IMPROVEMENTS IN GAS & OTHER LAMPS
Year: 1861

page_text: LETTERS PATENT to Edward Curtis Kemp, of Avon Place, Pershore
. Road, Birmingham, in the County of Warwick, Agent, & Thomas
Hall, of Basinghall Street, Leeds, in the County of York, Gas Engineer,
for the Invention of "IMPRESS
T
Sealed the 5th November 1861, and dated the 15th May 1861.
PROVISIONAL SPECIFICATION left by the said Edward Curtis Kemp
and Thomas Hall at the Office of the Commissioners of Patents, with
their Petition, on the 15th May 1861.
We, EDWARD CURTIS KEMP, of Avon Place, Pershore Road, Birmingham,
in the County of Warwick, Agent, & THOMAS HALL, of Basinghall Street,
Leeds, in the County of York, Gas Engineer, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN GAS & OTHER LAMPS," to be as
follows:-
Our improvements in lamps relate principally to that class of lamp known
as a hall lamp, but which may be used for other purposes. This class of
lamps are usually made with frames of hexagonal, octagonal, or other forms,
having vertical pillars or styles at the angles which receive and support the
glasses of the lamp, and lamps have also been formed in which the surrounding
glass has been suspended in the form of drops hanging exterior to an upper
framework, also with one cylinder of glass supported by two metal rings.

page_text: Now according to our Invention we form lamps with an upper and lower
frame connected by pillars or ties disposed interior of the glass, which is
received in grooves, recesses, or on studs, in such frames. The glass may be
of any suitable form, and consists of a series of strips or sections of plate or
moulded glass, the vertical edges of which are disposed in close contact all
round the lamp, which may be circular or of other form desired. These flat
strips or sections may have bevilled edges of greater or less breadth, or in cross
section may be altogether of a triangular form, by preference with one obtuse
& two very acute angles. The upper and lower frames are held together by
metal rods or ties placed interior of this glazing, which ties may be covered in
glass or otherwise ornamented. The upper frame may be surmounted with
a dome-top of glass, or otherwise, and have a door frame & glass in the bottom
for access to the lamp. Instead of the glass, as before described, the glazing
may consist of prisms, cylinders, or other forms of glass placed in close
proximity or contact with each other all round, and held in position by the
ends being embraced by the grooves or studs in the upper and. lower frames.
Instead of the internal pillars or ties before mentioned the glazing may be so
fixed to the upper and lower frames as to connect them without any other con-
nections; or two, three, or more pieces of the glazing may answer that purpose,
& the other pieces be simply inserted in position as before described; or, by
preference, the sections of glass can be inserted through interior openings
made of suitable form upon the upper or lower ring, whereby the glasses may
be more easily inserted, & whereby they are guided and sustained.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Edward Curtis Kemp and Thomas Hall in the Great Seal
Patent Office on the 15th November 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, EDWARD
CURTIS KEMP, of Avon Place, Pershore Road, Birmingham, in the County
of Warwick; Agent, & THOMAS HALL, of Basinghall St., Leeds, in the
County of York, Gas Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of May, in the year of our Lord
One thousand eight hundred and sixty-one, in the twenty-fourth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto us,
the said Edward Curtis Kemp and Thomas Hall, Her special licence that

page_text: we, the said Edward Curtis Kemp & Thomas Hall, our executors, adminis-
trators, and assigns, or such others as we, the said Edward Curtis Kemp
and Thomas Hall, our executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after 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 "IMPROVE-
MENTS IN GAS AND OTHER LAMPS," upon the condition (amongst others) that
we, the said Edward Curtis Kemp and Thomas Hall, our executors or
administrators, by an instrument in writing under our, or their, or one of
their hands and seals, should particularly describe and ascertain the nature
of the said 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.
NOW KNOW YE, that we, the said Edward Curtis Kemp and Thomas
Hall, do hereby declare the nature of our said Invention, and in what
manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement, reference being had to the Sheet of
Drawings hereunto annexed, and to the letters and figures marked thereon
(that is to say):
Our improvements in lamps relate principally to that class of lamp known
as a hall lamp, but which may be used for other purposes. This class of lamp
is usually made with frames of hexagonal, octagonal, or other forms, having
vertical pillars or styles at the angles which receive and support the glasses of
the lamp; and lamps have also been formed in which the surrounding glass
has been suspended in the form of drops hanging exterior to an upper frame-
work, also with one cylinder of glass supported by two metal hinges. Now,
according to our Invention, we form lamps with an upper & lower frame, con-
nected only by pillars or ties disposed interior of the glass; which is received in
grooves, recesses, or on studs in such frames. The glass may be of any suit-
able form, and consists of a series of strips or sections of plates of moulded.
glass, the vertical edges of which are disposed in close contact all round the
lamp, which may be circular or of other form desired. These flat strips or
sections may have bevilled edges of greater or less breadth; or in cross section
may be altogether of a triangular form, by preference, with one obtuse and
two vertical angles. The upper and lower frames are held together by metal
rods or ties placed interior of this glazing, which ties may be covered in glass

page_text: or otherwise ornamented. The upper frame may be surmounted with a dome
top of glass or otherwise, and have a door frame and glass in the bottom for
access to the lamp. Instead of the glass, as before described, the glazing may
consist of prisms, cylinders, or other forms of glass placed in close proximity"
or contact with each other all round, and held in position by the ends being
embraced by the grooves or studs in the upper and lower frames; by pre-
ference the sections of glass can be inserted through openings made of suitable
form in the upper or lower ring in which the glasses are guided and sustained,
and furthermore will be more easily inserted and removed. Instead of the
internal pillars or ties before mentioned; the glazing or strips of glass may be
so fixed to the upper and lower frames as to connect them without any other
communication, or two, three, or more pieces of the glazing pieces may answer
that purpose, and the other pieces be simply inserted in position, as before
described. To effect this holes may be bored through the ends of the strips of
glass corresponding with horizontal holes in the framing, through which holes
suitable pins may pass & be screwed or otherwise fixed, & so secure all these
parts together in position, as before described.
DESCRIPTION OF DRAWINGS.
Fig. 1 represents a side elevation of a lamp constructed according to our
Invention, and Fig. 2 a plan of the same. a, b, are the rings or parts of the
frame of the lamp to support the glass, the outer part of which may be of
more or less ornamental character, and may be made separately, but affixed
to the plates c, d, (they actually sustaining the glass); the frame d is furnished
with three internal lugs e, e, into which are fixed the tie rods f, f,f, by nuts or
otherwise, while the frame c is furnished with three arms h, extending to the
centre socket g, from which the lamp is supported. The positions of the arms
h coincide with the positions of the lugs e, so that the upper parts of the rods f,
being fitted & fixed into the arms h by nuts screwed on the upper ends of the
rods or otherwise, the upper and lower frames a, b, c, d, thus held together,
constitute the whole framework of the lamp. The lamp is glazed by intro-
ducing a number of vertical strips of glass x, one of which is separately
represented full size in Figs. 3, 4, & 5; Fig. 3 being a front view, and
Fig. 4 an edge view thereof, while Fig. 5 is a plan of the same. We make
this, by preference, of plate glass (it may be otherwise formed if desired) cut
into strips of suitable width, from which the angles are cut off and bevilled,
as seen in Fig. 5; we also narrow the top of each a little to suit openings i in
the upper frame c, in which they fit and are held. The lower frame may be

page_text: furnished with like recesses
on the upper surface to hold the lower ends of
the strips of glass, but should not be open though, as is the case in the upper
ones, but should have solid bottoms, in order that the lower ends of the glass
strips & may rest thereon. Instead of the openings or recesses in the lower
frame d, the holders of the glass may simply be two circular ribs, or it may be.
a series of pins or studs projecting upwards, whereby to hold the several strips
of glass in their several positions. The lower frame d is furnished with a
door & suitably glazed, in the centre, with a small sheet of ornamental or plain
glass; this door is hinged on one side so as to open downwards, and is fur-
nished with a suitable fastening to secure it in position, as in ordinary hall
lamps. The pillars f we prefer to enclose in twisted glass tubes, showing
a spiral or ornamental twist on the exterior, or they may be silvered or other-
wise ornamented to hide the metal pillars or connecting bars f. We also
similarly enclose and oruament the central pendant pipe for the gas burner
or support of the light inside the lamp. In the Drawing annexed the gas pipe
is shown with two burners, but it may be bent & one light only used, disposed
in the centre of the lamp. The strips of glass a, as will be seen in Fig. 1, are
placed in close proximity to each other & occupy the entire circumference of
the lamp, presenting a handsome object and well adapted for the diffusion of
light, it being refracted and radiated in all directions. The lamp are prefer to
be of a cylindrical form, but it may be hexagonal or of any other form suited
for disposing the glass strips in close proximity and continuously around the
entire circumference. We surmount the lamp by a dome top m of glass, cut
or plain, or it may be of other material suitable for a reflector or consumer, as
glasses of gas lights in that position are sometimes called; p is the pendent
pipe or support for the lamp, which depends from a ball & socket as usual
for gas lights, or it may be merely a rod, if to support an oil or other lamp.
The glass, instead of being bevilled at the edges only, may be altogether of a
triangular form, as represented in side view & section in Figs. 6 & 7, or with
a greater number of facets, as shown in side view at Fig. 8, and in section,
Fig. 9; or they may even be in the form of prisms, as shown at Figs. 10
& 11, one of the angles of which may be ornamentally cut, in the manner of
lustres, to enhance the brilliancy of the effect. In all these variations the
recesses i, ¹, or other supporting points of the frames c & d must of course
be adapted to each individual form of the glass strips. For further variation,
the glass strips may be a combination of the different forms represented or
others.
Having described the nature of our Invention, and the manner of performing

page_text: the same, we declare that what we claim as our Invention to be protected by
the herein-before in part recited Letters Patent is, the construction of lamps
in which the glass or glazing consists of a series of strips or pieces of glass
held in position without any vertical external frame, disposed and: arranged
in, the manner herein-before described.
In witness whereof, I, the said Edward Curtis Kemp, on behalf of myself
and the said Thomas Hall, have hereunto set my hand and seal, this
Fifteenth day of November, in the year of our Lord One thousand
eight hundred & sixty-one.
Witness,
W. CLARK,
Patent Agent,
53, Chancery Lane,, London.
EDWP. C. KEMP. (L.S.)