The curve, which is the same in all the axes, approaches to coincidence
with the curve described by the axe in making the stroke. A curve is, in
our opinion, desirable, in order to bring the point more nearly opposite
the centre of percussion, and to make the head more useful for holding on
to rocks or a slope.
The axe shown in diagram No. 2, though slightly heavier than No. 1, is
not of sufficient weight or strength for cutting a series of steps in
hard ice. To those gentlemen, therefore, who do not object to carrying
weight, but who desire to have an axe fit for any kind of work, we
recommend No. 3. As this is exactly similar in shape to No. 2, differing
from it only in size, we have not thought it necessary to give a separate
diagram of No. 3.
As to the mode of fastening, which is the same in all three axes, we
should have felt some diffidence in giving an opinion had we not been
fortunate enough to obtain the advice of an experienced metal-worker, by
whom we were strongly recommended to adopt the fastening shown in the
diagrams, as being the method generally considered best in the trade for
attaching the heads of hatchets, or large hammers likely to be subjected
to very violent strains. It will be seen that the axe-head and fastening
are forged in one solid piece, the fastening consisting of two strong
braces or straps of steel, which are pressed into the wood about
one-eighth of an inch, and are secured by two rivets, passed through the
wood and clenched on each side.
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