Joints Used In The Construction Of Partitions. In fig. 333 we illustrate the various forms of joints used for this purpose; a, b, and c illustrate one method of joining the foot of " post" a, with the cill b; c a plan of same showing the "mortice" d, into which the "tenon" e, is passed; f, g, and h illustrate another method in which a " double tenon " is used, f being elevation of post, g " cill," h part plan. In i and j the elevation and section of a third method is shown, this being what is called a "foxtail" tenon and mortice; k the mortice made with " dovetail" sides; I the tenon, in the under side of which the two smaller wedges m are driven. When the post is driven home, these wedges m force out the sides of the tenon I, and make it fill up the space of the mortice k. In n, o shows a mortice of another form, the tenon at foot of post being made to fit into this. Tenons are sometimes made in the form of a cross, the arms of which are at right angles to each other; at p, q, and r, we illustrate a method of joining the foot of a brace or strut s to the cill t, by a tenon w partly cut at the foot of s, which goes into the mortice v, plan in r; w and x show methods of joining the fitting-in pieces or studs in the brace or strut s, the feet and heads of the fitting-in pieces being jointed to the "cill" and the "head" of the partition by the method shown in a, b, and c, fig. 333, at e and d ; y and z, same figure, illustrate a method of joining the head a of a door opening to the posts, by the sloping shoulder; a tenon a" may be cut on this and let into a mortice - shown by the dark part in b' - cut in the face of the post; c and d, fig. 333, show other methods of joining the heads of door openings to the posts.

28 Joints Used In The Construction Of Partitions 152

Fig. 333.

28 Joints Used In The Construction Of Partitions 153

Fig. 334.

28 Joints Used In The Construction Of Partitions 15428 Joints Used In The Construction Of Partitions 155

Fig. 335.