Improvements in Sash Fasteners.
Year: 1893

page_text: Date of Application, 17th July, 1893
Complete Specification Left, 17th Apr., 1894-Accepted, 19th May, 1894
PROVISIONAL SPECIFICATION.
Improvements in Sash Fasteners.
We, FRED COBB of 50 Toxteth Street, Droylsden, Manchester, Fitter and
ALLEN OLDHAM of 10 Poplar Mount, Reddish Lane, Gorton, Manchester, Joiner
do hereby declare the nature of our said invention to be as follows:-
Our invention has for its object to simplify the fixing of sash fasteners and to so
construct the fasteners that it shall not be possible to draw back the locking lever
as heretofore by means of a knife or other sharp instrument, from the outside.
In accordance with our invention we only employ that part of an ordinary fastener
which carries the locking lever and which is usually screwed to the upper sash of
a window, the other part, which is usually screwed to the lower sash, being
dispensed with. To the said locking-lever part we hinge a small plate which is of
such a size that it will extend well onto the lower sash of the window and so
ie across and cover up the opening between the two sashes which comes underneath
the locking lever and the extent of its radial traverse. Said plate forms the
working plate of the locking lever and is formed with a raised edge extending
upwards which is inclined or curved and up or against which the locking lever
runs in locking the sashes and said plate is also formed with a pin or stud near the
hinge portion which extends upwards and comes within the "sweep" of the locking
lever, hence when such locking lever is pushed back it comes against such pin or
stud and causes it to turn down and simultaneously causes the plate to turn up at
right-angle to the sash top and so uncover the opening between the sashes and be
out of the way when it is desired to open the window.
The fixed part of the fastener being fitted with the usual spring for locking the
lever in its closed and open positions the plate aforesaid is held up by such spring
when the lever is pushed back.
It will be readily seen that when the locking lever is drawn out and the sashes
are fastened the opening beneath the locking lever will be covered up and any
sharp instrument inserted between the sashes will come against the plate and so be
effectually prevented from touching the locking lever, whilst when the locking
lever is pushed back it will cause the plate to fold upwards and so unfasten the
window.
It will be observed that by our improvements we save the necessity of two
separate fittings, one for each sash, and consequently avoid the trouble of fixing
the two parts of the fastener and the difficulty of making them agree.
Dated this 15th day of July 1893.
JOHN G. WILSON & Co.,
Agents for the Applicants.
COMPLETE STEUIFICATION.
Improvements in Sash Fasteners.
We, FRED COBB of 50 Toxteth Street, Droylsden, Manchester, Fitter and
ALLEN OLDHAM of 10 Poplar Mount, Reddish Lane, Gorton, Manchester Joiner,
do hereby declare the nature of our said invention and in what manner the same is to
be performed to be particularly described and ascertained in and by the following
statement:—
Our invention relates to window sash fasteners and has for its object to so

page_text: construct these fasteners that the locking lever cannot be pushed back by a sharp
instrument put through the space between the two sashes from the outside.
To accomplish this we construct the fastener very similar to an ordinary
fastener as regards the kind and number of parts, but we hinge the parts together
the locking lever part being fixed as usual to the upper sash of the window whilst
the other part instead of being fixed to the lower sash of the window is hinged
to the said fixed part. This hinged portion can be turned up at right angles or turned
down to a horizontal position and when the fastener is applied to a window turns
down onto the top of the lower sash and covers up the opening between.
The
locking lever being drawn across this plate the windows are secured and the lever
cannot be tampered with from outside.
"
To effect the turning up and turning down of this plate we utilise the movement
of the locking lever by forming a pin or stud in the path of its "sweep.
on the
hinged plate and near the hinged edge. When the lever is pulled out it pushes
the plate down by ordinary contact, but when the lever is "shot" back to open the
window it catches the pin aforesaid which is standing vertical and causes it to
assume a horizontal position, simultaneously causing the plate to tilt up and assume
a vertical position.
And in order that our said invention shall be the more readily understood and
carried into practical effect we have hereunto annexed a sheet of drawings and will
now proceed to describe the same with the assistance of the various figures and
letters of reference marked thereon.
Fig. 1 is a front view, Fig. 2 a plan (partly in section) and Fig. 3 is an end view
of our improved sash fastener with the locking lever drawn out.
Fig. 4 is an end view of the sash fastener with the locking lever pushed in.
In accordance with our invention (A) is the fixed part of our improved fastener
carrying the locking lever (B) and spring (B¹). To this part the plate (C) is
hinged as illustrated capable of turning up at right angles as shewn in Fig. 4 or of
lying horizontal as shewn in Fig. 1.
The front edge of the plate (C) is formed with a curved incline to allow for the
movement of the locking lever when drawn out and to allow the locking lever to
push the plate down to the horizontal position. This same incline also serves to
wedge the lever and push the lower sash down.
Near the narrower end of the plate the pin (D) is situated which is formed at
right angles with the plate so that as the lever (B) operates upon it and it is
pushed over, the plate (C) rises and assumes a vertical position, the lever when in
its housing keeping the pin in its horizontal position.
In this way the plate is raised and lowered and when lowered the lever (B) is
effectually protected from being pulled back or tampered with from without by the
plate beneath.
Having thus 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.
The combination and arrangement of parts constituting our improved sash
fastener comprising the part (A), lever (B) spring (B1), hinged plate (C), stud (D)
all mounted and operating substantially as herein before described and illustrated
on the accompanying drawings.
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