Improvements in or relating to Window Fasteners for Windows and analogous purposes.
Year: 1899

page_text: Date of Application, 15th May, 1899-Accepted, 15th July, 1899
COMPLETE SPECIFICATION.
Improvements in or relating to Window Fasteners for Windows and
analogous purposes.
JOHN HENRY EDWARDS, 6, Glenparke Road, Forestgate, Commercial Traveller,
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 consists of improvements in or relating to window fasteners,
and is an improvement upon the invention described in my Specification No. 219.1.1,
dated 18th October 1898. In my Specification No. 21911, I describe a bolt or
tumbler pivotally carried in the casing attached to one of the sashes, this bolt
being provided with beaks or projections one of which is acted upon by a pro-
jection carried upon the other surface, for the purpose of bringing the bolt to its
closed position, and the other beak or projection upon the bolt performs the double
function of maintaining a weight or counterpoise, and when the bolt is in its
lowered position this weight or counterpoise falls, and the said beak or projection
prevents the releasing of the bolt by its bearing against the weight or counter-
poise. This counterpoise or weight is sufficient when in its raised position to
maintain the bolt in its unlocking or upright position. Now I find it is advisable
to provide some means for preventing the separation of the sashes, and in order to
attain this object with my invention I find it convenient to provide the bolt
with a recess or projection which will when in its locking position engage in a
recess or projection formed in the catchpiece, that is to say either the bolt will
have a projection, and the catchpiece a recess, or the catchpiece a projection and
the bolt a recess, for the purpose of engagement. In a modified arrangement,
I find it convenient to provide a shoulder upon the bolt which engages in a slot
formed in the catchpiece aforesaid.
For the purpose of illustration, I will now refer to the annexed drawings,
in which:-
Figure 1 is a sectional elevation showing my fastener in its open position.
Figure 2 side elevation, showing same when closed or locked.
Figure 3 side elevation of a modified arrangement in its locked position.
Figure 4 side elevation of further modification.
Figure 5 side elevation of still further modification.
The tumbler or bolt a is pivoted at 6 to the casing c and is shaped as shewn
having beaks or projections and e, e¹ is a recess in the tumbler or bolt a which
engages upon the projection or beak, f¹ shaped as shown, and carried upon the
plate f, which is secured to the sash g and also carries a projection h for the
purpose of coming into contact with the projection e on the bolt a, upon the
downward movement of sash g, and so causing the bolt a to turn upon the pivot b
and assume the position shewn in Figure 2, thus locking the sashes in a horizontal,
and vertical direction. The weight i slides in the easing and it will be seen, that
when in the position shewn in Figure 2, the bolt cannot be raised to its perpendi-
cular position, until the weight has been raised. The action of turning the
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bolt into its locking position will raise the weight i until the beak d passes
from under it, when the weight will fall into position so as to lock the bolt a.
Referring to Figure 3, in this case I provide a projection or pin upon the
bolt a which engages in a recess or hole in the catchpiece k thus again preventing
the separation or horizontal opening of the sashes.
In Figure 4, the bolt a is provided with the shoulder which when in its
locking position will bear against the bars m in the catchpiece k and so again
prevent the separation or horizontal opening of the sashes. What I call the
horizontal opening means the forcing of them apart which might be attempted
by the insertion of a tool between the sashes. Another feature of my improve-
ment consists in the preventing of the shaking or rattling of windows as the
engaging bars upon the bolt and catchpiece may be so arranged as to tend to
draw the-sashes together when the bolt is in its locked position.
Although for purposes of illustration I have referred to the recess in the
bolt, the pin thereon and the shoulder for the purpose of carrying out the object
of this improvement I do not confine myself to this precise construction as there
are various modifications which might be made for the purpose of carrying out
my invention without departing therefrom. Of course it will be understood
that there are other analogous uses to which this fastener can be applied besides
that of windows, such as doors and the like.
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 fasteners of the class herein described, the combined construction and
arrangement of the various parts, substantially as described and illustrated herein
and for the purpose set forth.
2. In window fasteners, a pivoted bolt or tumbler carried in a suitable casing,
and being secured in its locking position by means of a sliding weight, said bolt
or tumbler having a projection upon which a beak or lip upon a plate fixed to one
of the sashes engages for the purpose of bringing the holt or tumbler into its
locking position, and another projection upon said bolt or tumbler for the pur-
pose of maintaining the locking weight in its raised position when required. A
recess, projection, or shoulder upon said bolt for the purpose of engaging with
the plate or catchpiece aforesaid so 'as to prevent the separation or horizontal
opening of the sashes substantially as described and illustrated herein and for the
purpose set forth.
3. In fasteners a pivoted bolt or tumbler carried in a suitable casing and being
secured in its locking position by means of a sliding weight, said bolt or tumbler
having a projection for engaging when required upon a beak or lip carried upon
a plate for the purpose of bringing the bolt or tumbler into its locking position,
said bolt having another projection for the purpose of maintaining the locking
weight in its raised position when required; a recess projection or shoulder upon
said bolt for the purpose of engagement between the plate or catch piece afore-
said and the bolt, substantially as described and illustrated herein and for the
purpose set forth.
1
1000