IMPROVEMENTS IN AUTOMATIC AND OTHER SASH-FASTENERS
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I JOHN PARKER of 36 Mark Lane, Corporation Street Manchester in the
County of Lancaster, Metal Merchant do hereby declare the naturo of my said
Invention for "IMPROVEMENTS IN AUTOMATIC AND OTHER SASH-FASTENERS" to bo
as follows:-
The object of this invention is the construction of an automatic sash-fastener
which not only fastens the sash self-actingly but also provents the unpleasent
rattling of the sash in windy weather.-In carrying out my invention I apply a
metallic plate to the side of the window casement, upon which plate a catch is so
suspended that as soon as the lower sash is at the bottom of the casemont it falls
forward automatically and so grasps the top rail of the sash and effectually prevents
the samo being opened-whilst to open the sash again it is only necessary to
throw back the said catch. To prevent the rattling of such sash I arrange a
clamping screw to pass through a projection from the same plate and which screw
is capable by means of its milled head of being screwed up tight against the sash
whilst its other end is fitted with a loose washer so as not to damage the sush
or paint.
In some cases I construct the clamping screw arrangement separate from the
sash-fastener and thus the rattling is not only prevented but the sash is securely
fastened in the closed or any other desired position.

page_text: COMPLETE SPECIFICATION.
I JOHN PARKER of 36 Mark Lane, Corporation Street, Manchester, in the
County of Lancaster Metal Merchant do hereby declare the nature of my invention
for "IMPROVEMENTS IN AUTOMATIC AND OTHER SASH FASTENERS," 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-the-construction-of-an-automatic_sash fastener
which not only fastens the sash self-actingly-but-also-prevents-the-unpleasant_
rattling of the sash in windy weathër.
In carrying out my invention I apply a metallic plate to the side of the window
casement upon which plate a catch-is so suspended that as soon as the lower sash
is at the bottom-of-the-casement, it falls forward automatically, and so grasps the
top rail of the sash as to effectually prevent the same being opened-whilst-to-open-
the sash again-it-is-only-necessary-to-throw back the said catch.
To prevent the rattling of such sash I arrange a clamping screw to pass through
a projection from-the-same-plate,-and-which-screw_is_capable_by_means of its
milled head of being screwed up tight against the sash whilst its other end is fitted
with a loose washer, so as not to damage the sash or paint.
In some case I construct the clamping screw arrangement separately from the
sash fastenor and thus the rattling is not only prevented but the sash is securely
fastened in the closed or any other desired position.
DESCRIPTION OF THE DRAWING,
Fig 1 shows the improved sash fastener in its closed position with the window
securely fastened,
Fig. 2. is the same view with the fastener released and the sash partially raised.
Fig 3 illustrates the clamping scrow only as applied to a window,
In all the views A is a metallic plate applied to the side of the window
casement-upon which plate a catch B is so suspended that as soon as the lower
sash C is at the bottom of the casement it falls forward automatically and so grasps
the top rail of the sash as to effectually prevent the same being opened--whilst
to open the sash again it is only necessary to throw back the said catch as seen in
Fig. 2. A metallic plate X is attached to the sash C to prevent the catch B
cutting or fraying the sash and to render the fastening more secure. To prevent
the rattling of such sash I arrange a clamping screw D to pass through a
projection E from the same plate A and which screw is capable by means of its
milled head F of being screwed up tight against the sash C whilst its other end is
fitted with a loose washer G so as not to damage the sash or paint.
In some cases I construct the clamping screw arrangement separately from the
sash fastener as seen in Fig. 3. and thus the rattling is not only prevented but the
sash is securely fastened in the closed or any other desired position. I apply one of
"
1.

page_text: these fasteners to each side of the sash for which purpose they are made right
and left handed.
Having thus particularly described and ascertained the nature of my invention
I declare that what I claim is
The improved sash fastener substantially as described and illustrated on the
accompanying drawing.