IMPROVEMENTS IN BLIND ROLLER FURNITURE ALSO APPLICABLE TO OTHER SIMILAR ROLLERS
Year: 1882

page_text: LETTERS PATENT to John William Andrews of Whittlesea in the County of
Cambridge for an Invention of IMPROVEMENTS IN BLIND ROLLER FURNITURE
ALSO APPLICABLE TO OTHER SIMILAR ROLLERS
PROVISIONAL SPECIFICATION left by the said John William Andrews
at the Office of the Commissioners of Patents on the 19th September 1882.
JOHN WILLIAM ANDREWS of Whittlesea in the county of Cambridge
IMPROVEMENTS
SIMILAR ROLLERS
IN BLIND ROLLER FURNITURE ALSO APPLICABLE TO OTHER
The object of my invention is to produce simple and inexpensive furniture for
blind and other rollers whereby the rollers can be held in any required position while
at the same time they can be quickly and easily released so as to allow the blinds
or other articles to be drawn up or let down. With this object I make the end of
the roller on which the cord is wound after the usual pattern with two flanges to
keep the cord in its proper place. The roller is supported by brackets and on the
faces of one or more of these brackets by which they are secured in the window
frame or other position I form two lugs projecting out towards the roller. The
lower part of the face of the bracket between these two lugs projects forward so as
to form a bevel for the purpose hereinafter described. Between these two lugs is
pivotted a lever in the upper end of which is a roller and the lower part of this
lever is bent to fit the bevel on the lower part of the face of the bracket. Instead
of this bevel I may form one or more corrugations on the lower part of the face of
the bracket between the two lugs and the lower part of the lever would have
corresponding corrugations made in it. The cord of the blind or other roller after
being wound a suitable number of times round the end of the roller between the
two flanges is led over the roller in the upper end of the lever and down behind
the said lever between it and the face of the bracket and from thence hangs free.
The upper part of the lever is so formed that this cord can travel freely behind the
same until it reaches the lower part thereof where it can be jammed between the
Price 6d1

page_text: bent lower part of the lever and the bevel on the face of the bracket or between
the corrugations on the bracket and in the lever. A releasing cord is fastened to
the lower end of the lever. The action therefore is as follows. The weight of the
blind or other article acting on the upper part of the lever jams the cord between
the lower part of the lever and the face of the bracket. The roller is thus
prevented from revolving. To release the cord and allow the blind or other article
to be drawn up or let down the releasing cord is pulled and the lower part of the
lever is drawn away from the face of the bracket. The cord is then free and can
be pulled to draw the blind or other article up or the blind or other article can be
allowed to fall and unroll itself of its own weight. In cases where several cords
are required any number of these levers may be mounted side by side or a single
lever may be used having several rollers mounted in its upper end or a single long
roller that will accomodate several cords.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John William Andrews in the Great Seal Patent Office on the
19th March 1883.
JOHN WILLIAM ANDREWS of Whittlesea in the county of Cambridge
IMPROVEMENTS IN BLIND ROLLER FURNITURE ALSO APPLICABLE TO OTHER
SIMILAR ROLLERS
The object of my invention is to produce simple and inexpensive furniture for
blind and other rollers whereby the rollers can be held in any required position
while at the same time they can quickly and easily be released so as to allow of
the blinds or other articles being drawn up or let down. I will describe my
invention as applied to a blind roller and in order to clearly explain in what manner
I perform the said invention I refer to the accompanying drawing.
Figure 1 is an elevation of one end of a blind roller in position ready for use
fitted for and with my furniture.
Figures 2. 3 and 4 are sections of the same taken at a. b. in Figure
sections of different forms of the lever hereinafter described.
shewing
Figure 5 is a front elevation of the bracket for a blind roller as arranged for my
furniture.
Figure 6 is a section of the same taken at c. d. in Figure 2 shewing a front
elevation of the lever hereinafter described.
The letters are the same in all the Figures.
The end of the blind roller A is fitted with two flanges B between which the
cord C is wound round the said roller. This roller A is supported by the bracket D
on the face E of which I form the two lugs F projecting out towards the roller.
The lower part of the face E between the two lugs F projects forward so as to form
a bevel as shewn at G in Figures 2 and 3 or has a corrugation or corrugations
formed thereon as shewn at H in Figure 4. Between the two lugs F is pivotted
the lever K in the upper part of which is the roller L and the lower part M of the
said lever K is so shaped as to fit the bevel G or the corrugation H on the lower
part of the face of the bracket hereinbefore described. A releasing cord N is
attached to the lower end of the lever K and this cord may either be led through
an eye P on the front of the bracket as shewn in Figures 1 and 3 or allowed to
hang free as shewn in Figures 2 and 4. The cord C having been wound a suitable
number of times round the end of the roller A between the flanges B is passed over
the roller L and down behind the lever K between the said lever and the face E of
the bracket. The upper part of the said lever K is so formed that this cord C can
travel freely behind the same but the lower part M thereof is so made that it can
jam the said cord C against the bevel G or the corrugation H. A convenient
method of effecting this is shewn in the drawing where a long slot is formed in the
upper part of the lever in which the roller hereinbefore mentioned is pivotted and
revolves and up which the cord travels freely while the lower part of the lever is
solid so that it can jam the said cord but I do not limit myself to this exact shape
for the lever may be made in any form that may be convenient. The action
therefore of this apparatus is as follows. When the cord N is released the weight
of the blind acting on the upper part of the lever K through the cord C jams the
said cord C between the lower part M of the lever and the bevel Ġ or the
corrugation H as shewn in Figures 2 and 4. The roller is therefore prevented
from revolving and the blind is held in the desired position. When it is required
to draw up or let down the blind the releasing cord N is pulled by which the said
lower part M of the lever is drawn away from the said bevel G or the corrugation H

page_text: on the face of the bracket as shewn in Figure 3 and the cord C is free and can be
pulled to draw the blind up or the blind may be allowed to unroll itself and fall by
its own weight.
In cases where several cords are required any number of levers may be mounted
in the bracket side by side or a single lever may be fitted to accomodate the
several cords.
This furniture as herein before described can obviously be applied in the same
manner to all other similar rollers.
Having thus particularly described and ascertained my invention and in what
manner the same is to be performed I would have it clearly understood that I do
not limit myself to the exact shapes or methods of construction as shewn in the
drawing though I consider the said shapes and methods of construction are very
suitable for my purposes as hereinbefore described but that I may make the various
parts of my apparatus of such shapes and sizes and in such a manner as may be
suitable or convenient in each case but what I do claim as my invention which is
secured to me by the hereinbefore in part recited Letters Patent is the furniture
for blind and other rollers whereby the rollers can be held in the required position
while at the same time they can quickly and easily be released substantially as
hereinbefore described and set forth.
In witness whereof I the said John William Andrews have hereunto set my
hand and seal this fifteenth day of March in the year of our Lord one
thousand eight hundred and eighty three.