Improvements in Pastes and Real Stones used for Jewellery Purposes.
Year: 1892

page_text: Date of Application, 10th Oct., 1892
Complete Specification Left, 10th July, 1893-Accepted, 12th Aug., 1893
PROVISIONAL SPECIFICATION.
Improvements in Pastes and Real Stones used for Jewellery
Purposes.
WILLIAM KILS BY 6 Pomona Place Bath Road Harlington Middlesex do
hereby declare the nature of this invention to be as follows:-—
This invention has for its object the improvements in pastes & real stones used for
jewellery purposes such as those known as Paris diamonds and real stones either in
the loose or when set in the jewellery. This I effect by the following means, in
the case of paste diamonds, they have foil first made to adhere to the back of them
and afterwards I paint it with copal varnish and thoroughly dry it, this varnish
protects the foil from the atmosphere and makes it impervious to water & methylated
spirit thereby protecting it. The varnish may have other substances mixed with
it to give it a denser body if required. In the case of pale real stones I paint them
to the desired tint and afterwards apply the copal varnish or I mix the color with
the varnish & apply to the back of the stones and dry them or I put the colored
varnish between 2 pieces of stone & cut & polish them. The stones or pastes may
be first set in the jewellery & the uncolored or colored varnish afterwards applied
as desired.
Dated this 10th day of October 1892
Improvements in Pastes and Real Stones used for Jewellery
Purposes.
WILLIAM KILSBY 6 Pomona Place Bath Road Harlington Middlesex, 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 the improvements in pastes and real stones used
for jewellery purposes such as those known as Paris diamonds and real stones either
in the loose or when set in the jewellery. This I effect by the following means, in
the case of paste diamonds they have foil first made to adhere to the back of them
and afterwards I paint it with copal varnish and thoroughly dry it. The varnish
protects the foil from the atmosphere and makes it impervious to water and
methylated spirit thereby protecting it. The varnish may have other substances
mixed with it to give it a denser body if required. In the case of pale real stones
I paint them to the desired tint and afterwards apply the copal varnish or I mix
the color with the varnish afterwards apply the copal varnish or I mix the color
with the varnish and apply it to the back of the stones and dry them or I put the
colored varnish between 2 pieces of stone and cut and polish them. The stones
or pastes may be first set in the jewellery and the uncolored or colored varnish
afterwards applied as desired. In the case of colored pastes such as emeralds
rubies &c. the colored foil is first made to adhere to the back of them and the
colored varnish applied to suit the color of the paste. The copal varnish may have
amber, silver, or other substances mixed with it as desired.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is.
"The use of copal varnish either in a pure state or mixed with amber silver or
other substances or colors as hereinbefore described as desired."
Dated this 10th day of July 1893.
WILLIAM KILSBY.