IMPROVEMENTS IN ROLLERS APPLICABLE FOR BLINDS, MAPS, AND OTHER PURPOSES."
Year: 1857

page_text: LETTERS PATENT to William Wall White and William Bull, of No. 9,
St. John's Square, Clerkenwell, in the County of Middlesex, Merchants,
for the Invention of "IMPROVEMENTS IN ROLLERS APPLICABLE FOR BLINDS,
MAPS, AND OTHER PURPOSES."
PROVISIONAL SPECIFICATION left by the said William Wall White
and William Bull at the Office of the Commissioners of Patents, with
their Petition, on the 29th September 1857.
We, WILLIAM WALL WHITE and WILLIAM BULL, of No. 9, St. John's
Square, Clerkenwell, in the County of Middlesex, Merchants, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN ROLLERS
APPLICABLE FOR BLINDS, MAPS, AND OTHER PURPOSES," to be as follows:-
We claim as our Invention the use of an india-rubber spring of any con-
venient form or a spring of any substance fixed to the framework in which
the roller revolves, to which a cord is attached, the other end being passed
over or fastened to the wheel on the roller. We also claim the privilege of
varying this mode by having a pully fastened to the spring, the cord fastened
to the wheel on the roller passing through the pulley, and being fixed to the
framework of the window. We likewise claim a peculiar combination of cog
wheels as applied to rollers of the above description, and the ratchet wheel
and catch for retaining the cord in position; also a peculiar method of
detaching the cloth, &c. from the roller.

page_text: REFERENCES TO THE DRAWINGS.
Figure 1, A, the blind; B, a pulley wheel fastened to one end of the
roller, with smaller diameter than the roller; C, the ratchet wheel fastened at
the opposite end of the roller, shewing the catch that works in the ratchet
wheel, and which catch is attached to the framework; E, a cord fastened to
the pulley wheel, and passed down through the pulley attached to the spring
F. Figure 2, A shews the ratchet wheel (C, in Figure 1,) and B, the
catch. Figure 3, A shews the pulley wheel (B, in Figure 1,) and B, B,
the method of fastening it to the roller. Figure 4, A, a cog wheel with
drum at back for the cord to wind on; B, a cog wheel attached to the roller,
and works with the cog wheel A; C, C, the cord; D, the spring fastened to
the framework; E, the catch for the cord. Figure 5, side view of cog wheel
(A in Figure 4). Figure 6, A, portion of roller; B, metal eye screwed in the
roller; C, C, half split ring or hook.
-
The peculiar method of detaching the cloth, &c. from the roller is as
follows: The blind is attached to the roller by means of metal eyes or
staples driven into the roller at stated distances from each other, and hooks
or half split rings sewn to the cloth, &c. By inserting the hooks or half split
rings into the eyes of the roller the cloth is attached, and by drawing them
out the cloth, &c. is detached.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Wall White and William Bull in the Great Seal
Patent Office on the 29th March 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
WALL WHITE and WILLIAM BULL, of No. 9, Saint John's Square, Clerkenwell,
in the County of Middlesex, Merchants, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-ninth day of September, in the year of our
Lord One thousand eight hundred and fifty-eight, in the twenty-first year
of Her reign, did, for Herself, Her heirs and successors, give and grant unto
us, the said William Wall White and William Bull, Her special licence that
we, the said William Wall White and William Bull, our executors, admi-
nistrators, and assigns, or such others as we, the said William Wall White
and William Bull, our executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times thereafter

page_text: 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
ROLLERS APPLICABLE FOR BLINDS, MAPS, AND OTHER PURPOSES," upon the condition
(amongst others) that we, the said William Wall White and William Bull,
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 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 William Wall White and William
Bull, do hereby declare the nature of our said Invention, and in what
manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
We claim as our Invention the use of an india-rubber spring of any con-
venient form or a spring of any substance fixed to the framework on which
the roller revolves, to which a cord is attached, the other end being passed
over or fastened to the wheel on the roller, which has a rachet for a catch on
one side, and a drum (smaller in diameter than the roller). We also claim
the privilege of varying this mode by having a pulley fastened to the spring,
the cord fastened to the pulley wheel, passing through the pulley, and being
fixed to the bracket or framework of the window. We likewise claim the
use of these principles without the india-rubber spring, &c., the roller being
made to revolve, and the blind being fixed in any position by a spring on the
bracket.
REFERENCES TO THE DRAWINGS.
Figure 1, A, the blind; B, the pulley wheel fastened to one end of the
roller, with smaller diameter than roller, and rachet on side of it, also the catch
that works in the rachet, and catch is attached to a bracket in which the
roller revolves; C, a cord fastened to the pulley wheel, and passed down and
attached to the spring D. Figure 2, A shews the rachet on pulley wheel
and catch (the catch is attached to the bracket) B, in Figure 1). Figure 3,
A shews the pulley wheel with bracket (B, in Figure 1,) and B, B, the
method of fastening it to the roller. Figure 4, A, the blind; B, the pulley

page_text: Figure 7, A, the pulley attached to the spring B; C, the cord, one end of
which is fastened to the end of the wheel on the roller, the other end to the
bracket or framework of the window.
In witness whereof, we, the said William Wall White and William Bull,
have heretofore set our hands and seals, this Twenty-ninth day of
March, in the year of our Lord One thousand eight hundred and fifty-
eight
W. WALL WHITE. (L.S.)
WM BULL.
(L.S.)