Year: 1888

page_text: Date of Application, 20th Jan., 1888
Complete Specification Left, 20th Oct., 1888
Complete Specification Accepted, 23rd Nov., 1888
I, THOMAS GORDON of No. 2 Victoria Mansions in the City of Westminster,
Mechanical Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to what are now generally known as
"regenerative
lamps" and those in which the products of combustion pass away through a central
chimney.
The object of this invention is to produce an improved construction of such lamps
in which not only will the gas chamber be outside the burner but owing to the
improved construction and arrangement of parts said burner and chamber may be
readily constructed and also separated and the parts removed for cleaning renewal or
repairs, further objects of the invention being to so arrange and construct the parts
that the waste product flue and chimney may be readily centered and yet be removable
while the supporting piece and air deflector when constructed according to this
invention may freely expand and contract without buckling, and all of said parts. may
be readily removed when desired.
The invention consists in the improved construction and arrangement of parts
whereby the objects of the invention may be carried out and the nature of the invention
may be briefly described as follows
The spider piece is arranged to carry and support both the waste product flue and
the chimney and rests upon a part of the gas chamber casting by which it is centrally
held while being left free to expand.
The burner is substantially of a hollow truncated conical section the gas tubes in
which are separated through a part of their length so as to permit part of the air
supply to pass between them.
At the upper end said tubes extend or open into the gas chamber by which they are
partially supported. Said burners may be cast or formed solid as to the tubes which
nay be subsequently drilled out.
The air deflecting plate is slightly less in diameter than the rim by which it is
upported.

page_text: The said plate is provided with upwardly projecting lugs in which rest supporting
pins which also pass through the rim, such construction rendering it possible for the
plate to expand or contract under, varying. temperatures without putting strain on any
of the parts while the space between the plate and rim permits a small current of air
to be deflected directly upon or around the interior of the glass globe beneath the
burner.
0
000
PHILIP M. JUSTICE,
55 & 56, Chancery Lane, London,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in Gas Lamps and Burners.
I, THOMAS GORDON formerly of No. 2 Victoria Mansions in the City of Westminster
but now of Corner of 21st Street and Washington Avenue, Philadelphia, in the State
of Pennsylvania, United States of America, Mechanical Engineer, do hereby declare 1
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 :-
33
This invention relates to what are now generally known as "regenerative lamps
and those of a similar character in which the products of combustion pass away through
a central chimney.
The object of this invention is to produce an improved construction of such lamps in
which not only will the gas chamber be outside the burner but owing to the improved
construction and arrangement of parts, said burner and chamber may be readily
constructed and also separated, and the parts removed for cleaning, renewal, or repairs,
further objects of the invention being to so arrange and construct the parts that the
waste product flue and chimney may be readily centered and yet be removable, while
the supporting piece and air deflector, when constructed according to this invention
may freely expand and contract without buckling, and all of said parts may be readily
removed when desired.
To clearly explain how my invention is carried into effect, reference
accompanying drawings, in which:
Fig. 1 represents a vertical section of a lamp on line C D of Fig. 2.
made to the
Fig. 2 is a horizontal section through line A B of Fig. 1, parts of the casing being
omitted.
Fig. 3 on the right of the central line is a vertical elevation of the lamp, and on the
left of the centre line is a section on line E F of Fig. 2, illustrating the means adopted
for securing some of the several parts in place.

page_text: Fig. 4 on the right of the centre line is a top view or plan showing the arrange-
ment of the gas inlets, and on the left of said line is a bottom view inverted showing
the arrangement of screws for securing the outer air deflector.
Fig. 5 represents a plan and elevation of the centre flue.
Fig. 6 represents a section and plan of the spider for supporting the centre flue and
chimney of the lamp, showing in detail the centering lugs above and below the points
of support.
Fig. 7 represents in plan and section the outer air deflector.
Referring to the drawings:
The gas burner A is cast of one piece of metal, having rim projections B and (
above and below the centre line of the ribs E; these ribs E are drilled through
longitudinally, forming passages for the gas; the spaces F between the tubes thus
formed admitting of the passage of air downward to the outer surface of the flame.
The gas chamber G is formed in two sections H and I, having lugs J J cast on
their peripheries (see Fig. 3). These parts are fitted to each other and to the burner
to form gas-tight joints, and one or more gas inlet ports K are provided, the gas pipes
being connected thereto in such manner as to form supports in suspending the
lamp.
To the lower surface of section I of the gas chamber is fitted the globe holder L,
which is secured thereto by a hinge and latch, to provide facilities for cleaning or
replacing the globe and lighting the lamp.
Section I of the gas chamber has also cast upon its lower inner circumference, and
projecting down therefrom, a rim M, to which is secured a deflector plate N, shown
detached in Fig. 7. This deflector plate is provided with lugs O projecting upward,
having smooth holes drilled horizontally through them. The screws P, (Figs. 1 and 4)
which serve to support the deflector N, are secured in the rim M, and the ends of the
screws are turned down to fit smoothly as pins only in the holes in lugs O. The
deflector N is of somewhat smaller diameter than the inner circumference of the rim M,
thus leaving an annular space through which air may pass to the inner surface of the
globe, to prevent overheating, etc. Any difference in expansion which may exist
between the deflector N and other parts, is thus provided for, and the life of these
parts is thereby lengthened.
Section H of the gas chamber is provided with lugs at its upper surface,
projecting inward, the object of which is to form a support for the spider D, (shown
detached in Fig. 6). Said spider is constructed with ledges R R upon its inner
circumference, and projecting downward from said ledges are fingers S which also
project inward and touch the centre flue some distance below its point of support.
Above the ledges R R, and upon the inner circumference of the collar D² of the spider D,
are projections T, which extend inward far enough to touch the outer circumference
of the centre flue at some distance above the point of support, the object of this
arrangement being to maintain the centre flue in à plumb and concentric position.
An annular rim U projecting downward is also provided, the object of which is to
secure the perforated cylinder V in place. The perforated cylinders V and W serve
the purpose of filtering the air supply and causing it to be delivered to the flame
evenly, and in smooth currents, preventing flickering and unsteadiness in the light.
They also serve to more thoroughly heat the air.
The arms D¹ of the spider D (Figs. 1 and 2) are slotted as shown in the latter
figure and are secured to the lugs Q on section H of the gas chamber G by screws Q¹,
so that while maintaining the spider in a position concentric with the other parts of
the lamp, they are also free to expand and contract without injury to any part of
the apparatus. The collar D2 cast upon the spider D has the chimney X attached
to it.
I prefer to construct the centre flue R¹ shown detached in Fig. 5 of one piece of
refractory material and with lugs R². These lugs are made of such size as to pass
readily up through the opening X¹ of the spider D. The projections T are so placed
as to act as stops to prevent the centre flue being passed too far up, and the pins or
:

page_text: projections T¹ are provided to prevent accidental displacement of the centre flue.
With this arrangement, it will be impossible to remove the centre flue without first
having raised it far enough for lugs R² to pass over pins or projections T¹.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a regenerative gas lamp a central portion or spider for the support of the
waste product flues or other parts, said spider being attached to the gas chamber or
burner by expansion joints substantially as described.
2. In a regenerative lamp an air deflector situated near the gas outlet, attached by
expansion joints substantially as described.
PHILIP M. JUSTICE,
55 & 56, Chancery Lane, London,
Applicant's Agent.