Improvements in Venetian Blinds.
Year: 1888

page_text: Date of Application, 22nd Aug., 1888
Complete Specification Left, 22nd May, 1889-Accepted, 27th July, 1889
PROVISIONAL SPECIFICATION.
Improvements in Venetian Blinds.
FREDERICK JOHN BROUGHAM, of 110 St. Paul's Road, Camden Town, in the
County of Middlesex, Managing Clerk do hereby declare the nature of this invention
to be as follows:-
Venetian blinds as usually constructe are open to objection by reason inter alia of
the weight of the slats and of the considerable space they occupy when drawn to the
upper part of the window to which the blind is applied.
This invention is designed to obviate these disadvantages and to provide a venetian
blind that can be cheaply produced and easily manipulated.
To this end I form the slats of light substance such as textile material and I cause
such material to be retained in form by combining suitable stiffening material there-
with. According to one arrangement I employ a framework of wire, having the
form of the intended slat, and over this framework I place suitable material, for
example cloth such as ordinarily employed for roller blinds, securing such material in
place by any suitable means such as by stitching.
In some cases the fabric may be in the form of a tube into which the framework
may be afterwards inserted. Other material than cloth (for example paper) may
sometimes be used and other materials than wire may be used as the stiffening
medium. Slats according to this invention are used in connexion with suspending
tapes in the usual manner.
Dated thie 21st day of August 1888
F. J. BROUGHAM.
COMPLETE SPECIFICATION.
Improvements in Venetian Blinds.
I, FREDERICK JOHN BROUGHAM, of 110 St. Paul's Road, Camden Town, in the
County of Middlesex, Managing Clerk, do hereby declare the nature of this invention
and in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement:-
Venetian blinds as usually constructed are open to objection by reason inter alia of
the weight of the slats and of the considerable space they occupy when drawn to the
upper part of the window to which the blind is applied.
This invention is designed to obviate these disadvantages and to provide a Venetian
blind that can be cheaply produced and easily manipulated.
To this end 1 form the slats of light substance such as textile material and I cause
such material to be retained in form by combining suitable stiffening material there-
with. According to one arrangement I employ a framework of wire having the form
of the intended slat and over this framework I place suitable material for example
cloth such as ordinarily employed for roller blinds securing such material in place by
any suitable means such as by stitching.
In some cases the fabric may be in the form of a tube into which the framework
may be afterwards inserted. Other material than cloth for example paper may some-
times be used and other materials than wire may be used as the stiffening medium.
Slats according to this invention are used in connection with suspending tapes in the
usual manner.
In the accompanying drawings,
Figs. 1 & 2 illustrate one arrangement of Venetian blind lath according to this
invention. Fig. 1 being a plan and Fig. 2 a section on the lines A B Fig. 1.

page_text: a is a framework of wire of suitable thickness; b is fabric of the kind usually
employed for ordinary window blinds, or it may be of other fabric such as silk. It
is turned over the framework as shewn and is secured by stitching, as at c or in any
other suitable manner, for instance by the use of adhesive substance. Instead of
fabric, paper or analogous material may be employed.
In
Fig. 3 shews an arrangement in which the wire framing is open at one end.
this arrangement the free ends a a² are designed to be passed into tubular parts 3
of the fabric as shewn in Figs. 4 & 5 which are a plan and section respectively.
In some cases instead of securing the fabric to the sides and ends of the framing
as in Figs. 1 & 2, I secure it only at the ends, as shewn in plan in Fig. 6 and in
cross-section in Fig. 7. In this arrangement the fabric is in the form of ribbon.
In some cases the fabric may be in the form of a tube instead of being of single
thickness with tubular parts at the sides and ends or sides only, as in the previously
described arrangements.
Fig. 8 is a section of such an arrangement.
Figs. 9 & 10 illustrate a modification in which the lath is composed of two pieces of
cartridge paper or cardboard with a stiffening framing of wire interposed. b, represent
the paper or cardboard, which may be secured together in any suitable manner, as for
instance by adhesive substance, or by sewing. a is the framing. In Fig. 10, which
is an edgo view, the distance between 6 & 1 is exaggerated, for the sake of
clearness.
Fig. 11 is a cross-section of an arrangement in which the fabric or other material b
is secured between two framings as a which may be of metal, or wood, or other
suitable stiffening medium, the two framings being secured together by suitable
means, such as adhesive substance, or by nails or pins.
Fig. 12 is a cross-section illustrating an arrangement wherein the framing is
composed of metal of C section, such as is sometimes used for binding the edges of
cardboard boxes. b is the fabric or other material, whose sides and ends are secured
by being gripped between the upper and lower parts a³ a¹ of the framing.
Fig. 13 is a plan and Fig. 14 a section of an arrangement in which the lath is
composed of a single strip of cardboard which is stiffened by means of a metal
framing a the two being secured together by stitching or otherwise.
It will be understood that laths according to my invention are used in the same
way as laths of the kind heretofore employed, they being provided with holes, which
may be strengthened with eyclets, for the passage of the cords by which the blind' is
manipulated.
Having now particularly described and ascertained the nature of the said inven
tion and in what manner the same is to be performed I declare that what I
claim in a Venetian blind is :-
1. Forming a lath of flexible material such as fabric, paper or cardboard,, and
stiffening material, substantially as described.
2. Laths formed as shewn in and described with reference respectively to Figs. 1
and 2, Figs. 3, 4 and 5, Figs. 6 and 7, Fig. 8, Figs. 9 and 10, Fig. 11, Fig. 12, and
Figs. 13 and 14 of the drawings annexed.
Dated this 22nd day of May 1889.
F. J. BROUGHAM.