Year: 1888

page_text: 1, JOHN TRINICK of 16 Fordingley Road, St. Peter's Park, in the County of Middlesex,
Builder's Manager, 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 sash fastener by which both sashes may
be locked, or one sash may be locked and the other free to open a certain distance,
or both may be free to open a certain distance for ventilation purposes, or free to open
fully for cleaning or other purposes, such fastener being so arranged that it cannot be
seen or opened from outside.
In carrying out my invention, the fastener is let into, and fixed to, the pulley stilo,
or the side frame of the window, in line with. the meeting bars of the two sashes, and
it consists of a plate by which it is screwed to the stile or the side frame. At the
back of this plate is a slide secured to the plate by straps, and formed with two lateral
catches or studs, which project through the plate, and into recesses in the side of the
sashes. The slide is connected with a suitable handle by which it may be pulled out
or pushed in as required, means being provided to secure it temporarily in either
position.
In the accompanying drawing:-
1
Fig. 1 is a view of the side of the sash or window frame, with the fastener in
position.
Fig. 2 is a view taken on the line xx, Fig. 3, showing the two sashes in side
view, with parts of the frame in section, and showing also a back view of the
fastener.
Fig. 3 is a sectional plan view on the line 1, 2, of Fig. 2; and
Fig. 4 is a partial front view of the sash or window frame.
A is the sash or window frame, B the pulley stile, C the outer bead, D the centre or
middle bead, and EE the sashes.
The fastener consists of a plate F formed with two slots, and to the back of which
a slide G is secured by means of the straps F' (see Fig. 2). The plate F is let
into the pulley stile B, and is secured thereto by screws, or in any other con-
venient manner. The slide G is formed on its front side with two studs or pins G³,

page_text: which project. through the slots in the plate F, and into notches and rebated
recesses H H formed to receive them in the front edge of the side of each sash E,
(see Fig. 3). When the studs or pins Gare in the notches H, the sashes are
shut down and locked, but when the pins Gare in the recesses H', the sashes.
are free to open a distance equal to the length of the recesses.
The front end of the slide G is connected by means of a pivotted arm or link G²
with a handle G³ of any suitable construction, but preferably a hinged or pendent
handle, as shewn in the drawing.
The arm G2 is notched on its under side (see Fig. 2) so as to catch on the edge of a
plate G, screwed to the front of the window frame, and through a slot in which it
works (see Fig. 4).
F is a spring fixed to the plate F, and bearing against a stud or pin on the slide.
The tendency of the spring is always to force back the bolt, and keep the studs or pins
in the notches or recesses. The notches and recesses may, if desired, be lined with
metal, and the beads C and D are recessed on the under side to permit of the entrance
or housing of the studs or pins G¹, when it is desired to unlock the sashes, and to
receive the spring F.
To unlock the sashes, the arm or link G2 must be raised by the handle, then
pulled forward, and then dropped so that it will be retained in the forward position by
its notch.
By this means the studs or pins Gare held under the beads.C and D clear of the
notches and recesses H H¹, and the sashes are free to be opened or closed fully. If,
while the studs are in this position, and when the sashes are closed, one of the sashes
be moved an inch or so, and then the bolt be released, that sash will be free to open
only the length of its recess II', while the other sash will be locked in the closed
position.
Instead of recesses H¹, I may employ a series of notches H, so that the sash may
be absolutely locked in any position; or I may use a rack with ratchet teeth.
I prefer to use the pivotted or hinged handle, as it does not present any projections
under which a tool may be inserted to prise out the fastener. The motion of raising
the handle and link before they can be pulled out, is also an element of safety. It
will, however, be evident that I may use a knob handle if, preferred, or I may use a
removable handle provided with a hook to take into an eye on the link G. The
pendent handle may also lie in a recess formed for it in, the side frame.
Having now particularly described & ascertained the nature of my said Inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
:
The improved safety sash fastener to be fitted to the sash frame in line with the
meeting bars of the sashes as herein shown and described, and consisting of a slide
having two studs or pins which project through a slotted plate in contact with which
the slide works, and into notches or rebated recesses formed in the sides of the
sashes, the said slide being connected with a handle by a notched link, which has to
be raised before the slide can be drawn forward against a spring, as and for the
purpose set forth.
1000