an Invention for
Year: 1854

page_text: COMPLETE SPECIFICATION filed by William Beare Caulfield at the
Office of the Commissioners of Patents, with his Petition and Declara-
tion, on the 27th July 1854, pursuant to the 9th Section of the Patent
Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
BEARE CAULFIELD, of 54, Cole Harbour, Blackwall, in the County of Middlesex,
Steam Boat Owner, send greeting.
WHEREAS I, the said William Beare Caulfield, have petitioned Her
Majesty to grant unto me, my executors, administrators, and assigns, Her
Royal Letters Patent for an Invention for "THE MANUFACTURE OF BRUSHES,
TO BE USED IN CLEANING THE SMALL TUBES OF STEAM BOILERS, AND FOR OTHER
PURPOSES:"
NOW KNOW YE, that I, the said William Beare Caulfield, 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 fol-
lowing statement, and the Drawings therein referred to (that is to say) :-
Two metal plates, circular or otherwise, of equal dimensions, and perforated
with a convenient number of corresponding holes, are fitted to receive a spindle
passing through their centres. In the holes of one plate are fixed the rods or
ribs, among which the steel wire or other material is to be interlaced in small.
bunches. In the other plate the holes are widened, so as to allow it to slide

page_text: up or down upon the ribs. The spindle is provided with a shoulder and a
screw nut, between which the material contained within the plates is power-
fully compressed and retained in its place. By relaxing the screw the material
can be removed and replenished when necessary.
The following description of the accompanying Drawings will explain further
details :-
A and B are the metal plates; c, c, c, &c. are the rods or ribs, one end of
which is rivetted or otherwise, fixed in the holes a, a, a, &c.; the other end is
received and freely traverses within the holes b, b, b, &c. The wire or other
material G, G, being cut into lengths, according to the proposed diameter of the
brush, is laid in small bunches in the spaces between the ribs c, c, c, &c., as
indicated by the dotted lines on plate A, and can be made to interlace and
radiate in any direction, so as to give a circular, square, oval, or any other
desired form to the brush, the thickness of which may also be regulated at
pleasure. The centre holes A' and B' are fitted to receive the neck F, E, of
the spindle or handle F, E, D, and the plate B may have a fixed or moveable
ferrule B² to receive the pressure of the shoulder D when the screw F is
applied.
To protect the material of the brush, in the act of cleaning, from damage,
in passing and returning through the ends of the tubes, a boss, with friction
rollers H, H, H, may be fitted on the handle, as represented by the dotted
lines; these rollers will confine the brush to a central position in the tube, or a
hollow conical guard I, as shewn in the Drawing, may be found sufficient.
Having now.described the nature of the said Invention, and in what manner
the same is to be performed, I wish it to be understood that I do not claim
of the parts herein-before described or referred to when taken separately;
but what I claim as the Invention intended to be secured by the said Letters
Patent is, a brush constructed and combined as above described.
any
In witness whereof, I, the said William Beare Caulfield, have here-
unto set my hand and seal, this Twenty-seventh day of July, in the year
of our Lord One thousand eight hundred and fifty-four.
ת
W. B. CAULFIELD