Improvements in Automatic Gas Igniting Devices for Incandescence and other Gas Lamps.
Year: 1898

page_text: Date of Application, 28th Jan., 1898
Complete Specification Left, 18th Nov., 1898-Accepted, 7th Jan., 1899
PROVISIONAL SPECIFICATION.
Improvements in Automatic Gas Igniting Devices for Incandescence
and other Gas Lamps.
We, JULIUS FRIEDRICHI CHARLES JÜRGENS, of 35, Oelkersallee, Altona, Ger-
many, Mechanical Engineer, and THE AUTOMATIC UNIVERSAL GAS-LIGHTER
LIMITED, of Throgmorton House, 15, Copthall Avenue, in the City of London,
do hereby declare the nature of this invention to be as follows:-
This invention has reference to a construction of igniting device for auto-
matically igniting the gas supplied to the igniting tube of an incandescence or
other gas burner whereby the cost of construction of such device is considerably
reduced, the automatic igniting action of the igniting body improved and the
liability of such body to be damaged by abrasion by the holder in which it is
held is obviated, the construction moreover being such that the device can be
readily applied to and removed from the igniting tube by an unskilled person.
According to our invention the automatic igniting body proper consisting for
example of a small pellet of porous material charged with finely divided metal
such as platinum or the like and having one or more filaments of metal such as
platinum depending therefrom and in contact therewith is mounted upon a small
block or piece of refractory material that is also a bad conductor of heat for
example arc light carbon, by which it can be held in a suitable carrier that is
adapted to be readily applied to and removed from the top of the igniting tube
of the gas burner which tube preferably extends from the burner cock so that
the supply of gas thereto is controlled by the cock plug. In one construction
the block of refractory material consists of a small centrally perforated cylinder
of carbon secured to the igniting body by a layer of suitable plastic material for
example kaolin or fire clay, and by filaments of platinum wire which are passed
through and around the block and body and have their ends tied or twisted
together and arranged to depend or project into the path of the gas escaping from
the igniting tube. The carrier comprises a vertical spring clip in which the
cylinder of carbon can be readily placed so as to be supported horizontally thereby
and which is mounted in a holder connected by a cross piece to a vertical tube
that is adapted to slip over and rest upon the upper end of the igniting tube
and has a small vertical gas exit opening through which gas can flow from the
igniting tube and impinge upon the igniting body which will thereby be heated
to a sufficiently high temperature to render the metal filaments red hot and ignite
the escaping gas. The spring clip is preferably made vertically adjustable in the
holder by which it is directly carried.
1000

page_text: Improvements in Automatic Gas Igniting Devices for Incandescence
and other Gas Lamps.
We, JULIUS FRIEDRICH CHARLES JÜRGENS, of 35, Oelkersallee, Altona, Ger-
many, Mechanical Engineer, and THE AUTOMATIC UNIVERSAL GAS-LIGITTER
LIMITED, of Throgmorton House, 15, Copthall Avenue, in the City of London,
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 has reference to an improved construction of igniting device
for automatically igniting the gas supplied to the igniting tube of an incan-
descence or other gas burner whereby the cost of construction of such device is
considerably reduced, the automatic igniting action of the igniting body im-
proved, and the liability of such body to be damaged by abrasion by the holder
in which it is held obviated, the construction moreover being such that the
device can be readily applied to and removed from the igniting tube by an un-
skilled person.
Referring to the accompanying drawings,
Figs. 1 and 2 are elevations at right angles to each other, showing an improved
igniting device according to this invention which can be readily applied to and
removed from the igniting tube of a gas burner.
The igniting body proper consists of a small pellet or pill 1 of porous material
charged with spongy platinum and provided with platinum filanients 2; 3 is a
block of refractory material, preferably in the form of a small centrally per-
forated cylinder of carbon or pipe clay, secured to the igniting body 1 as by a
layer of suitable plastic material, for example kaolin or fire clay, and by the
filaments 2 of platinum wire which are passed through and around the block 3
and body 1 and have their ends tied or twisted together and arranged to depend
or project, when in use, into the path of the gas escaping from the igniting tube.
4, 4 are vertical spring arms between which the cylinder 3 is placed so as to be
supported vertically thereby and without subjecting the igniting body 1 to
pressure. The arms are formed in one with a slightly tapering vertical tube 5
that is adapted to slip over and rest upon the upper end of the igniting tube and
has a vertical gas exit opening through which gas can flow from the igniting
tube and impinge upon the igniting body which will thereby be heated to a
sufficiently high temperature to render the metal filaments 2 hot enough to
ignite the escaping gas. The filaments 2 are attached to the tube 5 and are
preferably in the form of spirals, as shown, extending from the gas exit opening
in the tube to the pellet or pill 1.
Figs. 3 and 4 are similar views to Figs. 1 and 2 illustrating a modified con-
struction of igniting device in which the cylinder 3 with igniting body 1 is
held in a horizontal attitude between spring arms or clips 4* that are connected
by a cross piece 5ª to the tube 5.
By constructing igniting devices in the manner described, a much smaller
igniting body proper 1 can be effectively employed, an intimate and good heat
conducting contact can be obtained between the said body and the platinum
filaments 2, and all liability of abrasion of the igniting body 1 by the carrier
obviated, whilst the devices can be readily applied.
Having now particularly described and ascertained the nature of the said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:-
1. An automatic gas igniting device comprising a pellet of porous material

page_text: charged with finely divided metal such as spongy platinum and provided with
filaments of metal, a block of refractory material, such as carbon that is also a
bad conductor of heat, upon which the igniting body is mounted, and a carrier
comprising a vertical tube adapted to slip over and rest upon the upper end
of an igniting tube and spring arms or clips adapted to hold the block of re-
fractory material so that the depending filaments project into the path of gas
escaping from the said tube, substantially as described for the purposes specified.
2. The improved automatic gas igniting devices shown in and described with
reference to Figs. 1 and 2, and to Figs. 3 and 4 of the drawings annexed.
Dated this 18th day of November 1898.
For the Applicant,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C.,
Chartered Patent Agent.