CERTAIN IMPROVEMENTS IN. MODERATOR LAMPS
Year: 1855

page_text: LETTERS PATENT to Isidore Carlhian and Isidore Corbière, of Castle.
Street, 27, Holborn, London, and of Rue du Sentier, 26, Paris,
Lamp Manufacturers, for the Invention of "CERTAIN IMPROVEMENTS IN.
MODERATOR LAMPS."
Sealed the 24th July 1855, and dated the 2nd February 1855.
PROVISIONAL SPECIFICATION left by the said Isidore Carlhian and
.. Isidore Corbière at the Office of the Commissioners of Patents, with
their Petition, on the 2nd, February 1855.
We, ISIDORE CARLIIAN and ISIDORE CORBIÈRE, of Castle Street, 27,
Holborn, London, and of Rue du Sentier, 26, Paris, Lamp Manufacturers,
do hereby declare the nature of the said Invention for "CERTAIN IMPROVE-
MENTS IN MODERATOR LAMPS" to be as follows:-
Our improvements consist in enclosing the pinion that serves to wind up the
rack which works in the centre of the body of the lamp, in a small metallic
box, or covering it in any other suitable manner that may prevent it becoming
clogged by dust and other impurities. The said box or covering of the said
pinion may easily be removed therefrom by having one end piece of the
cylinder moveable, as a kind of lid, or by any other suitable arrangement.
.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Isidore Carlhian and Isidore Corbière in the Great Seal
Patent Office on the 1st August 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, ISIDORE
CARLIIAN and ISIDORE CORBIÈRE, of Castle Street, 27, Holborn, London, and
of Rue du Sentier, 26, à Paris, Lamp Manufacturers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Second day of February, in the year of our Lord
One thousand eight hundred and fifty-five, in the eighteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said Isidore Carlhian and Isidore Corbière, Her special licence that we,
the said Isidore Carlhian and Isidore Corbière, our executors, administrators,
and assigns, or such others as we, the said Isidore Carlhian and Isidore
Corbière, our 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 "CERTAIN IMPROVEMENTS IN MODE-
RATOR LAMPS," upon the condition, amongst others, that we, the said Isidore
Carlhian and Isidore Corbière, by an instrument in writing under our 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 Isidore Carlhian and Isidore Corbière,
do hereby declare the nature of our said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement, that is to say:-
Our improvements consist in enclosing the pinion that serves to wind up the
rack which works in the centre of the body of the lamp, so as to prevent the
said pinion from being clogged by dust and other impurities.
Fig. 1 in the accompanying Drawings is an elevation of a moderator lamp
with our improvements; Fig. 2 is a horizontal section of our improvements,
with the shaft, pinion, and handle, with portion of the lamp; Fig. 3 is an end
elevation of the same, with the rack. Similar letters of reference indicate
corresponding parts in the several Figures.
A. is the pinion and shaft, to which is attached or screwed on a key B. The
said pinion fits into and serves to wind up the rack C. D, the cylinder casing

page_text: fastened to (F) of the lamp, for the purpose above described; E, a small piece
fitting into one end of the casing, so that by removing it and taking away the
key B, the said shaft and pinion can be removed from the said cylinder casing.
We do not confine ourselves to a cylinder casing, as it may be made in a
number of forms, but the above we recommend, as it is a simple and easy
mode of removing the shaft & pinion from the casing.
Having thus described the nature of the said Invention, and the manner in
which the same is or may be carried into effect, we wish it to be understood
that what we claim is, the construction and application of the pinion which
serves to wind up the rack placed in the centre of a moderator lamp, in the
manner herein-before described, or any other substantially the same.
In witness whereof, we, the said Isidore Carlhian and Isidore Corbière,
have hereunto set our hands and seals, this Twenty-eighth day of July,
in the year of our Lord One thousand eight hundred and fifty-five.
ISIDORE CARLHIAN. (L.S.)
ISIDORE CORBIERE. (L.S.)