when starting to
drive the metal through the hole. The disk will come out pan
shaped, C, and it is only necessary to remove the bottom of the
pan to have a band which will leave a hole 5/8 in. in diameter and
1-1/4 in. wide. Place the band, D, Fig. 2, on a stick so that the
edges can be filed and rounded to shape. Finish with fine emery
cloth and polish. Brass rings can be plated when finished.
--Contributed by H. W. Hankin, Troy, N. Y.

** How to Bind Magazines [40]

A great many readers of Popular Mechanics Magazine save their
copies and have them bound in book form and some keep them without
binding. The bound volumes make an attractive library and will
always be valuable works of reference along mechanical lines. I
bind my magazines at home evenings, with good results. Six issues
make a well proportioned book, which gives two bound volumes each
year.

The covers of the magazines are removed, the wire binders pulled
out with a pair of pliers and the advertising pages removed from
both sides, after which it will be found that the remainder is in
sections, each section containing four double leaves or sixteen
pages. These sections are each removed in turn from the others,
using a pocket knife to separate them if they stick, and each
section is placed as they were in the magazine upon each preceding
one until all six numbers have been prepared. If started with the
January or the July issue, the pages will be numbered
consecutively through the entire pages of the six issues.

The sections are then prepared for sewing. They are evened up on
the edges by jarring on a flat surface. They are then placed
between two pieces of board and all clamped in a vise. Five cuts,
1/8 in. deep, are made with a saw across the back of the sections,
as shown in Fig. 1. Heavy plain paper is used for the flyleaves.
The paper is cut double the same as the leaves comprising the
sections, making either one or two double sections for each side
as desired.

A frame for sewing will have to be made as shown in Fig. 2 before
the work can be continued on the book. The frame is easily made of
four pieces of wood. The bottom piece A should be a little larger
than the book. The two upright pieces B are nailed to the outside
edge, and a third piece, C, is nailed across the top. Small nails
are driven part way into the base C to correspond to the saw cuts
in the sections. A piece of soft fiber string is stretched from
each nail to the crosspi