Year: 1897

page_text: I, ROSALIE CAROLINE CHICHESTER, of Arlington Court, Barnstaple, do hereby
declare the nature of this invention to be as follows:-
This invention relates to an improved fastener for window sashes, and pro-
vides a simple device which will lock the sashes together automatically without
danger of being opened from the outside.
I propose to forin the face of the meeting rail belonging to the upper sash with
a shallow recess and to screw to the rail an angle plate extending into the said
recess. To the upper corner of this angle plate a locking plate is hinged extending
vertically, but forced away from the base plate by a spring fitted to the latter and
bearing at the back of the hinged plate. The face of the other meeting rail is also re-
cessed so as to form a ledge at the lowerside, and when the sashes come together
the hinged plate will be pushed back against the spring until its lower end comes
over the ledge when the plate will spring forward and engage with the said ledge.
The second meeting rail is also formed with a hole extending transversely
through it, and within this hole a metal casing is fitted provided with a flange
and screwed to the rail. This casing serves to carry a bolt and to the front end
of the bolt a roller is fitted carried in bearings formed by lugs or projections. The
other end of the bolt is enlarged or formed with a suitable finger piece or knob,
and around the stem a spring is placed. This spring causes the bolt to be with-
drawn within the case causing the knob however to project further from the
back of the rail.
To unfasten the sashes the knob is pressed in causing the roller to press against
the hinged plate. The latter is thus pushed back past the ledge formed by the
meeting rail of the lower sash, and the sash can then be opened, the roller sliding
over the plate and reducing the friction.
T101111007
I, ROSALIE CAROLINE CHICHESTER, of Arlington Court, Barnstaple, do hereby
declare the nature of this invention, and in what manner the same is to be per-
formed, to be particularly described, and ascertained in and by the following
statement:-
This invention relates to an improved fastener for window sashes, and pro-

page_text: vides a simple device which will lock the sashes together automatically without
danger of being opened from the outside.
I propose to form the face of the meeting rail belonging to the upper sash with.
a shallow recess and to screw to the rail an angle plate extending into the said
recess. To the upper corner of this angle plate a locking plate is hinged extending
vertically, but forced away from the base plate by a spring fitted to the latter and
bearing at the back of the hinged plate. The face of the other meeting rail is also re-
cessed so as to form a ledge at the lower side, and when the sashes come together;
the hinged plate will be pushed back against the spring until its lower end comes
over the ledge when the plate will spring forward and engage with the said ledge.
The second meeting rail is also formed with a hole extending transversely
through it, and within this hole a metal casing is fitted provided with a flange
and screwed to the rail. This casing serves to carry a bolt and the front end ta
press against the locking plate while the other end of the bolt is enlarged on
formed with a suitable finger piece or knob, and around the stem a spring is
placed. This spring causes the bolt to be withdrawn within the case and the knob
to project further from the back of the rail..
To unfasten the sashes the knob is pressed in causing the bolt to press against
the hinged plate. The latter is thus pushed back past the ledge formed by the
meeting rail of the lower sash, and the sash can then be opened, the bolt sliding
over the plate.
Referring to the accompanying sheet of illustrative drawings Fig. 1 is a sec-
tion of a fastener constructed according to this invention and Fig. 2 is an elevation
of the same.
The meeting rail a of the upper sash is slightly recessed and an angle plate b
is secured in the said recess. To this plate 6 a locking plate c is hinged at d so
as to hang vertically and is forced outwards by means of a spring e.
The face of
the other meeting rail a¹ is also recessed so as to form a ledge f at the lower side
and when the meeting rails a, a¹ come together the locking plate c will be pushed
back against the spring e until its lower end comes over the ledge f when the
locking plate c will spring forward so as to engage with the said ledge and pre-
vent any movement of the window sashes.
In order to disengage the locking plate e from the ledge f so as to allow of the
movement of the sashes a, a relative to one another, a metal casing g is fitted into
the meeting rail a¹ and within this casing a bolt h is arranged having a knob i at one
end and at the other end being adapted when drawn within the casing to press
against the locking plate c so as to force it out of engagement with the ledge f.
A spring k is arranged round the bolt h so that normally the bolt his forced out-
wards away from the said locking plate, and the normal condition of the fastener
is to secure the sashes together, the knob being pressed inwards when required
to open the window.
As it is sometimes necessary to keep the bolt h in its pressed in position, a groove
is formed at the head of said bolt and a sliding piece m having an operating
knob and sliding in guides o is adapted to engage the said groove / and retain
the bolt in its withdrawn position.
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) An improved fastener for windows consisting of a hinged locking plate ar-
ranged upon the meeting rail of the upper sash a ledge formed in the meeting
rail of the lower sash with which the said locking plate engages and means for
pressing the locking plate out of engagement with the said ledge to allow of the
opening of the window substantially as described.
(2) An improved fastener for windows consisting of a hinged locking plate ar-
ranged upon the meeting rail of the upper sash, a ledge formed in the meeting
rail of the lower sash with which the said locking plate engages and a spring bolt

page_text: pressing the locking plate out of engagement with the said ledge to allow of the
opening of the window the said spring bolt being provided with a suitable re-
taining device substantially as described.
(3) An improved fastener for windows consisting of a hinged locking plate c,
a ledge f with which it engages, a spring bolt for pressing the locking plate c
out of engagement with the ledge f and the sliding piece m for retaining the said
spring bolt in its operative position to allow of the opening of the window sub-
stantially as described.
(4) An improved fastener for windows substantially as described with reference
to the accompanying drawings.
101
הד 6
1000
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.