IMPROVEMENTS IN APPARATUS FOR DRILLING WOOD, STONE, IRON, OR OTHER MATERIALS
Year: 1863

page_text: LETTERS PATENT to Edward Thomas Hughes, of the Firm of Hughes
and Son, Patent Agents, 123, Chancery Lane, London, for the Inven-
tion of "IMPROVEMENTS IN APPARATUS FOR DRILLING WOOD, STONE, IRON,
OR OTHER MATERIALS."-A communication from abroad by Joseph Julien
Chenal, of Maillat (Ain), France.
PROVISIONAL SPECIFICATION left by the said Edward Thomas Hughes
at the Office of the Commissioners of Patents, with his Petition, on the
11th February 1863.
I, EDWARD THOMAS HUGHES, of the Firm of Hughes and Son, Patent
Agents, 123, Chancery Lane, London, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN APPARATUS FOR DRILLING WOOD, STONE,
IRON, OR OTHER MATERIALS," a communication to me from abroad by Joseph
Julien Chenal, of Maillat (Ain), France, to be as follows:-
This Invention relates particularly to the instrument known as a brace,
and the improvements consist in providing it with a pin or turnscrew, so that
when the drill is fixed into the socket of the brace the small pin or turnscrew
is screwed in through the side of the socket till it catches the head of the drill,
and consequently prevents it falling out, which is a great advantage.
The said sockets are made of various forms to suit the drills to be used, and

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Edward Thomas Hughes in the Great Seal Patent Office
on the 11th August 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
THOMAS HUGHES, of the Firm of Hughes and Son, Patent Agents, 123,
Chancery Lane, London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of February, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Edward Thomas Hughes, Her special licence, that I, the said Edward
Thomas Hughes, my executors, administrators, and assigns, or such others as
I, the said Edward Thomas Hughes, 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 "Iм-
PROVEMENTS IN APPARATUS FOR DRILLING WOOD, STONE, IRON, OR OTHER MATERIALS,"
a communication to me from abroad by Joseph Julien Chenal, of Maillat
(Ain), France, upon the condition (amongst others) that I, the said Edward
Thomas Hughes, 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 Edward Thomas Hughes, do hereby
declare the nature of the said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement, that is to say:-
This Invention relates particularly to the instrument known as a brace, used
by joiners, mechanics, and other operatives, and the improvements consist in
attaching to it a spring by means of a small screw, the said spring is slightly
hollowed at one of its ends to receive a pin having a hollowed part to allow the

page_text: passage of the bit or drill, which pin by means of the spring is forced through
the socket of the brace, so that it may enter the groove cut in the head of the
bit or drill, in order to secure the said bit or drill in the socket and prevent
its falling out, which is a great advantage as well as a saving of time; and
when the bits or drills have to be removed or replaced, the hollow part of the
pin is made to correspond with the hole in the socket.
The sockets can be made of various forms, and either bored or slotted
internally to gauges, so that any kind of bit or drill corresponding with its
intended socket may enter it easily.
The practical construction and application of the said Invention will be.
clearly understood by referring to the figures and letters on the accompanying
Sheet of Drawings, in which Fig. 1 is a longitudinal elevation of the improved
brace, Fig. 2 a longitudinal section, and Figs. 3 and 4 transverse sections of
its socket.
a represents the socket of the brace; 6, the bit or drill; c, the spring; d, the
small screw by which it is attached to the brace; and e, the pin for holding
the bit or drill firmly in the socket, the said pin being hollowed out, as at
f, for allowing the ingress and egress of the bit or drill. When the bit or drill
is to be placed in the socket the head of the pin is pressed inwards until
it beds against the side of the socket, the part f which is hollowed out will
then correspond with the conical shape of the interior of the socket and
allow the entry of the bit or drill; as shewn in Fig. 4, and when the pressure
is removed the spring c forces the pin forwards through the sides of the
socket, and the plain part 9 of the pin enters the notch or groove cut in
the head of the bit or drill, and the head of the spring beds against the side of
the socket, as shewn in Fig. 3, so that the pin is prevented from travelling
further through the socket, and the bit or drill is securely held in the desired
position.
When the bit or drill is required to be taken out, the head of the
pin is pressed inwards until it beds against the side of the socket, as before
mentioned.
Having now described the nature and particulars of the said Invention,
and the manner in which the same is to be performed, as communicated to
me by my foreign correspondent, I desire it to be understood that I do not
claim the brace as my Invention, neither do I confine myself to the form of
the socket as shewn in the accompanying Sheet of Drawings, for it may be con-
structed of any desired size or shape; but what I claim is the application of
the improved spring to the brace, together with the pin passing through
its socket, for the purpose of changing the bits or drills with great facility

page_text: .and preventing them from falling out when placed in the socket of the
:brace.
In witness whereof, I, the said Edward Thomas Hughes, have hereunto
set my hand and seal, this Eighth day of August, in the year of our
Lord One thousand 'eight hundred and sixty-three.
E. T. HUGHES. (LS.)