IMPROVEMENTS IN APPARATUS FOR RAISING AND LOWERING WINDOW BLINDS, WINDOWS, MAPS, AND OTHER ARTICLES
Year: 1866

page_text: LETTERS PATENT to George Allix, of Saint Helier's, Jersey, Shipwright,
for the Invention of "IMPROVEMENTS IN APPARATUS FOR RAISING AND
LOWERING WINDOW BLINDS, WINDOWS, MAPS, AND OTHER ARTICLES, AND
Sealed the 7th June 1867, and dated the 21st December 1866.
PROVISIONAL SPECIFICATION left by the said George Allix at the
Office of the Commissioners of Patents, with his Petition, on the
21st December 1866.
1, GEORGE ALLIX, of Saint Helier's, Jersey, Shipwright, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN APPARATUS FOR
RAISING AND LOWERING WINDOW BLINDS, WINDOWS, MAPS, AND OTHER ARTICLES,
AND RETAINING THEM IN ANY REQUIRED POSITION," to be as follows:-
My Invention relates to the use of chain in raising and lowering window
blinds mounted on rollers, and consists mainly in the construction and
employment as hereafter described of a slit or cut into which the chain
enters when left to itself, so that the chain is held in the slit and the blind
roller prevented rotating; also in the combination with the slit or cut of
other parts as hereafter described.
In carrying out this Invention I secure to the lower part of the side of the
window frame a bracket or cleat, the upper portion of which carries a pulley,
while in the lower portion a slit or cut is made to catch or nip the chain. The
upper end of the chain is secured to a pin on the end of the blind roller, and is

page_text: led down through an eye and through the pulley of the bracket or clcat; the
circumference of the pulley is, say, half-an-inch nearer the window frame than
the slit. To raise the blind take hold of a ring or handle on the lower end of
the chain, keep it out from the frame, and haul on it, keeping the chain
always taut; and when desired to stop the blind let go the chain suddenly or
close it towards the frame, and one of the links will be caught in the slit.
To lower the blind pull out the handle as before, let the chain run, but
keeping it always taut; and when required to stop the blind let the chain
catch in the slit as before. Sometimes I fit to the bracket a lever, by lifting
which the chain is moved out of the slit, and the blind runs down of its
own weight until the lever is released.
Another arrangement consists of a plate secured to the window frame having
a double lug at the upper part and a double lug at the lower part; each lug
has a pulley fitted in it, but the lower lug is, say, halfan inch longer than
the upper, and has a slit or cut to catch the chain as before explained.
Another arrangement consists of a plate secured to the window frame and
having two eyes, one above the other, at its upper part. The upper eye is
plain, and takes the place of the pulley before described, and it is as close as
possible to the frame; the lower eye is, say, half an inch from the frame, and
is formed with a slit or cut to catch the chain.
Another arrangement consists of a screw eye bolt screwed into the window
frame and having a shoulder as short as possible. The eye is formed with a
cut or slit, which is in this case at the part of the eye farthest from the frame,
and therefore the chain must be held towards the frame instead of from it
in raising or lowering the window blind; or if the eye bolt be of sufficient
length the slit or cut may be at the part of the eye nearest the frame. The
pin on the end of the blind roller may be made to turn in a bracket carried
out from a plate scrowed to the window frame or in an ordiuary side bracket,
and the bracket in either case has an eye carried out therefrom to lead the
chain from the roller pin, as before explained.
The arrangements before described are equally applicable to maps and other
articles mounted upon rollers. They can also be applied to carriage windows
and other frames, and outside blinds, by securing the upper end of the chain
to the top of the window or other part to be raised or lowered, carrying
over a pulley above and over a second pulley at the side about parallel with
the first pulley, and finally carrying it down to the apparatus before explained.
it

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Allix in the Great Seal Patent. Office ou the
21st June 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE ALLIX,
of Saint Helier's, Jersey, Shipwright, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-first day of December, 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 George Allix, Her special licence that I, the said George Allix
my executors, administrators, and assigns, or such others as the said
George Allix, 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,
use, exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "IMPROVE-
MENTS IN APPARATUS FOR RAISING AND LOWERING WINDOW BLINDS, WINDOWS,
MAPS, AND OTHER ARTICLES, AND RETAINING THEM IN ANY REQUIRED POSITION,"
upon the condition (amongst others) that I, the said George Allix, 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 Inventiou, 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 I, the said George Altix, do hereby declare the
nature of my said Invention, and in what manner the same is to be perforined,
to be particularly described and ascertained in and by the following statement
thereof, reference being had to the Drawings hereunto annexed, that istosay:―
My Invention relates to the use of chain in raising and lowering window
blinds mounted on rollers, and consists mainly in the construction and
employment as hereafter described in combination with a chain of a slit or
cut into which the chain enters when left to itself, so that the chain is held
in the slit and the blind roller prevented rotating; also in the combination
with the slit or cut of other parts as hereafter described.
In carrying out this Invention I secure to the lower part of the side of the
window frame a bracket or cleat, the upper portion of which carries a pulley
while in the lower portion a slit or cut is made to catch or nip the chain.

page_text: a is
Figures 1 and 2 represent such a bracket in fiont and side views.
the bracket; b, the pulley; and c the slit or cut. Figure 1 shows a window
blind with the bracket applied to the window frame. The upper end of the
chain & is secured to a pine on the end of the blind roller f, and is led down
through an eye g and through the pulley of the bracket or cleat, the
circumference of the pulley is, say, half an inch nearer the window frame
than the slit c. To raise the blind take hold of a ring or handle on the
lower end of the chain, keep it out from the window frame and haul on it,
keeping the chain always tant, and when desired to stop the blind let go the
chain suddenly or close it towards the frame; and one of the links will be
caught in the slit c. To lower the blind pull out the handle h, as before, let
the chain run but keeping it always taut, and when required to stop the
blind let the chain catch in the slit c as before. Sometimes I fit to the
bracket a a lever i pivoted to the bracket behind the pulley 6, as seen in
Figure 3, by lifting which on its pivot into the position shown in dotted lines
the chain d is moved out of the slit c, and the blind runs down of its own
weight until the lever is released.
Another arrangement consists of a plate a, as seen in Figure 4, secured to
the window frame, having a double lug k at the upper part and a double
lug at the lower part, each lug has a pulley e fitted in it, but the lower
lug is, say, half an inch longer than the upper, and has a slit or cut c to
catch the chain as before explained.
Another arrangement, seen in Figure 5, consists of a plate a secured to the
window frame and having two eyes m, n, unc above the other at its upper
part. The upper eye m is plain and takes the place of the pulley before
de-cribed, and it is as close as possible to the frame, the lower cyo n is,say,half
an inch from the frame, and is formed with a slit or cute to catch the chain.
Another arrangement consists of a screw eye bolt, shown at a in plan view
in Figure 6, screwed into the window frame, and having a shoulder o as short
as possible. The eye is formed with a cut or slit o which is in this case at the
part of the eye farthost from the frame, and therefore the chain d mustbeheld
towards the frame instead of from it in raising or lowering the window blind;
or if the eye holt be of sufficient length, as shown in Figure 7, the slit or cut c
may be at the part of the eye nearest the frame. The pin e on the end of
the blind roller f may be made to turn in a bracket p, as seen in Figure 1,
carried out from a plate 2 screwed to the window frame or in an ordinary side
bracket, and the bracket in either case has an eye, as atg, Figure 1, carried
out therefrom to lead the chain from the roller pin e as before explained;
sometimes I fit a whelped boss on the pin e for the chain & to pass round.

page_text: The arrangements before described are equally applicable to maps and
other articles mounted upon rollers. In applying them to Venetian blinds I
employ above the blind a roller round the pin, on the end of which the chain
passes, as in Figure 1, the ordinary cords which pass through apertures in the
laths are connected to this roller so that when the chain is pulled, and the
roller thereby caused to revolve, the cords wind round the roller, thus
raising the blind. When the chain is allowed to run the weight of the blind
causes the cords to unwind from the roller while the blind is lowered.
The arrangements can also be applied to carriage windows and other
frames and outside blinds by securing the upper end of the chain to the top
of the window or other part to be raised or lowered, carrying it over a pulley
above and over a second pulley at the side about parallel with the first pulley,
and finally carrying it down to the apparatus before explained. This
arrangement is represented in Figure 8, where the chain d is shown attached
at one ond to the top of a carriage window, then carried over two pulleys r, s,
and finally carried down to one of the catch or holding apparatus.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I claim as my "Improve-
ments in Apparatus for Raising and Lowering Window Blinds, Windows,
Maps, and other Articles, and Retaining them in any required Position,"
First, the combination with a chain of a slit or cut to form a catch for
the chain, substantially as and for the purpose herein-before described and
represented in the accompanying Drawings.
Secondly, the combination with a slit or cut which forms a catch for a
chain of other parts, substantially as herein-before described and represented
in the several Figures of the accompanying Drawings.
Thirdly, placing a pulley at the top of the bracket or cleat for leading
the chain in a direct line down through the slit of the cleat.
In witness whereof, I, the said George Allix, have hereunto set my
hand and seal, this Fifteenth day of June, One thousand eight
hundred and sixty-seven.
GEORGE ALLIX. (L.S.)