and other purposes.
Year: 1886

page_text: Date of Application, 13th May, 1886.
Complete Left, 27th Jan., 1887.
Complete Accepted, 15th Mar., 1887.
and other purposes.
I JEHU HOLLINGSWORTH WOOD of 119 Warren Street, Lebanon, in the County of
Warren, State of Ohio, United States of America, Dentist, do hereby declare the
nature of this invention to be as follows:-
My Invention relates to the production of thin sheets of vulcanizable gilding
material designed more especially for use in the manufacture of dental plates, but also
applicable to many other uses in the arts.
The Invention consists essentially of a sheet of vulcanizable caoutchouc or rubber to
which a coating or coatings of chloride of silver has been applied, and also of the
process or method of applying such coating of chloride of silver, and the process by
which gold foil is united thereto.
In producing the article above named, I take a sheet of vulcanizable rubber
or caoutchouc and coat the surface with pulverized chloride of silver, rubbing the
said pulverized chloride of silver into the various inequalities which may exist in the
surface of the rubber or caoutchouc, one or both sides of the rubber being so coated.
After the rubber has been coated with chloride of silver as described, it may in like
manner be coated with hydrate of chloral in order that the gilding rubber and the
plastic vulcanite will not adhere when the two substances are brought together in the
vulcanizing flask.
:-
In forming gold lined dental plates the gilding rubber is used as follows:-
After the case is packed in the ordinary manner with a cloth over the model, the
model and cloth are removed, gold foil is then put on the model, the gilding rubber
placed over the plastic vulcanite in the flask, the model with the applied gold foil is
inserted and the flask closed and treated in the usual manner, after which it will be
found that the gold and newly formed vulcanite will constitute one integral mass, the
chlorine having been driven off, or having been absorbed by the iron receptacle used in
the process described.
I have found in practice that better results are obtained by coating both sides of the
gilding rubber with chloride of silver, but very satisfactory work may be done when
one side only of the rubber is so coated.
JH WOOD
JH
WOOD
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.

page_text: The Manufacture of Vulcanizable Gilding Material for Dental
and other Purposes.
I JEHU HOLLINGSWORTH WOOD of 119 Warren Street, Lebanon, in the County of
Warren, and State of Ohio, United States of America, Dentist, 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 :—
My invention relates to the production of thin sheets of vulcanizable gilding material
designed more especially for use in the manufacture of dental plates, but also applicable
to many other uses in the arts.
The invention consists essentially of a sheet of vulcanizable caoutchouc or rubber to
which a coating or coatings of chloride of silver has been applied, and also of the
process or method of applying such coating of chloride of silver, and the process by
which gold foil is united thereto.
In producing the article above named, I take a sheet of vulcanizable rubber or
caoutchouc and coat- the surface with pulverized chloride of silver, rubbing the said
pulverized chloride of silver into the various inequalities which may exist in the surface
of the rubber or caoutchouc, one or both sides of the rubber being so coated.
After the rubber has been coated with chloride of silver as described, it may in like
manner be coated with hydrate of chloral in order that the gilding rubber and the
plastic vulcanite will not adhere when the two substances are brought together in the
vulcanizing flask.
In forming gold lined dental plates the gilding rubber is used as follows:-
After the case is packed in the ordinary manner with a cloth over the model, the
model and cloth are removed, gold foil is then put on the model, the gilling rubber
placed over the plastic vulcanite in the flask, the model with the applied gold foil is
inserted and the flask closed and treated in the usual manner, after which it will be
found that the gold and newly formed vulcanite will constitute one integral mass, the
chlorine having been driven off or having been absorbed by the iron receptacle used in
the process described.
I have found in practice that better results are obtained by coating both sides of the
gilding rubber with chloride of silver, but very satisfactory work may be done when
one side only of the rubber is so coated.
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. In the formation of gold coated vulcanite, the application of chloride of silver,
substantially as described.
2. The process of uniting gold and caoutchouc which consists in coating the
the caoutchouc with chloride of silver, laying on the gold and vulcanizing the mass,
substantially as described.

page_text: 3. As a new article of manufacture, vulcanizable material coated with chloride of
silver, substantially as described.
4. As a new article of manufacture, vulcanizable gilding rubber consisting
essentially of sheet rubber coated with chloride of silver, substantially as described.
5. As a new article of manufacture, vulcanizable gilding rubber consisting of sheet
rubber, both sides of which are coated with chloride of silver, substantially as
described.
6. The process of forming vulcanizable gilding rubber herein set forth, which
consists in coating vulcanizable rubber with chloride of silver, substantially as
described
J. H. WOOD.
By A. M. & Wm. Clark,
53, Chancery. Lane, London,
Patent Agents.