Rendering same Luminous.
Year: 1884

page_text: Rendering same Luminous.
I HENRIETTA SARAH WHITAKER of The Manse, Sedloscombe Rd. St Leonards
in the County of Sussex Widow Lady do hereby declare the nature of my
Invention for IMPROVEMENTS IN TUMBLERS & OTHER DRINKING GLASSES BY
RENDERING SAME LUMINOUS, to be as follows:—
My Invention relatos to an improvement in Tumblers and such by rendering
saine luminous, so as to be visible in the dark. The luminosity being of a practi-
cally useful duration as to be serviceable throughout a long winter's night after
having been exposed to light during the preceding day-& so continuing to act
night after night, for a long time. The practical utility consisting in the tumbler
of water being discernible, by child, invalid or others-throughout the night without
the necessity of the ordinary gas or night light that so vitiates the air of a sleeping
chamber or without the necessity & danger of striking matches. I tako an ordinary
glass tumbler having a deep cavity at its base, to which base I apply Sulphide of
Calcium mingled with a suitable varnish as damar or copal or I apply Sulphide of
Calcium as made by the Pioneer Paint Company Limited 54 Aldermanbury Postern,
London, EC. three parts in weight mingled with one part Gelatine and then adding
three times the weight of hot water. I apply several coats to the cavity in foot
of tumbler and when dry waterproof same with Copal Varnish or Bichromate of
Ammonia Solution and thus or with other suitable fixing or preserving solution
I bring about the same result-or I place over the luminous compound a disc of
glass and cement same, so as not to interfere with the steady standing of the
tumbler.

page_text: Rendering same Luminous.
I HENRIETTA Sarah WhitakER, Widow of The Manse, Sedlescombe Road,
St. Leonards, in the County of Sussex, do hereby declare the nature of my
Invention for IMPROVEMENTS IN TUMBLERS AND OTHER DRINKING GLASSES BY
RENDERING SAME LUMINOUS, 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 an improvement in Tumblers and such by rendering
same luminous, so as to be visible in the dark. The luminosity being of a
practically useful duration as to be serviceable throughout a long winter's night
after having been exposed to light during the preceding day; and so continuing to
act night after night for a long time. The practical utility consisting in the
tumbler of water being discernible by.child, invalid, or others throughout the night,
without the necessity of the ordinary gas or night light that so vitiates the air of
a sleeping chamber, or without the danger or necessity of striking matches.
I take an ordinary glass tumbler having a deep cavity at its base, to which base
I apply Sulphide of Calcium, mingled with a suitable varnish as damar or copal,
or I apply Sulphide of Calcium as inade by the Pioneer Paint Company Limited,
54 Aldermanbury Postern London, E.C. three parts in weight mingled with one
part of Gelatine, and then adding three times the weight of hot water. I apply
several coats to the cavity in foot of tumbler, and when dry, waterproof same with
copal varnish or bichromate of Ammonia Solution and thus or with other suitable
fixing or proserving solution I bring about the same result, or I place over the
luminous compound, a disc of glass and cement same, so as not to interfere with
the steady standing of the tumbler.
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
.
I Rendering Tumblers luminous of a useful and enduring luminosity, substan-
tially as hercinbefore described.