Improvements in Window and other Blinds.
Year: 1892

page_text: Date of Application, 6th Aug., 1892-Accepted, 24th Sept., 1892
COMPLETE
SIECIFICATION.
Improvements in Window and other Blinds.
I, JAMES SANDILANDS of No. 5, Westcroft Villas Carshalton in the County of
Surrey, Gentleman, 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 :-
'
My invention relates to certain improvements in window and other blinds, more
especially of the type or kind generally known as "Venetian," and has for its
object the construction and arrangement of blinds in such a manner as not to exclude
the light by interposing an opaque mass when it is desired to uncover the window or
other opening to which said blind may be adapted.
In order that my said invention may be the better understood I have appended
the accompanying sheet of drawings in which Figure 1 is a front elevation of a
blind to which my improvements are applied, and shewn in a closed position, and
Figure 2 and 3 are respectively a plan and sectional view of the top board, shewing
one system of arranging the swivels and cords. Figure 4 is a front elevation of a
blind fitted according to my invention and shewn lowered from the top of the
window or other opening. Figure 5 is an enlarged view of a swivel or coupling.
In carrying my invention into effect when applied to blinds of the type or kind as
before mentioned, I provide a top board A to which are pivotted a number of wheels
or pulleys c c c cover which two cords or sets of cords a and b are passed, as
shewn by the drawing. The two ends of the cord or cords a are secured to the
lower slat or board of the blind in the usual way, while the two ends of the cord or
cords are fastened to the top slat or board of the blind preferably by means of
hooks or swivels as shewn in the appended drawings by Figure 5.
These hooks
-
not only serve as supports for the blind, but also as swivels or joints for varying
with ease the position of the slats or boards forming the blind and thus regulating
the amount of light which can pass through the window or other opening. The
manner in which my invention, as thus applied, is operated, may be described as
follows, that is to say
-When the cord or cords a is or are pulled the action of
the blind is exactly similar to those of ordinary construction. If, however, the cord
or cords b as well as the cord or cords a is or are released the whole blind, together
with the board B may be lowered bodily, either into a casing made to receive it,
and attached to, or forming part of the lower portion of the window or other open-
ing to which the improved blind is adapted, or for purposes of renewal or cleaning
without using such case. In the construction of new blinds I prefer to employ one
moveable cord or sets of cords only, that is to say the cord or cords, the ends of
which are attached to the top slat B of the blind. The cord or cords a is or are
then fixed so as to form a guide to keep the blind in position while being drawn up
or lowered.
I do not confine myself to definite positions of the pulleys and cords or lines, nor
to a fixed number of them, since it is clear that with blinds of narrow width less
number of cords and pulleys may be employed, whilst a greater number is advisable
in the case of blinds of considerable width, to prevent sagging. Similarly the
relative positions of such pulleys and cords may be varied to suit the requirements
of any particular case of adaption without departing from the essential feature of
my said invention. Further, I do not confine myself to the use of any particular
material or substance in making the laths or slats, or the cords thereof, and may
modify my said invention to suit different conditions of application as hereinbefore
stated.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, 1 declare that what I
claim is: --
First. In an improved blind the arrangement of parts constituting said blind
substantially as herein described with reference to the appended drawings.
Second. In an improved blind the combination of two or more cords or set of
cords passing over pulleys, the ends of one or more being fastened to the top of the
blind and the ends of the other or others to the bottom thereof, substantially as and
for the purposes herein described and set forth, with reference to the appended
drawings.
Third. In an
improved blind the combination of two or more cords or set of cords,
one or more of which passes over pulleys the ends being fastened to the top of the
blind, the other or others being fixed at one end to the top board above the blind,
and the over end or ends to the bottom thereof to act as a guide substantially as
and for the purposes herein described and set forth, with reference to the appended
drawings.
Dated this 20th dox of July 1892
FREDK. WALKER,
11, Furnival Street, Holborn, London, E.C. Agent for the Applicant.