Improvements in and relating to Window Blinds, Curtains, and the like, and Apparatus for Operating them.
Year: 1899

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to Window Blinds, Curtains, and the
like, and Apparatus for Operating them.
We, SAMUEL BUCHNER, of Krakau, Merchant, and NOE SAMET, of Tarnow,
Merchant, both in Austria, 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 blinds or curtains for windows and the like and its
object is to provide simple and efficient means for closing or opening such
blinds or curtains. In carrying these improvements into effect one or more sets
of "lazy-tong" levers are employed.
In the accompanying drawings to which reference will be made hereinafter
Figure 1 represents a window furnished with the improved devices and with
the curtain in the withdrawn position.
Figure 2 illustrates the same window with the curtain half closed.
Figure 3 shows it with the curtain completely closed.
Figures 4 and 5 are respectively illustrations of the lower set of "lazy-tong"
levers in elevation and cross section.
In all the drawings the curtain or blind (afterwards referred to as the curtain)
moves laterally to close or open, but it will be understood that it can move equally
as well in a vertical or any other direction, according to the position in which
the levers are placed.
In the window illustrated "lazy-tong" levers are arranged both at the top
and at the bottom of the window frame. One limb of each set is pivotted at a
while the others are quite free to move horizontally. The limbs and bare
connected to the operating mechanism. c, c, are small rollers or friction
bowls inserted between the links of the limbs of the levers at the points nearest
to the window frame. Those at the top of the window roll along a rail d, and
those at the bottom move between the rails f, g. e, e are guide rails placed
between the links of the levers.
The "lazy-tongs" are operated by means of the two armed lever which is
pivotted at the point and is furnished with a handle i. One arm of the lever
is connected by the rod n with the free link 6 of the upper "lazy-tongs," and the
other arm is similarly connected by the rod o with the free link b¹ of the lower
'lazy-tongs."
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By imparting angular motion to the crank handle in the direction indicated
by the arrow in Figures 1 and 2 the link b is pulled downwards and the link b
is pulled upwards. This has the effect of extending the "lazy-tongs" and,
consequently, of closing the curtain the upper and lower edges of which are
attached to rings or loops 7 mounted upon the pins or shafts of the rollers c.
The "lazy-tongs may be contained within boxes at the top and bottom of
the window, and the ends of these boxes may limit the movements of the levers.
If desired only one set of "lazy-tongs may be employed, in which case it
would be arranged at the top of the window and the curtain would be suspended
from it.
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page_text: Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is: -
1. Apparatus for opening or closing window blinds or curtains and the like
consisting of one or more sets of "lazy-tong" levers to which the blind or
curtain is attached or suspended, constructed arranged and operated substantially
as hereinbefore described and as illustrated by the accompanying drawings.
2. A blind or curtain for windows or the like adapted to be opened or closed
by means of one or more sets of "lazy-tong" levers, substantially as and in the
manner hereinbefore described and as illustrated by the accompanying drawings.
Dated this 22nd day of August A.D. 1899.
W. E. HEYS & SON,
Agents for the Applicants.