A New or Improved Window Sash Fastener.
Year: 1892

page_text: Date of Application, 22nd July, 1892
Complete Specification Left. 24th Apr., 1893-Accepted, 27th May,
1893
PROVISIONAL SPECIFICATION.
A New or Improved Window Sash Fastener.
We, JOSEPH CLARK and THOMAS CLARK, Raglan Foundry, Leeds Road,
Bradford, in the County of York, Engineers, do hereby declare the nature of this
invention to be as follows:-
This invention relates to a new or improved sash fastener for fastening vertically
sliding window sashes and its object is to provide a sash fastener of simple
construction adapted to automatically close when the window is shut.
For this purpose we preferably employ suitable attachment plates adapted to be
secured close to the bottom of the sides of the top window sash and we pivot a
pendent arm or detent to each of said plates. These pendent arms are so formed
that when allowed to drop or swing to their normal position they lie partly across
or project over the top rail of the bottom sash and thus prevent either of the sashes
being opened. But they may be readily turned or swung aside out of the path of
the lower sash leaving both the sashes free to be opened.
Instead of securing the fasteners close to the bottom of the top sash they may be
secured a certain height up thereby leaving the sash free to be opened a suitable
distance for ordinary ventilation.
One fastener only may be employed and by modifying the attachment plate it
may be adapted to be secured in the usual position approximately in the middle of
the lower rail of the top sash.
at day of July 1892.
-TI IN T
DRACUT & NOWELL,
Bradford, Agents.
COMPLETE SPECIFICATION.
A New or Improved Window Sash Fastener.
We, JOSEPH CLARK and THOMAS CLARK, Raglan Foundry, Leeds Road,
Bradford, in the County of York, Engineers, do hereby declare the nature of this
nvention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
This invention relates to a new or improved sash fastener for fastening vertically
sliding window sashes and its object is to provide a sash fastener of simple
construction adapted to automatically close when the window is shut.
For this purpose we preferably employ suitable attachment plates adapted to be
secured close to the bottom of the sides of the top window sash and we pivot a
pendent arm or detent to each of said plates. These pendent arms are so formed
that when allowed to drop or swing to their normal position they lie partly across
or project over the top rail of the bottom sash and thus prevent either of the sashes
being opened. But they are readily turned or swung aside out of the path of the
lower sash leaving both the sashes free to be opened.
Instead of securing the fasteners close to the bottom of the top sash they may be
secured a certain height up thereby leaving the sash free to be opened a suitable
distance for ordinary ventilation.
Reference is to be had to the accompanying sheet of drawings forming a part of
this Specification in which similar letters of reference indicate corresponding parts
in each of the figures.
Figure 1, represents a cross section of the meeting rails of a pair of sashes with
our improved fastener secured to the side of the upper sasi.

page_text: Figure 2, is a front view of the same.
Figure 3, is a similar view to Figure 1 with the sashes partly open.
The attachment plate A is secured by the screws B to the side C of the upper
sash and the pendent arm or detent E hangs loosely from the pin or rivet D rigidly
secured to the plate A. The pendent arm E is so formed that it normally lies
partly across the top of the lower sash F as clearly shewn in Figure 1 and thus
prevent the sashes being opened but said arm may be readily moved to the position
shewn in Figure 3 leaving the sashes free to be opened. A similar fastener may
be fitted to the other side of the upper sash.
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:
A sash fastener consisting essentially of a pendent arm or detent adapted to be
loosely secured to the side of the upper sash and normally lie partly across the top
of the lower sash, substantially as herein shown and described and illustrated in the
accompanying drawing.
Dated this 21st day of Anril 1892
DRACUP & NOWELL,
Bradford, Agents.