IMPROVEMENTS IN WINDOW SUN BLINDS
Year: 1868

page_text: LETTERS PATENT to William Edward Newton, of the Office for
Patents, 66, Chancery Lane, in the County of Middlesex, Civil
Engineer, for the Invention of "IMPROVEMENTS IN WINDOW SUN
BLINDS." A communication from abroad by Jacob B. Moore, of
the City and State of New York, United States of America.
Sealed the 19th June 1868, and dated the 30th January 1868.
PROVISIONAL SPECIFICATION left by the said William Edward
Newton at the Office of the Commissioners of Patents, with his
Petition, on the 30th January 1808.
I, WILLIAM EDWARD NEWTON, of the Office for Patents, 66, Chancery
Lane, in the County of Middlesex, Civil Engincer, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN WINDOW SUN
BLINDS," to be as follows:-
The subject of the present Invention is a novel arrangement of sun
blind constructed in such a way that it may be made to cover any part
of the window and to any extent.
The blind, which may be made of canvas or any similar material, is
attached to a roller, round which it may be wound. To the lower

page_text: extremity of the blind is attached a weighted rod of the same weight as
the upper roller, so that it acts as a counterbalance. Projecting from the
ends of the roller are short shafts of a smaller diameter than the roller,
which is supported from the top by cords attached to the small end
shafts of the roller. These cords pass upwards from the roller through
eyelet holes or guide pulleys in the top of the window frame, through
two more eyelet holes or pullies in the centre of the top of the frame,
and down the centre of the window, where they are attached to a
weighted tassel, the weight of which must be equal to the united
weights of the roller blind and counterbalance rod. It will thus be
seen that the roller on which the blind is wound is capable of being
raised or lowered to any part of the window, and when the lower part
of the window is covered light may be admitted from the top.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Edward Newton in the Great Seal Patent
Office on the 30th July 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
EDWARD NEWTON, of the Office for Patents, 66, Chancery Lane, in the
County of Middlesex, Civil Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirtieth day of January, in the year of
our Lord One thousand eight hundred and sixty-eight, in the thirty-first
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said William Edward Newton, Her special licence
that I, the said William Edward Newton, my executors, administrators,
and assigns, or such others as I, the said William Edward Newton, 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 "IMPROVEMENTS IN
WINDOW SUB BLINDS," being a communication to me from abroad, upon
the condition (amongst others) that I, the said William Edward Newton,
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

page_text: 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 I, the said William Edward Newton, do
hereby declare the nature of the said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement, reference being had to the Drawing
hereunto annexed, and to the letters and figures marked thereon (that is
to say):-
--
This Invention has for its object to furnish a simple, cheap, and
effective window shade fixture which will not be liable to derangement,
and which will obviate the annoyance now so generally experienced
from the ordinary shade fixtures getting out of order, and it consists
in the construction, combination, and arrangement of the various parts
as herein-after more fully described.
The Figure in the accompanying Drawing represents a window with
the improved shade fixture adapted thereto. A is the window casing;
B, the roller to which the shade C is attached, and around which it
is wound. From the ends of this roller B project rods D of smaller
diameter than the roller B, to which rods the cords E are attached,
whereby the shade is supported, the cords being wound several times
around the rods in the direction shown in the Drawing. By this
construction and arrangement (the roller B suspended by the cords E)
the tendency is for the roller B to roll down in the direction to unwind
the cords E from the rods D, and thus roll the curtain C up around the
roller; but the shade being left free the tendency of the shade C is
to unwind or roll the roller B in the opposite direction. To establish
an equilibrium between these two forces a rod F or equivalent weight is
placed in or attached to the lower part of the shade, which should
be of such a weight as to exactly balance the forces, so that the shade
may be placed at any part of the window without changing its position.
If now the equilibrium be destroyed by raising the bar or rod F with
the hand, the roller B will roll down upon the cords E and wind up the
shade C; and if the equilibrium be destroyed by drawing the bar or
rod F downward the shade will be drawn down or unwound from the
roller, so as to cover or shade a larger part of the window. When the
window casing is sufficiently wide to allow the shade C to be unwound
without lowering the roller so far as to uncover the upper part of the

page_text: window, the upper ends of the cords E may be attached to hooks or
other supports secured to the upper part of the casing; but in ordinary
cases (and this construction I prefer) the cords E may be passed
through eyes G or around guide pullies to the central part of the
window, at which point they descend, and to their lower or free ends a
should be attached a weighted tassel II of such a weight as to exactly
balance the roller B and shade C. This will allow the shade (when
fully rolled up or when unrolled to any desired extent) to be raised or
lowered to shade any desired part of the window or to leave any
desired part of the window uncovered. If desired the cords E may be 1
guided to the side of the window and pass down along the side casing, so
as to leave the front of the window more unobstructed, and so that the
tassel H or other balancing weight may hang at the side instead of in
front of the window.
Having now described the Invention which has been communicated 1
to me as aforesaid, and having explained the manner of carrying the
same into effect, I claim as the Invention secured to me by Letters
Patent as aforesaid,―
First. The combination of the cords E, rods D, roller B, shade C, and
balancing bar or rod F, or equivalent weight with each other, as hercin
shewn and described, and for the purpose set forth.
Second. Balancing the roller B, shade C, and rod or bar F by means
of a weighted tassel H or other equivalent weight suspended from the
ends of the extended cords E, as herein shewn and described, and for
the purpose set forth.
Third. Making the rods D, to which the suspending cords E are
attached and about which they are wound of a smaller diameter than
the roller B, about which the shade C is wound, as hercin shewn and
described, and for the purpose set forth.
In witness whereof, I, the said William Edward Newton, have
hereunto set my hand and scal, the Twenty-fifth day of July,
in the year of our Lord One thousand eight hundred and
insight
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