Year: 1899

page_text: I, THOMAS HUDSWELL, of Cross Bank, Batley, Yorkshire, Fish and Potato
Dealer, do hereby declare the nature of this invention to be as follows:-
The object of my invention is to secure and fasten window sashes when either
closed or open, to enable window sashes to be opened to any distance to allow
ventilation, and to secure and fasten them so that they can only be altered,
raised, or lowered from the inside of the room, to prevent anyone from outside
altering the position of the window sashes either by raising or lowering the whole
or any portion thereof.
My improved fastener and holder consists of a hinged plate, which is screwed
at one side of the hinge to the top rail of the lower sash, the other (moveable)
side of the plate projecting over the bottom rail of the upper sash. Each half of
the hinged plate has a projecting lug, the said lugs being bored to receive a
thumbscrew which passes through them (so holding the hinged plate extended)
and engages at its outer end with an eyelet on the bottom rail of the upper sash.
A suitable stop or catch is fixed at any desired height to the upper sash stile
in such a position as to engage with the moveable side of the hinged plate when
the said plate is extended.
To fasten the window when closed, the thumbscrew is screwed home so as to
engage with both lugs and the eyelet.
To allow a limited opening of the sash and prevent further opening from the
outside, the thumbscrew is withdrawn from the eyelet: this allows the sashes to
be opened until the plate comes into contact with the stop.
To open the window to its full extent the thumbscrew is withdrawn from both
eyelet and lug the moveable part of the hinged plate is then raised so as to clear
the stop on the sash stile.
If desired a separate fastener may be provided for each sash; in this case the
hinged plate is fixed to the eash stile, and the eyelet and stop to the pulley stile.

page_text: the same is to be performed, to be particularly described and ascertained in and
by the following statement: -
My invention relates to a fastener for sliding-sash windows, the object being to
enable such windows to be opened to any required extent for purposes of ventila-
tion, and to secure and fasten the sashes (when either closed or open) in such a
manner that they can not be raised, lowered, or altered in any way except from
inside the room.
DESCRIPTION OF DRAWINGS.
Fig. 1 is a front elevation of part of a sliding-sash window with my improved
fastener applied.
Fig. 2 is a plan of Fig. 1.
My improved sash fastener and holder consists of a hinged plate, of which one
half A is screwed at one side of the window to the top rail C of the lower sash,
the other (moveable) half B projecting over the bottom rail D of the upper sash.
The fixed half A of the said hinged plate has a projecting plain lug E, and the
moveable half B has a corresponding screwed lug F. Through the said lugs is
passed a thumbscrew G having a quick worm thread; this thumbscrew when
screwed home holds the hinged plate A B extended, and engages at its outer end
with a plain eyelet H on the said bottom rail D. A suitable stop or catch K is
fixed at any desired height to the upper sash stile L, in such a position as to
engage with the side of the plate B when the said plate is extended. The edge of
the said plate B may be slightly bevelled to clear the moulding of the sash stile L.
To fasten the window when closed, the thumbscrew G is screwed home so as to
engage both the lugs EF and the evelet H.
To allow a limited opening of the sash and prevent further opening from the
outside, the thumbscrew G is withdrawn from the eyelet H: this allows the sashes
to be opened until the plate B comes into contact with the stop K, the height
of which may be arranged as required.
To open the window to its full extent the thumbscrew G is withdrawn from both
the eyelet H and the lug F; the moveable plate B is then turned on its hinge so
as to clear the stop K on the sash stile L.
If desired right and left fasteners may be employed, one at each side of the
window; or (when applied to sashes with two panes) the fastener may be attached
in the middle of the top rail C of the lower sash, the stop K being in this case
fixed to the vertical bar dividing the panes of the upper 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. In a window sash fastener the employment of a hinged plate with one half
fixed to the sash and the other half projecting so as to engage with a suitably
placed stop, the halves of the said plate being rigidly extended when required so
as to limit the opening of the window and prevent outside interference, in the
manner substantially as shown and described.
2. The complete window sash fastener, consisting of a hinged plate AB,
lugs E, F. thumbscrew G. eyelet H, and stop K, arranged and operated substan-
tially
Iv as shown and described.
1000
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent for the Applicant.