ONAL DELICATIONS
Year: 1889

page_text: Date of Application, 15th Nov., 1889
Complete Specification Left, 13th Aug., 1890-Accepted, 20th Sept., 1890
IRUVIDIONAL DELICATIONS
Improvements in Lamps.
I, THOMAS COOPER JOHN THOMAS, of 5 Carlton Road, Hornsey, in the County
of Middlesex, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention has reference to improvements in regenerative or recuperative lamps
of the kind described in the Specification of Letters Patent granted to me dated
25th November 1887 No. 16247.
According to the present invention there is provided above the burner a deflector
suitably formed and arranged to deflect laterally and downward gas issuing from the
burner and also to serve as a cover protecting the burner from dirt. This deflector
may advantageously be of conical form and be formed with or carried by the central
socket or tubular support of the regenerator or air heating apparatus (hereinafter
called a regenerator).
My present invention can be carried out in various ways.
In one arrangement the burner is open at the top to afford a free gas passage not
liable to become choked and the regenerator is supported and held by a rod that
enters the central socket and is fixed at its lower end to a part formed with a screw
threaded socket that is adapted to be connected by screwing to the tubular end of
a pedestal, pillar, bracket, gasalier or other support through which the gas supply
passes, and to which the burner, which may be in the form of a hollow truncated
cone, is attached.
In another arrangement the central socket provided with a deflector, is arranged to
serve as a support resting directly upon the upper open end of the burner tube which
in this case is formed with lateral holes for the escape of gas below the deflector.
The burner may be provided with an external air chamber, and an annular vertical
adjustable cover that surrounds the regenerator and rests upon the glass or globe may
be employed as in the construction of lamp shewn in my said former specification.
In a form of lamp adapted to be supported from above instead of below, the central
hollow support that carries the regenerator is secured to a gas supply pipe that passes
through the chimney and is in communication with a pipe that is arranged to enter
the burner tube and is provided with a deflector located above the upper open end of
this tube. This latter pipe is closed at its lower end by a stopper or closure, and is
formed with a number of lateral holes through which gas can freely pass into the
burner tube, the number of holes and their arrangement with reference to the burner
being such as to obviate liability of the gas supply being choked by accumulation of
dirt or scale within the burner. The stopper or closure serves to carry the burner and
also the surrounding air chamber when this chamber is employed. The central hollow
support is formed with arms or with a flange that takes against the inner surface of
the central air heating chamber of the regenerator and maintains the same in proper
position. It is advantageous to use a flange and to form the same with numerous
perforations that serve to break up the air supply on its way to the burner. The
lower end of the air heating chamber may be constructed and be provided with an
upwardly extending perforated flange to aid in regulating the flow of air to the
burner. A removable gallery adapted to slide upon and be secured to an extension
of the stopper or closure and formed with air passages is provided for carrying the
lamp glass or globe, a light annular perforated cover being also employed as in the
previously described arrangement to rest upon the top of such glass or globe.
In conjunction with this cover there may be used a downwardly depending casing
so arranged as to cause air to first flow downward and then upward before entering
the ravanemater

page_text: To lower the temperature of the hot gases and products of combustion passing from
regenerative lamps and to assist their upward flow through the chimney I provide for
the admission of a regulated quantity of fresh air. To this end the casing above
the regenerator forming the chimney can be provided with a number of holes for the
admission of air which is deflected upward by a conical ring fixed within the
chimney.
Or the chimney may be supported above the regenerator by a dome or cover so
formed as to leave suitable air passages between itself and the chimney when the two
are in place.
COMPLETE SPECIFICATION.
Improvements in Lamps.
I, THOMAS COOPER JOHN THOMAS, of 5 Carlton Road, Hornsey, 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 :-
This invention has reference to improvements in regenerative or recuperative lamps
of the kind described in the Specification of Letters Patent granted to me dated
25th November 1887 No. 16247, and in which the gas issues upward from the burner
located below the regenerator or air heating apparatus.
The invention has for its object to provide a more safe and efficient support for the
regenerator or air heater (hereinafter called the regenerator) when the same is made
removable to afford access to the burner; to provide an efficient deflector for deflecting
the gas issuing from-the-burner ;-to-protect-the gas outlet or outlets from becoming
choked with scale or dirt; and to lower the temperature of the hot gases and products
of combustion as they pass up the chimney.
In order that this invention may be clearly understood reference is made to the
accompanying drawings, in which,
Fig. 1 is a central vertical section of a lamp adapted to be supported by a pedestal
or the like below, and provided with a regenerator made readily removable to afford
access to the burner.
Fig. 2 is a vertical section of part of a similar lamp constructed with a modified
arrangement for supporting the regenerator.
Fig. 3 is a vertical section of-a-lamp-adapted-to-be-suspended_being_carried_by_a
support arranged above instead of below it. In this lamp the regenerator is not
supported by a rod in such a way that it can be removed by simply raising it as in the
lamp illustrated in Fig. 1.
Fig. 4 is a sectional detail view illustrating a modification.
Referring to Fig. 1 of the drawings, 1 is a burner in the form of a tube that may
advantageously be a hollow truncated cone as shown. This burner is open at the top
to afford a free annular gas passage not liable to become choked, and at its lower end
is secured to a part 2 hereinafter called for distinction the base. The base in the
example is made with a screw threaded socket that is adapted to be connected by
screwing to the tubular end of a pedestal, pillar, bracket, gasalier, or other support
through which the gas supply can pass. As shown, the base 2 is made with a nozzle
shaped upper portion which is perforated for the passage of gas into the burner. 3 is a
rod secured to and projecting upward from the base 2 and through the burner 1. 3° is
a perforated plate secured to the interior of the burner and serving as a lateral support
or stay between the burner and the rod 3. 4 is a chamber having a contracted open
lower end and connected by air inlet tubes 5 to a cylindrical casing 6 which forms the
lower part of a chimney of which 7 is the upper and narrower part.. The parts 4, 5

page_text: and 6 constitute the regenerator. It is constructed with a central socket or cap 8,
which may for convenience of manufacture be made as a separate part and be secured
to the chamber 4 as in the example shown. The socket or cap 8 fits on the rod 3
which is thus made to support and take the weight of the regenerator so that no part
of such weight rests either upon the burner 1, or upon the glass bowl or globe. With
this construction it will be seen that the regenerator together with the chimney and
cover 18 (hereinafter described) can be readily lifted clear of the burner and globe for
the purpose of lighting the lamp or for other purpose, and afterwards being replaced,
the regenerator being so supported that light is not obstructed by rods, arms or other
supports outside the flame; also that should the globe be broken the whole of the
otlier parts will nevertheless retain their places. A gas governor or regulating device
of any suitable construction can if desired be interposed between the base 2 and the
pedestal or other support below it.
9 is a deflector attached to and removable with the regenerator; this deflector is
adapted to deflect, laterally and downward, the gas that issues from the burner 1.
This deflector is so formed and is arranged above the burner in such a manner as also
to serve as a cover or shield to the burner for preventing entrance of scale or dirt and
consequent choking of the gas passages. This deflector is shown as made of a bell
mouthed form, but it may be of other shape such as the truncated conical form shown
in Fig. 2. Its upper and outer surface is curved or inclined outward and downward
as shown to aid in deflecting heated air as it issues from the regenerator upon the
upper side of the flame: The deflector is shown as made in one piece with the socket
or cap 8, but (as will be obvious) it may be made separate therefrom and be secured
thereto. 10 is a gallery carried by the base 2; it serves to support the glass bowl or
globe 11 which rests, in the example, upon a ring or washer 13 of packing material
such as asbestos. The gallery 10 surrounds the lower part of the burner 1 so as to
form an annular air chamber, into which air can enter through holes 12 in the gallery.
14 is a tube forming an upward continuation of the air chamber around the burner.
Part of the air entering this annular air chamber passes into the globe and to the
under and outer side of the flame through the upper open end of the tube 14, and part
passes by openings 15 in the tube 14 into the lower part of the globe for the purpose
of keeping the same cool. The air tube 14 may be dispensed with, but I consider its
use advantageous because, the air passing through this tube serves to keep cool the
burner 1, and the gas passing through the burner; also the tube 14 helps to impart a
desirable form to the flame.
16 is a light cover that surrounds the regenerator as also the casing 6 and rests
upon the globe, the upper opening in which it closes. This cover serves to direct air
through the inlet tubes 5 to the chamber 4 of the regenerator and is (preferably)
formed with a depending portion the bottom of which fits round the outside of the
casing 6 and is made with holes 18 for admitting a further supply of air to the globe
to keep the upper portion of the same cool and clear, and to assist in carrying off the
products of combustion through the chimney. The cover 16 is provided with a
perforated plate or diaphragm 19 that serves to break up the air passing to the inlet
tubes 5 and thus ensures a steady flame. As will be seen the cover 16 will adapt itself
to the height of the globe. 20 is an annular ridge or projection around the lower end
of the casing 6 for the purpose of strengthening the same; it also serves to arrest the
descent of the cover 16 the bottom of which will rest upon the said ridge 20 should
the globe break. The cover may be provided with or can be made to serve as a
reflector.
In Fig. 2 there is formed around the open lower end of the central socket 8 an
annular surface that constitutes a valve surrounded by a deflector 9 of truncated
conical form; this valve is arranged to close the upper open end of the burner 1
which in this case is formed with a row of lateral holes 1ª for egress of gas within the
deflector.
In the construction of lamp shown in Fig. 3 which is adapted to be suspended,
instead of being supported from below, the base 23 which carries the burner and other

page_text: parts is connected to the central socket 8 of the regenerator by means of a pipe 22
which is fixed to the base, and which pipe at its upper end is screwed into the socket 8.
A gas supply pipe 21 passes through the chimney 7 and is connected at its lower end
to the central socket 8. The pipe 22 occupies the same position within the conical
burner tube 1 that is occupied by the rod 3 in the lamp, illustrated in Fig. 1. The
deflector 9 surrounds the pipe 22 and is located above the upper open end of the burner
in a manner similar to that hereinbefore described with reference to Fig. 1 and for the
same purpose. The pipe 22 is closed at its lower end by the base 23. Also the said
pipe is formed with a number of lateral holes 24, through which gas can freely pass
into the burner. To this end I make the holes somewhat numerous and large as shown
and I so arrange them as to leave ample space within the lower part of the burner
for the reception of deposit without choking the holes, or any considerable proportion
of them. In the example, 20 holes are supposed to be provided, arranged in
four vertical rows, two of which rows are shown in the drawings. By this arrange-
ment I obviate liability to choking of the gas supply by accumulation of dirt or scale
within the burner. The base 23 serves to carry the burner 1 and also the surrounding air
tube 14, when this tube is employed. The central socket pipe S is formed with arms,
or with a flange 8 that takes against the inner surface of the central air heating
chamber of the regenerator and maintains the same in proper position. It is advan-
tageous to use a flange and to form the same with numerous perforations 8b that serve
to break up the air supply on its way to the burner. The lower end of the air heating
chamber may be contracted and be provided with an upwardly extending perforated
flange as shown in dotted lines, to aid in regulating the flow of air to the burner.
10 is a removable gallery for carrying the globe 11; it has fixed to it a tubular
part 10 adapted to slide upon and be secured to an extension 23 of the base 23
and is formed with inlet passages 25 for air that passes to the tube 14 and thence
to the flame and globe as in Fig. 1. 10 is a light annular perforated cover as
before. In conjunction with this cover 16 which (as in Fig. 1) is open at its top,
there may be used a curtain 26 so arranged as to cause air to first descend within the
cover and then to rise within the curtain as indicated by arrows, on its way to the
regenerator. In this case the perforated plate 19 (Fig. 1) is dispensed with.
The lower and larger part 6 of the chimney in this arrangement is cast in one piece
with the heating chamber 4 and inlet pipes 5 and between it and the upper part 7
of the chimney there is interposed a dome shaped case 7ª upon which the inwardly
turned upper edge of the curtain 26 can rest as shown.
.
The arrangement of central gas supply pipe 22, screwed into a central socket
pipe S, and formed with lateral holes 24 surrounded by a burner in the form of a
truncated conical tube 1 closed at its lower end can be advantageously used in various
_constructions_of_regenerative lamps of the kind adapted to be suspended from
above and in which the glass or globe is carried-by-a-hinged-ring fixed to the
regenerator or other suitable part of the lamp. Fig. 5 shows such an arrangement
of central gas supply pipe and burner, the outer air tube 14, shown in Fig. 3, being
dispensed with.
To lower the temperature of the hot gases and products of combustion passing from
a regenerative lamp, I provide for the admission of a regulated quantity of fresh
air. To this end there are formed in the lower portion of the wall of the upper
part 7 of the chimney of the lamp a number of holes or passages 27 for the
admission of air which is deflected upward by an annular deflecting guard 28, of
conical or conoidal form arranged to extend upward within this part of the chimney
as shown in Figs. 1 and 3. In lieu of holes or passages 27 in the chimney, the
dome shaped casing 7ª may be formed with a circular row of projections 7b upon which
the upper part 7 of the chimney and inwardly turned upper edge of the curtain 26
can rest, as shown in Fig. 4, so as to form a series of passages between the
projections through which passages air will flow from within the curtain 26 in an
upward direction and into the chimney as shown by the arrow. 28 is a deflecting
guard as before.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The construction of a regenerative lamp of the kind hereinabove referred to
in which the regenerator instead of resting upon the tubular burner 1 is supported
by means of a rod that is carried by the burner-base 2 and extends therefrom upward
within the tubular burner substantially as described.
2. The improved construction of regenerative lamp in which the regenerator
consisting of the parts 4, 5 and 6 with socket 8, is supported by a rod 3 that is fixed
to a base 2 adapted to be attached to a pedestal or other support below it and
projects upward through the burner, and there is interposed between the top of the
burner and the bottom of the regenerator a deflector 9 that serves not only to
impart a downward and outward direction to gas issuing from the upper part of
the burner but also as a cover to the upper part of the burner substantially as
hereinbefore described with reference to Fig. I or modified as shown in Fig. 2 of
the drawings annexed.
3. A regenerative lamp constructed with a chimney 7 and with holes 27, or
passages, for the admission of cool or comparatively cool air into such chimney,
and with an annular deflecting guard 28 arranged within the chimney as hereinabove
described with reference to the examples illustrated repectively in Figs. 1, 3 and 4
of the drawings annexed for the purpose indicated.
4. My improved regenerative lamp constructed as hereinbefore described with
reference to and shown in Fig. 3 of the drawings annexed, whether with or without
the openings 27 and deflecting guard 28.
Dated this 12th day of Auest 1800
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Applicant's Agent.