Improvements in Brushes and in the Manufacture of 'same.
Year: 1889

page_text: Date of Application, 2nd Apr., 1889
Complete Specification Left, 2nd Jan., 1890-Accepted, 8th Feb., 1890
PROVISIONAL
SPECIFICATION.
Improvements in Brushes and in the Manufacture of 'same.
I; LOUIS WILLIAM NIMSCHKE, of '280, Broadway, in the City, County and State of
New York, United States of America, Mechanic, do hereby declare the nature of this
invention to be as follows:
This invention relates to certain improvements in the manufacture of hair and other
brushes and the invention consists firstly of a brush of novel construction secondly of
a method of manufacturing the same and thirdly of a mould or die for making said
brushes.
My improved brush is composed of a tuft-holding base plate which is made of brass
tin or other suitable soft metal and of the shape and size of the brush to be manu-
factured. This base plate is provided with a number of perforations and conically
tapering rims which are advantageously located at that side of the plate which is
covered by the back. The back may be of any suitable material wood metal or other-
wise and is united to the tuft holding.base plate by means of an interposed layer of
cement. The rims are arranged around the perforations of the base piate and serve
to retain firmly the tufts of bristles which are inserted into said socket holes the ends
of the, rims being compressed or contracted so as to bind on the bristle tufts and retain
them firmly in position. The mould for making my improved brush is made of any
suitable size and shape according to the size and shape of the tuft holding plate. The
parts composing the mould are advantageously made of steel and are placed into a
press after the plate has been inserted and the bristles supplied with the same the
parts of the mould being then compressed so that the conical rims of the tuft holding
plate are compressed on the tufts of the bristles. The mould is composed of a base
block having a number of socket holes of such a depth as is required by the length of
the projecting ends of the tufts at one side of the plate the upper edges of the sockets
being made of conical or gradually enlarged shape so as to permit the entrance of the
conical rims of the tuft holding plate. Above the base block and the retaining plate
are arranged in successive order a stripping or clearing plate a filling block and a
plate or shield for protecting the ends of the bristles. The stripping plate filling
block and protecting plate or shield are guided on fixed guide pins of the base block
and provided with as many holes as there are sockets in the base block and perforations
in the retaining plate said holes being in line with each other and with the perfora-
tions of the retaining plate.
When it is desired to use the mould for making brushes the stripping or clearing
plate filling block and protecting plate are removed and the tuft retaining plate placed
in position on the base block so that the conical rims of the same project into the
enlarged upper ends of the sockets of the base block. The stripping plate and filling
block are then placed in position above said plate and all the holes of the filling block
retaining plate and base block carefully filled with tufts of bristles care being taken
that a uniform number of bristles is inserted into each hole of the filling block and
socket of the base block When this is accomplished the protecting plate or shield is
placed on the filling block and the whole exposed to pressure in the press so that the
ends of the conical rims of the tuft retaining plate are compressed or contracted and
tightly closed around the tufts or bristles in the sockets of the base block. The com-
pression of the retaining plate stripping plate and filling block by the action of the
press lowers the retaining plate and causes the end of the bristles to project slightly
above the filling block into the openings of the protecting plate which serves to protect
the ends against injury by the plunger of the press which would be the case when no
protecting plate or shield were used. When the compressing action on the rims of
the retaining plate is completed the protecting plate filling block and stripping plate

page_text: are removed and finally the retaining plate with the tufts of bristles secured thereto
lifted clear of the base block and removed.
The operation just described is then repeated and so on the brushes being thus
manufactured in a quick and reliable manner and at a considerable saving of time and
labour. The brush is then finished by interposing a layer of cement between the
tuft retaining plate and the back in the usual manner. This method of manufacturing
brushes is adapted to all kinds of brushes such as hair brushes clothes brushes blacking
brushes etc. and produces a cheap strong and durable brush as the tuft holding base
plate can be cheaply made of suitable cast metal or pressed in dies when metal of
sufficient ductability and softness is employed.
Dated this 2nd day of April 1889.
TONGUE & BIRKBECK,
34, Southampton Buildings, London, W.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Brushes and in the Manufacture of same.
I, LOUIS WILLIAM NIMSCHKE, of 280, Broadway, in the City, County and State
of New York, United States of America, Mechanic, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
i
This invention relates to certain improvements in the manufacture of hair and
other brushes and the invention consists firstly of a brush of novel construction
secondly of a method of manufacturing the same and thirdly of a mould
for making said brushes.
or die
In the accompanying drawings Figure 1 represents a plan view of the tuft holding
base plate used in my improved brush.
Figure 2 is a vertical longitudinal section of my improved brush.
Figures and
are detail sections drawn on a larger scale and showing a portion
of the tuft retaining plate before and after its compression by the mould and
Figures 5 and 6 are respectively a vertical longitudinal section and a top view of
the mould for making my brushes.
Similar letters of reference indicate corresponding parts.
My improved brush is composed of a tuft holding base plate which is made of brass
tin or other suitable soft metal and of the shape and size of the brush to be
manufactured. This base plate A is provided with a number of perforations a and
conically tapering rims a¹ which are advantageously located at that side of the plate
which is covered by the back B. The back B may be of any suitable material
wood metal or otherwise and is united to the tuft holding base plate A by means of
an interposed layer of cement as shown clearly in Figure 2. The rims a are
arranged around the perforations of the base plate A and serve to retain firmly the
tufts of bristles which are inserted into said socket holes the ends of the rims
being compressed or contracted so as to bind on the bristle tufts and retain them.
firmly in position. The mould for making my improved brush is made of any
suitable size and shape according to the size and shape of the tuft holding plate..
The parts composing the mould are advantageously made of steel and are placed into
a press after the plate has been inserted and the bristles supplied with the same
the parts of the mould being then compressed so that the conical rims of the tuft
holding plate are compressed on the tufts of the bristles. The mould is composed of
a base block C having a number of socket holes of such a depth as is required by
the length of the projecting ends of the tufts at one side of the plate the upper
edges of the sockets being made of conical or gradually enlarged shape so as to
permit the entrance of the conical rims of the tuft holding plate A as shown in
Figure 5.
Above the base block C and the retaining plate A are arranged in
successive order a stripping or clearing plate D a filling block E and a plate or
shield F for protecting the ends of the bristles. The stripping plate D filling block E
and protecting plate or shield F are guided on fixed guide pins C₁ of the base

page_text: block C and provided with as many holes as there are sockets in the base block C
and perforations in the retaining plate A said holes being in line with each other and
with the perforations of the retaining plate as shown in Figure 5.
When it is desired to use the mould for making brushes the stripping or clearing
plate filling block and protecting plate are removed and the tuft retaining plate
placed in position on the base block so that the conical rims of the same project into
the enlarged upper ends of the sockets of the base block C. The stripping
plate D and filling block E are then placed in position above said plate and all the
holes of the filling block retaining plate and base block carefully filled with tufts
of bristles care being taken that a uniform number of bristles is inserted into each
hole of the filling block and socket of the base block. When this is accomplished
the protecting plate or shield F is placed on the filling block and the whole exposed
to pressure in the press so that the ends of the conical rims of the tuft retaining
plate are compressed or contracted and tightly closed around the tufts or bristles in
the sockets of the base block.
The compression of the retaining plate stripping
plate and filling block by the action of the press lowers the retaining plate and causes
the end of the bristles to project slightly above the filling block into the openings
of the protecting plate E which serves to protect the ends against injury by the
plunger of the press which would be the case when no protecting plate or shield were
used. When the compressing action on the rims of the retaining plate is completed
the protecting plate filling block and stripping plate are removed and finally the
retaining plate with the tufts of bristles secured thereto lifted clear of the base block
and removed. The operation just described is then repeated and so on the brushes
being thus manufactured in a quick and reliable manner and at a considerable saving
of time and labour. The brush is then finished by interposing a layer of cement
between the tuft retaining plate and the back in the usual manner.. This method of
manufacturing brushes is adapted to all kinds of brushes such as hair brushes
clothes brushes blacking brushes etcetera etcetera and produces a cheap strong and
durable brush as the tuft holding base plate can be cheaply made of suitable cast
metal or pressed in dies when metal of sufficient ductability and softness is
employed.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I claim is:-
1. A brush composed of a back a metallic base plate secured to said back said
base plate having opening with tapering rims and tufts of bristles inserted into said
openings and retained by compressing the ends of the rims upon the bristle tufts.
substantially as set forth.
2. The method herein described of making brushes which consists in casting or
pressing a perforated metallic base plate with tapering rims around the perforations
of the plate secondly filling the perforations with tufts of bristles and thirdly
contracting the edges of the tapering rims so that they bind tightly on the tufts of
bristles in the perforations of the base plate substantially as set forth.
3. A mould for making brushes which consists of a base block having sockets with
enlarged upper ends a stripping or clearing plate and a filling block the stripping
plate and filling block being provided with openings in line with the sockets of the
base block substantially as set forth.
4. A mould for making brushes composed of a base plate having sockets with
enlarged upper ends a stripping plate or clearing plate a filling block and a protecting
plate or shield above said filling block said stripping plate filling block and protecting
plate being provided with openings in line with the sockets of the base block
substantially as set forth.
1 1
T
1000
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C., ;
Agents for the Applicant.