AN IMPROVEMENT APPLICABLE TO NAIL, SCRUBBING, AND OTHER BRUSHES
Year: 1878

page_text: LETTERS PATENT to James Bidwell and Arthur Bidwell, both of Hackney, in
the County of Middlesex, for the Invention of "AN IMPROVEMENT APPLICABLE
TO NAIL, SCRUBBING, AND OTHER BRUSHES.”
Sealed the 13th December 1878, and dated the 14th June 1878.
PROVISIONAL SPECIFICATION left by the said James Bidwell and Arthur
Bidwell at the Office of the Commissioners of Patents on the 14th June
1878..
66
JAMES BIDWELL and ARTHUR BIDWELL, both of Hackney, in the County of
Middlesex. 'AN IMPROVEMENT APPLICABLE TO NAIL, SCRUBBING, AND OTHER
BRUSHES."
Our Invention relates to nail, scrubbing, and other brushes, and consists in the
combination therewith of a rubber for removing ink, dirt, and other stains, com-
posed of pumice stone, or an artificial composition of pumice stone, moulded or
otherwise brought to a suitable form, and inserted in the back of the brush in the
following manner :-
<r
In the brush back" an oblong or other hole, corresponding to the shape of the
rubber, is punched or otherwise made, and the sides of this hole are dovetailed or
undercut in order to receive the base of the rubber, which is made of a corresponding
dovetail form at the sides, and retain it firmly in position. The stone or composition'
may however be fastened by other means, such as pins, screws, or cement.
The rubber is inserted through this hole from the under side before the "back'
is secured to the "block" of the brush, which is afterwards done in the usual way.
The rubber is thus firmly mounted in the "block" of the brush, and stands out
from the back in a convenient position for immediate use when required.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Bidwell and Arthur Bidwell in the Great Seal Patent Office
on the 14th December 1878.
JAMES BIDWELL and ARTHUR BIDWELL, both of Hackney, in the County of
Middlesex. "AN IMPROVEMENT APPLICABLE TO NAIL, SCRUBBING, AND OTHER
BRUSHES."
Our Invention relates to nail, scrubbing, and other brushes, and consists in the
combination therewith of a rubber for removing ink, dirt, and other stains, com-
posed of pumice stone, or an artificial composition of pumice stone, known in the
trade as " composition pumice stone," or other suitable composition moulded or
otherwise brought to a suitable form, and inserted in the back of the brush in the
following manner :-
In the brush "back an oblong or other hole, corresponding to the shape of the
rubber, is punched or otherwise made, and the sides of this hole are dovetailed or
undercut, in order to receive and firmly retain the rubber, the base of which is made
of corresponding dovetail form at the sides.
The rubber is inserted through this hole from the under side before the "back"
is secured to the "block" of the brush, which is afterwards done by means of
screws or rivets in the usual way. The stone or composition rubber may however
be fastened by other means, such as pins, screws, or cement, but the method above
described is preferred. The rubber is thus firmly mounted in the back of the
brush, and stands out therefrom in a convenient position for immediate use when
required.
DESCRIPTION OF DRAWINGS.
Figure 1 is a side view, and Figure 2 a cross section of a nail brush, provided with
the pumice stone or composition rubber.
Figure 3 is an upper and under side view of the brush "back" separately.
The application of the rubber to other sorts of brushes will be readily understood
without further illustration.
A is the "block" in which the bristles or fibre are set as usual; B is the brush
"back;" and C is the rubber of pumice stone or composition. The latter is shaped
or moulded to the form shown clearly in Figures 1 and 2, the opposite sides a, a,
being at an angle to one another, especially at the lower part, so as to give the
rubber a dovetail form at the base, and the "back" B has an opening b cut in it
corresponding to the size and shape of the rubber C, with the sides undercut at an
angle corresponding to the sides a of the rubber. The ends of the rubber and of the
opening b may or may not be of similar dovetail form.
Figure 4 is a cross section of the brush, showing the rubber secured by wire
rivets c passing through from side to side, or it may be fastened by screws intro-
duced from the face of the block.
Having described the nature of our Invention, and the manner of performing the
same, we declare that what we claim as our Invention to be protected by the herein-
before in part recited Letters Patent is, the combination with a nail, scrubbing, or
other brush of a rubber of pumice stone or composition inserted in the brush
"back," substantially as and for the purpose specified.
In witness whereof, I, the said James Bidwell, for myself and on behalf of
the said Arthur Bidwell, have hereunto set my hand and seal, this Twelfth
day of December, in the year of our Lord One thousand eight hundred and
seventy-eight.
JAMES BIDWELL. (L.S.)