A LAMP OR LANTHORN UPON AN IMPROVED CONSTRUCTION, WHICH MAY BE USED WITH OR WITHOUT A REFLECTOR, FOR THE CONVENIENCE OF TRAVELLING CARRIAGES, AND OTHER USEFUL PURPOSES
Year: 1802

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
DAWSON, of James Street, Long Acre, in the Parish of Saint Martin-in-the-
Fields, and County of Middlesex, Tin Plate Worker, send greeting.
WHEREAS His most Excellent Majesty King George the Third did,
by His Letters Patent under the Great Seal of His United Kingdom, bearing
date at Westminster, the Twenty-fifth day of November, in the forty-third
year of His reign, give and grant unto me, the said Thomas Dawson,
His especial licence that I, the said Thomas Dawson, during the term of years
therein mentioned, should and lawfully might make, use, exercise, and vend,
within England, Wales, and the Town of Berwick-upon-Tweed, my Invention
of "A LAMP OR LANTHORN UPON AN IMPROVED CONSTRUCTION, WHICH MAY BE USED
WITH OR WITHOUT A REFLECTOR, FOR THE CONVENIENCE OF TRAVELLING CARRIAGES,
AND OTHER USEFUL PURPOSES;" in which said Letters Patent there is contained
a proviso obliging me, the said Thomas Dawson, by an instrument in writing
under my hand and seal, to cause a particular description of the nature of
my said Invention, and in what manner the same is to be performed, to
be inrolled in His Majesty's High Court of Chancery within one calendar
month after the date of the said recited Letters Patent.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Thomas Dawson, do hereby declare that my said Invention is described in the
Drawings and description thereof hereunto annexed.
In witness whereof, I, the said Thomas Dawson, have hereunto set my
hand and seal, this Twenty-fourth day of December, One thousand
eight hundred and two.
THOS DAWSON. (L.S.)

page_text: DESCRIPTION OF THE DRAWINGS.
Fig. 1 represents a circular lamp or lanthorn made to fit into and turn half
round in Figs. 2 and 3, & when united or joined by solder or otherwise,
forming a case, blind or shade for Fig. 1, for shading or darkening the light
when required. A, is a small bolt or pin made to pull up and push down, and to
bolt into tube B, for the purpose of fastening door C when shut. D is a
ring, knob, &c., by which the lamp or lanthorn is turned when put or placed
in the blind or shade, Figs. 2 and 3, for the purpose of shading the light
and preserving the glass. Fig. 1, when put or placed in Figs. 2 & 3, is
united or made fast thereto, by a hasp or other proper fastening fixed or
attached in the usual way to the top of the case. E is a small tube or hole
to receive the catch or contrivance A in Fig. 4, for the purpose of fastening or
uniting Fig. 1 to Fig. 2. In this case a common barrel is used therewith, for
the convenience of turning the lamp or lanthorn round by the barrel in the
case, shade, or blind.
Fig. 2 represents part of a case, shade, or blind, which may be either united to
Fig. 3 or to a common barrel, as before described. Fig. 2 may also be made
to turn round on the outside of the circular lamp or lanthorn, if required. In
that case the lamp or lanthorn must be attached or fixed to the carriage in the
usual way, and an aperture or opening made in a case, blind, or shade of
sufficient length and width to admit the fastening of the lamp or lanthorn, so
that the case may freely turn round backwards and forwards when the lamp or
lanthorn is wanted to be darkened.
Fig. 4 represents the bottom of Fig. 2, with the addition of A, a catch or
contrivance for uniting the same to Fig. 1, as before described.
Fig. 5 represents a square lamp, made nearly in the usual way. The door
may either be made to open and shut, as Fig. 1, or let down by a hinge placed
or fixed at the bottom thereof, and fastened at the top a bolt or pin to a
tube adjoining to the door.
Fig. 6 represents a square case, shade or blind, made to receive Fig. 5.
When Fig. 5, placed in Fig. 6, is wanted to be shaded or darkened, it must be
taken out and reversed, with the glass next the back part of the case, shade,
or blind, and vice versa when light is again wanted.
Fig. 7 represents the rim or top of Fig. 6. A, A, are hasps or other
fastenings for uniting or fastening the lamp or lanthorn to Fig. 6.
Thus have I given what I conceive to be a plain description of two of the
most common formed lamps or lanthorns in use, which will be sufficient for
any workman of common abilities not only to make the same, but every other

page_text: description of lamps or lanthorns to which the principle of my Invention can
be applied, such as ovals, oval circulars, octagons, sextagons, globular,
triangular, & Italian (or round fronts and square sides), which differ only
from the above described lamps or lanthorns in form or shape; the sole
application of my principle therefore to which, as well as to all other lamps or
lanthorns to which my Invention can be applied, I claim, as constituting my
Invention. The case is so constructed as to act as a shade or blind to circular,
square and other shaped carriage or other lamps or lanthorns, for the purpose
of shading or darkening the light when required, and preserving the glass from
being broken; and if any accident should happen to the carriage, that the
same may be taken out of their cases, &c., and used as hand lanthorns, and at
pleasure replaced again.
AND BE IT REMEMBERED, that on the same Twenty-fourth day of
December, in the year above mentioned, the aforesaid Thomas Dawson
came before our Lord the King in His Chancery, and acknowledged the
Specification aforesaid, and all and every thing therein contained, in form
above written. And also the Specification aforesaid was stamped according
to the tenor of the Statute in that case made and provided.
Inrolled the same Twenty-fourth day of December, in the year above
written.