IMPROVEMENTS IN WINDOW FASTENERS
Year: 1884

page_text: I, EDWARD HUNTLY HARLING of 13 Brown Street Bryanstone Square
Marylebone in the County of Middlesex Scientific Instrument Maker do hereby
declare the nature of my Invention for IMPROVEMENTS IN WINDOW FASTENERS
to be as follows :—
This Invention relates to improvements in window fasteners hereinafter
described and has for its object a simple yet efficient fastener which cannot be
opened from the outside and also prevents the jar and chatter of the window
sashes.
For carrying out my Invention I use a circle or portion of circle attached to the
arm of the ordinary window fastener with teeth or notches and a spring on which I
rivet or stamp out of the said spring a ratchet or catch or pawl corresponding with
the teeth or notches in the aforesaid circle or portion of circle, this serves to retain
the arm in whatever position it may be placed over the window until released by
the pressure of the finger on the spring when it may be returned to its original
position. The circle or portion of circle having two or more teeth or notches as may
be necassary permits of the arm being held in two or more angles or positions over
the window, by this means the window being drawn together so as not to allow of
a knife or other intrument being placed between the sashes and preventing all jar
and chatter of the window, sashes but should the window not be drawn together
the aforesaid teeth and rachet prevent the arm from being forced back by any
possible means.
Dated this Fifth day of January 1001

page_text: I, EDWARD HUNTLY HARLING of 13 Brown Street Bryanstone Square
Marylebone in the County of Middlesex Scientific Instrument Maker do hereby
declare the nature of my Invention for IMPROVEMENTS IN WINDOW FASTENERS
to be as follows:-
This Invention relates to improvements in window fasteners hereinafter
described and has for its object a simple yet efficient fastener which cannot be
opened from the outside and also prevents the jar and chatter of the window
sashes.
For carrying out my Invention I use a circle or portion of a circle attached to
the arm of the ordinary window fastener with teeth or notches and a spring on
which I rivet, or stamp out of the said spring a ratchet or catch or pawl
corresponding with the teeth or notches in the aforesaid circle or portion of a circle,
this serves to retain the arın in whatever position it may be placed over the
window until released by the pressure of the finger on the spring when it may be
returned to its original position, the circle or portion of circle having two or more
teeth or notches as may be required permits of the arm being held in two or more
angles or positions over the window, by this means the window being drawn
together so as not to allow of a knife or other instrument being placed between
the sashes and preventing all jar and chatter of the window sashes, but should the
window not be drawn together the aforesaid teeth and ratchet prevent the arm
from being forced back by any means.
In order that my Invention may be fully understood I will proceed to describe
the same by the accompanying Drawings in which Figs. and 2 are plans of my
fastener with the spring and catch B combined Figs. 3 and 4 are plans of my
fastener with the spring C and catch B seperate, Figs. 1 & 3 show the fastener held
when at right angles Figs. 2 & 4 show the fastener when only partially drawn over
but still held by the catch C.
In the sash fastener shewn in Figs. to 4 it will be evident that whatever
position the arm E may take over the window sashes it will be held in position by
catch B until released by the pressure of the finger on A in Figs. 1, 2, 3 and 4
similar letters refer to the same parts.
Having thus described my said Invention and the manner of performing the
same I would have it understood that what I claim is
Firstly. The construction and application to sash fasteners of a circle or portion
of circle shewn at D in Figs. 1 to 4 with teeth or notches on the arm of the
ordinary sash fastener.
Secondly. A spring on which I rivet or stamp out of the said spring a ratchet or
catch as shewn at B Figs. 1 and 2 corresponding with the teeth or notches in the
aforesaid circle or portion of circle, or I use an independent catch kept in gear by
pressure of a spring as shewn in Figs. 3 and 4.
Dated this 11th day of July 1884.