e chamfer. Midway between the cross gain (3)
and the lower end of the leg is a gain (4) in the edge, at right angles
to the cross gain (3).

THE LEGS.--Now prepare two legs (D) for the tail end of the frame, each
32 inches long, with a chamfer (5) at one end, and provided with four
bolt holes. At the lower end bore a bolt hole for the cross base piece.
This piece (E) is 4" x 4", 21 inches long, and has a bolt hole at each
end and one near the middle. The next piece (F) is 2" x 4", 14-1/2
inches long, provided with a rebate (6) at each end, to fit the cross
gains (4) of the legs (C). Near the middle is a journal block (7).

[Illustration: _Fig. 241. Frame details._]

CENTERING BLOCKS.--Next provide a 4" x 4" piece (G), 40 inches long,
through which bore a 3/4-inch hole (8), 2 inches from the upper end,
and four bolt holes at right angles to the shaft hole (8). Then, with a
saw split down this bearing, as shown at 9, to a point 4 inches from the
end. Ten inches below the upper end prepare two cross gains (10), each
an inch deep and four inches wide. In these gains are placed the top
rails (A), so the bolt holes in the gains (10) will coincide with the
bolt holes (11) in the piece A. Below the gains (10) this post has a
journal block (12), intended to be in line with the journal block (7) of
the piece F.

[Illustration: _Fig. 242. Tail Stock._]

Then make a block (H) 2" x 4", and 6 inches long. This also must have a
shaft hole (B), and a saw kerf (14), similar to the arrangement on the
upper end of the post (G); also bore four bolt holes, as shown. This
block rests between the upper ends of the lugs (C).

Another block (I), 2" x 4", and 6 feet long, with four bolt holes, will
be required for the tail end of the frame, to keep the rails (A) two
inches apart at that end.

THE TAIL STOCK.--This part of the structure is made of the following
described material:

Procure a scantling (J), planed, 4" x 4", 24 inches long, the upper end
of which is to be provided with four bolt holes, and a centering hole
(15). At the lower end of the piece is a slot (16) 8 inches long and
1-1/2 inches wide, and there are also two bolt holes bored transversely
through the piece to receive bolts for reinforcing the end.

A pair of cheekpieces (K), 2" x 4", and each 12 inches long, are mitered
at the ends, and each has four bolt holes by means of which the ends may
be bolted to the upright (J).

Then a step wedge (L) is made of 1-3/8" x