IMPROVEMENTS IN REVOLVING OR COILING SHUTTERS
Year: 1868

page_text: LETTERS PATENT to Joseph Revill, of No. 11, Walmer Crescent,
Notting Hill, Middlesex, Joiner, for the Invention of "IMPROVEMENTS
IN REVOLVING OR COILING SHUTTERS."
Sealed the 20th November 1868, and dated the 21st May 1868.
PROVISIONAL SPECIFICATION left by the said Joseph Revill at the
Office of the Commissioners of Patents, with his Petition, on the
21st May 1868.
I, JOSEPH REVILL, of No. 11, Walmer Crescent, Notting Hill,
Middlesex, Joiner, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN REVOLVING OR COILING SHUTTERS," to be as
follows:-
Hitherto revolving shutters have been made with laths overlapping
each other.
Now my Invention consists in making each lath with a rule joint,
whereby the whole shutter will appear flush on its surface. The laths.
are connected by chains, gutta percha, or leather strings or cords passed
thro' holes bored horizontally in each lath about two feet distant. The

page_text: shutters are made either to come from below or above the window or
they can be wound off a roller fixed to or hung on two iron plates.
The shutter rises by the aid of weights fixed to the end of chains or
cords, above mentioned. Attached to the roller is a ratchett wheel into
which works a stop; this stop is for the purpose of stopping the
rotation of the roller when the shutters are in the position required. A
handle attached to the shaft of the ratchett wheel turns the shaft or
roller when required. The roller of those shutters placed above is
suspended to the breastsummer by iron brackets made with a loop, in
the centre of which is a friction wheel. At each end of the roller is
attached a pulley with a deep square groove; fixed to the pullies are
chains with weights for the purpose of lowering & raising the shutter.
When the shutters come from the side of the window they are wound
on a roller, the upper end of which is attached to breastsummer by an
angular bracket; at the lower end of roller a handle is fixed by which
the shutter is wound round the roller. For the purpose of closing the
shutter a coil of chain is attached to the upper part winding on a
roller at the other side of the window, the same being worked with a
handle. The shutters are guided by pullies attached at intervals, and
running on an iron rod hanging by hooks from the breastsummer.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Joseph Revill in the Great Seal Patent Office
on the 21st November 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
REVILL, of No. 11, Walmer Crescent, Notting Hill, Middlesex, Joiner,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-first day of May, in the year of
our Lord One thousand eight hundred and sixty-eight, in the thirty-
first year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Joseph Revill, Her special licence
that I, the said Joseph Revill, my executors, administrators, and
assigns, or such others as I, the said Joseph Revill, my 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

page_text: 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
REVOLVING OR COILING SHUTTERS," upon the condition (amongst others):
that I, the said Joseph Revill, 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
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 I, the said Joseph Revill, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say :-
Hitherto revolving shutters have been made with laths overlapping
each other.
Now my Invention consists in making each lath with a rule joint,"
whereby the old shutter will appear flush on its surface. The laths
are connected by chains, gutta percha, leather, string or cords passed
through holes bored vertically or horizontally, as the case may be,
according to the position of the shutter in each lath about two feet
distant. The shutters are made either to come from below the window
or they can be wound off a roller fixed to or hung on two iron plates.'
The shutter rises by the aid of weights fixed to the ends of chains or
cords above mentioned attached to the roller, and a ratchet wheel into
which works a stop. This stop is for the purpose of stopping the
rotation of the roller when the shutters are in the position required. A
handle attached to the shaft of the ratchet wheel turns the shaft or
roller when required. The roller of those shutters placed above is
suspended to the bressummer by iron brackets made with a loop, in the
centre of which is a friction wheel. At each end of the roller is
attached a pulley with a deep square groove; fixed to the pulleys are
chains with weights for the purpose of lowering and raising the shutter.
When the shutter comes from the side of the window they are wound
on a roller, the upper end of which is attached to the bressummer by.
an angular bracket. At the lower end of the roller a handle is fixed.
by which the shutter is wound round the roller. For the purpose of

page_text: closing the shutter a coil of chain is attached to the upper part winding
on a roller at the other side of the window the same being worked with
a handle. The shutters are guided by pullies attached at intervals and
running on an iron rod hanging by hooks from the bressummer.
closing the shutter a coil of chain is attached to the upper part winding
on a roller at the other side of the window the same being worked with
a handle. The shutters are guided by pullies attached at intervals and
running on an iron rod hanging by hooks from the bressummer.
And in order that my Invention may be most fully understood and
readily carried into practice, I will proceed to describe the Drawings
hereunto annexed.
Figure 1 shows a vertical section, Figure 2 a back view of a revolving
or coiling shutter applied and arranged in accordance with my Inven-
tion.
a is the coiling shutter indicated by dotted lines, and 6 is the roller
upon which the shutter is wound. The ends of the laths forming the
shutter at either side travel up and down in grooves or guides, as is
well understood. c, c¹, are brackets provided with friction rollers d, d³,
upon which the axis of the roller 6 according to my Invention is
supported, and turns at either end, thus reducing the friction and
the consequent effort required for coiling or uncoiling the shutters. At
the outer ends of the axis of the roller 6 according to my Invention
I fix pullies e, e¹, formed with flanges, as shown in the Drawing, and
in the groove between such flanges the ends of bands, belts, ropes, or
chains f, f, are attached, the other ends of such bands or chains having
weights suspended thereto so arranged as to assist in raising or lowering
the shutter, the bands or chains being coiled up around the pullies e, e¹,
and so raising the weights g, g', when the shutter is lowered, and vice
The shutter is raised and lowered by taking hold of the lower
lath by any suitable means, a stop or stops h being provided on the
lower lath or laths of the shutter which come against the framing of the
window when the shutter is raised. i is a roller for guiding the shutter
as it travels up and down.
versa.
The arrangement of revolving or coiling shutters so as to rise from
below the window or so as to travel from side to side across the window
according to my Invention will be readily understood from the following
description thereof by a competent workman acquainted with the
construction and arrangement of shutters of this character, and I have
not thought it necessary to show detailed Drawings thereof.

page_text: The shutters are arranged to be wound around a roller below the
window, such roller being supported by iron plates.
The end of the coiling shutter is attached according to my Invention
to the ends of chains or cords which rise and pass over pullies arranged
above or at the upper part of the window, the cords or chains having
weights suspended to them, by means of which the shutter is always
kept stretched, and the raising and lowering of the shutter facilitated.
Upon the axis of the roller below the window around which the shutter
is coiled according to my Invention a ratchet wheel is mounted, and by
means of a catch or stop taking into the teeth of such wheel the rotation
of the roller is arrested when the shutters are in the position required, the
roller upon which the shutter is coiled being turned by a handle.
When the shutter is arranged to come from the side of the window
according to my Invention it is wound upon a roller suitably supported
at one side of the window, the axis of such roller being provided with
a handle by which the shutter is wound around the roller.
For the purpose of closing the shutter a chain or rope is attached
according to my Invention to the upper part of the end of the shutter,
the other end of such rope or chain being wound round a roller worked
by, a handle at the other side of the window, so as to draw the shutter
across the window, the shutter being guided by pullies attached at
intervals to the shutter and running on an iron rod or rail supported
by the "bressummer."
The form of lath which I use according to my Invention when con-
structing revolving shutters to be applied and arranged according to my
Invention, as previously described, is shown in section at Figure 3. Ac-
cording to my Invention I make each lath with a rule joint, whereby
the whole shutter will present an uniform and level surface.
The laths constructed as shown according to my Invention may
be connected together by chains, gutta percha, leather, string or cords
passing through such laths, but I have found it preferable in practice,
and according to my Invention I connect the said laths together by
means of flexible webbing or other flexible bands j placed at intervals
and secured by screws, staples, or other suitable means, a rib of some
suitable flexible material k being introduced according to my Invention
under the webbing between it and the laths so as to form a raised

page_text: ridge above the heads of the screws or staples, and so prevent them from
coming in contact with the face of the shutter when coiled.
In witness whereof, I, the said Joseph Revill, have hereunto set
my hand and seal, this Twenty-first day of November, in the
year of our Lord One thousand eight hundred and sixty-
eight.
JOSEPH REVILL. (L.S.)