A New or Improved Folding Brush.
Year: 1891

page_text: Date of Application, 31st Mar., 1891
Complete Specification Left, 31st Dec., 1891-Accepted, 5th Mar., 1892
PROVISIONAL SPECIFICATION.
A New or Improved Folding Brush.
We, OTTO VENNEWITZ and GUSTAV REINECKE, Senior, both of 108 Potsdamer-
strasse, Berlin, in the Empire of Germany, Manufacturers, trading under the style
of H. Reinecke, do hereby declare the nature of this invention to be as follows:-
Our invention relates to a new or improved brush capable of being folded
upon itself in such manner as to enclose the bristles on all sides and so protect
them from dust. The said brush has also the advantages of 'being attractive in
appearance and of occupying but little space when folded.
In order that our invention may be more readily understood we have annexed
hereto a sheet of drawings in which similar letters of reference indicate similar
parts.
In the said drawings
Figure 1 is a perspective view of the closed brush,
Figure 2 a perspective view of the brush when open and ready for use,
Figure 3 a longitudinal section through the brush when open, and
Figure 4 a transverse section through the brush when closed.
open
A, A, are two hollow cases connected by a hinge c and together constituting a
closed box as it were when folded up as shewn in Figure 1. a a are two supports
for the bristles, and bb two spiral springs tending to press the bristle supports
outwards from the cases. When the ends of the bristles in the two cases are
on a level and the brush is maintained in its open position by means of the
snap d. The brush is closed by pressing lightly upon the snap d and turning one
case over on the other. The bristles then come into contact and they and their
supports are pressed into their respective cases. The brush is now retained in its
closed position by means of the snap e.
The form of brush illustrated may be considerably modified in detail without
departing from the spirit of my invention.
Dated this 31st day of March 1891.
J. G. LORRAIN, M. Inst. M.E., M. Inst. E.E.,
Applicants' Patent Agent.
COMPLETE SPECIFICATION.
A New or Improved Folding Brush.
We, OTTO VENNEWITZ and GUSTAV REINECKE Senior, both of Lippspringe
in the Kingdom of Prussia, formerly stated to be of 108 Potsdamerstrasse, Berlin,
in the Empire of Germany, Manufacturers, trading under the style of H. Reinecke,
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:-
Our invention relates to a new or improved brush capable of being folded upon
itself in such manner as to enclose the bristles on all sides and so protect them
from dust. The said brush has also the advantages of being attractive in
appearance and of occupying but little space when folded.
In order that our invention might be more readily understood we annexed to
our Provisional Specification a sheet of drawings which illustrated one form of our
invention.

page_text: In the said drawings lert with our Provisional Specification
Figure 1 is a perspective view of the closed brush,
Figure
a perspective view of the brush when open and ready for use,
Figure 3 a longitudinal section through the brush when open and
Figure 4 a transverse section through the brush when closed.
AA are two hollow cases connected by a hinge c and together constituting a
closed box as it were when folded up as shown in Figure 1. a a are two supports
for the bristles, and bb two spiral springs tending to press the bristle supports
outwards from the cases. When open the ends of the bristles in the two cases
are on a level and the brush is maintained in its open position by means of the
snap d.
The brush is closed by pressing lightly upon the snap d and turning one case
over on the other. The bristles then come into contact and they and their supports
are pressed into their respective cases.
The brush is now retained in its closed position by means of the snap e.
The form of brush illustrated in the above mentioned figures may be considerably
modified in detail without departing from the spirit of our invention.
One such modified form is shown in Figures 1 to 4 of the sheet of drawings
annexed hereto. Of the said figures
Figure 1 is a perspective view of the brush when open,
Figure 2 is a longitudinal section of the brush when open,
Figure 34 is a longitudinal section of the brush when closed or folded up and
Figure 4 is a part sectional plan on the line y y of Figure 2ª.
In these figures (Figures 1 to 4) A A are the two hollow cases connected by
the hinge band together constituting a closed box as it were when folded together
as shown in Figure 3A. a a are two supports or backs for the bristles of the
brush which when the brush is open and ready for use as shown in Figures 1ª
and 2 are pressed by the spiral springs g g against the catches or projections c c
placed at suitable points on the inside edges of the cases A A. The spiral
springs g g are fixed at their lower extremities to the bottom of cavities provided
in the bottom of the cases into which cavities the springs close up when compressed
on the brush being folded up. These cavities maintain the springs in position and
protect them when they are compressed. The undersides of the two supports a a
are connected by a cord f which may be of flexible steel band, chain, catgut, or
other such suitable substance. The cord f passes over and is guided by small
pulleys or rollers fixed to the cases A. A at the points ii and k k at which latter
points, there are suitable openings to allow of the said cord passing through the
ends of the cases. In order to prevent undue wearing of the cord against the
outside edges of these openings the said edges are rounded or grooves are cut
in which the cord works.
When the brush is closed as shown in Figure 34 the cord f rests against
the hinge which may be provided at its middle where the cord touches it
with a roller to facilitate the movement of the said cord. The brush is fixed
in the open position by the fastening and in the closed position by the
snap fastening e e¹ both of which fastenings are easily freed by a slight manual
pressure. If the brush is in the open position as shown in Figure 24 the bristles
are pushed to a suitable level for brushing (that is to say, against the catches c c)
by the extension of the springs g g, but as soon as the snap h h¹ is unfastened and
we begin to close the brush by folding the two parts together the points k k are
separated, the cord f is stretched and the supports a a are pulled against the action
of the spiral springs g g into the cases A A which can then be closed up tight and
fastened by means of the snap e e¹.
The form of brush shown in Figures 1 to 4 has the advantage over the form
shown in Figures 1 to 4 that in the act of closing the brush no pressure of the
bristles on one support against those on the other support takes place.
The form of our invention which we prefer to use in practice is that shown in
Figures 1 to 4^.

page_text: Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
1. In a folding brush, the combination of two hinged hollow cases, two supports
with bristles, and two or more springs for sustaining the same substantially as set
forth.
2. The combination of the elements mentioned in Claim 1 with a cord for
actuating the supports of the bristles substantially as and for the purpose set
forth.
3. The arrangement and combination of parts set forth with reference to
Figures 1, 2, 3 and 4.
4. The arrangement and combination of parts set forth with reference to
Figures 14, 24, 34 and 4^.
Dated this 31st day of December 1891.
J. G. LORRAIN, M. Inst. E.E., M. Inst. M.E.,
Agent for Applicants.