IMPROVEMENTS IN THE MANUFACTURE OF RAILWAY STATION AND OTHER GAS LAMPS
Year: 1865

page_text: LETTERS PATENT to John Joseph Parkes, of London Street, Paddington,
in the County of Middlesex, Gas Engineer, for the Invention of
"IMPROVEMENTS IN THE MANUFACTURE OF RAILWAY STATION AND OTHER
GAS LAMPS."
Sealed the 6th April 1866, and dated the 10th October 1865. .
PROVISIONAL SPECIFICATION left by the said John Joseph Parkes at
the, Office of the Commissioners of Patents, with his Petition, on the
10th October 1865.
I, JOHN JOSEPH PARKES, of London Street, Paddington, in the County of
Middlesex, Gas Engineer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN THE MANUFACTURE OF RAILWAY STATION AND OTHER GAS
LAMPS," to be as follows:-
My Invention relates to the construction of lamps of a class forming the
subject of a Patent granted to me, bearing date 26th June 1862, No. 1876,
which lamps are particularly applicable for railway stations, or on large
exposed areas, either enclosed or open, the great object of the improvements
being to produce a glazed lamp, the frame of which shall throw little or no
shadow, and yet at same time possess the requisite strength, and also facilities
for lighting and cleaning the lamp. According to my improvements I make
the ribs which stand in vertical planes of a strip of copper or other metal

page_text: drawn into the form of a round (in cross section) bead, with narrow flanges,
one on either side throughout the length. The parts of the metal where
curled to form the bead do not touch, a narrow space being left between for the
reception of a rib or feather piece on edge, which projects from the flat or flange
side of the bead and inside the lamp. These ribs are mounted in circular
bands above and below, pins entering the ends of the beads through the bands,
the whole being rivetted and soldered together. A metal band is carried
round at the largest diameter of the lamp united to the whole of the upright
ribs, this mid band is of a half round bead-like form with flanges of a
larger size than the upright ribs, which are dovetailed across and into it flush
on the inside. This band is also strengthened by a rib or edge in the interior
of the bead which is introduced in sections between the feathers of the upright
ribs and flush therewith, these projecting ribs or feathers inside the lamp serve
to receive the glass which is puttied therein and introduced from the inside;
there are six (more or less) pieces of glass in the upper half and six in the
lower, each piece being in the form of a section of a sphere. The top ring is
double, one, part being, fixed to the upright ribs,, the other part, fitting, within
the fixed one and rotating therein freely, but held by pins, working, in slots.
This movable, ring-supports the door of the lamp, at the top,, which.door con-
sists of one of the sections of glass fixed in a separate frame,;, the, door is
further supported at bottom by a part or parts fitted in a slot or slots in the
large mid bead, in the direction of which it is traversed round in opening or
closing the said door. This door is formed of a light frame of U-shaped
metal to receive the glass, and lie close on the outer surface of the lamp,
the glass of the upper half of the lamp in addition to the holding of
the putty to keep it in place- is received' at its upper edge between two
flange-like parts of the upper fixed ring. These lamps are suspended by
three, rods or. tubes, one, forming, the gas, duct, which, unite, with the lamp
at equidistant, points, around the mid, beads, and at points, where the upright
ribs intersect. To make the junction of the suspending parts, I apply a hall or
enlarged globe-like piece, having at one part a four "pronged, like projection.
which, fits in, and, embraces the intersecting, parts of the ribs and, mid band,
the whole being fixed through with; a. pin, and soldered, in that pendant
conducting the gas I. make, the four pronged-like, pieces separate from the ball
or enlargement,, which, in, this, case, embraces also the, stop-tap, the nexts
being fixed together by a hollow nipple, instead, of the pin before mentioned
hut also soldered in addition: The gas passes, from this point to the burner
through one of the upright, ribs instead of, by a, tube, within the lamp as
fpryerly,, ap.upright, stand, pipe, from, the bottum, ring; anch gastrib.carries the

page_text: burner: The felther, in the gas rib is omitted on the interior of the:bead to leave
the channel free. The top-piece or canopy in which the three rods unite
I cast hollow in one piece, instead of forming it in pieces as formerly; I tin the
whole of the metal of the lamp to protect it from the action of the gas..
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Joseph Parkes in the Great Seal Patent Office on the
10th April 1866.
:
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
JOSEPH PARKES, of London Street, Paddington, in the County of Middlesex,
Gas Engineer, send greeting:
:
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent; bearing date the Tenth day of October, in the year of our Lord' One
thousand eight hundred and sixty-five; in the twenty-ninth year of Her reign,
did, for Herself; Her' heirs and successors, give and grant unto me, the said
John Joseph Parkes; Her special: licence that I, the said John Joseph.
Parkes my exécutors, administrators; and assigns, or such others as I, the said
John Joseph Parkes, my executors, administrators, and assigns, should at any
(time agree with, and no others, from time to time and at all times thereafter
during the term therein expressed; should and lawfully might make, use,
'exercise; and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
THE MANUFACTURE OF RAILWAY STATION AND OTHER'GAs Lamps;" upon the con-
dition (amongst others) that I, the said John Joseph Parkes, my executors
"or administrators, by an instrument in writing under my, or their, or one
of their hands and seals should particularly describe and ascertain the nature
of the shid Invention; and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within six
'calendar months next and immediately after the date of the said. Letters
Patent
..
".
15
NOW KNOW YE, that I; the said John Joseph Parkes,: do hereby declare
the nature of my said Invention; and in what manner the same is to be
perfornied to be particularly described and ascertained in and by the
following statement, reference being had to the two Sheets of Drawings here-
'unto'annexed, and to the letters and figures' marked thereon (that is to say:) :-
My Invention relates to the construction of lamps of a' class forming the
subject of a Patent granted to me, bearing date the 26th day of June, 1862,

page_text: Number 1876, which lamps are particularly applicable for railway stations, or
in large exposed areas, either enclosed or open, the great object of the improve-
ments being to produce a glazed lamp; the frame of which shall throw little
or no shadow, and yet at same time possess the requisite strength, and also
facilities for lighting and cleaning the lamp.
According to my improvements I make the ribs which stand in a vertical
plane of a strip of copper or other metal, drawn into the form of a round
bead in cross section with narrow flanges, one on either side throughout the
length. The parts of the metal where curled to form the bead do not touch,
a narrow space being left between for the reception of a rib or feather piece
on edge, which projects from the flat or flange side of the bead and inside the
lamp. These ribs are united in a circular band above and below, pins entering
the ends of the beads through the bands, & the whole being riveted and
soldered together. A metal band is carried round at the largest diameter of
the lamp, united to the whole of the upright ribs; this mid band is of a half
round bead-like form with flanges and of larger size than the upright ribs
which are dovetailed across and into it flush on the inside. This band is also
strengthened by a rib on edge in the interior of the bead, which is introduced
in sections between the feathers of the upright ribs and flush therewith; these
ping ribs or feathers inside the lamp serve to receive the glass, which is
puttied therein and introduced from the inside.. There are six (more or less)
pieces of glass in the upper half and six in the lower, each piece being in the
form of a section of a sphere. The top ring is double, one part being fixed to
the upright ribs, the other part fitting within the fixed one and rotating therein
freely, but held by pins working in slots; this movable ring supports the door
of the lamp at the top, which door consists of one of the panes of glass fixed
in a separate frame; the door is further supported at bottom by a part or
parts fitted in a slot or slots in the large mid bead, in the direction of which
it is traversed round in opening or closing the said door. This door is formed
of a light frame of U-shaped metal to receive the glass and lie close on the
outer surface of the lamp. The glass of the upper half of the lamp, in addition
to the holding of the putty to keep it in place,' is received at its upper edge
between two flange-like parts of the upper fixed ring. These lamps are
suspended by three rods or tubes, one forming the gas duct which unite with
the lamp at equidistant points around the mid bead, and at points where the
upright ribs intersect. To make the junction of the suspending parts, I apply
a ball or enlarged like piece, having at one part a four pronged like projection
which fits on and embraces the intersecting parts of the ribs and mid band,
the whole being fixed through with a pin and soldered in that pendant

page_text: เ
sufficient strength to render the lamp frame firm and compact. The ribs or
beads a are dovetailed into the mid band, so that the flanges are flush both
on the inside and outside, and as seen by referring to Fig. 6, I also apply a
feather piece h to the mid bead, which is received in the hollow formed on
the inside by the half-round bead; this feather piece h is continued in sections
all round the lamp between the vertical feathers g, and serves..to secure the
glass in a similar manner, being fixed in position by means of short pieces.of
the small beads a fitted within the mid bead in which the feather is placed,
and the whole then soldered together. The glass panes f, which are in the
form of sections of spheres, six in number for each half of the lamp, are
introduced from the inside, and secured by means of putty. on the inside
surface of the flanged ribs, the edges being received between the feathers g, h,
as before mentioned, also resting on the flanges of the upper and lower
rings b, c. The-door is disposed at the upper half of the lamp, being of equal
size to one of the sections, it is fitted to slide round in the direction of the
circumference of the lamp in opening or closing it, and consists of a pane of
glass received in a metal frame or bead i, as seen in the section, Fig. 3, it
being supported.at bottom by a part j sliding on the mid bead, and also by a
tongue piece k moving in a groove made in said bead. The door frame is
connected to a ring m encircling the top ring. b. before mentioned, being
secured, thereto by means of a pin n running in a slot in b, as seen in partial
section, Fig. 2. The door lies close on the outside of the lamp, for which
purpose I dispose a flat metal band or frame o immediately under the points
of extreme width of the door, on which it slides freely, instead of the round
bead at each of the other divisions of the lamp frame. The lamp is suspended
by three-rods or tubes p, p, from a head or canopy 9, which is cast hollow in one
piece and connected: to a. ball and socket and vertical rod r depending from
the point of suspension. The rods'p are united to the mid bead e of the lamp
at equidistant points, by means of balls or knobs. s,, separately represented, in
plan and elevation at Fig. 7, having. bosses, or enlargements formed thereon
embracing the mid and upright beads when in position. and soldered thereto,
and fixed, by through. pins from above. One of the rods. p forms a channel
for the gas, which passes downwards to the knob to furnished with a cock,
and thence through the bead a to the burner u,.fixed to the bottom ring of the
lamp. In order to afford. passage. for the gas the rib or feather 9. is.omitted
in the interior only, of the bead.al, but projects inside the lamp, as before. The
boss of knob t is formed.separately therefrom, the parts. being fixed together
in addition: to soldering. by a hollow nipple v instead of a pin, as before.
g.
Having described. the nature of my-Invention, and the manner of performing

page_text: conducting the gas. I make the four pronged like piece separate from the
ball or enlargement, which in this case embraces also the stop-tap, the parts
being fixed together by a hollow nipple instead of the pin before mentioned,
but also soldered in addition. The gas passes from this point to the burner
through one of the upright ribs, instead of by a tube within, the lamp as
formerly; an upright stand pipe from bottom ring and gas nib carries the
burner. The feather in the gas rib is omitted in the interior of the bead to
leave the channel free.
The top piece or canopy in which the three rods unite I cast hollow in one
piece, instead of forming it in pieces as formerly. I tin the whole of the metal
of the lamp to protect it from the action of the gas.
DESCRIPTION OF DRAWINGS.
Fig. 1 of the accompanying Drawings shows a side elevation of my improved
lamp, Fig. 2 a plan, and Fig. 3 a vertical section of same on line 1, 2, Fig. 2,
while Figs. 4, 5, 6, and 7.show parts detached.
a, a, are the vertical ribs forming the framing of the lamp, portions of the
metal being seen separately on an enlarged scale in plan, side view, and cross
section at Fig. 4. These ribs are disposed at equal distances apart; so as to
form six divisions in each half of the lamp, which is of, globular form. The
ribs are united at top and bottom to rings b, c, of metal by means of pins d
projecting from the rings, as seen dotted in Fig. 2, to which the ribs are
soldered and firmly secured. A mid ring or bande of metal is further
carried round at the point of largest diameter of the lamp through which the
vertical ribs a pass, as seen in the detached views, Fig. 5, which shows a
portion of the mid bead in front and end views, while Fig. 6 shows a space
cut in the mid bead for receiving the upright ribs, and also front and side
views of the same connected together. The vertical ribs being firmly united
by soldering to the upper and lower rings and to the mid bands form a
compact and solid frame to receive the glass of the lamp. The ribs a I make
of strips of copper, of which, in fact, the whole of the frame of the lamp is
composed, tinned to resist the action of the gas. These strips are drawn of a
round bead-like form with narrow flanges on either side to receive the 'panes
of glass f, which are further secured on each edge by a vertical rib or feather-
piece g, placed edgewise in the hollow formed on the inside of each bead a
throughout its length, and soldered securely thereto, its edge projecting
sufficiently to form a ledge or holding surface for the glass finside the lamp,
as above mentioned. The mid band I form of a half-round bead with
flanges on either side. of about twice the diameter of the beads a, to be of

page_text: the same, I declare that what I claim as my Invention to be protected by the
herein-before in part recited Letters Patent is, the arrangement and combi-
nation of parts herein-before described and represented in the Drawings
annexed in the manufacture of railway station and other gas. lamps.
In witness whereof, I, the said John Joseph Parkes, have hereunto set
my hand and seal, this Tenth day of April, in the year of our Lord
One thousand eight hundred and sixty-six.
Witness,
W. CLARK,
Patent Agent,
53, Chancery Lane,
London.
JOHN JOSEPH PARKES. (LB.).