A New or Improved Fastener for Windows.
Year: 1897

page_text: A
Date of Application, 25th May, 1897
1007
A
4000
PROVIDIUNAL SPECIFICATION.
A New or Improved Fastener for Windows.
I, GEORGE HENDERSON HOPKINS of Rossendale, Clytha Square, Newport, Mon-
mouth, Engineer, do hereby declare the nature of this invention to be as follows.
This invention relates to an improved fastener for use with sashes, and has for
its object to provide an article of this kind which will allow the sashes to be fixed
in any desired position open or closed, without danger of their being further opened
from the outside.
In carrying out my invention I propose to fit to the meeting rail of the lower
sash a shall plate, this plate being placed at the side immediately behind the side
bar of the other sash. This plate is formed with two lugs between which a catch
is pivoted. This catch consists of an arm provided with a small finger piece or
handle at the side and formed with a nose or projection at its upper end.
On the vertical bar of the other sash a plate is fixed formed with a number of
rectangular holes at suitable intervals apart. Behind these holes small recesses
are formed in the bar and the arrangement is such that the nose of the catch can
enter anyone of these recesses. The catch is provided with a small spring which is
adapted to hold it in either locking or open position. When the catch is in locking
position the sashes cannot be further opened, the catch having to be pulled back for
this purpose. The sashes can however be closed without interfering with the catch.
This fastener may be used alone or in combination with a suitable central fasten-
ing, the catch being then only used to secure the sashes in an open position.
1007
GEO. H. RAYNER,
37, Chancery Lane. London. Agent for the Applicant.
I, GEORGE HENDERSON HOPKINS of Britannia Iron Works late of Rossendale,
Clytha Square, Newport, Monmouth, Engineer, 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:
T
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page_text: its object to provide an article of this kind which will allow the sashes to be fixed
in any desired position open or closed, without danger of their being further opened
from the outside.
In carrying out my invention I propose to fit to the meeting rail of the lower sash
a small plate this plate being placed at the side immediately behind the side bar
of the other sash. This plate is formed with two lugs between which a catch is
pivoted. This catch consists of an arm provided with a small finger piece or
handle at the side and formed with a nose or projection at its upper end.
On the vertical bar of the other sash a plate is fixed formed with a number of
rectangular holes at suitable intervals apart. Behind these holes small recesses
are formed in the bar and the arrangement is such that the nose of the catch can
enter anyone of these recesses. The catch is provided with a small spring which
is adapted to hold it in either locking or open position. When the catch is in
locking position the sashes cannot be further opened, the catch having to be pulled
back for this purpose. The sashes can however be closed without interfering with
the catch.
In order that the invention may be more clearly understood, reference is had to
the accompanying drawings, in which Fig. 1 is a front elevation of my improved
fastener, Fig. 2. is a side view of the same with the sashes in section, and Fig. 3
is a similar view showing the fastener open.
To the face of the side bar A of the upper sash the plate B is screwed. This
plate is formed with the holes or slots at regular intervals and the side bar is
formed with the wedge shaped recesses a placed immediately behind the holes.
The sloping top of the recess is preferably arranged at such an angle as will cause
the nose of the locking arm to enter or tend to enter further into the recess when
the outer sash is forced downwards. To the lower sash A¹ and immediately
opposite the plate B the base plate C is screwed. This base plate is formed withi
the lugs e between which the locking arm or catch D is pivoted. This locking arm
is provided with the nose d adapted to enter the recesses and to engage in one of
them when the arm is in its upper or locking position. The arm is provided with
the handle at its upper end by which it can be manipulated and at the lower
end small lugs or projections are provided carrying the small roller or wheel d
This bears upon the upper face of the curved spring E which is screwed on the base
plate and extends between the lugs c.
As shown in Fig. 2 the arm is in its locking position, and the roller or projec-
tion bears upon the recessed part of the spring E, which thus serves to keep it
in this position. When the catch or arm is withdrawn the roller is moved towards
the end of the spring, which bears against it and keeps the catch open as shown in
Fig. 3. Owing to the formation of the nose of the catch and the recess, the sashes
can be easily closed without withdrawing the catch, but cannot be pushed further
open as the nose of the catch will engage with the upper side of the recess into
which it projects, and will prevent any further motion.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what I
claim is: :-
(1) In an improved sash fastener, the combination with a plate fixed on the face
of the side rail of the upper sash, and holes or recesses in the said plate and rail,
of a pivoted catch or arm fitted to the lower sash, a nose on the said arm adapted
to enter into any one of the recesses, and a spring keeping it in position, substan-
tially as described and for the purposes specified.
(2) In an improved sash fastener, the combination with a plate fixed on the face
of the side rail of the upper sash, holes in the said plate and a recess in the side rail
behind the said holes, of a plate fixed on the other sash, lugs on the said plate, an
arm or catch pivoted to the lugs, a mose on the said arm adapted to engage in the
recess, and a spring bearing against the lower end of the arm holding it in closed

page_text: or open position, substantially as described and shown in the accompanying
drawings and for the purposes specified.
Dated this 23rd day of November 1897
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.