Improved Burglar Proof Fastenings for Windows.
Year: 1889

page_text: Date of Application, 9th Mar.. 1889
Complete Specification Left, 3rd May, 1889-Accepted, 22nd June, 1889
PROVISIONAL SPECIFICATION.
Improved Burglar Proof Fastenings for Windows.
1, FRANCIS THOMAS VINE B.A. Clerk in Holy Orders, Rector of the Parish of
Eastington, in the County of Gloucester, do hereby declare the nature of my
invention to be as follows:-
The object of this invention is to secure a window in such a manner that the
fastening may not be undone by a burglar or thief or other person from outside the
window, even should such person break a pane of glass which is not of sufficient size
to admit of passage of the body.
To this end I fasten to each of the lower and upper sashes of the window, if
there be two such sashes, or in a similar manner to the equivalent opening portion
of the window, a strong chain or jointed metal har or bars so that the same cannot
be unfastened, the other end of the chain being attached by any suitable detachable
fastening to the interior wall of the room or other part thereof at such a place
that it cannot be reached by an individual's arm passed through the window or
through a broken pane therein. The chain etc., may permit of the opening of the
window for a certain amount of ventilation etc.
Dated this 9th day of March 1889.
HERBERT & Co.,
Agents to Applicant.
COMPLETE SPECIFICATION.
Improved Burglar Proof Fastenings for Windows.
I FRANCIS THOMAS VINE of Eastington Rectory, near Stonehouse in the County
of Gloucester, Clerk in Holy Orders 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 :-
The object of this invention is to provide means for securing a window in such a
manner that the fastening may not be undone by a burglar or thief or other person
from outside the window, even should such person break a pane of glass which is not
of sufficient size to admit of passage of the body.
To this end I fasten to the sash of the window or to each of the lower and upper
sashes if there be two such sashes, or in an equivalent manner to the opening portion
or portions of the window, a strong chain or jointed metal bar or bars so that the
sane cannot be readily unfastened or easily broken off by any lever or tool. The
other end of the chain or bar is attached by any suitable detachable fastening to the
interior wall of the room or to any part or place therein, but always in such a position
that the fastening cannot be reached by the arm of an individual passed through the
window or through a broken pane therein. The chain or rod can therefore be so
fastened that the window is or can be opened for a certain distance sufficient for
instance for ventilation without permitting advantage to be taken of the open window
by any person desirous of effecting an entrance from outside.
In certain cases where windows or parts of windows for instance the upper sash of
the window does not need to be opened further than for a small amount necessary for
ventilation, the chain or jointed rod or bar may be permanently and practically
immovably fixed to the sash and to the frame of the window, being of sufficient
length only to allow of said small amount of opening.
The accompanying drawing illustrates this invention as applied to a window with
an upper and a lower vertically sliding sash and the details of the fastenings for a
chain.

page_text: A is the frame of the window, B the upper sash, C the chain for securing the
same, is the lower sash, E the chain therefor F F are the fasteners by which
the chains are secured to their respective sashes. G is the detachable fastener for the
chain E at a distance from the window as before mentioned. In the example
shown the upper chain C is a comparatively short one permanently fixed at both ends.
The essential features of the fasteners F F are that, the means by which they
are attached to the sashes should be concealed or covered so that they cannot be
readily unfastened, also that their strength, as well as also the strength of the
chains and other fasteners should be sufficient to withstand force likely to be
brought against them. Any fastener fulfilling these conditions, may be used, as an
example; is illustrated a ring formed on a plate let into the material of the sash
and secured by bolts passed or driven in through that face of the side bar of the
sash which is against the frame when the sash is set in the window frame. Or
an angle plate can be screwed upon the corner of the window as illustrated in
Fig. 3, said plate carrying the ring to which the chain is fastened or as in Fig. 5
where H is a strong screw welded into the plate and terminating in the ring F
to which the chain is fastened. The screw being first inserted in the sash and
screwed by turning the plate round until it is level with the sash the plate is then
to be fastened on to the sash by smaller screws. Should the plate be unfastened
by the unscrewing of these smaller screws it will still be impossible to detach it, as the
chain would prevent the turning of the large screw H. This also may be further
improved by providing the bolt H with a hole L as in Fig. 6 so that a pin may be
passed through it from the window sash.
The screw must of course be of good thickness and strength, so that the small hole
made in it for the pin would not render it liable to be broken or wrenched off. The
only object of the pin is to prevent the possibility of the screw being turned so
that it need not be a thick pin and a small hole in the screw would suffice. The
head of the pin could be covered with putty and painted over with the window sash.
As a detachable fastener I prefer to use a strong spring catch hook attached by
short length of chain to a plate which may be fastened by screws to the wainscotting
or elsewhere as in Fig. 4. Or a sliding bolt may be employed as in Fig. 1 for the
same purpose, to fasten or engage that link of the chain which is nearest to it
according to whether the sash be intended to remain entirely closed or partially open
to a desired extent. If the links of the chain are not sufficiently large to admit
of passage of the bolt or hook, rings H may be inserted at desired places in the chain
for the same purpose.
A jointed bar is applied in substantially the same manner as just described with
regard to the chain. The outer end of the jointed bar or that remote from the
sash may be perforated with a series of holes for engagement with the detachable
fastener G.
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. The combination with a sash of a window of a chain or jointed metal bar, or
equivalent connection, firmly fixed to said sash and adapted to be detachably connected
to a fastener remote from the window for the purpose set forth.
2. In a window having two vertically sliding sashes BD substantially as illustrated,
the combination therewith of the chains Cand E respectively, the chain C firmly fixed
to the sash B and to the window frame, the chain E firmly fixed to said sash D and
adapted to be detachably connected to the fastener G located as set forth.
3. In a window fastener the method of constructing and securing the fastener F as
herein before described with reference to Figs. 5 and 6.
..
1
1009
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicant.