You are here

قراءة كتاب Woodwork Joints: How they are Set Out, How Made and Where Used.

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

‏اللغة: English
Woodwork Joints: How they are Set Out, How Made and Where Used.

Woodwork Joints: How they are Set Out, How Made and Where Used.

تقييمك:
0
No votes yet
المؤلف:
دار النشر: Project Gutenberg
الصفحة رقم: 6

similar positions to Fig. 31, and has in some cases the disadvantage of showing end grain at the top of the frame. The sketch shows the two pieces separated.

Fig. 33 is "Dovetail Halving," the dovetail running through the top piece (Fig. 28, 5). This is a strong joint, used where outside strain is likely to occur in the top piece, the dovetail preventing the rail from being drawn away from the shoulder. The two pieces are shown separate.

Fig. 33.—Dovetail Halving.

Fig. 33.—Dovetail Halving.

Fig. 34.—Mitre Halving.

Fig. 34.—Mitre Halving.

At Fig. 34 is seen "Mitred Halving," a somewhat weak joint, but necessary in mirror frames, etc., where good appearance is required on the face side (Fig. 28, 6). Its use is obvious if the face of the frame be moulded with beads or other sections which require to intersect one with the other. This also applies if the frame be moulded on its face edges.

Fig. 35 is a halved joint with one side of the piece dovetailed (Fig. 28, 8). This joint is used in similar positions to Fig. 33, and rather less labour is required in the making. The two pieces are shown separate for clearness.

Fig. 36 indicates the "Halved Joint," the pieces at one end showing a double dovetail (Fig. 28, 7). This particular joint is seldom used except for Manual Training purposes. The illustration shows a sketch of the joint apart.

Fig. 37 is "Oblique Dovetail Halving," one side of the piece being dovetailed. The joint is used to prevent "racking," and as a cross brace to framing. It is occasionally made with both its sides dovetailed as shown at Fig. 33. (For reference, see Fig. 28, 9).

Fig. 35.—Halved Joint with one side Dovetailed.

Fig. 35.—Halved Joint with one side Dovetailed.

Fig. 36.—Halved Joint with Double Dovetail.

Fig. 36.—Halved Joint with Double Dovetail.

Fig. 37.—Oblique Dovetail Halving.

Fig. 37.—Oblique Dovetail Halving.

Fig. 38.—Stopped Dovetail Halving.

Fig. 38.—Stopped Dovetail Halving.

Fig. 38 shows "Stopped Dovetail Halving." In this case the dovetail is similar to Fig. 33, with the exception that it does not run through the bottom rail. This is an advantage if the bottom edge of the rail is in evidence, or if it is required to glue a moulding or hardwood facing slip on the lower edge. The glue adheres better with the grain than it would end way of the grain, and if slight shrinkage occurs across the width of the bottom rail the moulding would not be forced away by the upright (see example at Fig. 28, 10).

Fig. 39.—Cross Halving Joint.

Fig. 39.—Cross Halving Joint.

Fig. 40.—Cross Halving Joint Edgeways.

Fig. 40.—Cross Halving Joint Edgeways.

Pages