Improvements in Apparatus for Raising, Lowering, or Holding in any required. Position Roller Blinds, Maps, Conservatory-shades, and the like
Year: 1895

page_text: Date of Application, 9th Nov., 1895-Accepted, 1st Feb., 1896
COMPLETE SPECIFICATION.
Improvements in Apparatus for Raising, Lowering, or Holding in
any required. Position Roller Blinds, Maps, Conservatory-shades,
and the like.
ALFRED WILLIAM READ 45 Tollemache Street New Brighton, in the County
of Cheshire, England, Roller Blind Manufacturer, 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 apparatus for raising, lowering, or holding in any
required position roller-blinds, maps, conservatory-shades, and the like, and consists
in an arrangement of apparatus for raising, lowering, or holding in any required
position roller-blinds, maps, conservatory-shades, and the like, which is simple,
compact, convenient in use and, not readily injured.
In order that my invention may be fully understood and carried into effect, I
have hereto annexed a drawing, in which drawing Fig. 1 is a front view with
certain parts removed. Fig. 2 is a back view, Fig. 3 a plan, and Fig. 4 a
vertical section taken at right angles to Fig. 1. Fig. 5 is a view of a detached
portion.
The same letters of reference are applied to corresponding parts throughout the
whole series of figures.
a. is a metal box or casing through which are formed holes, through which may
be passed screws b. by means of which the box or casing a. may be secured to any
desired part such as A.
The box or casing a. is formed open at the front, and is provided with a cover,
shewn detached in Fig. 5.
The cover c. when placed in position for closing the opening formed at the front
of the box or casing a. is held in position by means of a fillet d. which encloses
the edges of box or casing a. and is further secured in position by means of
screws b. passing through the lid c. the box a. and into any desired position such
as A.
Within the box or casing a. I place a pulley D. provided with flanges e. e.
Fast with or secured to the flange el is a hooked ratchet wheelf. Extended parts
of the bosses of the pulley D. forms journals g. 91, which journals pass respectively
into openings formed in the back part of box or casing a. and in the cover c. such
openings in the back part and cover forming bearings in which the journals g. g²,
may be revolved.
Through the part of the box or casing a. Fig. 3 is formed an opening h. through
which passes a pawl j. capable of being turned upon a screw k. by which it is
secured within the box or casing a.
A rope, steel cord, or chain E. proceeding from the roller-blind, map, con-
servatory-shade and the like, which is to be raised, lowered or held in any
required position, passes through a hole r. in the box or casing a. and is secured to
the pulley D. by the end of the said rope, steel cord, or chain being passed through
a hole in the flange e, an eye or loop being formed in the end of rope, steel cord or
chain E. and passed over the boss or journal 9. thereby preventing the rope, steel
cord, or chain being drawn back. I form a circular groove or recess inside the
lid c. to receive that portion of the rope, steel cord, or chain which is passed
through the flange e. and over the journal' g. thus preventing any obstruction to the
free revolution of the pulley D.

page_text: In order to raise or lower the roller-blind, map, conservatory-shade or the
like, from which the rope, steel cord, or chain proceeds, I employ a handle F.
indicated by the dotted lines G. which handle F. is provided with a square pro-
jecting part F2 capable of being passed into the square hole H. formed in the boss
of the pulley D.
4
When the roller-blind, map, conservatory-shade or the like is to be lowered, the
handle F. should be inserted in the square hole H. in the boss or journal g. turn up
slightly so as to release the lower end of pawl from the hooked ratchet f, take
'hold of the top of the pawl, with the finger, and turn the handle F. the reverse
'way, or backwards, until the roller-blind, map, conservatory-shade and the like
attains the required position, when upon releasing the pawl it will naturally fall
into position as shown in Fig. 2.
When it is required to raise the roller-blind, map, conservatory-shade or the
like, insert the handle F. in the square hole H. in the boss or journal 7. and
turn upwards until the roller-blind, map, conservatory-shade or the like is in the
position required, remove the handle F. from the hole H. in the boss or journal g.
and from this position it is impossible to raise or lower the roller-bliud, map,
conservatory-shade or the like, without the handle F.
I form an opening O. at the bottom of the box or casing a. so that anything
-inserted through the holes or openings in the upper part of box or casing a. may
not remain within the said box or casing a.
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 :-
The hereinbefore described apparatus for raising, lowering or securing in any
desired position roller-blinds maps, conservatory-shades and the like, which
apparatus consists of a box or casing such as a. pulley such as D. ratchet
wheel such as f. and pawl such as j, all constructed, arranged, employed and
operating for the purposes and substantially in the manner hereinbefore described
..in reference to and indicated in and by the drawings hereunto annexed.
Dated this First day of November 1895.
ALFRED WM. READ.