AN IMPROVED FOLDING LATTICE SUILTTER
Year: 1883

page_text: LETTERS PATENT to Philip Born of Gresham Street in the City of London
County of Middlesex for an Invention of AN IMPROVED FOLDING LATTICE
SUILTTER
PROVISIONAL SPECIFICATION left by the said Philip Born at the Office
of the Commissioners of Patents on the 27th January 1883.
PHILIP BORN of Gresham Street in the City of London County of Middlesex
AN IMPROVED FOLDING LATTICE SHUTTER
My Invention has for its object the better guarding of doors and windows of
warehouses, houses and shops by providing a more efficient means of protection
than that hitherto in use. It is especially useful for private houses, my Invention
not interfering in any way with light or ventilation and when closed almost hidden
from view.
In carrying my Invention into effect I make two wings of equal size as shown
in Fig 1, each Wing being composed of a number of perpendicular flat metal
bars (A) these are crossed by a number of horizontal bars (B) rivetted loosely
together so as to allow, as shown in Fig 2, of the free movement of the vertical
bars, the rivets acting as pivots, the whole forming when opened out a Lattice
Shutter, as shown in Fig 1
The rivets are sunk counter to the bars forming a flush surface.
The principal perpendicular bars (A) run upon rollers on the window or door
sill while the intermediate perpendicular bars (C) which are a few inches shorter
than the principal bars (A) do not rest upon the sill, but move down vertically by
their own weight, as shown in Fig 2.
When closing this Lattice Shutter each perpendicular bar at the end of each
wing slides upon the next bar (C) and this again upon the next bar (A) and so on
until all the bars of either wing rest upon the two fixed bars (E) giving the wing
the appearance of a layer of flat bars against the window or door panel.
They may be ornamented in any suitable manner.
The two outside vertical bars (E) of each Lattice Wing are securely fastened by
angle irons (H) or any other suitable means to the brickwork right and left of the
door or window to be protected.

page_text: The lengths of the principal vertical bars are regulated to the height of the door
or window.
The Lattice Shutter is thus opened and shut. On opening or closing the Lattice
Shutter two handles are used which are fixed on the two end bars (A), on the end
bar of the left wing is fastened near the centre a catch (p) and near the top and
bottom two staples (x) and on the end bar of the right wing of the Lattice is fixed
the lock.
To open the lock as shown in Fig 3. turn the key (a) in the direction of the
arrow until the tumbler (b) is pushed back, by which the lock bars (c) and (c)
become so far free, that by turning the square key (d) in the direction of the arrow,
the bar (c) slides down and the bar (c) up out of the staples (x) that is the two
bars c and c are lifted out of the staples and this part of the lock is open.
To open the catch (p) turn the key (a) in the direction of the dotted arrow,
which raises the lever (e) and withdraw the catch (p)
The guiding bands (W) serve to keep the bars c and c, in their position.
The two springs f and f serve to keep the lever (e) and the tumbler (b) in their
position
The accompanying sheet of Drawings shows the Improved Folding Lattice
Shutter when in Fig 1 closed and in Fig 2 partially closed and open
Like letter refer to like parts.
о

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Philip Born in the Great Seal Patent Office on the 21st July
1883.
PHILIP BORN of Gresham Street in the City of London County of Middlesex
AN IMPROVED FOLDING LATTICE SHUTTER
My Invention has for its object the better guarding of windows and doors of
warehouses, private houses and shops also to be used in ships where space and
ventilation is a great object, and for providing a more efficient means of protection
than that hitherto in use.
It is especially useful for private houses my Invention not interfering in any
way with light or ventilation and when closed almost hidden from view.
In carrying my Invention into effect I make two Wings of equal size as shown
in Figure I, each wing is composed of a number of perpendicular flat metal
bars A. C and D these are crossed by a number of short horizontal bars B one end
of each short horizontal bar B is rivetted to the front of the first fixed perpendicular
bar D, D, and the other end of the short horizontal bar B is rivetted to the back
of the next perpendicular bar C and then again to the next perpendicular bar A
and so on rivetted alternately to the front and back of all the perpendicular bars
as shown in the Drawing, thus allowing of the free movement of these bars as
shown in Figure 2; the rivets acting as pivots the whole forming when opened
out a Lattice Shutter as shown in Figure 1.
The rivets are sunk counter to the bars thus forming a flush surface.
The lengths of the perpendicular bars A C D are regulated to the height of the
door or window and are placed at an equal distance from each other
The two outside perpendicular bars D, D. of each Lattice Wing are securely
fastened by angle irons H or any other suitable means to the brickwork or panels
right and left of the door or window to be protected
The principal perpendicular bars A. run upon rollers on the window or door sill
while the intermediate perpendicular bars C, C, which are a few inches shorter
than the bars A, A, do not rest upon the sill but move down vertically by their
own weight as shown in Figure 2.
When closing this Shutter each perpendicular bar A at the end of each wing
slides upon the next bar C and this again upon the next bar A and so on until all
the bars of either wing rest upon the two fixed bars D, D, giving the wing the
appearance of a layer of flat bars against the window or door panels as shown in
Figure 2-they may be ornamented in any suitable manner.
The Lattice Shutter is thus opened and shut.
On opening or closing the Lattice Shutter two handles are used which are fixed
to the two end bars. On the end bar of the left wing is fastened near the centre
a Catch and near the top and bottom two Staples and on the end bar of the right
wing of the Lattice Shutter is fixed the Lock.
The accompanying Sheet of Drawings shows the Improved Folding Lattice
Shutter when in Figure 1 closed and in Figure 2 partially closed & open
Similar letters of reference indicate similar parts in each of the Figures
respectively
A Principal perpendicular bars on rollers
B Short horizontal bars the one end of which is rivetted to the front and the
other end to the back of the perpendicular bars
C Intermidiate perpendicular bars a few inches shorter than the perpendicular
bars A and D
D The perpendicular bar that is fixed to the panels or brickwork
H. The angle irons for fastening the Shutter to the Panels or brickwork

page_text: Having now described the nature of the said Invention and in what manner
the same is to be performed
I Claim and desire to secure by Letters Patent the herein before described
Improved Folding. Lattice Shutter the whole substantially as herein before
described and shown on the accompanying Sheet of Drawings
In Witness whereof I the said Philip Born have hereunto set my hand and
seal this Twenty first day of July in the Year of our Lord, One thousand Eight
hundred and Eighty three
PHILIP BORN (L.D.)