An Automatic Cord Stop for Venetian and other Window Blinds.
Year: 1886

page_text: Date of Application, 3rd Aug., 1886.
Complete Left, 22nd Apr., 1887.
Complete Accepted, 17th June, 1887.
An Automatic Cord Stop for Venetian and other Window Blinds.
RICHARD WHITEHEAD 5 Well Road Heeley Sheffield Yorkshire Engineer do
hereby declare the nature of this invention to be as follows :-
This invention relates to a simple method by which cords may be stopped as desired
it consists of a small frame or box containing a pulley or pulleys (where required)
and a stop and is as follows The frame or box is raised upright having the top end
removed in order to allow part of the pulley to project a little above the frame. In
the bottom end and close to one side is a hole for the cord to pass through. The stop
is made the width required and the length to reach across the box and is placed just
under the pulley and works on a hinge at one end that end which is furthermost from
the hole in the bottom end of the box so that the other end falls by its own weight
partly over the hole at the bottom end but projecting a little over the hole so that
the cord may touch it when held at one angle yet leaving the cord free
when held at another angle so that a cord or cords from a Venetian window
blind passing over the pulley and through the hole at the bottom end of the frame
can be stopped as follows Raise the blind by the cord as required keeping the
cord in contact with the end of the stop then loose the cord and the end of the
stop will rise with the cord and thus hold the cord between the end of the stop and
the side of the frame or by holding the cord from the stop. It may be raised or
lowered as desired
Dated this 31st day of July 1886

page_text: COMPLETE SPECIFICATION.
An Automatic Oord Stop for Venetian and other Window Blinds.
I RICHARD WHITEHEAD of No. 5 Well Road, Heeley, Sheffield in the County of
York Engineer 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 :-
This invention relates to a simple method by which cords may be held as desired.
It consists of a frame, or frame and box containing or holding a stop or stops and
a pulley or pulleys and is as follows. The box is open at the top in order to allow
part of the pulley or pulleys to project a little above the frame. In the bottom and
close to one end of the box is a hole for the cord to pass through. Or the stop may
be contained in a smaller box alone with a hole at the top and one in the bottom for
the cord to pass through and be attached to the frame and placed just under a much
larger pulley and will thus act as a guide for the cord over the pulley.
The stop is made the width required and the length to reach across the Box to the
end just over the hole in the bottom and may be made straight or curved or thin and
curved so as to spring and hold the cord lightly.
The end that holds the cord may be either square, bevelled, rounded or have teeth
either lengthwise or cross-wise and is placed just under the pulley or just under the
top of the box where the box contains only the stop. The stop works on a hinge at
the end which is furthermost from the hole in the bottom of the box so that the other
end falls by its own weight partly over the hole in order that the cord may touch it
when held at one angle yet leaving the cord free when held at another angle. Thus a
cord passing through the box and over the pulley having weight attached may be held
or let loose as follows. Raise the blind or weight by the cord to the height required
keeping the cord in contact with the end of the stop then loose the cord and the end
of the stop will rise with the cord and thus hold the cord between the end of the stop
and the end of the box. Or by holding the cord at an angle from the stop it may be
raised or lowered as desired.
In order that my specification may be thoroughly understood I refer to the annexed
Sheet of Drawings. Figure 1 shews Stop A (not in action) and Pulley B in one Box
or frame D.
Figure 2 is another view shewing Stop A holding cord C.
Figure 3 shews Stop A (not in action) encased in a small box D attached to frame E
and placed under a much larger Pulley B.
Figure 4 is another view shewing the arrangement of the box D containing the
stop placed under the pulley B attached to the frame E.
Figure 5 shews a spring stop A holding the cord C.

page_text: Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is
1. Encasing the Stop so keeping it free from any extraneous matter.
2. Placing the Pulley and Stop near together the Box thus acts as a guide for the
cord to pass over or round the Pulley.
3. Curving the Stop so as it rises the end turns up and thus it cannot possibly cut
the cord.
4. Making the stop thin and curved so as to spring to enable the operator to take
hold of the blind and draw it down without using the cord.
5. Bevelling or putting teeth on the end of the stop so that it will act with the
slightest contact with the cord.
6. The stop acting simply by the light weight or pressure of the cord alone without
the aid of any spring lever or any other matter.
Doted this 91st dor of Anvil 1887