Manufacture of Brushes with Back and Handle of Celluloid, and Apparatus therefor.
Year: 1894

page_text: Date of Application (in United Kingdom), 7th Nov., 1894
Complete Specification Left, 22nd Jan., 1895-Accepted, 23rd Feb., 1895
PROVISIONAL SPECIFICATION.
Manufacture of Brushes with Back and Handle of Celluloid, and
Apparatus therefor.
We, HENRI NOEL BAUX of 22 Rue des Lilas, Bagnolet, Seine, France,
Mechanical Engineer, and LEON JULES GLAENZER, of 35 Boulevard de Stras-
bourg, Paris, France, Merchant, do hereby declare the nature of this invention
to be as follows:-
This invention has for its object a manufacture of brushes with a celluloid back
which we will describe with reference to the accompanying drawings.
The invention relates to brushes of various kinds such as tooth brushes, nail
brushes and hair brushes, but more particularly to the first named, which require
to have shaped or more or less moulded handles. We start in the manufacture
with a tube of celluloid, such as is shewn at T Fig. 1; this is enclosed in a mould
formed in two or more parts, the interior of which is shaped and hollowed
according to the form and the ornaments required for the back and handle.
Figs. 2 and 3 shew the mould M respectively in external view and sectional
plan; the several parts of which the mould is composed are secured together by
looped straps a and there are fitted into the two ends the pieces A A¹ which are
kept pressed up by the screws v. One of these pieces has two tubular branches,
the one for hot water and the other for cold water c.
The other piece A' has the discharge branch d.
The tube having been placed in the mould and its ends secured between the
cones of the pieces A A', hot water under pressure is introduced through b; the
celluloid softens and expands, applying itself to the interior of the mould of which
it assumes the configuration.
Cold water is then introduced through c so that the handle retains the form
which it has assumed. The mould is then opened and a moulded object X is
obtained such as is shown at Figs. 4 and 5, with two tubular appendices e that
are then cut off (Figs. 6 and 7).” On the other hand a filling piece B (Figs, 8
and 9) is formed in bone or other material, serving to fill the part of the moulded
object of celluloid forming the back of the brush; to this filling piece is fixed
a stem of iron wire or other metal which serves to penetrate into the part
forming the handle. When the bone filling piece has been forced in, the part
of the moulded object which encloses it is steeped in hot water; the celluloid
contracts and applies itself firmly to the bone filling piece.
Plaster of Paris is then run into the opposite end for filling the handle; the
ends are filed and the celluloid casing is completed by cementing into the ends
separate pieces.
There is thus produced a moulded brush body such as shewn at Figs. 10 and 11.
It is furnished with bristles in the ordinary manner as shewn at Fig. 12.
The hollow moulded celluloid obiect can also be left unfilled with a filling

page_text: piece B of bone or other material, and the fact that the moulded object is hollow
be utilised for fixing the tufts of bristles, which is effected as follows:-There
are formed small tubes 7 (Fig. 13) into which are inserted the lower ends of the
bristle tufts (Fig. 14). The tubes are pinched together laterally at on the
upper part, so that the tufts are firmly enclosed in the tubes, as shewn at Fig. 15
(section at m n) and 16 (section p g).
These tubes with their tufts are introduced into the hollow moulded back which
has corresponding perforations formed in one face thereof, and plaster of Paris
is run in as shewn at Fig. 17 and in detail to a larger scale at Fig. 18 so as to
securely hold the tubes with the bristles.
Dated this 7th day of November 1894.
ABEL & IMRAY,
Agents for the Applicants.
Manufacture of Brushes with Back and Handle of Celluloid, and
Apparatus therefor.
We, HENRI NOEL BAUX of 22 Rue des Lilas, Bagnolet, Seine, France,
Mechanical Engineer, and LEON JULES GLAENZER, of 35 Boulevard de Stras-
bourg, Paris, France, Merchant, 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 :-
This invention has for its object a manufacture of brushes with a celluloid back
which we will describe with reference to the accompanying drawings.
-
The invention relates to brushes of various kinds such as tooth brushes, nail
brushes and hair brushes, but more particularly to the first named, which require
to have shaped or more or less moulded handles. We start in the manufacture
with a tube of celluloid, such as is shewn at T Fig. 1; this is enclosed in a mould
formed in two or more parts, the interior of which is shaped and hollowed according
to the form and the ornaments required for the back and handle.
Figs. 2 and 3 shew the mould M respectively in external view and sectional
plan; the several parts of which the mould is composed are secured together by
looped straps a and there are fitted into the two ends the pieces A. A' which are
kept pressed up by the screws r. One of these pieces has two tubular branches,
the one for hot water and the other for cold water c.
The other piece A has the discharge branch d.
The tube having been placed in the mould and its ends secured between the
cones of the pieces A A'; hot water under pressure is introduced through b; the
celluloid softens and expands, applying itself to the interior of the mould of which
it assumes the configuration.
Cold water is then introduced through e so that the handle retains the form
which it has assumed. The mould is then opened and a moulded object X is
obtained such as is shown at Figs. 4 and 5, with two tubular appendices e that are
then cut off (Figs. 6 and 7). On the other hand a filling piece B (Figs. 8 and 9)
is formed in bone or other material, serving to fill the part of the moulded object
of celluloid forming the back of the brush; to this filling piece is fixed a stem of
iron wire or other metal which serves to penetrate into the part forming the handle.
When the bone filling piece has been forced in, the part of the moulded object
which encloses it is steeped in hot water; the celluloid contracts and applies itself
firmly to the bone filling piece.
Plaster of Paris is then run into the opposite end' for filling the handle; the ends
are filed and the celluloid casing is completed by cementing into the ends separate
pieces.

page_text: There is thus produced a moulded brush body such as shewn at Figs. 10 and 11.
It is furnished with bristles in the ordinary manner as shewn at Fig. 12.
The hollow moulded celluloid object can also be left unfilled with a filling
piece B of bone or other material, and the fact that the moulded object is hollow
be utilised for fixing the tufts of bristles, which is effected as follows:-There are
formed small tubes 9 (Fig. 13) into which are inserted the lower ends of the bristle
tufts h (Fig. 14). The tubes are pinched together laterally at i on the upper part,
so that the tufts are firmly enclosed in the tubes, as shewn at Fig. 15 (section
at m n) and 16 (section p g).
These tubes with their tufts are introduced into the hollow moulded back which
has corresponding perforations formed in one face thereof, and plaster of Paris is
run in as shewn at Fig. 17 and in detail to a larger scale at Fig. 18 so as to
securely hold the tubes with the bristles.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The herein described manufacture of brushes with mounting and handle of
celluloid wherein such mounting and handle are formed out of a tubular celluloid
body, moulded to the required shape by heat and pressure.
2. In the manufacture of brushes with mounting and handle of celluloid,
referred to in the first claim the use of apparatus for moulding the hollow
celluloid body by heat and pressure constructed and operating substantially as
described with reference to Figs. 2 and 3 of the accompanying drawings.
Dated this 22nd day of January 1895.
.
ABEL & IMRAY,
Agents for the Applicants.