Our readers will recollect an illustrated description of an universal
wood-working machine, published on page 79, Vol. XIII. of the
SCIENTIFIC AMERICAN. The machine herewith illustrated is manufactured
by the same firm, and is a valuable addition to the many excellent
wood-working machines now in use. A boring machine, though one of the
simplest, is by no means an unimportant adjunct to a full outfit of
wood-working machines. The one shown in our engraving is one of the
most complete ever brought to our notice, and the great variety of
work it is capable of performing, renders the name chosen for it
peculiarly applicable. It is called the "Universal Boring Machine"
because the most prominent feature of its construction is its power to
bore a hole in any desired angle with the axis of the bit.
Any sized bit required is inserted into the chuck, which is adjustable
to fit large and small shanks. The mandrel which carries the chuck is
made to traverse by a foot lever, so as to bore any depth up to twelve
inches. The mandrel is driven by belt from a cone pulley of three
faces, which gives the proper speeds for different sized bits.
Slots and stops upon the table enable the work to be set at any
desired angle on the horizontal plane, while the table can be set on
an incline to any angle not exceeding forty-five degrees. The table
is twenty-one inches wide, with fifteen inches slide, and it can be
raised or lowered fifteen inches.
The countershaft rests in self-adjusting boxes, and has a tight and
a loose pulley eight inches in diameter. The traversing mandrel is of
the best quality of steel, and the machine is otherwise made of iron
in a substantial manner.
[Illustration: McBETH, BENTEL, & MARGEDANT'S UNIVERSAL BORING
MACHINE.]
The several adjustments enable the operator to do all kinds of light
and heavy boring, with ease and with great rapidity.
This machine was awarded the first premium at the Cincinnati
Industrial Exposition, in October, 1870, and was patented through the
Scientific American Patent Agency, Aug. 16, 1870. It is manufactured
by McBeth, Bentel and Margedant, of Hamilton, Ohio, whom address for
machines rights to manufacture, or other information.
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