Year: 1885

page_text: Тошко ани мало тог альшь аци пowerm
Venetian Blinds.
VICTOR EMILE ETIENNE of Gordon Road Ealing in the County of Middlesex
Gentleman do hereby declare the nature of my said invention to be as follows:--
The object of my invention is to effect the raising, lowering and sustaining
of Venetian blinds, by means of a new and improved gripping device, whereby
such blinds may be sustained in any desired position, without the aid of racks,
knobs, or other ordinary appliances.
In carrying out my invention, fit the two pullies, over which the sustaining
cords are passed, in a metallic frame or block, of special form, and which block and
its fittings constitute my invention. The inner end of the block is fitted with two
pivoted inclined planes which sustain two discs of metal. These discs are kept in
a vertical position by the sides of the channels in which they run.
These channels
are tapered, in a vertical direction, and so arranged that the discs run, by gravi-
tation, to the largest ends of the channels. They also pass to the largest ends of
the channels when the blind is being raised, and while the cords, (during such
operation) are being drawn from left to right. When, however, the cords are
"let go," the weight of the blind draws the cords in the reverse direction; this
causes the cords to engage the discs, whereby they are caused to run with the cords
to the small ends of the channels, where the cords become jammed between the
discs and the tops of the channels, and whereby the cords are effectually gripped.
and held fast, and thereby the blind is sustained.
Assistance is imparted to the gripping arrangement, in order to insure its effectual
action, by means of the pivoted inclined planes before mentioned, and also by means
of moveable plates at the larger end of the block.
When it is necessary to lower the blind, the cords are moderately pulled, so as to
disengage the grip, after which the blind can be slowly lowered.
Although I have described my invention as being applied to blinds with two cords
only, it is obvious that it is equally applicable to larger blinds having three or more
cords.
In some simpler forms of my invention I make fixed inclined planes, and dispenso.
with the moveable plates at the back.

page_text: Improvements in Fittings and Means for Raising and Lowering
Venetian Blinds.
I VICTOR EMILE ETIENNE of Gordon Road Ealing in the County of Middlesex
Gentleman, do hereby declare the nature of my said invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
The object of my invention is to effect the raising, lowering and sustaining of
Venetian Blinds, by means of a new and improved gripping device, whereby such
blinds may be sustained in any desired position, without the aid of racks, knobs,
or other ordinary appliances.
In carrying out my invention, I fit the two pullies, over which the sustaining
cords are passed, in a metallic frame or block, of special form, and which block and
its fittings constitute my invention. The inner end of the block is fitted with two
pivoted inclined planes which sustain two discs of metal-These discs are kept in
a vertical position by the sides of the channels in which they run. These channels
are tapered, in a vertical direction, and so arranged that the discs run, by gravitation,
to the largest ends of the channels-They also pass to the largest ends of the channels
when the blind is being raised, and while the cords, (during such operation) are being
drawn from left to right.-When however, the cords are "let go," the weight of
the blind draws the cords in the reverse direction, this causes the cords to engage
the discs, whereby they are caused to run with the cords to the small ends of the
channels, where the cords become jammed between the discs and the tops of the
channels, and whereby the cords are effectually gripped and held fast, and thereby
the blind is sustained.
Assistance is imparted to the gripping arrangement, in order to insure its effectual
action, by means of the pivoted inclined planes before mentioned, and also by means
of moveable plates at the larger end of the block.
When it is necessary to lower the blind the cords are moderately pulled, so as to
disengage the grip, after which the blind can be slowly lowered.
Although I have described my invention as being applied to blinds with two cords
only, it is obvious that it is equally applicable to larger blinds having three or more
cords.
In some simpler forms of my invention I make fixed inclined planes, and dispense
with the moveable plates at the back.
And in order that my said invention may be more particularly described and
ascertained, reference is hereby made to the accompanying drawings, in which
similar letters of reference indicate corresponding parts.
Fig. 1 is a top view of the block; Fig. 2 a front view; Fig. 3 a side view;
Fig. 4 a back view and Fig. 5 a sectional elevation with one side of the block
removed:
a is a metallic frame of the block; b is a division plate, which divides the
pullies and discs, and also keeps the cords apart; o. c are the pulley wheels; dis
one of the discs, of which there are two-one in each division, e is one of the
fixed inclined planes forming the bottom of the tapered channels; e' is one of the
r

page_text: pivoted inclined planes-The two planes e¹ are formed in one with the arm f,
which is pivoted at g-h is a moveable plate or lever for actuating the arm f, and
inclined planes e.
It is obvious that, with slight modifications, my invention may be adapted to any
number of cords and pullies.
The block is mortised into the blind rail k, as shewn in Fig. 5 and is secured by.
screws at i i.-The normal position of the cords . . is shewn in Fig. 3 and the
normal position of the disc d, is shewn in dotted lines in Fig. 3 and also in Fig. 5.—
When the blind is being raised the disc d assumes the position shewn; but when
the cords are "let go," they seize the upper edges of the discs d, and roll them
forward to the position d¹ (Fig. 5). In this latter position the cords are jammed
between the discs d and the roof of a, whereby the cords are firmly and securely
held, and the blind is prevented from falling.
In case the discs & should not immediately seize the cords, the latter are moved
to the right, as shewn by the arrow in Fig. 3, this moves the lever h to the right;
the upper end of the lever drives the arm f forward, and lifts the inclined planes e-
This raises the discs d into contact with the cords L, and thereby ensures the jamming.
action.
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. The method of raising lowering and suspending venetian blinds by means of
the pulley block a, fitted with sheaves or pulley wheels c, free running discs d, fixed
inclined planes e, pivoted inclined planes e¹, and lever severally operating sub-
stantially as hereinbefore described and shewn on the drawings.
2. The manufacture and use of venetian blind pulleys, constructed arranged and
operating substantially as hereinbefore described and shewn on the drawings.
3. The general combination and arrangement of the several and respective
parts, together forming my improvements in fittings and means for raising and
lowering venetian blinds, substantially as hereinbefore described and shewn on
the drawings.
T111
1