AN IMPROVED, SAFETY, SASH FASTENING
Year: 1884

page_text: I, FREDERICK ROBERT WILDEGOSE, of 20, Cambridge Place, Paddington, London,
Middlesex, Builder & Decorator, do hereby declare the nature of my invention for
AN IMPROVED, SAFETY, SASH FASTENING, to be as follows:-
Whereas sash fastenings as at present constructed can be easily opened or shut
by pushing the knob on the end of the tongue with the finger or thumb, my
Invention consists of a simple and efficient method of fixing the tongue when
pushed out, in which position it fastens the upper and lower sashes together. To
do this, instead of fixing the shank of the knob to the tongue of the fastenor,
I make it loose in the boss, at the end of tongue, which on being pushed out drops
and projects below the tongue; On the catch plate of the fastener I make a hook
or catch which receives the lower end of the shank of knob, and render's it
impossible to push the tongue back and so open the sash, untill the knob has again
been raised. This application is analogus to Patent granted to present applicant
Janry. 8th/84 Nº 945.

page_text: COMPLETE SPECIFICATION.
I FREDERICK ROBERT WILDEGOSE; of 20 Cambridge Place, Paddington London,
Middlesex, Builder & Decorator, do hereby declare the nature of my invention for
AN IMPROVED SAFETY SASH FASTENING, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
My Invention consists of a method of fixing the tongue; of the sash fastener
when pushed out so as to prevent the possibility of opening the sash from the out
side, To do this instead of fixing the shank of knob to the tongue of the fastener,
make it loose in the boss at the end of tongue which on being pushed out, drop's
and projects below the tongue catching the hook formed on catch plate, which
render's it impossible to push back the fastener and open the sash, untill the knob
has been again raised, The manner in which I carry my Invention out is described
by refference to the accompanying drawing, On the end of tongue A there is
a boss B which may be larger than the usual bosses and I form a hole in it through
which the shank of knob C passes, by raising knob D also raises shank O which is
attached, thus the shank of knob C is moved up and down. The tongue A being
pushed out to secure the two parts' of sashes together The knob D drop's the
shank C projecting below tongue A, on plate E a catch or hook is formed marked G
It will now be seen that if the tongue A has been pushed out the shank C drop's
and is caught by the catch a thus being self fastening, it will now be impossible
to force back the tongue and open the sash untill the knob has again been raised.
Plate E Fig. 4 is made specially wider than the plates now in use so as to join
close to plate F as shown on plan Fig. 3, On the drawing Fig. 1 shows the knob
raised up. Fig. 5 shows it down Fig. 2 being a section through boss B which
shows shank C being bossed at the end which prevent's it from coming out of the
boss B Fig. 3 & 4 aro plan's of of the fastening.
Having thus described and assertained the nature of my Invention and in
what manner the same is to be performed I declare that what I claim is
The herein described method of securcing sashes when closed by mean's of the
shank of knob droping automatically in boss at the end of tongue on being
pushed out, substantially in the manner herein before described and illustrated in
accompanying Drawing and my Provisional Specification.
February 10th, 1885.