Improvements in Sash Fasteners.
Year: 1897

page_text: Improvements in Sash Fasteners.
I, ALFRED WESTON, of No. 39, Park Green, Macclesfield, in the County of
Cheshire, Modeller and Wood Carver, do hereby declare the nature of this invention
to be as follows:-
This invention consists in a safety window fastener, and has for its object to
provide means for securing sash windows in an effectual manner and to prevent
them from being opened, by unscrupulous people, from the outside.
The various parts entering into the construction of my device, may be made of
any suitable metal or material and ornamented in any approved manner.
My fastener consists of a brass or other plate secured in any suitable manner to
the bottom bar of the upper sasli, and having an upwardly projecting piece, part
of which is bent over at right angles to such upright flange, and parallel to the plate
fixed to the sash. This part and likewise the plate are perforated to carry a pin
or the like, on which a lever turns. The rear end of the lever, through which said
pin is passed, may, at one side, be provided with a projection, abutting against the
upwardly bent flange mentioned above, when the fastener is locked, and in order to
prevent the lever from being carried too far to the left.
The forward part of the lever is provided with an upright, recessed box, which
may be one with the lever or a separate part fixed thereto. The recess is preferably
square, but I do not limit myself to this." Within this said upright, recessed part a
bolt works. The bolt is or may be square in some parts and the upper half is
preferably round. The upper extremity of this bolt, which projects through a
perforation in the top of said box, is provided with a knob or the like, secured
thereto in any approved manner. The round portion of the bolt sliding within
the upright box is provided with a spiral spring bearing against the top portion
of the box and the square part of the bolt, thus causing the bolt to drop into a
square or other perforation in a metal or other plate, fixed to the top bar of the
bottom sash. This metal plate may, if desired, be provided with an upright part,
a portion of which is bent over, to receive the lever when the same is locked.
From the above description, the working principle of my device will be readily
understood. To fasten the window, the lever is drawn over until the bolt, actuated
by the spring above named, drops into the perforation in the plate secured to the
top bar of the bottom sash, and partly into the bar itself, when the window will be
securely fastened and cannot possibly be opened by any instrument forced between
the two sashes, with a view of shifting the lever. To open the window, the knob,
with which the spring actuated upright bolt is connected, is raised, and the main
lever is pushed over until it rests upon the plate fixed to the upper sash, with which
said lever is pivotally connected.
D
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page_text: I, ALFRED WESTON, of No. 39, Park Green, Macclesfield, in the County of
Cheshire, Modeller and Carver, do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
This invention relates to window sash fasteners and has for object the provision of
a sash fastener which shall securely fasten the window to which it is applied, and
which cannot be moved from the outside of the window by means of an instrument
forced between the two sashes.
My safety window sash fastener consists of a lever a having a perforation in its
rear and one in its forward end. On the forward part of said lever a is mounted
a recessed upright part b, which part may, however, be solid with the lever. The
recess in part b is square or round according to the shape of the bolt hereinafter
mentioned. Said upright box has a perforation in its top. c is a bolt working in
the said upright part 6 and projecting through the lever a when the fastener is
locked.
The broad lower half of this bolt is by preference square (but it may be round
or of any other convenient shape) and the upper half c is preferably round. The
upper screw threaded end of said bolt projects through the top of the
upright recessed part and is secured to a knob of convenient and
'usual make. d is a spiral spring coiled round the part c¹ of the bolt.
The upper end of this spring bears against the top of box b and its lower end rests
on the top of the square portion of the bolt c.
The lever a is pivotally connected by means of a pin e with part f fixed to the
bottom bar of the top sash, which part f is of usual construction. is the usual
projection at the rear end of the lever which has for object to prevent the lever
being carried too far to the left. h is a metal plate fixed to the top bar of the
bottom sash. This plate is perforated, and the bar is recessed in its centre in order
to admit of the lower part of the bolt hereinbefore referred to and as, shown in the
drawing.
In the accompanying sketch i represents the bottom bar of the top sash and j the
top bar of the bottom sash. k, are the window panes.
The various parts entering into the construction of my fastener may be made of
brass, iron, steel or any other suitable metal.
The accompanying illustration shows the position of the fastener when the
window is secured. It will be understood that in order to move the lever a, the
knob with which the spring actuated bolt is connected has to be pulled upwardly
as far as it will go. The lever is then pushed over until it rests on the bar i, when
the window may be opened. And in order to fasten the window when closed I
merely draw the lever over the bar when the bolt c will drop through the
perforated plate h into the recess of the bar j, thus securing the window in a
simple and effectual manner.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:-
1) In a window sash fastener in combination with a lever an upright recessed
part such as mounted upon or forming part of said lever substantially as described
and illustrated.
2) In a window sash fastener in combination with a lever an upright recessed

page_text: part such as 6 mounted upon or forming part of said lever, a bolt such as b, b¹
actuated by a spring and secured to a knob substantially as described and shown.
Dated this 1st day of January 1898.
ALFRED DORST,
Agent for the Applicant, 10, Windsor Terrace, London, N.