Improvements in Shades or Reflectors for Incandescent Electrio and other Lamps.
Year: 1895

page_text: Date of Application, 14th May, 1895
Complete Specification Left. 14th Feb., 1896-Accepted, 14th Mar., 1896
PROVISIONAL SPECIFICATION.
Improvements in Shades or Reflectors for Incandescent Electrio and
other Lamps.
We, ALFRED ALLEN BARRATT, Clerk in Holy Orders, and THE ARTISTIO
LETTER COMPANY, LIMITED, all of No. 14, Sherborne Lane, in the City of
London, do hereby declare the nature of this invention to be as follows :—
Shades or reflectors for incandescent electric lamps are commonly made of opal
glass and owing to the frangible nature of this material thoy frequently become
broken, thua considerably increasing the cost of maintenance of the lamp.
Now, the object of the present invention is to construct such shades or reflectors
of a material which will have the appearance of glass and may be either semi-
transparent or opaque in character but which at the same time will be of such a
nature that it will not be liable to fracture but will be practically indestructible.
In carrying the present invention into effect, the shade 18 forined of celluloid or
like material by piessing the same in a mould or between dies whilst in a soft or
plastic state and by the employment of moulds of suitable form. auy ornamental
pattern or shape may be applied thereto in the pressing operation and if desired
the shade may be further ornamented in the pressing operation or otherwise by the
aid of cutters.
Instead of producing the shades or reflectors in the manner heretofore described,
they are in some cases formed of strips or blanks of sheet celluloid or the like out
to the required form to produce the desired shade and jointed at the edges by
rivetting on otherwise.
The surface of the shado or reflector may be glazed or coated with any
suitable enamel or printed upon or letters and signs fixed to the surface and the
device may serve for the display of advertisements or the like if desired.
By the means herein before described, a shade or reflector is obtained which is
very light, not liable to fracture but is practically indestructible with ordinary
usage, is especially adopted for advertising purposes and the cost of which is if
anything less than that of an opal glass shade.
Although the invention is described in connection with incandescent electrio
lamps it will be understood that it is also applicable to shades or reflectors for
certain gas, oil or other lamps.
Dated this 14th day of May 1895.
VAUGHAN & SON,
Agents for the Applicants.
COMPLETE SPECIFICATION.
5 Improvements in Shades or Reflectors for Incandescent Electric and
other Lamps.
We, ALFRED ALLEN BARRATT, Clerk in Holy Orders, and THE ARTISTIC
LETTER COMPANY, LIMITED, all of No. 14, Sherborne Lane in the City of
London, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in aud by the
following statement :-
Shades or reflectors for incandescent electric lamps are commonly made of opal

page_text: glass and owing to the frangible nature of this material they frequently become
broken thus cousiderably increasing the cost of maintenance of the lamp.
Now the object of the present invention is to construct such shades or reflectors
of a material which will have the appearance of glass and may be either transparent
or more or less opaque in character but which at the same time will be of such a
nature that it will not be liable to fracture but will be practically indestructible.
In carrying the present invention into effect a suitable piece of sheet celluloid
or like material is taken, and by dies or other suitable means is cut in designs and
in such form that when the ends are joined together it forms the required shade.
Or the necessary form may be given to it by partly cutting and partly, or
entirely, pressing in suitable moulds or dies.
The surface of the shade or reflector may have placed on it by printing or other
suitable means designs for the purpose of further ornamentation
By the means herein before described a shade or reflector is obtained which 18
very light, not liable to fracture but is practically indestructible with ordinary
usage, is produced at small expense, and can be moulded or otherwise ornamented
in a manner not possible with an opal glass shade.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :
A shade or reflector for electric lamps formed of celluloid or like material
substantially as described
Fourteenth day of February 1896.
ALFRED ALLEN BARRATT.
For THE ARTISTIC LETTER COMPANY, LTD.,
H. ALLEN, Secretary.