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328 BELTS.
ing the middle one. The holes x and y, where the ends of the
lacing are finally drawn through for fastening, are made by the
belt awl and should always be made small, and the lacing, if laid
out rightly, always enters these holes from the inside of the belt
;
after it is pulled through, a small cut is made in the lacing on
the outside, which will prevent it from drawing back again, then
the ends are cut off about l
/
2 " long, as shown in the figure at.r
and y. It is a bad practice to leave the lace-ends on the inside of
belts, because they will then soon wear off, allowing the joint to
rip.
A 1-inch belt ought to have three lace-holes in each end.
Length of lacing, 12 inches.
A 2-inch belt ought to have three lace-holes in each end.
Length of lacing, 18 inches.
A 3-inch belt ought to have five lace-holes in each end.
Length of lacing, 24 inches.
A 4-inch belt ought to have five lace-holes in each end.
Length of lacing, 32 inches.
A 5-inch belt ought to have seven lace-holes in each end.
Length of lacing, 40 inches.
A 6-inch belt ought to have seven lace-holes in each end.
Length of lacing, 48 inches.
An 8-inch belt ought to have nine lace-holes in each end.
Length of lacing, 60 inches.
A 10-inch belt ought to have eleven lace-holes in each end.
Length of lacing, 72 inches.
A 12-inch belt ought to have thirteen lace-holes in each end.
Length of lacing, 84 inches.
Always have the row having the most holes nearest the end
of the belt.
Cementing Belts.
When belts are cemented together, a 3-inch belt is lapped
four inches and a 4-inch belt 4>£ inches. In larger belts the lap
is usually made equal to the width of the belt, but it may be
made even shorter when the width of the belt is over 12 inches.
The two ends are jointed together, so that the thickness is even
with the rest of the belt.
The A?nerican Machi7iist, in answer to Question No. 430,
Dec. 5, 1895, says :
" For leather belts take of common glue and
American isinglass equal parts ;
place them in a glue pot and
add water sufficient to just cover the whole. Let it soak 10
hours, then bring the whole to a boiling heat, and add pure tan-
nin until the whole appears like the white of an agg. Apply
warm. Buff the grain of the leather where it is to be cemented;
rub the joint surfaces solidly together, let it dry for a few hours,
and the belt will be ready for use. For rubber belts take 16
parts gutta percha, 4 parts India rubber, 2 parts common caulk-
er’s pitch, 1 part linseed oil ; melt together and use hot. This
cement can also be used for leather."
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