IMPROVEMENTS ON THE APPARATUS USED FOR ROLLERS FOR WINDOW BLINDS, MAPS, AND OTHER SIMILAR OBJECTS
Year: 1809

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
BARRON, of Wells Street, in the County of Middlesex, Brassfounder, do send
greeting.
WHEREAS His most Excellent Majesty George the Third, by His Letters
Patent under the Great Seal of the United Kingdom of Great Britain and
Ireland, bearing date at Westminster, the Fifth day of December, now last
past, did give and grant unto me, the said James Barron, my executors,
administrators, and assigns, His especial licence, full power, solo privilege
and authority, that I, the said James Barron, my executors, administrators,
and assigns, should and lawfully might make, use, exercise, and vend,
within England, Wales, and the Town of Berwick-upon-Tweed, my Invention
of "IMPROVEMENTS ON THE APPARATUS USED FOR ROLLERS FOR WINDOW BLINDS,
MAPS, AND OTHER SIMILAR OBJECTS;" in which said Letters Patent there is
contained a proviso, obliging me, the said James Barron, under my hand
and seal, to cause a particular description of the nature of my said Invention,
and in what manner the same is to be performed, to be inrolled in His
Majesty's High Court of Chancery within two calendar months next and
immediately after the date of the said in part recited Letters Patent, as in
and by the same (relation being thereunto had) may more fully and at large
appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
James Barrou, do hereby declare that my said Invention is fully described and

page_text: ascertained by the Drawings in the margin of these Presents, and the
following description thereof, that is to say:-
Figure 1 is a front view of a window blind or roller map when fixed in its
place with my improved apparatus. The brackets at A and B are fastened to
the lath, and suspend the roller by the pivots C, D, Figures 2 and 3, or conical
sockets E and F, Figure 4. I prefer conical sockets, as producing less friction,
but cylindrical sockets and cylindrical pivots may be used, if desired. The
bracket B is a spring fastened on the top of the lath, the use of which is to
keep the blind to any part of the window where drawn to, it is regulated or
made to act with more or less force by the wedge (G), Figures 5 and 6, which
causes it to raise the roller and to press the pulley more or less against an
iron or metal plate fixed to the under side of the lath at H, Figure 6. The
wedge G moves in a slanting bed sunk in the top of the lath, under the
spring, and crosswise to it; the wedge is moved forwards by the screw K,
let through the edge of the lath, which causes the wedge to rise above the
surface of the lath and bear up the spring with it. Figure 7 is a longitudinal
section of wedge and screw. The blind being drawn downwards, the pressure of
the pulley against E, produced by the spring bracket, prevents the weight of the
blind from running it down; and in like manner, when the blind is to be rolled
up, by pulling the line P, the spring being then drawn down, the pressure
of the pulley will be removed, and the blind rolls up freely to any height
desired, for, by ceasing to pull the line (P), the spring immediately presses
the pulley against the curved plate H, which stops all further motion. The
line P winds round a small spindle between two circular plates, in the usual
manner. The bracket A may be fixed in the under side of the lath, and
contrived to slide outwards, in order to withdraw the pivot and allow the roller
to be taken down at pleasure, for cleaning or preserving the blinds. The
bracket slides between a metal plate and the lath. It is retained to the
plate at the outer end by a staple at (a), Figure 8, and the end of the bracket
has a button which slides through a slit in the plate, see (a), Figure 9, and
keeps that end of the bracket steady. The slit has a notch in the side at the
inner extremity, into which the button is forced by the spring S, which moves
the end of the bracket sideways when it is drawn in, and thus keeps the pivot
of the roller tight. But when you want to take the blind down, push the
button out of the notch, and (being fastened to the bracket) as you draw the
button along the slit the bracket will slide out and release the pivot. Figure 8
is a view of the upper side of the plate and bracket A; Figure 9 is a view of
the under side, both shewing the bracket half drawn out; and Figure 10 is a
section of the same, as connected with the lath and roller. For adjusting

page_text: the pivots with greater nicety, the pivot D or C may be made to screw thro'
the bracket, by which means the inaccuracy of the workman who mounts the
roller can be corrected.
In witness whereof, I have hereunto set my hand and seal, this Fifth
day of February, in the fiftieth year of the reign of our Sovereign
Lord George the Third, by the Grace of God of the United Kingdom
of Great Britain and Ireland King, Defender of the Faith, and in
the year of our Lord One thousand eight hundred and ten.
JAMES (L.S.) BARRON.
AND BE IT REMEMBERED, that on the Fifth day of February, in the
iftieth year of the reign of His Majesty King George the Third, the said
James Barron came before our said Lord the King in His Chancery, and
cknowledged the instrument aforesaid, and all and every thing therein
contained and specified, in form above written. And also the instrument
foresaid was stamped according to the tenor of the Statute made in the
orty-eighth year of His said Majesty's reign.
Inrolled the Fifth day of February, One thousand eight hundred and