Improvements in or relating to "Mantle" Supports for Incandescence Burners.
Year: 1898

page_text: Date of Application, 10th Oct., 1898- Accepted, 26th Nov., 1898
COMPLETE SPECIFICATION.
Improvements in or relating to "Mantle" Supports for Incandescence
Burners.
A Communication from LA SOCIETE GENERALE D'INCANDESCENCE PAR LE PETROLE,
of Brussels, in the Kingdom of Belgium.
I, ALFRED JULIUS BOULT, Chartered Patent Agent of 111 Hatton Garden, in the
County of Middlesex, 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:-
"
This invention relates to a "mantle support for incandescence burners
particularly for burners used on petroleum lamps, designed so that it can be readily
placed on or removed from the upper portion of the burner and is capable of main-
taining the mantle in a stable position, said mantle support constituting at the same
time a device for dividing and breaking up in a uniform manner the air admitted
laterally at the bottom of the flame.
A removable mantle support according to this invention is represented in Figures
1 and 2 of the accompanying drawing:
Figure 2 being a section of the lower part.
As may be seen from the drawing, the device consists of a slightly conical base
part a, made of a metallic netting and preferably provided at its top and bottom
edges with smooth metal rings or binders 6 and 6. These rings being placed over
the edges of the net and secured in any ordinary manner.
Their connection to the
net may be rendered more secure by rivets, if desired. The rod for supporting
the mantle is preferably secured to the lower ring 61 and to the net a, preferably
at the joint of the adjacent edges of the metallic netting a.
the middle of the height of the base the rod c is bent out to an extent sufficient to
At about
enable the bottom part of the mantle to be placed over the cone a.
spindle is made into a hook c¹ (for holding the mantle) which is arranged in the
At the top the
axis of the cone a.
The mantle is placed above the conical base a and afterwards raised in order to
suspend it on the hook c'. It is thus held in an absolutely secure fashion, and the
mantle support (which can be lifted or moved by means of the rod c) can be easily
manipulated without danger of injuring or destroying the mantle.
The length of the supporting spindle is determined for each size of burner or
mantle support, it does not therefore vary for the same apparatus, whereby the
necessity of regulating the position of the mantle as to certain height, is avoided.
The base could be also made of perforated sheet metal but its construcion of
metallic netting is considered an important feature of the invention, as such netting
being a worse conductor of heat than perforated sheet metal, transmits to the lower
portion of the burner less heat than would a perforated metal band, which is a
point of great importance in petroleum burners. Besides, netting divides and
breaks up the air current passing through the cone in a better and more uniform
manner and thus ensures a very still flame.

page_text: Having now particularly described and ascertained the nature of the said
invention as communicated to me by my foreign correspondents and in what manner
the same is to be performed, I declare that what we claim is:-
:―
1. A removable mantle-support for incandescence burners, comprising a conical
base of metallic netting or perforated metal provided with a spindle having a hook
for suspending the mantle, the cone serving as a support for the lower portion of
the mantle and as a device for dividing and breaking up the air current admitted
at the bottom of the flame.
2. A construction of mantle support of the kind described in which the base of
metallic netting is provided with two rings or binders b b covering the edges jof
the netting.
3. A construction of mantle support of the kind described in which the support-
ing spindle secured to the cone is bent out so as to leave between it and the cone a
sufficient free space for receiving the lower edge of the mantle.
4. A mantle support for incandescence burners substantially as described and
illustrated in the accompanying drawings.
BOULT & WADE.
Agents for the Applicant.