Improvements in the Manufacture of Wire Brushes and Brooms.
Year: 1889

page_text: Date of Application, 17th Jan., 1889
Complete Specification Left. 23rd Sept., 1889-Accepted, 26th Oct., 1889
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Wire Brushes and Brooms.
I, ANTOINE DUMAS-GARDEUX of 1 Boulevard St. Denis, Paris, France, Manufacturer,
do hereby declare the nature of this invention to be as follows:-
My invention consists in the employment of galvanized bronze wires in the
manufacture of brushes and brooms. When such wires are used the brushes or
brooms are much more durable than those made with brass, iron or steel wires.
The bronze wires which I employ are tempered so as to give them great elasticity ;
they are also galvanized. The galvanization renders them harder, gives them still
more elasticity, and makes them inoxydizable, all of which are essential qualities in
the manufacture of metallic brushes.
For the galvanization of the bronze wires I apply zinc or tin either by the process
of galvano-plasty by means of an electric current, or by the double affinity method,
a chemical process.
These two modes of galvanization have the advantage of not injuriously affecting
the bronze wires, but of giving them on the contrary more elasticity, while at the
same time rendering them more inoxydizable. Ordinary galvanization effected by
means of baths of melted tin or zinc re-heats the bronze wires and renders them
soft so that they cannot be advantageously employed for the manufacture of
brushes.
1000
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Wire Brushes and Brooms.
I, ANTOINE DUMAS-GARDEUX, of 17 rue Geoffroy-l'Angevin, Paris, France,
Manufacturer, do heroby 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 :-
The invention has for its object the application of bronze wire, which is straightened
and galvanized, to the manufacture of all kinds of metallic brushes and brooms,
such for example as horse brushes, hair brushes, circular brushes, gun brushes,
brooms, etc.
Metallic brushes manufactured from bronze wire last much longer than those made
of brass, iron or steel wire, and are more suitable for the purposes for which such
brushes are employed.
For this purpose the bronze wire which is employed is annealed and straightened,
so as to impart very great elasticity thereto. The wire is then galvanized in a special
manner consisting in applying thereto either tin or zinc by the galvano-plastic or
electric method, or by means of the double affinity or chemical method.
These two methods of galvanizing have the advantage of not injuriously affecting
the bronze wire, but on the contrary of rendering it harder and imparting thereto
more spring or elasticity, and finally of rendering it inoxidizable, all of which
qualities are essential for metallic brushes.
It is known that ordinary galvanizing by means of baths of molten tin or zinc
reheats bronze wire, rendering it soft and unsuitable for the manufacture of

page_text: Having now particularly described and ascertained the nature of my said Invon-
tion, and in what manner the same is to be performed, I declare that what 1
claim is :-
The employment in the manufacture of metallic brushes and brooms of all kinds
and for all purposes, of bronze wire straightened and galvanized, all substantially as
specified.
111
.
1000
ALLISON BROS.,
Agents for the Applicant.