A NEW OR IMPROVED MODE OF REFLECTING VARIOUS COLOURED LIGHTS SHA UPON STEREOSCOPIC AND OTHER OBJECTS FOR PRODUCING DIF- PERENT EFFECTS THEREON
Year: 1866

page_text: LETTERS PATENT to William Gould, Postmaster of Barnsbury Post Office,
Liverpool Road, Islington, in the County of Middlesex, for the Invention
of "A NEW OR IMPROVED MODE OF REFLECTING VARIOUS COLOURED LIGHTS
Sealed the 26th February 1867, and dated the 28th August 1866.
PROVISIONAL SPECIFICATION left by the said William Gould at the
Office of the Commissioners of Patents, with his Petition, on the 28th
August 1866.
I, WILLIAM GOULD, Postmaster of Barnsbury Post Office, Liverpool Road,
Islington, in the County of Middlesex, do hereby declare the nature of the
said Invention for "A NEW OR IMPROVED MODE OF REFLECTING VARIOUS COLOURED
LIGHTS AND SHADES UPON STEREOSCOPIC AND OTHER OBJECTS FOR PRODUCING DIF-
PERENT EFFECTS THEREON," to be as follows:-
This Invention has for its object improvements in stereoscopes and other
similar instruments, and consists in fixing glass slides or shades of any required
colour or combination of colours, either at the front or back of the instru-
ment, so that when the stereoscopic slides are placed therein different coloured
lights or tints are thrown on them, producing a brilliant and pleasing effect.
These coloured glass slides or shades are held in position by means of spring
catches or other suitable mechanism attached to a revolving horizontal or

page_text: vertical bar, or pin or bars or pins, generally placed at the back of the instru-
ment, either at the top and bottom, or at the two sides, or at the top or
bottom alone as desired. The pin or bar or pins or bars is or are held by
brackets fixed to the instrument, and by means of thumbscrews or other
equivalent mechanism elevated or depressed, causing the said coloured slides
to rise and fall as desired. A glass shade of any required colour may also be
placed over the top light or open or reflecting portion of the stereoscope
instead of at the back, or may be used together with the back slides or shades.
Coloured gauze or fabrics may also be used for obtaining the required tints in
lieu of the glass as before described.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Gould in the Great Seal Patent Office on the
28th February 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
GOULD, Postmaster of Barnsbury Post Office, Liverpool Road, Islington, in
the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent; bearing date the Twenty-eighth day of August, in the year of our Lord
One thousand eight hundred and sixty-six, in the thirtieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said William Gould, Her special licence that I, the said William Gould,
my executors, administrators, and assigns, or such others as I, the said
William Gould, my 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,
úse, 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 MODE OF REFLECTING VARIOUS COLORED LIGHTS AND SHADES UPON
STEREOSCOPIC AND OTHER OBJECTS FOR PRODUCING DIFFERENT EFFECTS THEREON,"
upon the condition (amongst others) that I, the said William Gould, 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 Seal Patent Office
within six calendar months next and immediately after the date of the said
Letters Patent,

page_text: NOW KNOW YE, that I, the said William Gould, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
This Invention has for its object improvements in stereoscopes and other
similar instruments, and consists in fixing (either at the front or back of the
instrument) glass slides or shades of any required color or combination of
colors, so that when the stereoscopic slide is placed in the instrument different
colored lights are thrown thereon, producing a brilliant and pleasing effect.
These colored glass slides or shades are held by spring catches (the upper
one being by preference double or two-way, and the under one single) or
other suitable mechanism attached to a revolving horizontal or vertical bar
or pin or bars or pins, which is or are held in position by brackets fixed on
the instrument, and by means of milled thumbscrews is or are elevated or
depressed, causing the said colored slides or shades to rise or fall (turning on
their axes) as desired. A glass slide of any required color or combination of
colors may also be placed over the top light or open or reflecting portion of
the stereoscope instead of at the back. For reflecting on glass slides or objects
these colored shades may be placed at the back of the instrument both at the
top and bottom, or at the two sides, or at the top or bottom alone, and also
over the reflecting or open portion of the instrument, which latter alone is the
case with paper or card objects, or the upper revolving pin can be made to
turn completely over the said reflecting space to answer both for glass and
paper objects. Set screws are also used for regulating the tightening or
loosening of the brackets holding the said revolving bars or pins. Without
departing from the true principles of the Invention I can also apply it to the
casting of shades on photographic and other similar pictures placed in con-
servatories, windows, and other like places, as is meant by the words, "and
other objects" in the title.

page_text: to revolve about the axis f, f, thus elevating or depressing them as required,
the brackets e, e, being made to hold the said axes more or less tightly by means
of the adjusting screws 9, 9.
Having now described the nature and object of my said Invention I hereby
further declare that what I claim is, the application generally of shades of
colored glass, gauze, or other such like or suitable material to stereoscopes
and other places, as mentioned in the description, for casting different colored
tints on the objects-or-slides used-therewith, and the modes of fixing the same,
as herein described, though I do not restrict myself to these precise modes
of application, as the same may be variously modified in practice.
In witness whereof, I, the said William Gould, have hereunto set my
hand and seal, this Twenty-second day of February, in the year of
our Lord One thousand eight hundred and sixty-seven.
WILLIAM GOULD. (L.B.)