This extra roll, which is used for
straightening old plates and for bending small tubes, pipes, etc., is
made of steel, and is 7 in. in diameter by 5 ft. long. It is provided
with a swing frame at one end to allow of taking-off pipes when bent,
etc., and it is altogether a very useful addition.
The machine we illustrate weighs 11 tons, and is all self-contained, the
standards being mounted on a strong bedplate, which also carries the
bearings for the shaft with fast and loose pulleys, belt gear, etc. Thus
no foundation is required.--_Engineering_.
* * * * *
MODERN ORDNANCE.
[Footnote: A paper read Feb. 8, 1882, before the Society of Arts,
London.]
By COLONEL MAITLAND.
A great change has lately been taking place throughout Europe in the
matter of armaments. Artillery knowledge has been advancing "by leaps
and bounds;" and all the chief nations are vying with each other in the
perfection of their _materiel_ of war. As a readiness to fight is the
best insurance for peace, it behooves us to see from time to time how we
stand, and the present moment is a peculiarly suitable one for taking
stock of our powers and capabilities.
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