AN IMPROVED REGENERATIVE GAS LIGHTING APPARATUS
Year: 1883

page_text: LETTERS PATENT to Anthony Spencer Bower of St Neots Engineer in the
County of Huntingdon and Thomas Thorp of Whitefield in the County of
Lancaster Architect for an Invention of AN IMPROVED REGENERATIVE GAS
LIGHTING APPARATUS
PROVISIONAL SPECIFICATION left by the said Anthony Spencer Bower
and Thomas Thorp at the Office of the Commissioners of Patents on the
31st July 1883.
AN
ANTHONY SPENCER BOWER of St Neots, Engineer, in the County of Huntingdon
and THOMAS THORP of Whitefield in the County of Lancaster Architect
IMPROVED REGENERATIVE GAS LIGHTING APPARATUS"
The object of our Invention is to increase the amount of light obtained from the
combustion of gas.
In carrying out our Invention wo make use of a central gas supply pipe from
above or below to which is attached a ring shaped burner having holes in its
periphery for the outlet of the gas from its interior: on each side of the holes
may be movable flanges screwed on the burner for the purpose of increasing or
decreasing the pressure at which the gas is delivered which is accomplished by
causing the flanges to approach each other or vice versa. The burner may be
constructed wholly of steatite or other suitable material or the portion required to
be perforated and from which the gas issues may be of steatite or other non-
conducting material secured between two flanges. Around the gas supply pipe
and above the burner is fixed a regenerator made up of vertical tubes secured to
metal plates through which the products of combustion pass on their way to a
chimney. To this primary regenerator is attached a short tube immediately above
the burner and in this tube is a plate having numerous perforations and acting as
a guide for the supply pipe or if the gas is supplied from below for a spindle
extending from the burner upward and on which the primary regenerator may
rest. To the outer and lower edge of the tube may be secured a disc of refractory
material

page_text: To the lower plate of the primary regenerator and above the burner is fixed a
perforated annular curved plate for deflecting the flame and products of combustion
inward, between this deflector and the lower plate of the regenerator near their
outer edges are a number of projections or plates: the chamber in which these are
contained we denominate the secondary regenerator. Below the burner and
around the central gas pipe, if supplied from below may be secured a tube of larger
diameter than the gas supply pipe having perforations at its lower end communi-
cating with the atmosphere and ending in a bell-mouth near and below the burner
for the purpose of supplying a small quantity of air for combustion to the gas
immediately it issues from the burner: instead of this tube from below when the
gas is supplied from above the central gas supply pipe and burner may be
increased in diameter and a tube carried from the primary regenerator in the
interior of the gas supply tube to the under side of the burner where a deflector
may be placed to cause the air-to impinge upon the issuing gas: or a pipe secured
to the burner and ending in a bell mouth under the same may be carried down-
ward communicating through the globe with the atmosphere but where small
quantities only of gas are required to be consumed the above appliances for causing
a small quantity of air to be supplied for combustion with the gas immediately it
issues from the burner may be dispensed with.
The flame is enclosed in a globe which when the gas is supplied from below may
rest in a holder sliding on the air supply pipe: the upper edge of the globe bearing
against a ring of asbestos or other refractory yielding material secured to the
outer edge of the secondary regenerator. When gas is supplied from above, the
globe may be hinged or otherwise secured to the apparatus.
When the gas is burning, the products of combustion pass through the tubes of
the primary regenerator into the chimney and these creating a partial vacuum
cause the air for combustion to pass from the outside through the secondary
regenerator between the regenerator-tubes-and down-the-central tube around the
gas supply in a highly heated state to the inside of the flamic.-The outer or under
side being supplied with air also in a highly heated state from the secondary
regenerator direct into the globe, as also with air either from above or below as
before described or the whole of the air for combustion may pass direct into the
primary regenerator and the portion required for the outer side of the flame may
pass thence through the secondary regenerator into the globe.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent_filed
by the said Anthony Spencer Bower and Thomas Thorp in the Patent Office
on the 20th January 1884.
ANTHONY SPENCER BOWER of St Neots, Engineer, in the County of Huntingdon,
and THOMAS THORP, of Whitefield in the County of Lancaster, Architect.
IMPROVED REGENERATIVE GAS LIGHTING APPARATUS
"
AN
The object of our Invention is to increase the amount of light obtained from thọ
combustion of gas.
In carrying out our Invention we may make use of a central gas supply pipe
from above or below to which is attached a ring shaped burner having holes in its
periphery for the outlet of the gas from its interior: on each side of the holes may
bo movable flanges screwed on the burner for the purpose of increasing or
decreasing the pressure at which the gas is delivered which is accomplished by
causing the flanges to approach each other or vice versa. The burner may be
constructed wholly of steatite or other suitable material or the portion required
to be perforated and from which the gas issues may be of steatite or other
non-conducting material secured between two flanges. Around the gas supply
pipe and above the burner is fixed a regenerator made up of vertical tubes secured
to metal plates through which the products of combustion pass on their way to
a chimney. To this primary regenerator is attached a short tube immediately
above the burner and in this tube is a plate having numerous perforations and
acting as a guide for the supply pipe or if the gas is supplied from below for a
spindle extending from the burner upward and on which tho primary regenerator
may rest. To the outer and lower edge of the tube may be secured a disc of
refractory material.
To the lower plate of the primary regenerator and above the burner is fixed a
perforated annular curved plate for deflecting the Hame and products of combustion
inward; between this deflector and the lower plate of the regenerator, near their
outer edges are a number of projections or plates: the chamber in which these are
contained we denominate the secondary regenerator. Below the burner and
around the central gas pipe, if supplied from below, may be secured a tube of
larger diameter than the gas supply pipe having perforations at its lower end
communicating with the atmosphere and ending in a bell mouth near and below
the burner for the purpose of supplying a small quantity of air for combustion to
the gas immediately it issues from the burner: instead of this tube from below
when the gas is supplied from above, the central gas supply pipe and burner may
be increased in diameter and a tube carried from the primary regenerator in the
interior of tho gas supply tube to the under side of the burner where a deflector
may be placed to cause the air to impinge upon the issuing gas or a pipe secured to
the burner and ending in a bell mouth under the saine may be carried downward
communicating through the globe with the atmosphere but where small quantities
only of gas are required to be consumed the above appliances for causing a small
quantity of air to be supplied for combustion with the gas immediately it issues
from the burner may be dispensed with.
The flaine is enclosed in a globo which when the gas is supplied from below may
rest in a holder sliding on the air supply pipe: the upper edge of the globe bearing
against a ring of asbestos or other refractory yielding material secured to the outer
edge of the secondary regenerator. When gas is supplied from above the globe
may be hinged or otherwise secured to the apparatus,
When the gas is burning the products of combustion pass through the tubes of
the primary regenerator into the chimney and cause the air for combustion to pass

page_text: .
from the outside through the secondary regenerator between the regenerator tubes
and down the central tube around the gas supply in a highly heated state to the
inside of the flame. The outer or under side being supplied with air also in a
highly heated state from the secondary regenerator direct into the globe as also
with air either from above or below as before described or the whole of the air for
combustion may pass direct into the primary regenerator and the portion required
for the outer side of the flame may pass thence through the secondary, regenerator
into the globe.
And in order that our Invention may be fully understood and readily carried
into effect we will proceed to describe the accompanying Sheet of Drawings,
reference being had to the figures and letters marked thereon.
Figure 1 is a sectional elevation and Fig. 2 a plan, the part C looking upward
and the part D looking downward on the line A B Fig. 1 of our improved
suspended lamp or regenerative gas lighting apparatus. Fig. 3 is an elevation,
partly in section of another form of suspended lamp and Fig. 4, is a similar view
of a lamp for table use or for other purposes when the gas is supplied from below.
Similar letters refer to similar parts throughout the several views.
In Figs. 1 and 2.-u is the central gas supply pipe to the lower part of which is
secured a larger pipe or tube al communicating with the interior of a ring shaped
burner b with holes in its periphery for the outlet of gas: the burner b may be
constructed wholly of steatite or other suitable material or the portion required
to be perforated and from which the gas issues may be of stentite or other non-
conducting material secured between two flanges c, the upper flange being secured
to the bottom of the tube a'. Around the gas supply pipe and above the burner
is fixed a regenerator made up of vertical passages or tubes d made with or secured
to metal plates d² d³ through which the products of combustion pass on their way
to the chimney d. To this primary regenerator & and below it is fixed a tubo d¹
above the burner b, and at the bottom of this tube d is a plate-e having-numerous
perforations and acting as a guide for the supply pipe a'. To the outer and lower
edge of the tube is screwed a disc feither made of or covered with refractory
material which supports the plate e. To the lower part d³ of the primary
regenerator near the outer edge is fixed a perforated annular curved plato g which
deflects the flame and products of combustion inward: between this deflector g
and the lower plate ds near their outer edges are a number of projections or plates
h.h these plates project between one another, those marked h being fixed to the
plate d³ and those marked h¹ to the deflector g. The plates. and h¹ are contained
in a chamber i formed between the primary regenerator & and the deflector g,
open to the upper part of the primary regenerator d and to the atmosphere at i¹:
we name this chamber i tho secondary regenerator. An air supply tube k
perforated at the lower end is fitted inside the gas supply pipe al and secured to a
perforated boss at the bottom of the gas supply pipe a: the tube k is open at the
upper end to and conducts air from the primary regenerator d to the under side of
the burner b where a deflector is placed to cause the air to impinge upon the
issuing gas. The globo o is supported by the globe holder x which bears against
the deflector g: the globe o bears against a ring of asbestos n or other refractory
yielding material secured in the globe holder a
Fig. 3 shows a modified form of suspended lamp in which instead of enlarging
the gas supply pipe a¹ and the burner band employing a tube k to supply a small
quantity of air for combustion to the gas immediately it issues from the burner,
we use instead a pipe or tube m secured to a tube 2 which may form the lower
flange of or be secured to the burner b: the tube m terminates in a bell mouth at
the end below the burner: the tube p is perforated and open below to the atmo-
sphere through spaces m¹ in the handle o¹ of the globe o: the globe o and handle o¹
are held in their place by a tube q which surrounds the tube m and is secured to
it by a bayonet or other joint: the rim or upper edge of the globe o bears
against a loose ring n of any suitable material fitted to the outer edge of the
defloctor g.

page_text: Fig. 4 shows a lamp for table use or for other purposes in which the gas is
supplied from below through the tube a and instead of employing either the tubo k
or the tube p to conduct air to the burner b, we use a tube j secured below the
burner to and around the pipe a: this tube j has perforations at its lower end
communicating with the atmosphero and ends in a bell mouth near and below the
burner b. The flame is enclosed in a globe o which rests in a holder q' screwed on
the tube q which surrounds the tube 7 and is secured to it by a bayonet or other
joint.
The gas may be lighted by lowering the globe o and when the gas is burning
the products of combustion pass through the tubes of the primary regonerator &
into the chimney d (as indicated by the arrows on the drawings) and cause the
air for combustion to pass from the outside at ¹ through the secondary regenerator
or heating chamber i between the regenerator tubes d (as indicated by the arrows)
and down the central tube d' in a highly heated state to the inside of the flame.
The outer or under side of the flame is supplied with air also in a highly heated
state, from the secondary regenerator i directly into the globe o and also with air
either from above through between the tubes d of the primary regenerator and
down and out through the perforations in the tube , see Fig. 1; or from below
through the spaces in the handle o¹ perforations in the tube and out of the bell
mouth at the end of the tube m, see Fig. 3; or through the perforations in the
tube j and out at the bell mouth beneath tho burner, see Fig. 4.
Where only small quantities of gas are required to be consumed the tubes k, p,
and j respectively for supplying a small quantity of air for combustion with the
gas immediately it issues from the burner b inay be dispensed with.
The secondary regenerator i heats that portion of air admitted directly to the
globe o and also partially heats the whole of the air supplied through the primary
regenerator d for combustion with the gas.
Having stated the nature of our Invention and described the manner of
performing the same
We declare that we claim
1. The improved regenerative gas lighting apparatus, substantially as and for
the purposes horein shown and described.
2. The secondary regenerator or heating chamber i for the purpose of heating
that portion of air admitted directly to the globe o and also for partially heating
the whole of the air supplied through the primary regenerator & for combustion,
substantially as herein shown and described.
3. The burner 6 formed of a ring of steatito or other refractory material
secured between metal flanges c as applied to regenerative gas lighting apparatus,
substantially as herein shown and described.
4. In regenerative gas lighting apparatus, the tubo k or its equivalent the
tube p or the tube j, substantially as and for the purposes herein shown and
described.
In witness whereof I the said Thomas Thorp for myself and on behalf of the
said Anthony Spencer Bower have hereunto set my hand and seal this Twenty
fifth day of January One thousand eight hundred and eighty four
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