A CEN- TRIPETAL FLANGE
Year: 1853

page_text: LETTERS PATENT to Bernard Boyle, of No. 2, Raven Row, Mile
End, in the County of Middlesex, for the Invention of "A CEN-
TRIPETAL FLANGE."
Sealed the 22nd September 1853, and dated the 23rd March 1853.
PROVISIONAL SPECIFICATION left by the said Bernard Boyle, at the
Office of the Commissioners of Patents, with his Petition, on the
23rd March 1853.
I, BERNARD BOYLE, of No. 2, Raven Row, Mile End, in the County
of Middlesex, do hereby declare the nature of the said Invention for
"A CENTRIPETAL FLANGE" to be as follows:-
No. 1, is a section of any railroad track (the rail).
No. 2, is a section of any railroad carriage wheel, with the ordinary
flange, to which
No. 3, the Invention, may be applied. It consists of the addition to
the present flange of a smaller flange or rim of the same, or other
material as the wheel. I recommend brass for many reasons, and

page_text: believe the vertical, as drawn, would be the best for the wheel and
flange at present in use; but my design includes a different width and
depth of wheel and flange, and all angular deviations from the per-
pendicular. It may be called the "centripetal flange," and its use is,
that trains may run at any rate of speed with, I believe, a certainty of
safety from running off the track. It is, in fact, the ring that marries
speed with safety.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Bernard Boyle, in the Great Seal Patent Office,
on the 22nd September 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
BERNARD BOYLE, of No. 2, Raven Row, Mile End, in the County of
Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-third day of March, in the
year of our Lord One thousand eight hundred and fifty-three, in the
sixteenth year of Her reign, did, for Herself, Ier heirs and successors,
give and grant unto me, the said Bernard Boyle, Her special licence
that I, the said Bernard Boyle, my executors, administrators, and assigns,
or such others as I, the said Bernard Boyle, my executors, adminis-
trators, 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 "A CENTRIPETAL FLANGE,"
upon the condition (amongst others) that 1, the said Bernard Boyle,

page_text: by an instrument in writing under my hand and seal, should particu-
larly 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 Bernard Boyle, 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, reference being had to the drawings
hereto annexed, that is to say:
No. 1, is a section of any railroad track (the rail).
No. 2, is a section of any railroad carriage wheel, with the ordinary
flange, to which
No. 3, the Invention, may be applied; it consists of the addition to
the present flange of a smaller flange or rim of the same or other
material as the wheel. I recommend brass (gun metal), if added to old
wheels, (see drawing B,) and believe the vertical, as drawn, would be
the best for the wheel and flange at present in use; but my design
includes a different width and depth of wheel and flange, and all
angular deviations from the perpendicular. It may be called "the
centripetal flange," and its use is, that trains may run at any rate of
speed with, I believe, a certainty of safety from running off' the track.
It is, in fact, the ring that marries speed with safety.
In witness whereof, I, the said Bernard Boyle, have hereunto
set my hand and seal, this Twenty-second day of September, in
the year of our Lord One thousand eight hundred and fifty-
three.
BERNARD BOYLE. (L.S.)