AN IMPROVED MODE OF SHAFTING PICKS, AXES, ADZES, AND. TOOLS OF A SIMILAR CHARACTED
Year: 1870

page_text: LETTERS PATENT to William Tarleton. Bury, of. Regent Works, .
Sheffield, in the County of York, Steel Manufacturer, for the
Invention of "AN IMPROVED MODE OF SHAFTING PICKS, AXES, ADZES, AND.
TOOLS OF A SIMILAR CHARACTED "
Sealed the 17th January 1871 and dated the 6th August 1870...
PROVISIONAL SPECIFICATION left by the said William Tarleton Bury-
at the Office of the Commissioners of Patents, with his Petition,..
on the 6th August 1870.
I, WILLIAM TARLETON BURY, of Regent Works, Sheffield, in the-
County of York, Steel Manufacturer, do hereby declare the nature of the .
said Invention for "AN IMPROVED MODE OF SHAFTING PICKS, AXES, ADZES, AND.
TOOLS OF A SIMILAR CHARACTER," to be as follows:- -
This Invention has for its object an improved mode of shafting picks
and tools of a similar character, whereby the blade can with ease be
effectually attached to and detached from the shaft. For this purpose
the hole of the pick or other blade is formed of an oval shape, and made

page_text: to taper or decrease in size from the top. The end of the shaft on to
which the blade is to be fitted is provided with a hoop or ferrule made
with a taper exactly corresponding to that of the eye or hole of the
blade, so that when the shaft is once inserted into the blade and driven
home, the blade, the ferrule, and the shaft wedge themselves firmly
together.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Tarleton Bury in the Great Seal Patent
Office on the 6th February 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
TARLETON BURY, of Regent Works, Sheffield, in the County of York,
Steel Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria by Her
Letters Patent, bearing date the Sixth day of August, in the year
of our Lord, One thousand eight hundred and seventy in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said William Tarleton Bury, Her special
licence that I, the said William Tarleton Bury, my executors, admi-
nistrators, and assigns, or such others as I, the said William Tarleton
Bury, my exccutors, 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 "AN
IMPROVED MODE OF SHAFTING PICKS, AXES, ADZES, AND TOOLS OF A SIMILAR
CHARACTER," upon the condition (amongst others) that I, the said William
Tarleton Bury, 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 imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Tarleton Bury, do hereby
declare the nature of the said Invention, and in what manner the same

page_text: is to be performed, to be particularly described and ascertained in and by
the following statement thereof, reference being had to the accompanying
Sheet of Drawing, and to the figures and letters marked thereon, that
is to say :-
This Invention has for its object an improved mode of shafting picks `
and tools of a similar character whereby the blade can with ease be
effectually attached to and detached from the shaft. For this purpose
the hole of the pick or other blade is formed of an oval shape, and made
to taper or decrease in size from the top. The end of the shaft on to
which the blade is to be fitted is provided with a hoop or ferrule made
with an outside taper exactly corresponding to that of the eye or hole of
the blade, and may or may not be rivetted on the shaft, so that when
the shaft with the ferrule upon it is once inserted into the eye of the
blade and driven home, the blade, the ferrule, and the shaft wedge
themselves firmly together.
On the accompanying Drawing is shown my before described improved
mode of shafting as applied to picks.
Figure 1 shows a front view of the pick; Figure 2 shows a longitudinal
section through the top of the shaft and pick blade; Figure 3 shews a
plan of the pick blade detached; and Figure 4 shows a sectional plan of
the top of the shaft and the ferrule.
On the oval-shaped head of the shaft A is fitted (either by rivets or
without) the ferrule B, and the blade C is made with an eye c, having a
taper corresponding with the external taper of the ferrule B, so that
when the three parts are fitted together and the blade is secured by
striking the head of the shaft on the ground, the combined action of the
taper of the shaft and that of the ferrule will cause the three parts to be
firmly wedged together. The furrule B may either be formed entirely
solid or with a split down the side, or it may be elongated down the
shaft so as to strengthen it as indicated at Figure 5. It will be evident
that the same arrangement of shaft A, ferrule B, and eye c, of the blade
is equally applicable to axes, adzes, and tools of a similar character.
Having thus described the nature of my Invention, and in what
manner the same is to be performed, what I claim as the Invention
secured to me under the herein-before in part recited Letters Patent is,
constructing picks, axes, adzes, and tools of a similar character with a
tapering ferrule operating in combination with the tapered head of the

page_text: shaft and eye of the blade, substantially as and for the purposes herein-
before set forth.
In witness whereof, I, the said William Tarleton Bury, have here-
unto set my hand and seal, this Fourth day of February, in the
year of our Lord One thousand eight hundred and seventy-one.
WILLIAM TARLETON BURY. (L.S.)