allow the end grain of the timber to show at the front of a drawer, and this is why resort is had to the lap-dovetail. As the... Long And Short Shouldered Joint
shows a haunched mortise and tenon joint having a long and short shoulder. This is a fairly common joint in framed partitions for offices, framing for greenhouses, tool sheds, etc., and is a frequent source of annoyance to the amateur. It is necess... Loose Tongues
There are two methods of jointing with loose tongues, viz., the use of the cross tongue, , and the use of the feather tongue, . Cross tongues are the stronger when glued in their position and can be used very much thinner than feather tongues. Feather... Machine-made Dovetails
As a general rule machine-made drawer and box dovetails show both the pins and the tails of exactly the same size. The reason is obvious after an inspection of , which shows the position in which the pieces are held during the machining operations. ... Making Dowels
Many, however, prefer to make what they require for the work in hand, and the following is the method that is generally employed. Pieces of straight-grained wood are wrought to a square section, after which the corners are planed away to form an oct... Miscellaneous Joints
<p>Weather boards.—For outdoor buildings, such as garages, garden sheds, toolhouses, etc., "weatherboarding" is often preferred to ordinary matchboarding, chiefly because of the facility with which it throws off the rain. The boarding can be b... Mitred And Moulded Joint
shows a type of joint largely used in light cabinet work. The method of mitreing the moulding and tenoning the stile to rail is indicated.</p> ... Mitreing
The term mitreing is generally used to denote the type of joint used at the corner of a picture frame; or where two pieces of wood are bevelled away so as to fit each other, as the skirting or plinth mould at . In these cases the timber is cut so th... Mitreing A Moulded Door Frame
illustrates the method of mitreing the moulded portion of a door frame where the joint is dowelled, not tenoned. A small wooden template is made out of beech or other hardwood, having its ends cut at 45 degrees. This template is placed on the rail,... Mortise And Tenon With Mitred Face
This is a useful method of jointing framing which has square edges as shown; and it is equally useful even if the face edges have moulds worked upon them. If the joint has square edges a rebate may be formed to accommodate a panel by fixing a bolect... Mortising Puzzle
The ordinary mortising exercise is, after the first two or three attempts, generally voted as uninteresting, but, although the simple puzzle shown in is practically an exercise in mortising, yet, forming as it does a puzzle, it becomes a fascinating... Muntin And Skirting Joint
In the case of panelled rooms it is usually necessary to scribe the muntins (or uprights) to the skirting. The method is shown in . The bead moulding of the skirting is only partly removed, as indicated, leaving a solid portion to which the muntin is... Notched Joints
is a "notched joint," where two joists, or scantlings, cross each other, the object of the joint being to prevent the joists moving from their position without materially weakening them. For an end notch, see .</p> <div> <img src="/images/f349.jpg"... Open Joint Hingeing
The next three illustrations apply more particularly to the hanging of the ordinary household door.</p> <p> is termed "open joint hanging," from the fact that when the door is open a certain amount of open space exists between the edge of ... Other Varieties
At we have an everyday method of jointing circular-fronted cabinet door frames. Great care must be taken in setting out and making, or a twisted frame will result.</p> <p>Then at are shown two familiar examples of dovetailing the bearer to the car... Outside Hingeing
illustrates the portion of a door frame and carcase end when the door is hung on the face of the carcase. The correct method of letting in the hinge is shown in the enlarged section , but, as previously mentioned, the hinge may have its entire thic... Patera Covers
In cases where the style of ornament permits of it, patera covers are used instead of pelleting. shows the jointing of shaped spandrails, etc., to carcase ends of light portable cabinet work, etc. A hole is bored about 3⁄8 in. deep into the en... Pelleting
indicates the method of pelleting and screwing the corner of a picture frame. The mitre joint is first screwed and a pellet of the same timber is made to fill the hole which has been bored to receive the screw head. The pellet is glued in position an... Pinning
shows the tenoning of the inside end of a wardrobe to the top of the carcase. This is also called pinning. The tenons should be wedged diagonally. The tenons and the distance between the tenons are more satisfactory if made equidistant, because if ... Planing
After sawing the piece to approximately the correct angle, it is necessary on high-class work to plane the cut end so as to give a perfect finish and enable a glued joint to be made. This may be accomplished by using the plane on the shooting board, ... Ploughing
When grooves have to be worked in the edge or face of a board to receive tongues, the process is generally called ploughing, and it is usually accomplished by a special tool called a plough (or, as it is occasionally spelt, "plow"). When a ...