ter in its
appearance. It is often used to connect a movable table leg to the
framing, where it is necessary for the table leg and rail to swing
outwards and support a drop leaf. The pivot is formed by a piece of
1/8-in. or 1/4-in. round iron rod running through the centre of the
joint.

[Illustration: Fig. 248.--Clearing the Architrave Mould.]

OPEN JOINT HINGEING.--The next three illustrations apply more
particularly to the hanging of the ordinary household door.

Fig. 247 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 the
door and the doorpost. This open space varies according to the position
in which the butt hinge is fixed. A section is shown at which the pin of
the hinge is let in level with the face of the door. This will allow the
door to open as shown by the dotted line, and it will not clear the
architrave moulding.

[Illustration: Fig. 249.--Close Joint Hingeing.]

Fig. 248 indicates the position of the hinge fixed so as to allow the
door to open and lay flat back to the architrave moulding. In this
instance the butts are made with wider wings, and they are generally
provided to take three screws (see Fig. 233, right-hand wing of hinge).

To determine the position of the centre pin of the hinge the following
rule is observed. The centre of the pivot pin of the hinge must be _half
the distance_ between the face of the door, when closed, and the outside
of the architrave moulding.

CLOSE JOINT HANGING.--The method known as "close joint hanging" ensures
the joint at the hanging stile being in close proximity to the hanging
rail; this is shown at Fig. 249. The first member of the architrave
moulding is generally a bead of the same diameter as the knuckle of the
hinge. The butt hinge is let in as shown in the illustration, and the
door when opened forms a close-fitting joint.

[Illustration: Fig. 250.--Rule Joint Hinge, with Leaf Open.]

THE RULE JOINT HINGE is used to connect the top and the drop leaf of a
table in cases where continuity of design is desired, so that the edge of
the top and the leaf will show an ovolo moulding when the table is either
open or closed. To the inexperienced worker it presents several
difficulties and, if it is a first effort, it is advisable to try out a
sample joint on a couple of odd pieces of timber.

Fig. 250 illustrates the joint when the leaf is opened or in a horizontal
position. A