An Improved Sash Fastener.
Year: 1891

page_text: Date of Application, 22nd Sept., 1891
Complete Specification Left, 12th May, 1892-Accepted, 2nd July, 1892
PROVISIONAL SPECIFICATION.
An Improved Sash Fastener.
I JOSEPH HARPER KEARTON of 38 Salcott Road Wandsworth Common in the
County of Surrey Vocalist do hereby declare the nature of this invention to be as
follows:-
:-
The object of this invention is to provide a means whereby a window or other
sash is automatically secured against opening from the outside by the act of closing
the same.
Now according to this invention I secure to the lower sash a plate having a
projecting tooth thereon and to the upper sash I secure a plate or frame having
pivotted thereto an oscillating catch.
When the window is being closed the tooth pushes the catch out of the way and
as soon as the sashes are completely closed the catch automatically fastens the
same the centre of gravity of the said catch being below the point of suspension
thereof.
To enable the window to be opened the catch is moved to allow the tooth to
clear the same and permit of the sashes being raised or lowered.
Dated this Twenty-second day of September 1891.
ERNEST SALAMAN,
Per T. E. H.,
61 & 62, Chancery Lane, London, Agent for Applicant
COMPLETE SPECIFICATION.
An Improved Sash Fastener.
1, JOSEPH HARPER KEARTON of 38 Salcott Road, Wandsworth Common in
the County of Surrey, Vocalist, 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 :-
The object of this invention is to provide a means whereby a window or other
similar sash is automatically secured against being opened from the outside by the
act of closing the same.
Now according to this invention I secure to the lower sash a plate having a
projecting tooth thereon and to the upper sash I secure a plate or frame having
pivoted thereto an oscillating catch.
When the window is being closed the tooth pushes the catch out of the way
and as soon as the sashes are completely closed the catch automatically fastens
the same the centre of gravity of the said catch being below the point of suspension
thereof.
To enable the window to be opened the catch is moved to allow the tooth to
clear the same and permit of the sashes being raised or lowered.
And in order that my said invention may be the better understood I will proceed
to explain the same with reference to the accompanying sheet of drawings in
which,
Fig. 1 represents the front view of a sash fastener constructed according to this
invention attached to a window sash.
Fig. 2 is section of the same.
Fig. 3 is side view of catch plate in position for cleaning the window.

page_text: Fig. 6 is plan of same.
The same letters denote the same parts in all the figures.
a is the catch plate which is secured to the lower sash, 6 the projecting tooth,
this plate is preferably made in two pieces hinged together as shewn to allow of the
sashes being moved past each other for cleaning and other purposes the upper
portion a¹ of the plate is prevented from rising when in use by the screw c which is
removed when the plate a¹ is required to be raised.
To prevent the window from being unfastened from the outside the plate a' over-
laps the bottom sash as shewn in Fig. 2. The oscillating catch d is pivoted at e
to the plate which plate is secured to the upper sash as shewn at Fig. 2 the
catch d being so weighted as to cause it normally to assume the position shewn at
Figures 2 and its movement being limited by the stop g. By rotating the
catch d in the direction of the arrow the window is unfastened and the sashes may
be raised or lowered.
I am aware that such fasteners have been previously made with oscillating
catches, I do not therefore claim an oscillating catch as my invention but having
now particularly described and ascertained the nature of my said invention
declare that what I claim is.
In a sash fastener an oscillating catch pivoted to a suitable plate or frame in
combination with a catch plate preferably made in two portions hinged together
and having a projecting tooth thereon substantially as described and shewn.
Deted this Oth dow of Mo 1900
ERNEST SALAMAN,
Patent Agent to the British & Foreign Patents & Trade Marks Society,
61 & 62, Chancery Lane, London, Agent for Applicant.