Improvements in or Additions to Incandescent Gas Burners.
Year: 1896

page_text: Date of Application, 29th Jan., 1896
Complete Specification Left, 19th Aug., 1896-Accepted, 19th Sept., 1896
PROVISIONAL SPECIFICATION.
Improvements in or Additions to Incandescent Gas Burners.
We, JOSEPH WARRY, GEORGE NOEL ARCULUS, and EDWARD ALPEN ARCULUS,
trading in co-partnership as Alfred Arculus and Company, of The Etna Works,
295, Broad Street, Birmingham in the County of Warwick, Glass Manufacturers do
hereby declare the nature of this invention to be as follows:-
This invention relates to the improvements in, or additions to incandescent gas
burners and has for its object to provide a simple and efficient means whereby the
breakage of the glasses or chimneys of such burners is prevented.
In incandescent gas burners of ordinary construction the glasses or chimneys are
constantly breaking, such breakage being caused by a current of cold air passing up
the said chimney after the gas has been extinguished. When the mantle which
constitutes an important part of the burner becomes defective one side of the
chimney is heated to a greater extent than the other thereby practically disconnecting
the chimney, the passage of cold air up the chimney causes the cooling to take
place much to rapidly hence the breaking of the chimney.
By our invention these disadvantages are overcome by preventing the cool air from
so passing up the chimney. In carrying our invention into practice we make,
preferably of glass, though we may use metal or any other suitable material a cup
or bulbus shaped attachment which we fit at or near the lower end of the chimney
aforesaid, or we may fix the said attachment to any convenient part of the burner, in
such a manner as to prevent the cool air from passing up the chimney thus allowing
it to cool gradually when the gas is extinguished. We may make the said attach-
ment of any desired form or shape and of any metal or material as circumstances may
require for the purpose of carrying our invention into effect without departing from
the nature thereof.
Unted this 28th day of January 1896
WILLIAM HENRY BARACLOUGH,
36, Temple Street, Birmingham, Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in or Additions to Incandescent Gas Burners.
We, JOSEPH WARRY, GEORGE NOEL ARCULUS and EDWARD ALPEN ARCULUS,
trading in co-partnership, as Alfred Arculus and Company of The Etna Works
295 Broad Street, Birmingham, in the County of Warwick, Glass Manufacturers, do
hereby declare the nature of this invention and in what manner the same is to he
performed to be particularly described and ascertained in and by the following
statement:-
This invention relates to improvements in or addition to incandescent gas burners,
and has for its object to provide a simple and efficient means whereby the breakage
of the glasses or chimneys of such burners is prevented. In incandescent gas
burners of ordinary construction the glasses or chimneys are constantly breaking,
such breakage being caused by a current of cold air passing up the said chimney
after the gas has been extinguished.

page_text: When the mantle which constitutes an important part of the burner, becomes
defective one side or portion of the glass or chimney is heated to a greater extent
than the other side or portion thereby practically disannealing the glass or chimney
and the passage of cold air up the chimney causes cooling to take place much too
rapidly hence the breakage of the chimney by unequal contraction in the glass,
this is especially the case in positions exposed to strong draughts.
By our invention this disadvantage is overcome by controlling the passage of cold
air to the interior of the chimney in such a way as to obviate to a great extent its too
rapid cooling, this being effected by a device which checks the rush of air and also
causes it to be more or less warmed.
In carrying our invention into practice we make (preferably of glass though we
may use metal or other suitable material) a cup or bulbous shapal attachment which
we fit at or near the lower end of the chimney aforesaid, or we may fix the said
attachment to any convenient part of the burner in such a manner as to control the
passage of cold air passing up the interior of the chimney, thus allowing it to cool
gradually when the gas is extinguished. We will describe our invention by reference
to the accompanying drawings which illustrate the general principle that determines
the shape and position to be given to our device.
Figure 1 represents in elevation an ordinary incandescent gas burner with our
improved attachment shown in section connected thereto. Other shapes and sizes of
incandescent gas burners may be employed.
Figure 2 shows a vertical section and Figure 3 a plan of the attachment disconnected
from the burner.
In Figure I, A represents the burner, B the mantle, D the chimney, E the
chimney holder, and F a holder for holding the globe or shade. Below the burner
is a metal plate H known as the lighting back plate which is supplied with incan-
descent gas burners and upon which by preference we rest our improved attachment G
though we may if desirable rest the said attachment on any other part of the said
burner.
When the attachment is applied to an incandescent gas burner as shown in
Figure 1 the air passes down the space J between the globe or shade holder F
and the upper edge of the attachment K. This upper edge being somewhat higher
than the lower end of the chimney, it will be seen that the air, which first passes into
the chimney on the gas being turned out, is that which was in contact with the
outside or inside of the warm globe or shade. This, combined with the constricting
effect of the constricting passage J allows the chimney to cool so gradually as to
reduce the risk of breakage to a minimum. Even when the upper edge of the
attachment is slightly below the lower end of the chimney, this gradual cooling effect
is produced.
The attachment covers the greater portion of the metal fittings and when made in
glass causes no perceptible shadow.
We may also vary the shape in any way as circumstances may require or taste
dictate for the purpose of carrying our invention into effect without departing from
the nature thereof.
Having now described and ascertained the nature of our invention and in
what manner the same is to be performed we declare that what we claim is :-
1. In combination with incandescent gas burners the device substantially as herein
described and illustrated and for the purpose set forth.
Dated this 18th day of August 1846.
WILLIAM HENRY BARACLOUGH,
36 Temple Street, Birmingham, Agent for the Applicants.