Improvements in and in connection with Glasses, Globes, Chimneys, and the like, for use with Gas, Oil, and Electric Light.
Year: 1896

page_text: Date of Application, 14th Doc., 1906
Complete Specification Left, 6th Sept., 1897-Accepted, 9th Oct., 1897
Complete Specification Left, 6th Sept., 1897-Accepted, 9th Oct., 1897
Improvements in and in connection with Glasses, Globes, Chimneys,
and the like, for use with Gas, Oil, and Electric Light.
I, WILLIAM SHARP of 68 Melody Road, Wandsworth, in the County of London,
"Inventor do hereby declare the nature of this invention to be as follows:-
This Invention consists in the application of different dressings or coatings
composed of various oxides, formed into a uniform paste, with solutions composed
of various Nitrates or Acetates. The dressings or coatings are applied to Glasses,
Globes, Chimneys &c. for the purpo-e of more thoroughly diffusing the light and
greatly adding to the general effect of such light.
SPECIFICATION.
One method of preparing a coating or dressing for the aforementioned purposes
is as follows:-To a solution consisting of six ounces of Nitrate of Potash, with
four ounces of Borax & one pint of Water is added a sufficient quantity of Oxide
of Magnesium to form a thin paste, which after being thoroughly ground &
mixed, is passed through a fine strainer.
The Glasses &c. to be coated are then passed through the mixture & after
removing that which adheres to the outside, they are placed in such a position that
they may thoroughly drain & dry, when they may afterwards be subject to a
beat sufficient to fuse the Nitrate of Potash & thus more securely fix the coatings.
In the place of the coating prepared as described, it may be advisable to use
Zirconia, Calcium, Aluminia or other of the Oxides, either separately or in combina-
tion with Magnesium, mixed in suitable proportions & formed into a uniform
paste with solutions prepared from the Nitrates or Acetates.
The Coatings may be fixed to the inside of the Glasses &c. by merely dipping
as already explained, or it may be fused upon the surface at the time the Glasses
are manufactured, or it may have another coating of Glass blown over it.
Dated this the Fourteenth day of December 1896.
WILLIAM SHARP.
Improvements in and in connection with Glasses, Globes, Chimneys,
and the like, for use with Gas, Oil, and Electric Light.
I, WILLIAM SHARP, of 68 Melody Road, East Hill Wandsworth, in the County
of London, "Inventor" do hereby declare the nature of this invention and in what
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page_text: manner the same is to be performed, to be particulary described and ascertained
in and by the following statement:-
This Invention consists in applying different coatings or dressings to Glasses,
Globes, Chimneys & the like for use with Gas, Oil, & Electric Light, for the
purpose of more thoroughly diffusing the light & greatly adding to the general
effect of such light. It is well known that the Ground & other Glasses now in use
for the purpose of softening & diffusing the light, absorb a very large per centage
of the light emitted. Now my object is to produce Glasses, which will while giving
complete diffusion, considerably lessen the loss of light, as at present so sustained.
In carrying out my invention I propose to apply a coating or dressing to the
inside of such Glasses, Globes & Chimneys composed of one or more of the
following Oxides, viz:-Aluminium Oxide, Calcix Oxide, Magnesium Oxide or
Zinc Oxide or I may use Calcic Carbonate, Calcic Sulphate, or Kaolin, either
seperately, or in combination with one or more of the Oxides
Either of the aforementioned Oxides or the Calcic Carbonate, the Calcic Sulphate
or Kaolin, as the case may be, is formed into a uniform paste, with a Solution
composed of either Borax, Nitrate of Potassium, Sulphate of Magnesium or
Nitrate of Potassium & Borax combined, such solutions which are for the purpose
of fixing the Oxides &c. to the Glass, being composed as follows:-In preparing
the Solution of Borax I take Two ounces of Borax, over which I pour one quart of
Boiling Water, well stir & allow it to cool, when it is ready for use.
The Solution of Magnesium is prepared as follows:-To Four ounces of
Magnesium Sulphate, I add Three pints of Boiling water & allow it to cool.
The Nitrate of l'otassium Solution is prepared as follows:-To Four ounces of
the Nitrate of Potassium I add Three pints of Boiling water & allow it to cool.
The Solution of Borax & Nitrate of Potassium is prepared as follows:-I take
One ounce of Borax & one ounce of Nitrate of l'otassium, over which I pour one
Quart of Boiling Water, well mix, & allow it to cool.
The general method to be adopted in preparing the mixture to be used as a
dressing is as follows: Take a sufficient quantity of either of the Oxides afore-
mentioned, viz: Aluminium Oxide Calcic Oxide, Magnesium Oxide or Zinc
'Oxide, or the Calcic Carbonate, the Calcic Sulphate or Kaolin & form into a thin
paste with either of the four aforementioned Solutions. The paste so formed, is
to be then thoroughly ground, after which more of the Solution is to be added
sufficient to enable the mixture (after being well stirred) to be passed through a
very fine strainer, when it will be ready for applying to the Articles to be dressed.
In applying the coatings or dressings to the Glasses. They may (after having
been thoroughly cleaned) be passed through a bath containing the mixture &
the surplus removed & allowed to drain, or the mixture may be allowed to run
over the Articles, or it may be applied with a soft brush & then thoroughly dried
in an oven or by other suitable means.
When a more permanent fixing is desired, than can be obtained by the fore-
going method of drying, the Article after being dressed or coated, is subjected to
a heat sufficient to permanently fix the dressing or Coating.
The coatings may also be covered with a thin glass to protect them (instead of
permanently fixing them) if desired.
Either of the aforementioned Oxides or the Calcic Carbonate, the Calcic Sulphate
or the Kaolin, may be used seperately or mixed together, as for instance the
Magnesium Oxide may be used with Calcic Carbonate, or with Zinc Oxide & Calcic
Sulphate, or with Calcic Oxide & Aluminium Oxide, in any proportion, & the
whole or any of the Oxides & the Calcic Carbonate, the Calcic Sulphate or the
Kaolin, may be used together or separately & formed into the mixture composing
the dressing or coating with either of the four aforementioned Solutions of Borax
Magnesium Sulphate, Nitrate of Potassium or. Nitrate of Potassium & Borax
combined.

page_text: When a colored dressing is desired I may add to the mixture Colored earths or
any other suitable coloring matter to effect the purpose.
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:-
First. A process for producing Glasses, Globes, Chimneys & the like for the
purpose of thoroughly diffusing the light, by dressing such Glasses, Globes &
Chimneys, with a mixture composed of the following Oxides i.e., Aluminium Oxide,
Calcic Oxide, Magnesium Oxide & Zinc Oxide or Calcic Carbonate, Calcic Sul-
phate or Kaolin, mixed either seperately or together in any proportions, with
solutions composed of Borax, Magnesíum Sulphate, Nitrate of Potassium, or
Nitrate of Potassium & Borax combined.
2nd. The permanent fixing of such coatings or dressings, by subjecting such
glasses, Globes & Chimneys to a heat sufficient to effect this purpose.
3rd. The covering of the coating or dressing with another glass.
4th. The colouring of such Coatings or dressings, by the addition of Colored
Earths, or other suitable coloring matter substantially as herein set forth &
described.
Dated this Bourth day of Sentember 1897