The braces are put at the side, instead
of in front of and behind the axe, because by this means, the strain
which falls on the axe acts against the whole breadth of the steel
fastenings, and not against their thickness merely.
We believe that this is the firmest method of fastening which can be
adopted, and that so long as the wood is sound, it is scarcely possible
for the head of the axe to get loose or to come off; and it has the
further advantage of strengthening the wood instead of weakening it, and
of distributing the strain produced by step-cutting over a large bearing.
It should be added that these axe-heads and fastenings ought to be made
entirely of steel.
The dimensions of the axe-heads are as follow: --
No. 1. -- Length of blade measured from the wood.. 4 1/2 inches.
Breadth of blade at widest part..........1 1/2 "
Weight, including the braces............13 1/2 oz.
No. 2. -- Length of blade measured from the wood.. 3 1/2 inches.
Length of pick.......................... 4 1/2 "
Breadth of blade at widest part......... 1 3/4 "
Breadth of pick......................... 0 1/2 "
Weight, including the braces............15 1/2 oz.
No. 3. -- Length of blade measured from the wood.. 4 inches.
Length of pick.......................... 5 "
Breadth of blade at widest part.
Pages:
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88