improvements in to Sashes, Casements, Doors, and for other similar Purposes.
Year: 1888

page_text: Date of Application, 1st Sept., 1888
Specification Accepted, 12th Oct., 1888
improvements in
to Sashes, Casements, Doors, and for other similar Purposes.
I HENRY WILLIAM JOSEPH WHITE of No. 1 Belle Vue Road Southampton in the
County of Hampshire Builder 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 and accompanying Drawings :-
This invention relates to an improved mode or method of securing Window Sashes,
Casements, Doors, Shutters and other similar purposes, so as to firmly secure them
from being opened from the outside of same.
I take and provide a metal plate to which is attached a bar worked as is usual in
I then provide
ordinary window fastenings this plate is attached to the upper sash.
another metal plate which is afterwards attached to the lower sash. On the under
side of this metal plate I attach a steel spring upon which spring a stud or projection
is fastened, this stud or projection by means of the spring to which it is attached
always stands up above the level of the plate, save and only when the bar is in the act
of passing over it.
When wishing to fasten the window it is only necessary to close the bar in the
usual and ordinary way i.e., by pulling it forward to a position at right angles to the
window, when doing so the stud before mentioned is compressed while the bar is
passing over it, but immediately the bar is brought home, that is to the right angled
position, the stud by reason of the spring to which it is attached returns to its original
position thereby locking the bar and consequently the window.
To relieve the bar when it is desired to open the window, the following arrangement
is made on the end of the spring a finger knob is fastened working up through the
plate, it is only necessary to push this knob downwards to likewise compress the stud
or projection when the bar is entirely free to return to its original position enabling
the window to be opened.
In order to enable my invention to be fully understood I will proceed to describe
the same by means of and with reference to the accompanying Drawings.

page_text: Figure 1 represents a sectional elevation of my improved window or sash fastener
when closed.
Figure 2 is a plan of the same.
Figure 3 is likewise a sectional elevation of my improved window or sash fastener
when the bar is in the act of passing over the stud or projection.
Figure is a plan of the same.
Figure 5 is a cross sectional elevation corresponding to figure 2.
A, A, are the plates (made either of brass, malleable, or cast iron, or other metal,
or material, as likewise the corresponding or attachable parts may be) representing a
window fastener as ordinarily made, and to which any of them my invention may be
applied as an improvement, these plates I have shewn as having an outside rim all
round thus raising the plate so as to allow of a spring plate B, to be fastened to the
underside of plate A', to which spring plate the stud or projection is fastened, D, is
a finger knob which is attached to spring B, used to compress the said spring B, and
consequently the stud or projection C, when it is required to unfasten or unlock the
bar E, so as to open the Window.
A modification of the arrangement is shewn in elevation Figure 6, by which the
finger knob D, is itself locked in the following manner. The finger knob D', is made
in two parts being hinged as shewn in Figure 6, at height level with the top of the
plate A, by this arrangement after the bar E, is brought home to its locked position
the top part of the hinged finger knob is turned down thus preventing all chances of
the spring B, and consequently the stud or projection C, from being tampered with
or pulled down from the outside of windows, doors, casements, shutters or other
similar fittings to which my fastener may be attached.
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—
The particular application and method of instantly and easily locking Sashes of
Windows, Doors, Casements, Shutters and other similar fittings on the inside, so as to
secure them from being opened or tampered with from the outside as herein before
described and illustrated in the accompanying drawings.
Dated this Thirty first day of August 1888.
HENRY WILLIAM JOSEPH WHITE.