A NEW AD INBRAUED LIME LOS ADDADATIS FOR TITOGAT VTSα
Year: 1875

page_text: LETTERS PATENT to William Charles Hughes, of 151, Hoxton Street,
in the County of Middlesex, Optician, for the Invention of "A NEW
AD INBRAUED LIME LOS ADDADATIS FOR TITOGAT VTSα Πτηνο 19
Scaled the 30th November 1875, and dated the 29th July 1875.
PROVISIONAL SPECIFICATION left by the said William Charles Hughes
at the Office of the Commissioners of Patents, with his Petition,"
on the 29th July 1875.
I, WILLIAM CHARLES HUGHES, of 151, Hoxton Street, in the County
of Middlesex, Optician, do hereby declare the nature of the said Inven-
tion for "A NEW OR IMPROVED LIME LIGHT GAS APPARATUS FOR DISSOLVING
VIEWS," to be as follows:-
The bodies of the lantern are constructed and made of either brass,
tin, iron, copper, silver, gun metal, zinc, or any other metal known, in a
cylindrical or circular form, and having inner linings, each one separate
from the outer casing. On the exterior body are a quantity of holes,
cither drilled or punched, which may be in any design, to allow the hot,

page_text: air which is generated by the burning of the gas within the lanterns
when in use to pass between the inner and outer bodies and escape
through the chimney placed on the top of cach lantern, a continual
draught being kept up by the cold air from the outside rushing through
the holes to force the warm air from the interior outside
The bodies are made to rest on separate cradle pieces, made of any
metal, which support each lantern body, and there held firm by a set of
screws, enables the Inventor to take the centre apparatus to pieces and
form a bi-cylindrical dissolving view gas apparatus perpendicularly, also
with an extra foot to place the lantern bodies side by side, and if required 1
by removing all the cradle pieces to form a single lantern, because the
lower lantern of the three rests on a foot. Besides this when the
apparatus is used in its entirety each lantern body being quite separate
and apart from its fellow there is not half the heat generated in the
interior as in the old form of lime light gas apparatus, as the old form of 1
these instruments are made in one piece, and have no hot air holes to
allow the hot air to pass off rapidly.
Another advantage is that the tri-cylindrical lime light gas-apparatus
can be made from 5 inches to 9 inches in length and 4 inches to 9 inches
in diameter according to the size of the lens used, and therefore will
only occupy half the space of the old form of apparatus
The gas holders which are attached, and which supply the gas to the
jets, being made either square, oblong, or circular, of either wood or
metal, bound with either waterproof, rubber cloth, cloth, silk, or leather,
is constructed to fold in close like a bellows, therefore occupies less
space, doing away with pressure boards, and more durable than the old
form of gas holder used with the old dissolving view gas apparatus, so
that the tri-cylindrical lime light gas apparatus for dissolving views is
altogether very unique, portable, and serviceable.
SPECIFICATION in pursuance of the conditions of the Letters Patent, 3
filed by the said William Charles Hughes in the Great Seal Patent
Office on the 28th January 1876
MO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-ninth day of July, in the year of our
Lord One thousand eight hundred and seventy-five, in the thirty-ninth
year of Her reign, did for Herself, Her hens and successors, give and
grant unto me, the said William Charles Hughes, Her special licence that
I, the said William Charles Hughes, my executors, administrators, and
assigns, or such others as I, the said William Charlos Hughes, 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 "A NEW
OR IMPROVED LIME LIGHT GAS APPARATUS FOR DISSOLVING VIEWS," upon the
condition (amongst others) that I, the said William Charles Hughes,
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 said Invention, and in
what manner the same was to be performed, and cause the same
to be filed in the Great Scal Patent Office within six calendar
months next and immediately after the date of the said Letters

page_text: The diameter of the lantern can range from 4 inches upwards,
according to the size of the condensers used. This cylinder has a back
and front piece, as Figs. 3 and 3, which is rivetted on the cylinder, only
in the front and entire circle is formed, as Fig. 5, H, on the back of
cylinder is rivetted and lunged a flap or stop, as H, Fig. 3, which will
close down over the back entrance of cylinder and block out the light.
In the interior of this cylinder there is fitted another cylinder, which
forms a lineing, and is fastened there by rivets, as Fig 4, 0, 0, 0, 0,
which is a side elevation, shewing the position of the inner lining or
case with the outer one of course in each cylinder, there being a circular
opening at the top, also a neck in the inner lincing, Fig. 4, D, which
just rises through the outer case, and when a chimney is fixed on
prevents any contact by heat to the outer case, the chimneys being curved
to allow of the upper onc, as B, B, Figures 1 and 2, and also which
allows the hot air to rush out from the interior, which is forced con-
siderably by the cold air rushing in from the outside through the hot air
WHO UNICO Inches, according to the Size Of the condensors
used Figures 4 and 3 showing the position of inner lining.
As another precaution against the heat conducting itself to the points
a circle of wood is placed, Figure 6, A, which is screwed on to the front
part of cylinder, as A, A, Figure 4, the circle of wood being made about
half an inch thick or more, and of either deal or mahogany, to the size
in diameter of the lantern it is used for, it being fastened to the front of
cylinder by 4 screws or rivets.
Figure 5 is a back section of the lantern showing the cylinder as it is
in the upper lantern. The inner lining therefore can be made either
quite circular, of partially so, as Figure 3, D, or curved, as dotted lines
show in Figure 5, O, O, to allow of the narrow sliding trays to fit in
Figures 7 and 8 are the cradle pieces, which support the body of
lantein or bodies, as Figure 1 and 2, II, H. Of course by these supports
as many bodies can be placed one above the other ad libitum. Figure 8
is the back cradle piece, and the shape of the Drawing, which is to allow
the back of the chimney to pass through These can be made either
in brass or gun metal, they form the third
of a circle, and the fiont

page_text: one works on a pivot or ball and socket, the pivot of which runs through,
see Figure 7, were dotted lines are
Figure 9 is the jet which supplys the light in the body of the lantern,
the drawing of which is an exact copy and size both in form and
dimensions; the object of this improved jet is to do away with soldering,
also to give a better lime pinion movement; B is the frame of lime
holder; II, the screw which holds it tight on to the pillar Z, A, A, are
brass clamps which are tightened on to the supply pipes 0, 0, by
Sciows T, T, K is the tap, of which there are two, which also allow of
the gases to
pass through the pipes O, O, into the chamber H, and are
made circular of course, this jet, like the lanterns, can be made any
required size.
The next appendage, which is an adjunct to the above, is the gas
holder which is to contain the gas or gases that supplies the jet or jets
in the interior of the lantern. This gas holder or gas bag can be made
either-square, oval-shaped, sexogonal, or circular, instead of in the old
form, being made as they are entirely of rubber cloth, 1 substitute a
wood top and bottom, and wood sides if necessary, as Figures 10 and 11,
Figure 12 shows plan of gas bag 10 and 11, side and end elevations The
sides and ends are hinged on by 24 brass lunges, and then covered round
with india-rubber cloths varying in thickness and quality, being cemented
to the cages with india-rubber solution, and afterwards tacked in with
brass headed nails.
Figure 14 is one made oval, or square, or circular, at pleasure, with the
corners rounded as per dotted lines, in this the wood sides are dispensed
with, merely the top and bottom being made of wood. The sides of this
arc entirely surrounded with gas proof india-rubber cloth of varied
thicknesses, and cemented to the top and bottom with india-rubber
solution, and further held there by strips of metal or wood being tacked
on with brass headed nails at various distances, sec dots round A and B,
on Figure 14; at the extremeties of the bottom piece B are attached by
screws two metal sockets E, E, into which are screwed two metal
uprights Z, Z, in the top piece A are fastened or screwed two rings H, II,
which slide down the iods Z, Z, and so give a steadying motion to
the gas holder when it closes, or as Figure 15, which must be made
The bottom piece of wood
squale or partially so, with rounded corners.
as above fixing into a shallow case not higher than the bag, when

page_text: closed into each corner of this case are fixed or screwed an iron or brass
rod, making four in all, and each rounded corner of top piece D are
fixed or screwed a circular ring as mentioned in Figure 14, which slide
down with the top piece, and so close compactly into the case F; the
bag in all other respects being constructed and made as Figure 14, only
using in this instance a shallow case, and four steadying rods O, O, O, O.
In this final Specification are combined strength, portability, and beauty
in the improved lime light gas apparatus for dissolving views.
In witness whereof, I, the said William Charles Hughes, have
hereunto set my hand and scal, this Twentieth day of January, in
the year of our Lord One thousand cight hundred and seventy-
six.
WILLIAM CHARLES HUGHES. (L.S.)

page_text: Side Elevation.
Shewing the inner and outer casings also the
probable distance the lining should be apart from
the outer casing also openings for chimney and screws
that hold the inner lining to the outer case_