IMPROVEMENTS IN WIRE BRUSHES
Year: 1881

page_text: LETTERS PATENT to Gerard Wenzeslaus von Nawrocki, Proprietor of the Firm
of J. Brandt & G. W. v. Nawrocki, Patent .Solicitor and Civil Engineer,
of 124, Leipziger Strasse, Berlin, in the German Empire, for an Invention of
"IMPROVEMENTS IN WIRE BRUSHES." A communication by Carl Eduard
Flemming, senior, (of the Firm Ed. Flemming et Co.), of Schönheide, in the
Kingdom of Saxony.
PROVISIONAL SPECIFICATION left by the said Gerard Wenzeslaus von
Nawrocki at the Office of the Commissioners of Patents on the 23rd April
1881.
GERARD WENZESLAUS von NAWROCKI, Proprietor of the Firm of J. Brandt
& G. W. v. Nawrocki, Patent Solicitor and Civil Engineer, of No. 124, Leipziger
Strasse, Berlin, in the German Empire. "IMPROVEMENTS IN WIRE BRUSHES."
[A communication by Carl Eduard Flemming, senior (of the Firm Ed. Flemming et
Co.), of Schönheide, in the Kingdom of Saxony.]
This Invention relates to that description of brushes in which wires serving in
lieu of ordinary bristles are secured in an elastic plate or foundation of caoutchouc,
which in its turn is secured to the back of the brush.
The present Invention consists in the employment of improved means for
securing the elastic foundation to the back of the brush.
For this purpose, according to one arrangement, there is stitched to the edge of
the foundation projecting beyond the wires a strip of textile fabric, leather, paper,
or other suitable pliable material capable of being firmly cemented by means of
glue or other cement, and this edging of textile fabric is then either cemented
directly on to the wood backing, or a separate backing of textile fabric, leather,.
paper, or other suitable material is either cemented or stitched to the said edging,
and is in its turn cemented to the wood backing of the brush. The said edging
may either be stitched to the back surface of the foundation, or by preference it is
stitched first to its front surface, then folded round the edge to the back thereof,
and again stitched.

page_text: If desired a padding of wool or other suitable material may be introduced
between the back of the foundation, or the backing of textile material and the
backing of the brush, which may also be provided with a rim of tufts of bristles
surrounding the wires.
According to another arrangement a metal rim of
shaped transverse
section is made of a configuration corresponding to that of the elastic foundation,
the edge of which is made to enter the hollow of the rim, and is held therein by
inwardly projecting lips on the latter that are made to nip the foundation. The
rim is then secured to the brush backing either by nails or screws, or it may be
attached thereto by a hinge at one end, and secured by a catch at the other end, so
that on releasing the catch the rim with the brush, surface may be turned up on
its hinge.
•
If desired the elastic foundation may in this case also be strengthened by an
edging or backing of textile material or leather stitched thereto.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Gerard Wenzeslaus von Nawrocki in the Great Seal Patent Office on the
20th October 1881.
GERARD WENZESLAUS von NAWROCKI, Proprietor of the Firm of J. Brandt &
G. W. v. Nawrocki, Patent Solicitor and Civil Engineer, of No. 124, Leipziger
Strasse, Berlin, in the German Empire. "IMPROVEMENTS IN WIRE BRUSHES."
A communication by Carl Eduard Flemming, senior, (of the Firm Ed. Flemming et
Co.), of Schönheide, in the Kingdom of Saxony.
This Invention relates to that description of brushes in which wires serving in
lieu of ordinary bristles are secured in an elastic plate or foundation of caoutchouc,
which in its turn is secured to the back of the brush.
The present Invention consists in the employment of improved means for
securing the elastic foundation to the back of the brush:
For this purpose, according to one arrangement, there is stitched to, the edge of
the foundation projecting beyond the wires a strip of textile fabric, leather, paper,
or other suitable pliable material capable of being firmly cemented by means of
glue or other cement, and this edging of textile fabric is then either cemented
directly on to the wood backing, or a separate backing of textile fabric, leather,
paper, or other suitable material is either cemented or stitched to the said edging,
and is in its turn cemented to the wood backing of the brush. The said edging
may either be stitched to the back surface of the foundation, or by preference it is
stitched first to the front surface, then folded round the edge to the back thereof
and again stitched.
If desired a padding of wool or other suitable material may be introduced
between the back of the foundation or the backing of textile material and the
backing of the brush, which may also be provided with a rim of tufts of bristles
surrounding the wires.
According to another arrangement a metal rim of
shaped transverse
section is made of a configuration corresponding to that of the elastic foundation,
the edge of which is made to enter the hollow of the rim, and is held therein by
inwardly projecting lips on the latter that are made to nip the foundation. The
rim is then secured to the brush backing either by nails or screws, or it may be
attached thereto by a hinge at one end, and secured by a catch at the other end, so
that on releasing the catch the rim with the brush surface may be turned up on
its hinge.
If desired the elastic foundation may in this case also be strengthened by an
edging or backing of textile material or leather stitched thereto.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 of the Drawings shews a section of a brush with the before described
Invention applied thereto. a is the elastic foundation; b, the strip of fabric sewn
to the edge thereof; and d, the backing of fabric cemented or stitched to b, and
cemented to the wood back of the brush, which may either be recessed to receive
the above parts, or be left flat. The cementing of d to the wood may be effected
either over the entire surface or only round the edge; in the latter case a layer of
wool or other material may be introduced behind it at the centre to add to the
pliability of the backing. The brush surface may either be of the kind shewn, or
it may be of card wires, or a combination of bristles and wires.
Fig. 2 shews an enlarged section of the arrangement, where the elastic foun-.
dation a is held at its edge by a trough shaped metal rim f, whose edges i, i, are
turned inwards so as to nip the foundation somewhat, and thus hold it securely.

page_text: This rim is secured to the wood back either by pinning, as shewn at the cross
section, Fig. 3, and part plan, Fig. 4, or it is secured by a hinge g at one end, as
shewn in longitudinal section and plan at Figs. 5 and 6, the other end being
provided with a loop h held by a spring catch m, so that the brush surface with the
metal rim can be turned up on its hinge from the wood back A. In this arrange-
ment also a cushion of elastic material may be provided under the foundation a,
and the brush surface may be of wire cards, or of a combination of wires and bristles.
Having thus described the nature of the said Invention, and in what manner the
same is to be performed as communicated to me by my correspondent, I claim,—.
First. Securing the elastic foundation of brushes to their backs by means of a
strip of suitable fabric or material capable of being cemented to the back, such
strip being sewn to the elastic foundation, substantially as herein described.
Second. Securing the elastic foundation of brushes to their backs by attaching it
by sewing to a backing of suitable fabric or material, which is then cemented-to
the back of the brush, substantially as herein described.
Third. Securing the elastic foundation of brushes in a metal trough shaped rim,
which is then attached in any convenient manner to the back of the brush,
substantially as herein described.
Fourth. The construction of brushes herein described with reference to the
accompanying Drawings.
In witness whereof, I, the said Gerard Wenzeslaus von Nawrocki, have
hereunto set my hand and seal, this Eighteenth day of October, in the year
of our Lord One thousand eight hundred and eighty one.
GERARD WENZESLAUS VON NAWROCKI. (L.S.)