Improvements in Lanterns and Lamps, and Burners thereof.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Lanterns and Lamps, and Burners thereof.
I, JOHN HENRY STONE, of 21, Sultan Street, in the City of Toronto, in the
County of York, in the Province of Ontario, Canada, Manufacturer, do hereby
declare the nature of this invention, to be as follows:-
My invention relates to improvements in tubular lanterns, and also in lamps,
and the object of the invention is-first-to devise a lantern or lamp, which will
be perfectly safe under all circumstances and yet provide for a rapid supply
of air into the combustion chamber and consequently increase the brightness of
the flame and yet without creating a draught and without any liability of putting
out the flame or smoking and secondly to provide a rapid supply of still air
centrally to and around the wick of the burner without undue draught and it
consists essentially-first-of a lantern provided with tubes leading from below
the burner to the outer jacket of an annular chamber surrounding the globe
support, such annular chamber being provided at the bottom with a draught
directing ring and a supplemental annular chamber being formed between the
globe support and an inner casing, the top of the globe support being perforated
by suitable openings as also the bottom of the inner casing and the bottom of the
globe being supported by peculiarly formed double concavo-convex perforated
plates and the lantern being constructed in detail as hereinafter more particu-
larly explained and-secondly-of providing around the wick tube inside of the
cap of the burner a double concavo-convex perforated plate, which is supported
in the burner and designed to diffuse the draught gently as hereinafter more
particularly explained.
Fig. 1, is a perspective view mostly in section of a lantern provided with my
improvements.
Fig. 2, is a sectional detail of the preferred form of casing for the upper
portion of the lantern.
Fig. 3, is a detail of the spring and rod by which the globe holder is held
in place.
Fig. 4. is a detail of the burner.
Fig. 5, is a detail of an alternative form of burner.
Fig. 6, is a detail of a suitable form of burner for a lamp.
In the drawings like letters of reference indicate corresponding parts in each
figure.
A is the base or oil bowl, which is provided with a collar B designed to receive
the burner and provided with a slot 6 for the wick operating spindle C. D is
the cap of the burner. E E are the side bent tubes of the lantern, which are
connected together to the collar B and communicating with the burner in the
interior thereof. The upper bent ends of the side tubes E are connected to the
jacket F of the annular chamber F¹.
G is the globe, which is provided with internal flanges g g₁ at the top and
bottom. Hand H¹ are concavo-convex perforated plates secured within the
flanged rim I. The plates have their concaved sides towards each other and

page_text: consequently the convex sides outermost. The perforations in the plate H¹ are
larger than those in the plate H, so that the air admitted through the plate H
will be retarded to a certain extent and thereby effect a perfect diffusion of the
air as it passes up around the slot of the. cap. The plates H and H' are
provided with central holes h and respectively as indicated, so that they fit
down upon the cap and thereby with the rim I serve to support the globe at
the bottom.
J is the top globe holder, which extends up to the top of the lantern within
the annular plate j connected to the top of the jacket F. K is an inner wall or
casing, which fits within the globe holder J and is also supported and connected
on the inside edge by the flange at the top to the annular plate connected
to the globe holder.
I is the top cap of the lantern, which is supported on projections extending
upwardly beyond the annular plate j and forming part of the upper globe
holder J. The centre of the cap is provided with the usual ring 7. M is a ring
vertically arranged around the opening beneath the cap L, and preferably
secured to the tops of the tube E. N is the bail by which the lantern is carried,
the ends of which are pivotally held within the ring M.
In the upper part of the globe holder Jas indicated by the broken away
portion of the inner casing K. are a series of openings. At the bottom of the
casing K are also located a series of openings . The inner casing K may be
in the form of a truncated cone as shown, which is the preferable form or
perfectly cylindrical in shape.
O is an inwardly projecting inclined flange, which is supported on the bottom
of the jacket and the top of which extends close to the globe holder J, so as
in a certain extent to cause an upward draught into the annular chamber F1
and yet retard such draught. The bottom end of the globe holder fits around.
-the internal flange_g at the top_of_the_globe_and_such bottom is held in position
by means of the rod P, the bent end 2 of which extends into the globe holder
and the upper end of which extends through a tubular guide P', which is
suitably soldered or secured to the jacket F.
The rod P extends through the bottom flange of the jacket and up to and
through the hole in the top plate being provided with a knob 7. A spiral
spring surrounds the rod and is of course held in the tubular guide.
There are two of these tubular guides situated diametrically opposite but only
one is shown in Fig. 3, and these tubular guides are not shown in Fig. 1, as
they are at right angles to the tubes E and diametrically opposite each other.
It will, however, be understood that by pulling on the ring the globe holder
with the casing K attached thereto by means of the ring 3 is raised, so that the
bottom of the holder releases the flange g of the globe, thereby enabling the
globe to be swung down into position. such globe being hinged at the bottom
to the collar B in any manner. As it is very common to swing this globe I do
not describe the manner in which it is hinged as it is an ordinary expedient well
known to manufacturers of tubular lanterns.
The air it will be seen passes through the plates H and H being diffused
around the slot in the cap D. thereby supplying to the greatest extent the
oxygen to the flame. The air also passes up underneath the flange O into the
annular chamber F1 and through the openings at the top into the annular
chamber K formed between the globe holder and casing K. whence it passes
through the openings in the casing K into the combustion chamber, thus
supplying oxygen to the air therein. The current of air is carried in addition
down through the side tubes E E to the burner. The heated products of com-
bustion from the wick, of course pass directly up in a central column to the
cap and out by the openings formed between the cap and the annular
plates and 3.
I find in practice that the form of circulation of air, which I have now.

page_text: described taken in connection with the ring M serves effectually to prevent any
strong draught entering into the lamp even in the highest wind, thus obviating
completely any liability of the globe becoming smoked or the flame being
blown out.
In Fig. 2, I have shown an alternative form in which
arrange the inclined
flange O, so that the top thereof comes beyond the top of the tubes E E, which
in this instance are lowered near to the bottom of the jacket F to which they
are secured.
The burner comprises the casing R, which is substantially tapered as shown,
the bottom end of which fits within the neck of the bowl A, the wick tube R
provided with the usual turning stem r, and the cap 1 herein before referred
to having the slot d. The upper end of the burner is preferably in my invention
formed bowl-shaped perforated preferably with the upwardly extending slots r.
At the top of the bowl is formed the out-turned flange on the shoulder formed
by which rest the concavo-convex double plates and r. These plates are
provided with central slots 3 and 4, so that they can be fitted on the wick tube
and thus held in position. The lower plate has larger perforations than the
upper plate. The burner is provided with the usual intermediate diaphragm 2.
It will be seen that the air passing down through the tubes E to the burner
will pass upwardly through the perforated bowl of the burner and the concavo-
convex perforated plates, the minor perforations of the upper plate serving to
diffuse the air around the top of the wick. I find in practice that the pure air
passing in close proximity to the top of the wick as stated serves to prevent any
incrustation so much so indeed that the charring of the wick is prevented to a
great extent and the necessity for trimming frequently consequently obviated.
In Fig. 4, I show the cap D with a downwardly extending flange D', which
fits between a downwardly extending flange R³ formed outside the bowl of the
burner and secured to such bowl and the collar B. By this construction it will
be seen that the cap of the burner is securely held in place so that the swinging
of the lantern will not remove it.
In Fig. 5, I show the cap with an inner flange D2 which fits between the inner
edges of the concavo-convex double plate and the outer turned flange 2, the cap
being in this instance also securely held in place. Before it has been customary
to have the outer flange of the cap fit outside the collar and as a consequence such
cap when the lantern was swung would frequently fall out but by the construction
herein before referred to in reference to Figs. 4 and 5 both of which are equivalent
constructions all danger in this respect is avoided.
Of course it is necessary in the construction of the burner hereinbefore
referred to to provide a means whereby the cap may be always placed in the
proper position and for this purpose I provide a vertical projection on the
flange I, which is designed to fit within the vertical slot b cut in the collar.
In Fig. 5, any similar form of device for placing the cap in proper position
may be provided. The flange D³ in Fig. 5, of course fits tightly in this instance
into the collar B.
In Fig. 6, I show the form designed for a lamp in which it will be noticed
that the chimney of the lamp is held on an outwardly extending flanged
annular support 5. The concavo-convex plates and the form of the bowl are
practically the same.
It will thus be seen from this description that I have provided a form of
lantern, which is provided with a central draught, which is so beneficial in all
forms of lamps and lanterns on account of holding the light steady and also
assisting perfect combustion.

page_text: торгомещения и залегнали машро, а Dure
I, JOHN HENRY STONE, of 21, Sultan Street, in the City of Toronto, in the
County of York, in the Province of Ontario, Canada, Manufacturer, 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 improvements in tubular lanterns, and also in lamps,
and the object of the invention is-first-to devise a lantern or lamp, which will
be perfectly safe under all circumstances and yet provide for a rapid supply
of air into the combustion chamber and consequently increase the brightness of
the flame and yet without creating a draught and without any liability of putting
out the flame or smoking and--secondly-to provide a rapid supply of still air
centrally to and around the wick of the burner without undue draught and it
consists essentially-first-of a lantern provided with tubes leading from below
the burner to the outer jacket of an annular chamber surrounding the globe
support, such annular chamber being provided at the bottom with a draught
directing ring and a supplemental annular chamber being formed between the
globe support and an inner casing, the top of the globe support being perforated
by suitable openings as also the bottom of the inner casing and the bottom of the
globe being supported by peculiarly formed double concavo-convex, perforated
plates and the lantern being constructed in n detail as hereinafter more particu-
larly explained, and secondly-of providing around the wick tube inside-of-the
cap of the burner a double concavo-convex perforated plate, which is supported
in the burner and designed to diffuse the draught gently as hereinafter more
particularly explained, with reference to the drawings accompanying my
Provisional Specification in which
Fig. 1, is a perspective view mostly in section of a lantern provided with my
improvements.
Fig. 2, is a sectional detail of the preferred form of casing for the upper
portion of the lantern.
Fig. 3, is a detail of the spring and rod by which the globe holder is held
in place.
Fig. 4, is a detail of the burner.
Fig. 5, is a detail of an alternative form of burner.
Fig. 6, is a detail of a suitable form of burner for a lamp.
In the drawings like letters of reference indicate corresponding parts in each
figure.
A is the base or oil bowl, which is provided with a collar B designed to receive
the burner and provided with a slot b for the wick operating spindle C. D is
the cap of the burner. E E are the side bent tubes of the lantern, which aro
connected together to the collar B and communicating with the burner in the
interior thereof. The upper bent ends of the side tubes E are connected to the
jacket F of the annular chamber F¹.
G is the globe, which is provided with internal flanges g g₁ at the top and
bottom. H and H¹ are concavo-convex perforated plates secured within the
Hanged rim I. The plates have their concaved sides towards each other and
consequently the convex sides outermost. The perforations in the plate H¹ are
larger than those in the plate H, so that the air admitted through the plate H¹
will be retarded to a certain extent and thereby effect a perfect diffusion of the
air as it passes up around the slot d of the cap. The plates H and Hare
provided with central holes h and h¹ respectively as indicated, so that they fit

page_text: down upon the cap and thereby with the rim 1 serve to support the globe at
the bottom.
Jis the top globe holder, which extends up to the top of the lantern within
the annular plate connected to the top of the jacket F. K is an inner wall or
casing, which fits within the globe holder J and is also supported and connected
on the inside edge. by the flange at the top to the annular plate connected
to the globe holder.
L is the top cap of the lantern, which is supported on projections extending
upwardly beyond the annular plate and forming part of the upper globe
holder J. The centre of the cap is provided with the usual ring 7. ML is a ring
vertically arranged around the opening beneath the cap L, and preferably
secured to the tops of the tube E. N is the bail by which the lantern is carried,
the ends of which are pivotally held within the ring M.
In the upper part of the globe holder J as indicated by the broken away
portion of the inner casing K are a series of openings. At the bottom of the
casing K are also located a series of openings . The inner casing K may be
in the form of a truncated cone as shown, which is the preferable form or
perfectly cylindrical in shape.
O is an inwardly projecting inclined flange, which is supported on the bottom
of the jacket and the top of which extends close to the globe holder J, so as
in a certain extent to cause an upward draught into the annular chamber F
and yet retard such draught. The bottom end of the globe holder fits around
the internal flange g at the top of the globe and such bottom is held in position
by means of the rod P', the bent end p of which extends into the globe holder
and the upper end of which extends through a tubular guide P, which is
suitably soldered or secured to the jacket F.
The rod extends through the bottom flange of the jacket and up to and
through the hole in the top platej being provided with a knob pl. A spiral
spring surrounds the rod and is of course held in the tubular guide.
There are two of these tubular guides situated diametrically opposite but only
one is shown in Fig. 3, and these tubular guides are not shown in Fig. 1 as
they are at right angles to the tubes E and diametrically opposite each other.
It will, however, be understood that by pulling on the ring the globe holder
with the casing K attached thereto by means of the ring is raised, so that the
bottom of the holder releases the flange g of the globe, thereby enabling the
globe to be swung down into position, such globe being hinged at the bottom
to the collar B in any manner. As it is very common to swing this globe I do
not describe the manner in which it is hinged as it is an ordinary expedient well
known to manufacturers of tubular lanterns.
The air it will be seen passes through the plates H and H' being diffused
around the slot d in the cap D, thereby supplying to the greatest extent the
oxygen to the flame. The air also passes up underneath the flange into the
annular chamber and through the openings 2 at the top into the annular
chamber Kformed between the globe holder and casing K, whence it passes
through the openings in the casing K into the combustion chamber, thus
supplying oxygen to the air therein. The current of air is carried in addition
down through the side tubes EE to the burner. The heated products of com-
bustion from the wick of course pass directly up in a central column to the
cap L and out by the opening formed between the cap and the annular
plates and ³.
I find in practice that the form of circulation of air, which I have now
described taken in connection with the ring M serves effectually to prevent any
strong draught entering into the lamp even in the highest wind. thus obviating
completely any liability of the globe becoming smoked or the flame being
blown out.
In Fig. 2, I have shown an alternative form in which I arrange the inclined
Hange O¹, so that the top thereof comes beyond the top of the tubes E E, which

page_text: in this instance are lowered near to the bottom of the jacket F to which they
are secured.
The burner comprises the casing R, which is substantially tapered as shown,
the bottom end of which fits within the neck of the bowl A, the wick tube R
provided with the usual turning stem r, and the cap herein before referred
to having the slot d. The upper end of the burner is preferably in my invention
formed bowl-shaped perforated preferably with the upwardly extending slots r¹.
At the top of the bowl is formed the out-turned flanger, on the shoulder formed
by which rest the concavo-convex double plates and . These plates are
provided with central slots 3 and 4, so that they can be fitted on the wick tube
and thus held in position. The lower plate has larger perforations than the
upper plate. The burner is provided with the usual intermediate diaphragm 2.
It will be seen that the air passing down through the tubes E to the burner
will pass upwardly through the perforated bowl of the burner and the concavo-
convex perforated plates, the minor perforations of the upper plate serving to
diffuse the air around the top of the wick. I find in practice that the pure air
passing in close proximity to the top of the wick as stated serves to prevent any
incrustation so much so indeed that the charring of the wick is prevented to a
great extent and the necessity for trimming frequently consequently obviated.
In Fig. 4, I show the cap with a downwardly extending flange D¹, which
fits between a downwardly extending flange R³ formed outside the bowl of the
burner and secured to such bowl and the collar B. By this construction it will
be seen that the cap of the burner is securely held in place so that the swinging
of the lantern will not remove it.
In Fig. 5, I show the cap with an inner flange D2 which fits between the inner
edges of the concavo-convex double plate and the outer turned flange, the cap
being in this instance also securely held in place. Before it has been customary
to have the outer flange-of-the cap-fit-outside-the-collar and as a consequence_such
cap when the lantern was swung would frequently fall out but by the construction
hereinbefore referred to in reference to Figs. 4 and 5 both of which are equivalent
constructions all danger in this respect is avoided.
Of course it is necessary in the construction of the burner herein before
referred to to provide a means whereby the cap may be always placed in the
proper position and for this purpose I provide a vertical projection on the
Hange D, which is designed to fit within the vertical slot b cut in the collar.
In Fig. 5, any similar form of device for placing the cap in proper position
may be provided. The flange D3 in Fig. 5, of course fits tightly in this instance
into the collar B.
In Fig. 6, I show the form designed for a lamp in which it will be noticed
that the chimney of the lamp is held on an outwardly extending flanged
annular support 5. The concavo-convex plates and the form of the bowl are
practically the same.
It will thus be seen from this description that I have provided a form of
lantern, which is provided with a central draught, which is so beneficial in all
forms of lamps and lanterns on account of holding the light steady and also
assisting perfect combustion.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. In a tubular lantern, the combination with the base or bowl, the collar, the
burner provided with a suitable cap and fitting within such collar, of the globe
and the bottom support therefor comprising a suitable ring flange and the
concavo-convex perforated plates arranged with their concave surfaces adjacent
to each other on the inside and the undermost plate provided with larger
perforations than the uppermost as and for the purpose specified.
2. In a tubular lantern, the combination with the base or bowl, the collar, the

page_text: burner, the globe supported on the burner and the side air tubes connected to
the collar and leading to the burner, of the upper outer jacket to which the
upper ends of the side air tubes are connected, the upper globe holder provided
with the top openings and forming an annular air space between it and the jacket,
the inner casing provided with the lower openings and suitably supported on
the globe holder so as to leave an annular air space closed at the top and the cap
located and leaving an annular air space above the closed top of the lower air
chambers as and for the purpose specified.
3. In a tubular lantern, the combination with the base or bowl, the collar,
the burner, the globe supported on the burner and the side air tubes connected
to the collar and leading to the burner, of the upper outer jacket to which the
upper ends of the side air tubes are connected, the upper globe holder provided
with the top openings and forming an annular air space between it and the
jacket, the inner casing provided with the lower openings and suitably supported
on the globe holder so as to leave an annular air space closed at the top, the cap
located and leaving an annular air space above the closed top of the lower air
chambers and the bottom inclined projecting flanges connected to the bottom
edge of the jacket and extending upwardly into proximity with the globe holder
as and for the purpose specified.
4. In a tubular lantern, the combination with the base or bowl, the collar,
the burner, the globe supported on the burner and the side air tubes connected
to the collar and leading to the burner, of the upper outer jacket to which the
upper ends of the side air tubes are connected, the upper globe holder provided
with the top openings and forming an annular air space between it and the
jacket, the inner casing provided with the lower openings and suitably supported
on the globe holder so as to leave an annular air space above the closed top,
the cap located and leaving an annular air space above the closed top of the
lower air chambers, and the vertically disposed collar surrounding the space
between the top plate of the chambers and the cap as and for the purpose
specified.
5. In a tubular lantern, the combination with the jacket and tubes leading
thereto, and the globe holder, of the bottom inclined projecting flange connected
to the bottom edge of the jacket and extending upwardly past the level of the
tubes into proximity with the globe holder and leaving a space between it and
the tubes as and for the purpose specified.
6. In a tubular lantern, the combination with the upper globe holder, the
jacket and the inner casing forming two annular chambers closed at the top and
the cap located above the same, of the vertically disposed collar surrounding
the space between the top plates of the chamber and the cap as and for the
purpose specified.
7. In combination the base, the burner, the globe supported on the burner,
the side tubes, the outer jacket provided with an annular ring at the top, the
upper globe holder and the rod P connected at the bottom to the globe holder
and at the top connected to the jacket and a spiral spring surrounding the rod
and located between the ring and bottom flange of the jacket, said rod and spring
being located to the outside of the globe holder as and for the purpose specified.
8. The combination with the upper globe holder, and the jacket, of the rods
connected at the bottom to the globe holder, and at the top to the jacket and
forming a guide to retain the globe holder in position as and for the purpose
specified.
9. The combination in a lantern with the upper globe holder, of an inner
casing located within the same forming an annular air space within the holder
and inlet openings leading to and from said space through the wall of said casing,
substantially as described.
10. In a tubular lantern, the combination with the burner comprising the bowl
portion having the central diaphragm, a perforated upper end, the wick tube
extending through the diaphragm and the air tight collar surrounding the

page_text: bowl and the tubes connected to and communicating with same, and the cap
surmounting the bowl portion, of the concavo-convex plates slotted to fit over
the wick tube and having their edges closely abutting each other, the upper
concavo-convex plates being provided with minor perforations and the lower with
the major perforations whereby the force of the draught through the air tube is
gradually diminished as and for the purpose specified.
11. The combination with the body of the burner having a depending circum-
ferential flange and the collar surrounding the same, of the cap provided with
a depending flange fitting between the flange of said casing and said collar,
substantially as described.
12. The combination with the body of the burner having a depending flange,
the collar surrounding the same having a vertical slot therein for the turning
spindle. a cap having a depending flange fitting between the flange of the casing
and said collar and a projection extending from the flange of said cap and guided
in the vertical slot in said collar, substantially as described.
13. The combination with the body of the burner having an
upper circum-
ferential flange or collar, of the cap provided with a depending flange fitting
within the flange at the upper portion of the body of the burner as and for the
purpose specified.
Tlated this 20th Jar of November 1890
G. F. REDFERN & Co..
4, South Street, Finsbury, London, Agents for the Applicant.