Improved Oil Lamp or Butty.
Year: 1889

page_text: Date of Application, 11th June, 1889
Complete Specification Left, 12th Oct., 1889-Accepted, 16th Nov., 1889
PROVISIONAL SPECIFICATION.
Improved Oil Lamp or Butty.
I, SORABJI MUNCHERJI RUTNAGUR, Cotton Spinner & Weaver, residing at Grant
Road, Bombay, India, do hereby declare the nature of this invention to be as
follows:-
The most generally used form of oil lamp in India for private use as well as for
public illuminations consists of an ordinary drinking tumbler filled with cocoa-nut
oil and containing a wickholder and wick, this kind of lamp being commonly known
in India as oil "butty." This butty has serious defects, inasmuch as it cannot be
carried about without risk of spilling the oil and is quite exposed to the wind, so
that in windy weather it cannot be lit, or if lit, is quickly extinguished.
My invention consists in making the glass vessels containing the oil and wick of
such a shape that these defects are remedied. I extend the upper edge of the glass or
tumbler containing the oil, which is preferably made wider at the bottom than at the
top, into a partial globe, having an opening at the top, so that the vessel consists of
a tumbler and globe or shade combined and made in one piece. This improved oil
butty may be made of clear or coloured, variegated, ornamented, painted, partially
mirrored or otherwise decorated glass. It can be carried without risk of spilling the
oil and the light is protected against the wind by the globe or shade, there being no
current of air through the lamp.
Dated this 8th day of June 1889.
EMMOTT & Co.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Oil Lamp or Butty.
I, SORABJI MUNCHERJI RUTNAGUR, Cotton Spinner and Weaver, residing at Grant
Road, Bombay, India, 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 :-
The most generally used form of oil lamp in India for private use as well as for
public illuminations consists of an ordinary drinking tumbler filled with cocoanut oil
and containing a wickholder and wick, this kind of lamp being commonly known in
India as oil butty." This butty has serious defects, inasmuch as it cannot be
carried about without risk of spilling the oil and is quite exposed to the wind so that
in windy weather it cannot be lit or, if lit is quickly extinguished.
My invention consists in making the glass vessels containing the oil and wick of
such shape that these defects are remedied.
On the drawing appended hereunto a butty made on my improved plan is shown in
sectional elevation The lower part A of the vessel containing the oil is shaped
similar to a tumbler, preferably made wider at the bottom than at the top for the purpose
of increasing the stability of the butty and the convenience of seizing it in the hand.
The upper edge of this part A is extended into a partial globe B with an opening at
the top so that the vessel consists of a tumbler and globe or shade combined. Cis
a tube with foot D for holding the wick E, which is placed inside the vessel as in
the butties previously used. This improved butty may be made of clear or entirely
or partially coloured, variegated, ornamented, painted, ground or cut or partially
mirrored or otherwise decorated glass. It can be carried about without risk of
spilling the oil and the light is protected against wind by the upper globular par
there being no current of air through the lamp.

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
claim is,
Firstly. The construction or arrangement of oil lamp or butty hereinbefore described
and illustrated by the drawing.
Secondly. A vessel for an oil lamp or butty with a lower tumbler shaped part and
an upper globular part made in a solid piece and without through draught, substantially
as hereinbefore described and illustrated by the drawing.
Dated this 11th day of October 1889.
EMMOTT & Co.,
Agents for the Applicant.