Improvements in Regenerative Gas Lamps.
Year: 1890

page_text: Date of Application, 14th May, 1890
Complete Specification Left, 10th Feb., 1901 Accepted, 14th Mar
1801.
Complete optrination
PROVISIONAL SPECIFICATION.
Improvements in Regenerative Gas Lamps.
I, FREDERICK SIEMENS, of No. 10, Queen Anne's Gate, Westminster, in the
County of Middlesex, Engineer, do hereby declare the nature of this invention to
be as follows
My invention relates to regenerative gas lamps of that kind which present a
nearly horizontal flame extending from the middle outwards and then upwards, the
products of combustion ascending to a chimney by channels which are crossed by
other channels admitting air to supply the flame.
The air thus supplied descends a central channel surrounding a number of
circularly arranged small gas tubes which descend from a gas chamber above. A
little below the lower ends of these gas tubes is a deflecting button by which the
flame is deflected outwards, the outer ends of the flames turning upwards through
an annular passage into the channels leading to the chimney. This annular passage
surrounds a ring of porcelain which is loosely supported on the wall of the central
air passage and is slit across so as to relieve it from strains resulting from expansion
and contraction. The small gas tubes extend a little above the bottom of the gas
chamber from which they issue, so that they are not liable to be obstructed by
deposit matters that may descend from above through the central gas supply pipe.
The wall surrounding the central air passage may have perforations through it
allowing a portion of the air to enter the passages for the products of combustion
and keep the walls of these passages from becoming overheated.
Dated this 14th day of May 1890.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Regenerative Gas Lamps.
1, FREDERICK SIEMENS, of No. 10, Queen Anne's Gate, Westminster, in the
County of Middlesex, Engineer, 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:-
My invention relates to regenerative gas lamps of that kind in which a nearly
horizontal flame extends from the middle outwards and then upwards, the products
of combustion ascending to a chimney by channels which are crossed by other
channels admitting to the flame a supply of air heated by conduction through the
walls of those channels.
Fig. 1 of the accompanying drawings is a vertical section on the line X X of
Fig. 2 which is a sectional plan on YY of Fig. 1, and Fig. 3 is a plan on Z Z
of Fig. 1. G is the gas pipe supplying a chamber G¹ whence descend a number
of tubes B circularly arranged. The upper ends of the tubes B extend a little
above the bottom of the chamber G₁, so that they are not liable to become
obstructed by deposit matters that may descend along the pipe G.
A little below the lower ends of the tubes B there is a deflecting button, disc
or star, D which may be carried as shewn by a central rod D¹ extending down
from the bottom of the chamber G'; but this button, disc or star, may be supported
otherwise than in the manner shewn, in some cases, it may be entirely dispensed
with. The central air passage C terminates at the bottom with an internal
Hange C having holes through it for passage of the tubes B and outside each of
those tubes a hole for passage of air.

page_text: At the lower end of C is loosely supported a porcelain ring R, which is preferably
slit across at one part to relieve it. from strains resulting from expansion and
contraction which might otherwise crack it. The ring R constitutes a reflector
above the flame, and another porcelain ring R¹ constitutes another reflector outside
the flame.
The products of combustion pass up the chamber S to the chimney F and
air, which enters by cross channels A, becomes heated and descends within the
central casing C to supply the flame. A little additional air may be made to enter
by apertures a into the interior of the globe H and, sweeping round therein
towards the flame, to keep the globe cool. The wall C of the central air channel
may be perforated with a number of holes through which some of the air from the
central channel can enter the passages for the products of combustion and keep the
walls of those passages from becoming overheated. The arrows in Fig. 1 indicate
the courses followed by the gas, the air and the products of combustion.
Having now particularly described and ascertained the nature of, this inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:-
A regenerative gas lamp, having a burner consisting of a number of
gas tubes
circularly arranged within, a central descending air passage, and terminating a
little below it, so that the flame flows outwards and turns upwards, the products
of combustion ascending to a chimney through a chamber crossed by channels
admitting air to supply the flame, substantially as described.
Dated this 13th day of February 1891.
ABEL & IMRAY,
Agents for the Applicant.