The Tincal Trade of Asia.

Sir W. Palliser. Obituary and summary of his inventions.

The Tides. Influence of the tides upon the history of the earth.

Drilling Glass.

* * * * *




MACHINE TOOLS FOR BOILER-MAKERS.


We give this week an engraving of a radial drilling machine designed
especially for the use of boiler-makers, this machine, together with the
plate bending rolls, forming portion of a plant constructed for Messrs.
Beesley and Sons, boiler makers, of Barrow-in-Furness.

[Illustration: IMPROVED BOILER PLATERADIAL DRILL.]

This radial drill, which is a tool of substantial proportions, is
adapted not only for ordinary drilling work, but also for turning the
ends of boiler shells, for cutting out of flue holes tube boring, etc.
As will be seen from our engraving, the pillar which supports the radial
arm is mounted on a massive baseplate, which also carries a circular
table 6 ft. in diameter, this table having a worm-wheel cast on it
as shown. This table is driven by a worm gearing into the wheel just