IMPROVEMENTS IN VENETIAN BLINDS
Year: 1881

page_text: LETTERS PATENT to Walter Brierley, of Halifax, in the County of York, &
Blackburn, in the County of Lancaster, Patent Agent, for an Invention of
"IMPROVEMENTS IN VENETIAN BLINDS." A. communication from abroad by
Fromz Rühr, of Teplitz, Austria-Hungary,
PROVISIONAL SPECIFICATION left by the said Walter Brierley at the Office
of the Commissioners of Patents on the 13th August 1881.
:
WALTER BRIERLEY, of Halifax, in the County of York, and Blackburn, in the
County of Lancaster, Patent Agent. "IMPROVEMENTS IN VENETIAN BLINDS." A
communication from abroad by Fromz Rühr, of Teplitz, Austria-Hungary.
This Invention relates to improvements in devices for adjusting the laths of
venetian blinds, and the object of the said improvements is to combine in a simple
manner a new blind lath adjuster with a device for raising and lowering the blind
laths.
•
The object aforesaid is attained by an arbour provided with two pivots turning
in bearings secured to an outer frame. The bands which pass through the laths
are attached to the lowest lath and wound round the said arbour.
By pulling & cord wound around the arbor in the direction opposite to that of
the narrow bands referred to, the laths are raised in the usual manner.
The arbor is surrounded by hollow cover oscillating or partially so around pivots.
To the longitudinal edges of the said cover are fastened broader bands by strings
connecting the bands, and support the laths. One edge of the cover is at a greater
distance from the fulcrum of the cover than the other, and by this means the
absence of equilibrium of the cover induces an inclined position of the laths.
By pulling more or less the cord attached to the cover, the laths may be adjusted
to the horizontal or to any angle, and held securely in such position by fastening
the cord to a button; the button is designed for receipt of and for securing the
cord. The lattice is kept back by a clasp and obviates the trouble of turning the
arbor.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Walter Brierley in the Great Seal Patent Office on the 11th February
1882.
WALTER BRIERLEY, of Halifax, in the County of York, and Blackburn, in the
County of Lancaster, Patent Agent. "IMPROVEMENTS IN VENETIAN BLINDS." A
communication from abroad by Franz Rühr, of Teplitz, Austria-Hungary.
This Invention relates to improvements in devices for adjusting the laths of
venetian blinds, and the object of the said improvements is to combine in a simple
manner a new blind adjuster with a device for raising and lowering the blind
laths.
Such being the nature and object of this my said Invention, I will now proceed
to describe the same in detail, and in order that the Invention may be
fully understood, I have hereunto annexed a Sheet of Drawings illustrative

page_text: The steel band a used instead of the band D is also attached to the lowest
lath B', but the latter has in this case no connection with the bands b.
Fig. 6 shews the lowered, and Fig. 7, the raised laths. The uppermost bands b
are connected to the cover K. to the links n.
The device shewn in Figs. 8, 10, is designed to catch and hold automatically the
cord E, and so secure the blind in any position required. W is the dormanttree of
a window to which the support fis fastened. In the horizontal slots h of this
support moves the pivots 9 of the roller o. The frame oscillating round its
fulcrum pin K lies close to the protruding ends of the pivots g.
If the cord E is pulled in direction of the arrow (Fig. 9), the roller o is moved to
the utmost end of the slot h, and the cord E may freely slide over the roller o.
But if after the blind being raised or lowered as required, the hand ceases to pull
the cord E in the direction of the arrow (Fig. 9) or releases the same, the roller o
will immediately pass to the innermost end of slot h, and the cord E will be
squeezed in between the roller o and the inclined plane m of the support f, as
shewn in Fig. 10.
Having thus fully described the nature and particulars of this my said Invention
together with the manner in which the same is to be or may be performed or
carried into practical effect, I would have it understood that what I claim as the
Invention is,
Firstly. The combination of arbour G with pivots H, cover K, and cord F,
substantially as specified.
Secondly. The combination of the bands C fastened to the edges of the cover K,
strings M, and bands D wound round the arbour G, for purpose described.
Thirdly. The combination of short steel bands 6 with loops d and links n,
substantially as described.
Fourthly. The combination of roller o with pivot g, the oscillating frame i, and
inclined plane m, for purpose described.
In witness whereof, I, the said Walter Brierley, have hereunto set my hand
and seal, this Tenth day of February, in the year of our Lord One thousand
eight hundred and eighty two.
THAT Man
TATRATT