Improvements in Sash Fasteners.
Year: 1892

page_text: Date of Application, 5th Mar., 1892-Accepted, 9th Apr., 1892
COMPLETE SPECIFICATION.
Improvements in Sash Fasteners.
I SAMUEL MORRELL of the City of Wellington in the Colony of New Zealand
Bricklayer 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 :-
My invention relates to improvements in apparatus for fastening sashes or
windows and the objects of my improvements are-
First. To provide a perfectly secure fastening which cannot be undone from
without unless the window be broken.
Secondly. To provide a fastening which can be used notwithstanding shrinkage
or warping of the sash frames or extension of the sash lines.
Thirdly. To provide a fastening which will secure the window though it be
partly opened for purposes of ventilation.
I attain these objects by the mechanism illustrated in the accompanying
drawings.
DRAWINGS.
Fig. 1 is an elevation of the fastener shewing the sashes secured together.
Fig. 2 is a plan of the same.
Fig. 3 is an elevation of the fastener shewing it opened and the sashes loose.
Fig. 4 is a plan of the same.
Referring to Fig. 1 A is an upright bracket secured to the upper sash, and
notched on one side to receive a looped link.
Another bracket B is secured to the top of the lower sash and this bracket
carries a screw C with a moveable nut D. The lower part of the nut passes
through a slot in the bracket B, this slot acts as a guide to the nut in being
screwed from end to end. A thumb piece P is attached to the end of the screw
and swivels on a pin. To the unt D is attached a looped link E centred on pins
projecting from the sides of the nut and arranged to fall over the bracket A and
be drawn into the notches by means of the screw.and nut as shewn in Fig. 1.
On the top of the bracket B is a projection H arranged to meet and come in
contact with the cranked part of the looped link when the nut is screwed down the
bracket B.
Fig. 5 is an end elevation of bracket B and part of bracket A..
Fig. 6 is a longitudinal section of bracket B on line L O Fig. 5 the screw not
being shown.
Fig. 7 is a plan of the same bracket partly in section on line X Y Fig. 1 the
screw not being shewn.
Fig. 8 is a plan of the bracket B the screw not being shewn.
Fig. 9 is a section of bracket B on line M N Fig. 3 also shewing an elevation of
looped link E beyond the crank part.
TO OPEN THE WINDOW.
Fig. 1. Turn round the thumb piece and screw forward the nut which first
pushes the loop of the link clear of the notches in the bracket A. A slight turn of
the thumb piece will free the loop from bracket A so as to permit of the window
being opened. If the window is to be cleaned the loop E should be elevated as in
Fig. 3. As the nut advances further down the bracket B the cranked end of the
link near the centre meets the projection H and the end of the link E is caused to
rise clear of the notched bracket A. and also clear of the upper sash as shewn in
Fig. 3.

page_text: moved back clear of the projection H.
The link then of its weight falls over the bracket A and the loop is drawn into
the notches by the turning of the screw, see Fig. 1.
The adjustable connection by means of screw C and link E will allow for
variation in the space between the sashes while the breadth of the loop of the
link will permit of a lateral motion of the sashes due to various causes see plan
Fig. 2.
VENTILATION.
The notched bracket A will allow of the upper sash being lowered for purpose
of ventilation the link E then engages the upper notches of the bracket and is
secured.
The bracket A as shewn in section Figs. 1 and 3 is slightly out of the
perpendicular to allow of strain.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed declare that what I
claim is:
1. In appliances for fastening windows or other sashes a bracket with notches as
shewn in Figures 1 and 3 fixed on the upper sash of a window to permit of a loop
or catch or other contrivance fastened to the lower sash working in the notches
the position of the bracket being such that the notches shall adapt themselves to
the loop or catch and not necessarily as shewn in the drawings.
2. In appliances for fastening windows or other sashes the contrivance of the
projection H to raise or let fall the loop link E as shewn in the drawings.
3. In a window fastener the combination of the bracket B and the bracket A.
notched on its outer side, the looped link E the screw C the moveable nut D the
lower part of which rests in and is guided by a slot in the bracket B the pro-
jection H and the thumb picce P relatively placed as shewn by the accompanying
drawings.
Dated the 26th day of Jowo 100
Witnesses,
W. H. QUICK,
Notary Public, Wellington, New Zealand.
C. O. ROSENBERG,
Law Clerk, Wellington.
SAMUEL MORRELL.