Year: 1897

page_text: Date of Application, 16th Dec., 1897
Complete Specification Left, 24th Mar., 1898-Accepted, 28th May, 1898
We, WILLIAM MAUGHAN, of 36, Parliament Street, Middlesbrough-on-Tees,
Engineer, and JANE RIDLEY, of Catterick, both in the County of York, do hereby
declare the nature of this invention to be as follows:-
This invention relates to a sash fastener of the kind in use for fastening together
the sashes of windows.
The object and result of our invention is that the sashes are automatically locked
together by the closing of the window; provision is made to prevent the catch
from being tampered with for the purpose of opening the window from the outside
and furthermore by use in combination with a rack provided on the upper sash,
the two sashes can be locked together with the window partly open.
The invention consists as follows:-
A casing is mounted on and secured to the bar of the lower sash to contain the
catch which is worked by a draw bar extending through the casing and terminating
in a knob. The main body or trunk of the catch is confined in its movement
between the opposite sides of the casing and projects its tooth or claw when pushed
to one side, which tooth or claw is drawn in when the trunk of the catch is drawn
back to the other side. A spring provided within the casing in contact with the
catch acts upon it with a constant tendency to project the tooth or claw the form
of which combined with the resilience of the spring enables the catch to slip the
face of the upper sash in the closing direction until it shoots into the socket pro-
vided for its reception the adjustment of which results in the sashes becoming
automatically locked as they are closed together. To protect the catch from being
tampered with a detent bar is also provided which slides along the casing and when
pushed in the full distance, that is with its head flush with the casing the inner
end engages with the trunk of the catch in such a way as to prevent the inward
movement requisite to withdraw the catch from the socket. Furthermore by
detachably connecting the draw bar to the catch as by screwing it into the end of
the trunk thereof, this draw bar can be withdrawn and the spring being inaccessible
the catch cannot be moved until the draw bar is replaced. In order to secure the
sashes together with the window partly open, the tooth or claw of the catch
instead of being shot into the socket fixed in the bar of the upper sash is shot
into one of a series of notches on a rack fixed to the upper sash and standing up in
line with the vertical travel of the catch so that the catch whilst freely slipping
past the notches in the downward or closing direction can be shot into any selected
notch of the rack to prevent all further movement of the sash in the upward or
overlapping direction, thus locking the sashes together with the window partly
open.

page_text: We, WILLIAM MAUGHAN, of 36, Parliament Street, Middlesbrough-on-Tees,
Engineer, and JANE RIDLEY, of Catterick, both in the County of York, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
This invention relates to a sash fastener of the kind in use for fastening together
the sashes of windows.
The object and result of our invention is that the sashes are automatically locked
together by the closing of the window; provision is made to prevent the catch
from being tampered with for the purpose of opening the window from the outside;
and furthermore by use in combination with a rack provided on the upper sash,
the two sashes can be locked together with the window partly open.
Having thus described the nature and utility of our invention, we will now
proceed to further describe the construction, combination, and arrangement of
parts by which it is carried into effect, as illustrated by the accompanying draw-
ings, in which Fig. 1 is a plan view of a window sash fastener constructed
according to our invention. Fig. 2 is a sectional elevation corresponding to Fig. 1,
showing a rack fixed to the bar of the upper sash, for locking the two sashes
together with the window closed or partly open. Fig. 3 is a sectional view and
Fig. 4 a front view of a socket device to be fixed on the bar of the upper sash,
when no centre stay is provided; Figs. 5 and 6 are corresponding views of a
socket device to be fixed on a centre stay; Fig. 7 is a view in elevation taken
along the sash bar on which the socket of the fastener is mounted and Fig. 8 is
a plan of the fastener with catch and socket locked together with the sashes closed.
In the drawings a represents the lower sash, and 6 the upper sash; c is a casing
mounted on and secured to the bar a of the lower sash to contain the catch d,
which is worked by a draw bar e extending through the casing and terminating
in a knob el. The main body or trunk of the catch d is confined in its movement
between the opposite sides of the casing and projects its tooth or claw & when
pushed to one side, which tooth or claw, is drawn in when the trunk of the catch is
drawn back to the other side. A spring f provided within the casing in contact
with the catch acts upon it with a constant tendency to project the tooth or claw d¹,
the form of which combined with the resilience of the spring f enables the catch
to slip the face of the upper sash b in the closing direction until it shoots into the
socket g provided for its reception, the adjustment of which results in the sashes
becoming automatically locked as they are closed together. To protect the catch
from being tampered with, a detent bar h is also provided which slides along a
slot in the casing and when pushed in the full distance, that is with its head flush
with the casing, the inner end h¹ engages with the trunk of the catch as shown
in Fig. 1, so as to prevent the inward movement requisite to withdraw the catch
from the socket g. Furthermore by detachably connecting the draw bar e to the
catch, as by screwing it into the end of the trunk thereof, this draw bar can be
withdrawn and the spring f being inaccessible the catch cannot be moved until
the draw bar is replaced.
If desirable a bar i may be pivotted to the upper sash 6 and furnished with a
thumb screw j for tightening up the sashes and so prevent rattling of the window.
In order to secure the sashes together with the window partly open, the-tooth
or claw d', instead of being shot into the socket g fixed in the bar of the upper
sash is shot into one of the series of notches on a rack g¹ fixed to the upper sash
1

page_text: and standing up in line with the vertical travel of the catch as shown in Fig. 2,
so that the catch, while freely slipping past the notches in the downward or closing
direction can be shot into any selected notch of the rack to prevent all further
movement of the sash in the upward or overlapping direction, thus locking the
sashes together with the window partly open.
Where the sashes are not fitted with centre stays the socket device takes the
form shown in Figs. 3 and 4, in which the catch is shot into the hole or recess g³
for the closed position and into the slot or recess 93 for the partly open position.
But when the centre stay is provided, the socket device takes the form shown in
Figs. 5 and 6 and is furnished with a series of holes or recesses g¹g into which the
catch is shot into any selected one thus locking the sashes together in any desired
position.
In order to prevent the catch from being removed for the purpose of opening the
window whether from the outside or inside by withdrawing the screw nails in
the socket g and casing c, we provide additional screw nails 1, 2, 3, placed in side-
ward position as shown in Figs. 7 and 8, so as to be inaccessible, if the ordinary
screw nails were withdrawn, so long as the sashes remain closed together and the
socket is preferably dovetailed into the top sash for further security.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:
1). A window sash fastener consisting of a catch such as d, worked by a draw
bar such as e and controlled by a spring such as f, so that the sashes are auto-
matically locked together by the closing of the window substantially as and for
the purpose as hereinbefore described and illustrated in the accompanying
drawings.
2). In combination with a window sash fastener, as covered by the preceding
claim, the use of a detent bar, such as h, to prevent the catch from being tampered
with for the purpose of opening the window from the outside, substantially as
described and illustrated.
3). In combination with a window sash fastener, as covered by each of the
preceding claims the use of a rack or socket device provided on the upper sash,
by which the two sashes can be locked together with the window partly open,
substantially as described and illustrated.
Dated this 23rd day of March 1898.
G. J. CLARKSON,
Chartered Patent Agent, Stockton-on-Tees and Hull,
Agent for the Applicants.