Improvements in or connected with Window and other Fasteners.
Year: 1893

page_text: Date of Application, 24th Nov., 1893-Accepted, 30th Dec., 1893
COMPLETE SPECIFICATION.
Improvements in or connected with Window and other Fasteners.
I ARTHUR JOHN JEWERS of 19 Chamberlain Street Wells in the County of
Somerset Dental Surgeon 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 :-
The invention relates to improvements in or connected with window and other
fasteners and has for its object primarily to obtain a window fastener which is
inseparable from the window sash which will draw together the two sashes so as to
exclude draught and prevent rattling and by means of which one of the sashes may
be fixed in a partially open position with relation to the other.
For this purpose according to one arrangement I employ a quick threaded screw
which screws through a threaded bush or fitting fixed in the meeting rail of the
lower sash preferably at one side thereof and I provide this screw with a fly head
to facilitate the turning thereof.
The opposite end of the screw for a short length I form of larger diameter than
the body and with a slightly quicker thread whilst I provide a corresponding screw
bush or socket or fitting which is countersunk in the opposite meeting rail of the
upper sash so that by turning the screw in one direction the enlarged end will
engage the screw bush or socket and by reason of the quicker thread draw the two
meeting rails firmly together whilst by turning the screw in the opposite direction
the enlarged end will be disengaged from the screw bush or socket and will be
retracted into a recess provided for its reception in the meeting rail of the lower
Bash thereby freeing both sashes.
By these means the two sashes may be firmly locked together without any
possibility of the fastener being undone from the outside and at the same time the
meeting rails of the two sashes will be drawn together with a considerable pressure
thereby making a comparatively tight joint and preventing rattling whilst when the
fastener is unscrewed the enlarged end prevents the entire removal thereof from
the bush or fitting so that it is impossible for it to be lost or mislaid an accident
only too common with ordinary screw fastenings.
In order that either of the sashes may be fixed in a partially open position I
provide a second screw bush or socket in the stile of the upper sash a short distance
above the first screw bush or socket so that by lowering the top sash the required
distance and causing the screw to engage the second bush or socket I am enabled
to securely fix the window in such a position that it is impossible for a person
outside to obtain access to the fastener and open the window to any greater
extent.
In some cases I form the screw with a square recess or projection and I
correspondingly form the head so that it will constitute a removeable key adapted
to turn the screw in the manner desired.
As a modification in lieu of forming the end of a screw of a larger diameter than
the body thereof I form the screw of the same diameter from end to end and I fix
at a suitable distance from the end thereof a projection or projections thereby pre-
venting the separation of the parts as hereinbefore described with respect to the
previous arrangements.
In applying my invention to French windows or doors I provide the screw bush
with lugs to receive screws or other means of fixing it upon the face of one of the
meeting stiles whilst I similarly fix the screw Bocket on another of the meeting
parts.
And in order that the said invention may be more clearly understood and readily

page_text: carried into effect I will proceed aided by the accompanying drawings more fully
to describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a vertical transverse section taken on the line 1-1 of Figure 2
representing an ordinary window having the invention applied thereto.
Figure 2 is a horizontal section thereof taken on the line 2-2 of Figure 1.
Figure 3 is an inside elevation drawn to a reduced scale of a partially open
window illustrating the application of the invention thereto as a means of fixing it
in its open position.
Figure 4 is a side view representing a screw part of a fastener formed with a
detachable head or key.
Figure 5 is an end view thereof.
Figure 6 is an end view of the screw with the key or head removed.
Figure 7 is an end view of the key or head separately and
Figure 8 is a side view thereof.
Figure 9 is a similar view to Figure 1 but representing a slight modification.
Figure 10 is a front elevation of a portion of a French window having the
invention applied thereto.
Figure 11 is an end view thereof and
Figure 12 is a horizontal section taken on the line 3-3 of Figure 10.
In the several figures like parts are indicated by similar letters of reference.
Referring to Figures 1 to 3 a represents the meeting rail of the lower sash
b represents the meeting rail of the upper sash whilst ab represent respectively
the stiles of those sashes.
e represents a bush or fitting which is countersunk in the meeting rail a of the
lower sash preferably at one side thereof and is fixed in position by means of
screws passing through the face plate c' thereof.
Mounted in the bush c and engaging the thread thereof is a screw d which
is provided upon its outer end with a fly head d' fixed in position by a pin d² to
facilitate the turning thereof or the fly head may be cast in one piece and the bush c
divided longitudinally to admit the screw d.
The opposite end of the screw d for a short length d is formed of larger
diameter than the body d thereof and with a slightly quicker thread whilst a screw
bush or fitting c" similar to that c hereinbefore described and provided with a
corresponding female thread is countersunk in the opposite meeting rail b of the
upper sash so that by turning the screw d in one direction the enlarged end d* will
engage the screw bush or socket c* and by reason of its quicker thread draw the
two meeting rails a b firmly together whilst by turning the screw d in the opposite
direction the enlarged end d will be disengaged from the screw bush or socket c*
and will be retracted into a recess a² provided for its reception in the meeting rail a
of the lower sash thereby freeing both sashes.
By these means the two sashes may be firmly locked together without any
possibility of the fastener being undone from the outside and at the same time the
meeting rails a b of the two sashes will be drawn together with a considerable
pressure thereby making a comparatively tight joint and preventing rattling whilst
when the fastener is unscrewed from the bush or socket c the enlarged end d* will
prevent the entire removal thereof from the bush or fitting c so that it is
impossible for it to be lost or mislaid an accident only too common with ordinary
screw fasteners.
In order that either of the sashes may be fixed in a partially open position.
a second screw bush or socket c* is provided in the stile b' of the upper sash a short
distance above the first screw bush or socket c* so that by lowering the top sash
the required distance and causing the screw d to engage the second or upper bush
or socket indicated at Figure 3 the window may be securely fixed in such a position
that it is impossible for a person outside to obtain access to the fastening and open 5
the window to a greater extent.

page_text: In the example given at Figures 4 to 8 the screw d is formed with a square
recess d³ and the head d' is formed with a corresponding projection d' so that it will
constitute a removeable key adapted to turn the screw d in the manner desired or
the arrangement of these parts might if desired be reversed that is to say the
screw d might be formed with a square projection and the head d' might be formed
with a corresponding recess.
In the example given at Figure 9 instead of forming the end of the screw d of a
larger diameter than the body thereof as hereinbefore described with respect to the
previous figures the screw d is of the same diameter from end to end thereof and in
lieu of the enlarged end the screw d is provided in a suitable position with a
projection or projections d** formed by a pin passing through the screw d or
otherwise thereby preventing the separation of the parts as herein before described
with respect to the previous arrangements but this form of screw is inferior to that
hereinbefore described inasmuch as the thread is of the same pitch from end to end
and consequently does not draw the meeting rails a and b together to the same
extent.
In the example given at Figures 10, 11, and 12 the screw bush or fitting c and
the screw bush or socket c* are arranged to project from the window and for this
purpose they are provided with base plates c¹ to receive screws c³ by means of which
the fittings c c* are fixed upon the inner faces of the meeting stiles a b of
the window.
It will be understood that when the fastener is applied to an ordinary door it
may be fixed in any suitable position such as that hereinbefore shown and described
with respect to a French window or it may be fixed at the bottom or top of a door as
may be found convenient and the form of the bush or socket c* will necessarily vary
accordingly.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what I
claim is :-
1. In a window or other fastener the combination of a screw formed with threads
of differential pitch at different parts of its length and corresponding screw bushes
or fittings adapted to be fixed to the articles or parts to be fastened together
substantially as herein shown and described.
2. In a window or other fastener the combination of a screw formed of two
diameters having threads of differential pitch and corresponding screw bushes or
fittings adapted to be fixed to the articles or parts to be fastened together
substantially as herein shown and described.
3. In or in connection with a window or other fastener the combination of a
screw, corresponding screw bushes or fittings adapted to be fixed to the articles to
be fastened together a shoulder or projection from the screw located in a suitable
position and adapted to prevent its complete withdrawal and a recess to receive such
projection substantially as herein shown and described.
4. In or in connection with a screw window or other fastener the combination of
a screw a stop upon the screw and a recess to receive the stop upon the retraction
of the screw substantially as herein shown and described.
5. In a window or other fastener the combination of a screw corresponding screw
bushes or fittings adapted to be fixed to the articles or parts to be fastened
together and a loose key for turning the screw substantially as herein shown and
described.
Dated this 24th day of November 1893.
WHITE & WOODINGTON,
27, Southampton Buildings, London, Agents.