Improvements in Supports for Mantles used for Incandescent Gas Lighting.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Supports for Mantles used for Incandescent Gas
Lighting.
I, WILLIAM THOMAS SUGG, of Vincent Works, Regency Street, Westminster,
London, S.W., Engineer, do hereby declare the nature of this invention to be
as follows:-
Much difficulty is experienced in supporting the mantles used for incandescent
gas lighting, a chief objection being that the heat is so great at the point of
suspension, that the support (generally a wire) melts and gives way.
The mantle thus drops onto the burner, and not being sufficiently strong to
support itself, gets out of place, and impairs the light.
The mantle is also very sensitive to vibrations, which, when it is carried by a
rigid support, cause a complete collapse of the inantle.
•
Now the object of this invention is to provide means whereby these incon-
veniences are overcome.
In carrying out my invention, I may employ a pendent support, or a
standard support, but in both cases it is of a flexible character, preferably con-
sisting of a coil or coils of wire.
In the pendent support, the coil is protected from the heat by a shield carried
by the support.
The mantle is carried by a hook of steatite, or other suitable material, having
a stem of suitable length, and which is secured to the end of the wire in any con-
venient manner.
Steatite does not melt under the influence of heat, besides which, it is a non-
conductor.
Thus, by using the steatite hook, the risk of the mantle falling by the melting
of the support is obviated, while the coil of wire takes up the vibrations.
Dated this 31st day of January 1899.
NEWTON & SON,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Supports for Mantles used for Incandescent Gas
Lighting.
I, WILLIAM THOMAS SUGG, of Vincent Works, Regency Street, Westminster,
London, S.W., Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
Much difficulty is experienced in sunnarting the mantles wood fam

page_text: gas lighting, a chief objection being that the heat is so great at the point of
suspension that the supporting wire melts and gives way, thus letting the mantle
drop onto the burner. The mantle not being sufficiently strong to support itself
under these conditions, tips over to one side, or otherwise gets out of place, so
that only a portion of it becomes incandescent, and thus the illuminating power
is impaired.
The mantle is also very sensitive to vibrations, which (when it is carried by
a rigid support) often cause a complete collapse of the mantle.
Now the object of this invention is to provide means whereby these incon-
veniences are overcome.
a
In carrying out my invention, I may employ a pendent support, or
standard support, but in both cases it is of a flexible character, preferably con-
sisting of a coil or coils of wire.
In the accompanying drawings I have shewn, in Fig. 1, a pendent support for
a mantle constructed according to my invention, while in Fig. 2 I have shewn
a standard support. A represents a burner of any suitable construction, and B
is the mantle, which is provided with the usual asbestos fibre loop, or other means
for suspending from a hook.
The portion C of the support from which the mantle is suspended, is formed
of steatite, to which the wire portion D is secured in any convenient manner.
This wire portion is formed with a coil or coils E to obviate vibration, as before
explained.
In the pendent form Fig. 1, this coil is protected from the intense heat rising
from the flame by a shield F of any suitable material, preferably steatite, which
is a non-conductor.
In addition to being a non-conductor, steatite does not melt under the influence
of heat (it is in fact a heat-resisting material), and thus, by using steatite for
that portion of the support which comes into contact with the flame, the risk of
the mantle falling by the melting of the support is obviated.
Although I have mentioned particularly steatite, because it is the most con-
venient material for use in my improved supports, I would have it understood
that I do not intend to confine myself to this material as I may use any other
material which has the same characteristics, such, for instance, as ground asbestos
moulded to a suitable and convenient shape.
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:-
1. A support for a mantle used in incandescent gas lighting, consisting of a
flexible wire portion and a heat-resisting non-conducting portion, as herein shown
and described.
2. The combination with a pendent support for a mantle used in incandescent
gas lighting, and composed of a flexible wire portion, and a heat-resisting non-
conducting portion, of a shield placed below the flexible part of the wire portion,
as herein shown and described, and for the purpose set forth.
Dated this 30th day of October 1899.
NEWTON & SON,
Agents for the Applicant.