Improvements in Outside Lamps or Lanterns for use with Gas or other Methods of Lighting.
Year: 1897

page_text: Date of Application, 12th Feb., 1897
Complete Specification Left, 8th Nov., 1897-Accepted, 22nd Jan., 1898
PROVISIONAL SPECIFICATION.
Improvements in Outside Lamps or Lanterns for use with Gas or
other Methods of Lighting.
I, EDWARD JOHN SHAW, of Astral Works, Hatherton Street, Walsall, in the
County of Staffordshire, Lamp and Glass Manufacturer, do hereby declare the
nature of this invention to be as follows:-
:-
This invention relates to certain improvements in outside lamps or lanterns
for use with gas or other methods of lighting, and has for its principal objects:
1st. The combination with such lamps and lanterns of a bye-pass check main
so arranged as to avoid the possibility of the bye-pass flame being extinguished
by a sudden jerk or movement as frequently occurs in bye-pass lamps of ordinary
construction when the full pressure of gas is turned on or off;
2nd. A novel arrangement of a compound reservoir for supplying gas to the
burners and to the bye-pass tubes, whereby a sufficient supply of gas is reserved
totide" over the change from bye-pass flame to full flame and vice-versá;
3rd. The attachment underneath the burners of a glass cup or screen to wholly
or partially screen the burners, and made of clear or coloured glass, or of partially
coloured and partially clear glass, for the more effective illumination of the con-
tents of a shop window.
A further subsidiary object consists in an improved device for supporting the
glass cylinder and cover on the lamp.
«
"
In order to attain the above objects, I propose to suspend my improved lamp or
lantern-which is preferably formed of an oblong tubular frame supporting the
burners as in pendants of existing forms-from the underside of a bye-pass main
connected to the service pipe by a short pipe screwed thereon. Within this
main" is arranged a cock provided with a bye-pass communicating through a
passage formed in a lateral extension or elbow of the main with a narrow
vertical tube connected with one down pipe of the lamp. This down pipe which
feeds the bye-pass flame as described below, is not in communication with the
other down pipe which supplies gas to the burners proper as hereafter described.
A cross-lever may be secured upon the supply cock and provided with chains
and rings in the usual manner to facilitate the operation of the same.
The passage between the cock and the vertical tube is provided at the end near
its connection with such tube, with an adjustable screw stop or regulator
terminating outside the elbow or lateral extension of the "
"
main in a milled
head, by turning which the passage may be more or less closed so as to regulate
the feed of the bye-pass flame, or when desired, by screwing the regulator home
the orifice of the passage may be entirely closed or plugged.
The burners which may be two or more in number, as also the corresponding
bye-pass jets, are secured upon a compound reservoir divided into an upper and a
lower chamber, and having openings on opposite sides to admit the respective
down pipes. One of these openings is connected to the supply pipe by which
gas is conveyed from the chief or under outlet of the bye-pass main; and the
other opening is connected to the supply pipe communicating with the bye-pass

page_text: elbow. The upper chamber of the reservoir-which is in the form of a circular
passage establishes communication between the bye-pass burners and their feed
pipe, while the lower chamber similarly connects the burners proper with their
supply pipe, the arrangement being such that the bye-pass burners are placed
inside or nearer to the centre of the reservoir than the burners proper which are
situate outside them.
".
In order to prevent the occurrence of sudden jerks in the flow of gas and the
consequent extinction of the bye-pass flame when the full pressure is turned on
or off, I provide a check device in connection with the bye-pass main. This
consists preferably of a solid tube formed on or secured to the main," within
which tube a spiral spring with screw adjustment is arranged to act upon a small
sphere or ball which falls into a corresponding indentation made in the plug of
the "main" when the cock is being turned either to shut off or admit the full
pressure of gas. By this arrangement the resistance of the spring retards the
rotation of the plug at an intermediate position for a sufficient interval to ensure
the uniform flow of gas through the bye-pass tubes.
The burners proper may be severally provided with incandescence mantles of
any desired construction and enclosed within a cylindrical glass casing. Or, a
glass screen or cup of suitable pattern may be supported below the burners upon
a central screw or pin secured to the underside of the burner reservoir, and pro-
vided with a suitable removable collar screwed internally to correspond with it.
The glass cup may be made either of clear or partially clear glass, or coloured
glass, or of partially coloured glass, so that a coloured light may be shewn to the
street, and a clear light shewn to the shop window. If desired any suitable
decorations or inscriptions may be applied on the glass screen or cup.
I also secure two metallic discs or washers at a suitable position on the down
tubes where required for supporting the cover and top of the glass globe or
cylinder, instead of the devices usually employed for such purposes which necessi-
tate boring holes in the tubes and brazing-in two pins-an arrangement causing
weakness and liability of breakage. Although I preferably adopt the arrange-
ment of a bye-pass main and check device above described, I may employ the
combination of a bye-pass main with a suitable check contrivance in other forms,
without departing from the principle of my invention.
Dated this Twelfth day of Wabrua 1807
Improvements in Outside Lamps or Lanterns for use with Gas or
other Methods of Lighting.
•
I, EDWARD JOHN SHAW, of Astral Works, Hatherton Street, Walsall, in the
County of Staffordshire, Lamp and Glass 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:-
This invention relates to certain improvements in outside lamps or lanterns
for use with gas or other methods of lighting, and has for objects:-
-
1st. The combination with such lamps and lanterns of a bye-pass check main
so arranged as to avoid the possibility of the bye-pass flame being extinguished
by a sudden jerk or movement as frequently occurs in bye-pass lamps of ordinary
construction when the full pressure of gas is turned on or off.

page_text: 2nd. A novel arrangement of a compound reservoir for supplying gas to the
burners and to the bye-pass tubes, whereby a sufficient supply of gas is reserved
to "tide" over the change from bye-pass flame to full flame and vice versa.
3rd. The attachment underneath the burners of a glass cup or screen to wholly
or partially screen the burners, and made of clear or colcured glass, or of partially
clear and partially coloured glass, for the more effective illumination of the con-
tents of a shop window.
A further subsidiary object consists in an improved device for supporting the
glass cylinder and cover upon the lamp.
In order to attain the above objects, I construct my improved lamp or lantern
preferably in the manner hereinafter described, and my invention will be more
clearly understood by reference to the accompanying drawings, on which,
Figure 1 is a front elevation of an outside lamp constructed according to my
invention, and provided with three burners and bye-pass jets.
Figure 2 being a section on an enlarged scale of the bye-pass main and check
device seen from above.
Figure 3, a vertical section of the compound reservoir for supplying the burners
and bye-pass jets; and
Figure 4 is an elevation on a reduced scale of a glass screen in position on the
lamp.
66
"
In carrying out my invention I suspend my improved lamp or lantern-which
is preferably formed of an oblong frame A, A¹ supporting the burners B as in
pendants of existing forms-from the underside of a bye-pass main C connected
to the service pipe by a short pipe I screwed thereon. Within this main is
provided a cock E furnished with a bye-pass communicating through a passage F
formed in a lateral extension or elbow G of the main C with a narrow vertical
tube I connected with one down-pipe A' of the lamp. This down-pipe which
feeds the bye-pass flame as described below, is not in communication with the
other down-pipe A which supplies gas to the burners proper as also described
below.
A cross-lever K may be secured upon the supply cock and provided with chain
and rings in the usual manner to facilitate the operation of the same.
main"
The passage F between the cock E and the vertical tube I is provided at the
end near its connection with such tube, with an adjustable screw stop or
regulator L terminating outside the elbow or lateral extension G of the
in a milled head, by turning which the passage F may be more or less closed so
as to regulate the feed of the bye-pass flame; or, when desired, by screwing the
regulator L home the orifice of the passage F may be entirely closed, or plugged.
The burners B which may be two or more in number, as also the corresponding
bye-pass jets B1, are secured upon a compound reservoir M divided into an upper
and a lower chamber, and having openings N, N¹ on opposite sides to admit the
respective down-pipes A, A¹. One of these openings N is connected to the supply
pipe A by which gas is conveyed from the chief or under outlet of the bye-pass
main; and the other opening N¹ is connected to the supply pipe A¹ communi-
cating with the bye-pass elbow G. The upper chamber Of of the reservoir M
which is in the form of a circular passage, establishes communication between the
bye-pass burners B and their feed-pipe A', while the lower chamber O similarly
connects the burners proper B with their supply-pipe A, the arrangement being
such that the bye-pass burners B¹ are placed inside or nearer to the centre of
the reservoir M than the burners proper B, which are situate outside them.
In order to prevent the occurrence of sudden jerks in the flow of gas and the
consequent extinction of the bye-pass flame when the full pressure is turned on or
off, I provide a check device in connection with the bye-pass main. This con-
sists preferably of a drilled branch or boss formed on or secured to the main,
within which tube a spiral spring P with screw adjustment R (Fig. 2) is arranged
to act upon a small sphere or ball Q which falls into a corresponding indenta-
tion S made in the plug of the main when the cock E is being turned either to

page_text: shut off or to admit the full pressure of gas. By this arrangement the resistance
of the spring P retards the rotation of the plug at an intermediate position for a
sufficient interval to ensure the uniform flow of gas through the bye-pass tubes.
The burners proper may be severally provided with incandescence mantles of
any desired construction and enclosed within a cylindrical glass casing: Or, a
glass screen or cup V of suitable pattern may be supported below the burners
upon a central screw or pin secured to the underside of the burner reservoir, and
provided with a suitable removable collar U screwed internally to correspond with
it. The glass cup may be made either of clear or partially clear glass, or of
partially coloured glass, so that a coloured light may be shewn to the street, and
à clear light shewn to the shop window. If desired, any suitable decorations or
inscriptions may be applied on the glass screen or cup V.
I may also secure two metallic discs or washers T, Fig. 1, at a suitable position
on the down tubes A, A¹ where required for supporting the cover and top of the
glass globe or cylinder, instead of the devices usually employed for such purposes
which necessitate boring holes in the tubes and brazing in two pins, an arrange-
ment causing weakness and liability to breakage.
Although I preferably adopt the arrangement of a bye-pass main and a check
device as above described, I may employ the combination of a bye-pass main with
a suitable check contrivance of other constructions, without departing from the
spirit of my invention.
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 gas lamps or lanterns for outside use, the combination with a bye-pass
main of a check device consisting of a drilled branch or boss G formed on or
joined to the main, a spiral spring P arranged within said tube and exerting
pressure upon a small sphere or ball Q, and a corresponding indentation S formed
in the plug of the main to receive said ball, as and for the purposes specified.
(2). In outside gas lamps or lanterns, the combination with a bye-pass main
of a check device, as and for the purposes described.
(3). In gas lamps or lanterns for outside use and provided with a bye-pass, a
compound reservoir M having a separate upper and lower chamber connected
respectively with one or more bye-pass burners B¹, and with ordinary burners B,
the upper chamber 0¹ being in communication with the bye-pass supply pipe A¹,
and the lower chamber O communicating with the main supply pipe A, for the
purposes and as described with reference to the accompanying drawings.
(4). An outside lamp or lantern for use with gas or other methods of lighting,
comprising separate supply pipes A, A¹, for the burners and bye-pass jets, a
check device connected with the bye-pass main, a compound reservoir divided into
upper and lower chambers communicating separately with the supply pipes A, A¹,
and with the burners and bye-pass jets, and a glass screen or cup V of plain or
coloured glass, attached below the burner reservoir, the whole constructed, com-
bined and operating as and for the purposes described.
Dated this Eighth day of November 1997.
Dated His Mignon day
TO
1001.
For the Applicant,
GEDGE & FEENY,
60 Queen Victoria Street, London, E.C., Chartered Patent Agents.