IMPROVEMENTS IN SPRING BLINDS
Year: 1857

page_text: LETTERS PATENT to Godwin Ratler Simpson and David Caldow Simpson,
of No. 78, High Street, Whitechapel, and No. 5, George Terrace,
Commercial Road, Blind Makers, for the Invention of "IMPROVEMENTS IN
SPRING BLINDS."
Sealed the 30th April 1858, and dated the 5th November 1857.
PROVISIONAL SPECIFICATION left by the said Godwin Ratler Simpson
and David Caldow Simpson at the Office of the Commissioners of
Patents, with their Petition, on the 5th November 1857.
We, GODWIN RATLER SIMPSON and DAVID CALDOW SIMPSON, of No. 78,
High Street, Whitechapel, and No. 5, George Terrace, Commercial Road,
Blind Makers, do hereby declare the nature of the said Invention for.
"IMPROVEMENTS IN SPRING BLINDS," to be as follows:-
My Invention consists of a new method for drawing up and putting in
action every description of roller, Venetian and outside shop blinds,, by means:
of an elastic india-rubber band or cord, instead of the metallic spring barrel at
present in use.
1st, as to the roller blind, I use an india-rubber band or cord, which is
made fast at one end on the top of the framework that supports the roller ;
this india-rubber band or cord is carried about one-half the length of the
framework, and to which is fastened a piece of catgut or whipcord, or any.
other line according to size of blind sufficient to reach the other end of the.

page_text: framework; the end of this piece of catgut or whipcord is then brought
through the framework, working over a wheel, and is attached to a small brass
or wooden barrel that is on the roller; by this means the roller is kept in a
springing state, and when the blind is drawn down, it tightens or extends the
india-rubber spring to its full extent, and when the blind is left loose, by lifting
a cog the india-rubber spring retracts and raises the blind up.
2nd, as to the Venetian blinds, I use a roller instead of small pulley wheels
at present in use! The roller is fixed to the top lath or frame, then one, two,
or three lines passes down the Venetian blind; and are made fast to the roller;
by drawing or pulling one line the blind is drawn up, and the lines passes
round the roller, which is stopped by a cog, thereby doing away with having
more cords than one in the hand, and that being stopped by a cog requires no
other fastening
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Godwin Ratler Simpson and David Caldow Simpson in the
Great Seal Patent Office on the 5th May 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, GODWIN
RATLER SIMPSON and DAVID CALDOW SIMPSON, of No. 78, High Street,
Whitechapel, and No. 5, George Terrace, Commercial Road, Blind Makers,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifth day of November, in the year of our Lord
One thousand eight hundred and fifty-seven, in the twenty-first year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
sáid Godwin Ratler Simpson and David Caldow.Simpson, Her special licence
that we, the said Godwin Ratler. Simpson and David Caldow Simpson, our.
executors, administrators, and assigns, or such others as we, the said Godwin
Ratler Simpson and David Caldow Simpson; 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 Inven-
tion for "IMPROVEMENTS IN. SPRING BLINDS," upon the condition (amongst
others) that we, the said Godwin Ratler Simpson and David: Caldów-Simpson,
our executors or administrators, by an instrument in writing under our, or
one of our, or their, or one of their hands and seals, should particularly
"

page_text: 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.
NOW KNOW YE, that we, the said Godwin Ratler Simpson and David
Caldow Simpson, 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 spring blinds. 1st, as to the spring roller blind,
we use an india-rubber band or cord, which is made fast on one end of the
top lath, or on top of the framework that supports the roller; this india-
rubber band or cord is carried about one-half the length of the framework,
and to which is fastened a piece of catgut or cord sufficient to reach the other
end of the framework; the end of this piece of catgut or cord is then brought
over a wheel through the framework, and is attached to a barrel that is
fastened on one end of the roller; by pulling down the blind the barrel is
made to revolve, the india-rubber to expand, the blind becomes in a springing
state; the further the blind is pulled down, the more the india-rubber
expands, and is ever ready on being let loose to fly back to its original state,
and thereby drawing up the blind.
2nd, as to the Venetian blind, we use a roller instead of small pulley
wheels at present in use; the roller is fixed to the top lath or frame; there
are two or three lines pass down the Venetian blind, and are made fast to the
roller; by drawing or pulling one line, the blind is drawn up, and the lines
pass round the roller, which is stopped by a cog, thereby doing away with
having more cords than one in the hand, and that being-stopped by a cog
requires no other fastening.
.
"
In witness whereof, I, the said Godwin Ratler Simpson, on behalf of
myself and of the said David Caldow Simpson, have hereunto set my
hand and seal, this Fifth day of May, in the year of our Lord One
thousand eight hundred and fifty-eight.
GODWIN RATLER SIMPSON. (L.B.)