IMPROVEMENTS IN BORING MACHINERY
Year: 1875

page_text: LETTERS PATENT to John Pyle, of Esh, in the County of Durham,
Mechanical Engineer, for the Invention of " IMPROVEMENTS IN
BORING MACHINERY."
Scaled the 26th October 1875, and dated the 5th August 1875.
PROVISIONAL SPECIFICATION left by the said John Pyle at the
Office of the Commissioners of Patents, with his Petition, on the
5th August 1875.
I, JOHN PYLE, of Esh, in the County of Durham, Mechanical
Engineer, do hereby declare the nature of the said Invention for
" IMPROVEMENTS IN BORING MACHINERY," to be as follows:--
The improvements relate to machinery to be worked by hand, and
intended more particularly for boring rock, stone, coal, mineral, and
such-like substances in confined spaces and passages where steam or
other motive power could not be conveniently introduced, and consist

page_text: in so arranging the screw serving to drive the drill and its driving gear
that when the machine is worked a slow motion may be imparted to
the drill for bard substances, and a fast motion for soft substances, and
the rendering these motions readily and easily interchangeable without
necessarily removing or resetting the main or heavy part (the pillar)
of the machine; also in the construction and use of a nut capable of
oscillating motion, and made to contain a lubricant, thro' and in which a
suitably constructed screw is made to operate and hold the drill.
The improvements may be performed by constructing the machine
proper in form of a post or pillar, having one end (conveniently the top)
made solid, and the other hollow, and furnished with an adjusting
screw working therein, so that the pillar may be lengthened or shortened
and fastened or fixed in any convenient cavity or place where it may be
intended to work the machine, either vertically or horizontally. This
pillar is furnished with a strong sliding and adjustable metal feed box
containing a cast steel or metal nut, rendered capable of oscillating
motion when desired, and filled with any suitable lubricant. Through
this lubricated nut a strong steel or metal screw, holding a drill, is made
to work, and having some sixteen threads to the inch. This screw is
fixed in connexion with and put in motion by the geared speed metal
wheels next to be described.
The speed wheels are three in number, supported in a frame and by a
guide; each wheel is furnished with a square or other shaped hole in
the centre, into which one and the same handle is made to fit. The
wheels may be respectively twelve, six, and three inches diameter, or
other convenient sizes.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifth day of August, in the year of our
Lord One thousand eight hundred and seventy-five, in the thirty-ninth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said John Pyle, Her special licence, that I, the
said John Pyle, my executors, administrators, and assigns, or such
others as I, the said John Pyle, my executors, administrators, and
assigns, should at any time agree with, and no others, from time
to time, and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN BORING MACHINERY,"
upon the condition (amongst others) that I, the said John Pyle, my
executors or administrators, by an instrument in writing under my, or
their, or one of their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the
same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
"
NOW KNOW YE, that I, the said John Pyle, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and, ascertained in and by
the following statement :—
The improvements relate to machinery to be worked by hand, and
intended more particularly for boring rock, coal, mineral, and such-like
substances in confined spaces and passages where steam or other such
motive power could not be conveniently introduced, and consist in so
arranging the screw serving to drive the drill and its driving gear that
when the machine is worked a slow motion may be imparted to the drill
for hard substances, and a fast motion for soft substances; also rendering
these motions readily and easily interchangeable without necessarily
removing or resetting any part of the machine (save the handle there-
of);
also in the construction and use of a nut capable of oscillation,
and to contain a lubricant, through and in which a suitably constructed
screw is made to operate and hold the drill; and in the general arrange-
ment of the machinery as described.

page_text: receive the screw D; G, guide rod; H, steadying bar, I, handle;
K, frame supporting speed gearing; X, Y, Z, speed gearing wheels.
In witness whereof, I, the said John Pyle, have hereunto set
my hand and seal, this Twenty-sixth day of November, in
the year of our Lord One thousand eight hundred and seventy-
five.