IMPROVEMENTS IN MECHANISM FOR. WORKING ROLLER BLINDS, MAPS, AND ARTICLES OF A LIKE NATURB
Year: 1871

page_text: LETTERS PATENT to Edward Haworth Hatton and George Hatton,
Window Blind Manufacturers, of Liverpool, in the County of
Lancaster, for the Invention of "IMPROVEMENTS IN MECHANISM FOR.
WORKING ROLLER BLINDS, MAPS, AND ARTICLES OF A LIKE NATURB."
Sealed the 28th November 1871, and dated the 30th August 1871.
PROVISIONAL SPECIFICATION left by the said Edward Haworth
Hatton and George Hatton at the Office of the Commissioners of
Patents, with their Petition, on the 30th August 1871.
We, EDWARD HAWORTH HATTON, and GEORGE HATTON, Window
Blind Manufacturers, of Liverpool, in the County of Lancaster, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
MECHANISM FOR WORKING ROLLER BLINDS, MAPS, AND ARTICLES OF A LIKE
NATURE," to be as follows:-
Our Invention relates to novel combinations and actions of parts of
mechanism for raising and lowering blinds, maps, and articles of a like
nature, and more particularly for fastening them at any desired height,
and consists, as means for raising, lowering, and affixing at any required
3

page_text: height blinds, maps, and like flexible articles, in using a cord which is
wound on a pulley during the descent of the blind, map, or other article,
and in so arranging the parts that the sheave which is attached to tho
end of the blind roller works around a fixed pin containing a detent freo
to fall into notches or recesses formed in the sheave. The end of the
sheave has notches or recesses so formed that the blind can be raised
without moving the detent, but when it is desired to lower the blind, the
cord, which passes through a lifting piece or lever, is drawn inwards,
and the said lifting piece, it being hung on a centro, is made to raise the
detent and allow the blind to fall. On releasing the cord the detent
falls into a recess.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edward Haworth Hatton and George Hatton in
。 the Great Seal Patent Office on the 29th February 1872.
.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, EDWARD
HAWORTH HATTON and GEORGE HATTON, Window Blind Manufacturers,
of Liverpool, in the County of Lancaster, send greeting...
•
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirtieth day of August, in the year of
our Lord One thousand eight hundred and seventy-one, in the thirty-
fifth year of Her reign, did for Herself, Her heirs and successors, give
and grant unto us, the said Edward Haworth Hatton and George Hatton,
Her special licence, that we, the said Edward Haworth Hatton and
George Hatton, our executors, administrators, and assigns, or such
others as we, the said Edward Haworth Hatton and George Hatton, our
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 a
"IMPROVEMENTS IN MECHANISM FOR WORKING ROLLER BLINDS, MAPS, AND
ARTICLES OF A LIKE NATURE," upon the condition (amongst others) that wo,
the said Edward Haworth Hatton and George Hatton, our executors or
administrators, by an instrument in writing under our, or their, or one
of their hands and seals, should particularly describe and ascertain the

page_text: nature of the said Invention, and in what manner the same was to
bo 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 we, the said Edward Haworth Hatton and
George Hatton, do hereby declare the nature of our said Invention, and
in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
Our Invention relates to novel combinations and the actions of parts
of mechanism for raising and lowering roller blinds, maps, &c., and more
particularly for fastening them at any desired height, and consists, as
means for raising, lowering, and affixing at any required height blinds,
maps, and like flexible articles, in using a cord which is wound on a
pulley during the descent of the blind, map, or other article, and in so
arranging the parts that the sheave which is attached to the end of the
blind roller works around a fixed pin containing a detent free to fall into
notches or recesses formed in the sheave. The end of the sheayo has
notches or recesses so formed that the blind can be raised without lifting
the detent, but when it is desired to lower the blind, the cord, which
passes through a lifting piece or lever, is drawn inwards, and the said
lifting piece, it being hung on a centre, is made to raise the detent and
allow the blind to fall. On releasing the cord the detent falls into a
recess; and in order that our Invention may be better understood wo
will refer to the Drawings hereunto annexed.
F
Fig. 1. To a front elevation of a roller blind fitted with the improved
mechanism for actuating the same; B is the roller; A, the sheave; C
the pin in which is placed the detent D; E, the cord for raising the
blind; F, the lever for raising the detent D, through the end of which
lever the cord E passes; -G, the plain pin at the left hand end of roller;
and H the bracket for supporting the same. Fig. 2 is an end view of
the roller. Figs. 3 and 4 show separate from the roller an end and side
view of the right hand bracket, to which is attached pin O, detent D,
and lever F. The dotted position of the lever p in Figure 3, shows the
position that lever has to occupy when it has raised the detent D to
permit the blind to be run down. Figs. 5 and 6 are respectively an end
view and section of sheave A. Fig. 7 shows the detent D, and Figure 8'a
section of the same at a-v. Figs. 9 and 10 are an end and side view of

page_text: -
left hand bracket II; and Figs. 11 and 12 are an end view and side
view of the left hand pin C.
5
1
Our Invention consists of a sheave A, which is screwed to the right
hand end of roller B, and then fits on to a pin C, in which works the
detent D, falling by its own gravity into notches cut in the internal
surface of the sheave A, thus locking and preventing the roller B -
turning one way. To work this a cord E is attached to the barrel of the
sheave A while the blind is rolled up. The roller is then placed on the
pin C, and the cord E passed through a small lever F, fixed under the
pin C, and then (J, E, the cord) hangs free, as shown in Fig. 1. By
drawing the cord E in the direction of the arrow the lever F is caused
to raise the detent D, and allow the blind to run down as far as required.
In running down the cord E coils upon the barrel of the sheave A, so
that to raise the blind again it is only necessary to pull the cord E and
draw it off tho barrel of the sheave A again. To the left hand end of 1
the roller B a plain pin G is fitted; which works in a socket cut in the
bracket H for its reception..
U
Having now particularly described and ascertained the nature of our
said Invention, and how the same is to be performed, we claim, the
mechanism herein-before described and shown by the Drawings for 2
working roller blinds, maps, and articles of a like nature; and we par-
ticularly claim as of our Invention the combination of a sheave or pulley
working upon a stationary pin, said pin containing a detent or catch
falling by its own gravity into notches or recesses formed for its recep-
tion in the internal surface of the barrel of the said sheave or pulley 2
when used for working roller blinds, maps, and articles of a like
nature.
In witness whereof, I, the said Edward Haworth Hatton, have, for
myself and the said George Hatton, hercunto set my hand and
EDWARD HAWORTH HATTON.
(L.B.)