An Improved Device for Facilitating the Lowering of Venetian Blinds, Applicable also as a Sash Fastener.
Year: 1886

page_text: An Improved Device for Facilitating the Lowering of Venetian
Blinds, Applicable also as a Sash Fastener.
I JOHN WILLIAM MORISON of Saint Marys Villa, Stainsforth Road, Hoe Street,
Walthamstow, in the County of Essex do hereby declare the nature of this invention
to be as follows:-
This invention relates to an improved device to be applied to window sashes for
facilitating the lowering of venetian blinds and also to serve as a sash fastener thereby
enabling the usual sash fastener to be dispensed with.
It is well known that great inconvenience has hitherto been experienced when
lowering venetian blinds from the fact that the bottom of the blinds generally lodge
on the meeting rails of the sashes and either have to be lifted therefrom or guided past
the rails by hand.
By my invention this inconvenience is obviated and the blind can be lowered to its
full extent without risk of its lodging on the rails.
The improved combined device and sash fastener consisis of a jointed or hinged
curved or inclined arm or bracket the lower end of which is adapted to be screwed or
otherwise suitably fixed to the sash. I find it advantageous to employ one of my
improved devices at each end of the meeting rail of the front sash; the upper end of
the said arm or bracket extends upwards and over the meeting rail of the upper sash
its end forming a catch which takes into the teeth of a rack on the side rail of the
upper sash.
By the use of these devices, the bottom of the blind when the blind is being lowered,
will pass or slide over the curved or inclined arms or brackets which will act as guides
to the bottom of the blind until it has passed the meeting rails of the sashes.

page_text: When it is required to open the sashes the upper end of the device is turned on its
hinge or joint away from the sash so that the sashes can then be opened.-When the
sashes are closed, the device is pushed back to its normal position and its end will take
into the teeth of the rack and thus fasten the same securely and prevent rattling.-A
spring is employed to keep the upper end of the device in its closed and open
positions.
When the device is applied to fixed sashes it will be obvious that the same is made
without a hinge or joint and that no rack is required on the sash. Also that for
fixed sashes the device can be fixed to the bottom lath of the blind instead of to the
sashi.
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.

page_text: Blinds, Applicable also as a Sash Fastener.
I JOHN WILLIAM MORISON of Saint Mary's Villa, Stainsforth Road, Hoc Street,
Walthamstow, in the county of Essex, Salesman, 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 an improved device to be applied to window sashes for
facilitating the lowering of venetian blinds and also to serve as a sash fastener thereby
enabling the usual sash fastener to be dispensed with.
It is well known that great inconvenience has hitherto been experienced when
lowering venetian blinds from the fact, that the bottom of the blinds generally
lodge on the meeting rails of the sashes and either have to be lifted therefrom or
guided past the rails by hand.
By my inveniton this inconvenience is obviated and the blind can be lowered to its
full extent without risk of its lodging on the rails.
The improved combined device and sash fastener consists of a jointed or hinged,
curved or inclined arm or bracket the lower end of which is adapted to be screwed or
otherwise suitably fixed to the sash. I find it advantageous to employ one of my
improved devices at each end of the meeting rail of the front sash; the upper end of
the said arm or bracket extends upwards and over the meeting rail of the upper sash
its end forming a catch which takes into the teeth of a rack on the side rail of the
upper sash.
In order to enable my invention to be fully understood I will describe how the same
may be carried into practice by reference to the accompanying drawing in which
figure 1 is a side elevation of my improved device for facilitating the lowering of
venetian blinds in its closed or normal position figure 2 is a similar view shewing
the device in its open position; figure 3 is a front elevation of a sliding-sash window
with my improved device applied thereto; figure 4 is a vertical section of figure 3;
figure is an elevation of the device suitable for fixed sashes. Figures 1, 2 and 5 arc
drawn to a larger scale than figures 3 and 4. Similar letters in all the figures represent
similar parts.
a, b, represent the jointed or hinged curved or inclined arm or bracket forming the
improved device the lower end b, of which is adapted to be screwed or otherwise
securely fixed to the lower sash c. In the drawing one of my improved devices is
shewn applied to each side of the sash. The upper end a, of the device or bracket
is jointed to the lower part b, at d, and extends upwards and over the meeting rail of
the upper sash as shewn, its end forming a catch e; ff, are the racks one of which is
fixed on each side rail of the upper sash, the said catch e, being adapted to take into
the teeth of the said rack as shewn.
By the use of these devices, the bottom of the blind g, when the blind is being
lowered, will, as shown by the dotted line in figure 4, pass or slide over the curved or

page_text: inclined arms or brackets which will act as guides to the bottom of the blind until it
has passed the meeting rails of the sashes.
When it is required to open the sashes the upper end a, of the device is turned on
its hinge or joint d, away from the sash into the position shewn in figure 2 so as to
remove the catches e, from the racks f, and the sashies can then be opened. When the
sashes are closed, the upper part a, of the devices are pushed back to the normal
position, see figures 1, 3 and 4, and their catches e, will take into the teeth of the
racks, and thus fasten the sashes securely and prevent rattling. A spring h. is
employed to keep the upper end a, of the device in its closed and open positions.
It will be seen that this improved device allows of the sashes being fastened in an
open position.
When the device is applied to fixed sashes it will be obvious that the same is made,
as shewn in figure 5, without a hinge or joint and that no rack is required on the sash.
Also that for fixed sashes the device can be fixed to the bottom lath of the blind
instead of to the sash..
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 construction and application to sliding sashes of a jointed inclined arm or
bracket in combination with a rack for facilitating the lowering of Venetian blinds
and serving also as a sash fastener arranged and operating substantially as hereinbefore
described and illustrated in the accompanying drawing.
2. The use with Venetian blinds of a device such as that shewn in figure 5 for
facilitating the lowering of the said blinds substantially as hereinbefore described.
Dated the 28th day of February 1887.
G. F. REDFERN.
4, South Street, Finsbury, London,
Agent for the Applicant.