Improvements in Sash Fasteners.
Year: 1894

page_text: Date of Application, 3rd Sept., 1894
Complete Specification Left, 22nd Dec., 1894-Accepted, 2nd Feb., 1895
PROVISIONAL SPECIFICATION.
Improvements in Sash Fasteners.
I, JAMES HARRIS of 42, Burton Crescent, London, W.C., Screw Maker, do
hereby declare the nature of this invention to be as follows :-
This invention relates to an improved construction of sash fastener, and is
intended to provide an arrangement which will lock the sashes securely, preventing
them being opened by any instrument inserted from the outside.
On the meeting rail of the upper sash I screw a plate having a vertical extension
forming a catch. This is provided with a slot on its inner side, and a lip or flange
at top to retain the locking arm fitted on the other meeting rail. This latter
meeting rail is recessed and a plate with locking mechanism is fixed on it, the
plate being arranged to come flush with the surface of the rail. On the plate is
fitted a lever or arm which can be turned so as to extend across the first mentioned
rail when the sashes are to be fastened, or turned back to unlock the sashes. The
arm is formed with a flange at the end, which when turned into locking position
lies in the recess in the extension mentioned above. One end of this extension is
closed, preventing the arm being turned too far.
The locking arrangement connected with the arm consists of a flat spring on the
under side of the plate with a pin which can take into either of two holes in the
boss of the arm.
This pin locks the said arm in either open or closed position
preventing it being turned until the spring has been pressed back. This is done
by means of a small finger piece projecting through the top of the plate, which
when pressed down will push back the spring and release the arm.
The spring
and consequently the arm can be locked by simply sliding a plate operated by a
key of ordinary or other construction, the plate when in locking position passing
behind the spring and preventing it moving. The locking arm is thus held in
position until the plate has been withdrawn by means of the key. Thus on
removing the key the window can be left in safety, as the sashes cannot be
unfastened until the plate has been withdrawn from the spring.
Dated this 3rd day of September 1894.
GEO. H. RAYNER,
37, Chancery Lane, London, W.C., Agent for the Applicant.
I JAMES HARRIS of 42, Burton Crescent, London, W.C. Screw Maker, do
hereby declare the nature of this invention, and in what manner the same is to be
5 performed, to be particularly described and ascertained in and by the following
statement:
This invention relates to an improved construction of sash fastener, and is
intended to provide an arrangement which will lock the sashes securely, preventing
them being opened by an instrument inserted from the outside.

page_text: On the meeting rail of the upper sash, I screw a plate having a vertical extension,
forming a catch. This is provided with a slot on its inner side, and a lip or flange
at top to retain the locking arm fitted on the other meeting rail. This latter
meeting rail is recessed and a plate with locking mechanism is fixed on it, the plate
being arranged to come flush with the surface of the rail. On the plate is fitted a
lever or arm which can be turned so as to extend across the first mentioned rail
when the sashes are to be fastened, or turned back to unlock the sashes. The arm
is formed with a flange or projection at the end, which when turned into locking
One end of this
position lies in the recess in the extension mentioned above.
extension is closed, preventing the arm being turned too far.
The locking arrangement connected with the arm consists of a flat spring on the
under side of the plate, with a pin which can take into either of two holes in the
boss of the arm. This pin locks the said arm in either open or closed position,
preventing it being turned until the spring has been pressed back. This is done
by means of a small finger piece, projecting through the top of the plate, which,
when pressed down, will push back the spring and release the arm. The spring
and consequently the arm can be locked by simply sliding a plate, operated by a
key of ordinary or other construction, the plate when in locking position passing
behind the spring and preventing it moving. The locking arm is thus held in
position until the plate has been withdrawn by means of the key. Thus on
removing the key the window can he left in safety, as the sashes cannot be
unfastened until the plate has been withdrawn from the spring.
In order that the invention may be more clearly understood, reference is had to
the accompanying sheet of drawings, in which Fig. 1 is a plan of the device,
Fig. 2 is a front elevation, Fig. 3 a side elevation partly in section and Fig. 4 is an
underside view of the fastener.
To the lower sash bar A a metal plate a is fitted by means of screws as shown,
or by a screw bolt passing through the sash and fitted from the lower side. The
latter arrangement is especially convenient when the catch is used for, show cases
or like purposes.
On the top of the plate a the arm bis pivoted centrally at c being turned by a
suitable handle at one end into locking or open position. On the extremity of the
arm ba vertical projecting portion is formed, which engages with the vertical
extension or hood d on the plate d as shown clearly in Fig. 3, the plate d. being
secured to the upper sash bar B. The arm b is locked in position by means of the
strong flat spring e, fixed on the under-side of the plate a. This spring is provided
with the pin e at its end, which passes through the plate a, and into either of the
holes formed in the under-side of the arm b at the central portion or boss. Two
holes are formed in such a position that the pin e¹ is adapted to enter one of
them when the arm is turned into locking position, and enter the other when the
arm is turned to one side. The stud is fitted to the upper side of this spring,
and passes through the plate a, being provided with the thumb piece e adapted to
release the arm b on being pressed down.
f¹ of which when
prevent its being
The front edge f*
The lock is secured to the under-side of the plate a the bolt
thrown out by the key will pass underneath the spring, and
depressed by the finger piece until the bolt has been withdrawn.
of the bolt fi is bevelled to allow, of its passing the edge of the spring more
easily.
The enlargement on the arm bis formed to cover the joint between the
upper and lower ɛash bars, giving greater strength and thickness to that part.
1
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the game is to be performed, I declare that what I
claim is :-
(1.) In a sash fastener the combination with the centrally pivoted, arm on the
lower sash bar, a projection on the extremity of the said arm, and a hood on, the
other sash bar, engaging with the arm, of. a. flat spring, with a pin taking into

page_text: the hole on the under-side of the pivoted arm, and a finger piece on the spring,
by which it can be depressed, substantially as and for the purposes specified.
(2.) In a sash fastener, the combination with the centrally pivoted arm on the
lower sash bar, the plate to which the arm is pivoted, and a hood on the other sash
bar, engaging with the end of the said arm, of a flat spring fitted on the under-side
of the plate, with a pin taking into holes in the under-side of the arm, the fiuger
piece on the said spring, and a lock having a bolt which can pass under the spring
to prevent its being depressed, substantially as described, and for the purposes
specified.
(3.) The improved sash fastener with centrally pivoted arm; engaging hood and
locking device, constructed and operating substantially as described and shown in
the accompanying drawings, and for the purposes specified.
Dated this 21st day of December 1894.
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.