AN IMPROVEMENT IN WOOD SCREWS
Year: 1866

page_text: LETTERS PATENT to Clinton Edgcumbe Brooman, of the Firm of
Robertson, Brooman, and Company, of 166, Fleet Street, in the City of
London, Patent Agents, for the Invention of "AN IMPROVEMENT IN
WOOD SCREWS."-A communication from abroad by Henry Titus, of New
York, United States of America.
PROVISIONAL SPECIFICATION left by the said Clinton Edgcumbe Brooman
at the Office of the Commissioners of Patents, with his Petition, on the
25th June 1866.
I, CLINTON EDGCUMBE BROOMAN, of the Firm of Robertson, Brooman, and
Company, of 166, Fleet Street, in the City of London, Patent Agents, do
hereby declare the nature of the said Invention for "AN IMPROVEMENT IN
WOOD SCREWS," to be as follows:-
This Invention of an improvement in wood screws consists in so forming
the bevelled under side of the head of the screw that it shall act as a counter-
sink, whereby the screw may be used even in hard woods without the necessity
of using a gouge or other tool to cut away around the hole, as is the present
practice.
The manner in which it is preferred to carry out this Invention is to make
from each end of the nick on the head a cut upon the under side of the form

page_text: common to the "countersink bit" used by carpenters, as this gives a ready
exit for the chips, and does not disfigure the edge of the head. A variety of
forms on the same princiule may be given to the head.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Clinton Edgcumbe Brooman in the Great Seal Patent Office
on the 22nd December 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CLINTON
EDGCUMBE BROOMAN, of the Firm of Robertson, Brooman, and Company, of
166, Fleet Street, in the City of London, Patent Agents, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of June, in the year of our Lord
One thousand eight hundred and sixty-six, in the thirtieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Clinton Edgcumbe Brooman, Her special licence that I, the said Clinton
Edgcumbe Brooman, my executors, administrators, and assigns, or such others
as I, the said Clinton Edgcumbe Brooman, 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 "AN IMPROVEMENT IN WOOD SCREWS," (communicated to me from
abroad by Henry Titus, of New York, United States of America,) upon the
condition (amongst others) that I, the said Clinton Edgcumbe Brooman, 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 Clinton Edgcumbe Brooman, 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 thereof, reference being had to the Drawing hereunto
annexed, that is to say :-
This Invention of an improvement in wood screws consists in so forming the
bevilled under side of the head of the screw that it shall act as a countersink,

page_text: whereby the screw may be used even in hard woods without the necessity of
using a gouge or other tool to cut away round the hole, as is the present
practice.
The manner in which it is preferred to carry out this Invention is to make
from each end of the nick on the head a cut upon the under side, as seen
at a in the annexed Drawing, being of the form common to the "countersink
bit" used by carpenters; this gives a ready exit for the chips, and does not
disfigure the edge of the head. A variety of forms on the same principle may,
however, be given to the head.
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim, constructing wood
screws substantially in the manner and for the purpose herein-before described
and represented in the accompanying Drawings.
In witness whereof, I, the said Clinton Edgcumbe Brooman, have here-
unto set my hand and seal, this Twenty-first day of December, One
thousand eight hundred and sixty-six.