Improvements in Fastenings for Windows and other Articles.
Year: 1897

page_text: Date of Application, 23rd Feb., 1897
Complete Specification Left, 1st June, 1897-Accepted, 28th Aug., 1897
TRUVIDIONAL SPECIFICATION.
Improvements in Fastenings for Windows and other Articles.
I EDWIN PHILANDER PRINCE of Glenleigh, 760 Coventry Road Birmingham in the
County of Warwick, Commercial Manager do hereby declare the nature of this
invention to be as follows:-
I make the Latch Box of my Window or other fastening, oblong for preference,
having holes for screws to secure it to the back window, or other sash, this box is made
with a top plate, projecting about one third of the way over the bottom plate, to
which it is joined, by a back upright piece and having a still further projection at the
end of the top plate about half an inch wide extending over the whole width of the
bottom plate. This projection has a hole in the centre, and directly over a similar
hole in the bottom plate. At the back, or upright part and between the top and
bottom plate of the latch Box, I fix a spring for the purpose of keeping the latch bar
which I will now describe in its proper position when open or shut.
The latch bar I fix between the top and bottom plate of the latch box securing
same at the extreme corner with a pin or Rivet, or by any other means, so
that the bar may move quite freely backwards and forwards upon the pin or rivet, I
make the bar with a slot or V nick for preference, (or any other shape which may be
required) which is so constructed, and fixed to the latch bar in such a position, that
when the latch bar is drawn forward across the window, no amount of pressure exerted
between the opening of the sashes, with any kind of tool or implement, against the
V slot can force it back, as the moment any pressure is brought to bear against the slo
the implement or tool exerting such pressure, would instantly become wedged between
the bottom plate of the latch Box and the V slot thus stopping its further progress. At
the end of the latch bar, I fix a knob, or any other device for convenience in handling.
In front of this Knob I place a projecting lip or upright, also of special shape for
the purpose of drawing the window sashes together by means of the Hook receiver
the bottom plate of which I make oblong for preference with holes to secure it to sash
by screws or other fasteners.
Over this bottom plate I fix a Hook before mentioned which covers a portion of the
bottom plate and between which the latch bar passes when being fastened.
The half circular projecting upright on the bar engages with the upper plate or
Hook of the receiver drawing the two sashes together by means of the inclined plane,
finally dropping into the slightly recessed half circular groove at the top of the
Hook.

page_text: Improvements in Fastenings for Windows and other Articles.
I, EDWIN PHILANDER PRINCE Glenleigh 760 Coventry Road, Birmingham
Commercial 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 :-
I make the latch box of my window or other fastening oblong for preference having 5
holes for screws to secure it to the back window or other sash, this box is made with
a top plate projecting about one-third of the way over the bottom plate to which it
is joined by a back upright piece and having a still further projection at the end of
the top plate about half an inch wide extending over the whole width of the bottom
plate. This projection has a hole in the centre, and directly over a similar hole in the 1
bottom plate. At the back or upright part and between the top and bottom plate
of the latch box, I fix a spring for the purpose of keeping the latch bar which I will
now describe in its proper position when open or shut.
The latch bar I fix between the top and bottom plate of the latch box securing
same at the extreme corner with a pin or rivet, or by any other means so that the bar 1
may move quite freely backwards and forwards upon the pin or rivet, I make the bar
with a slot or V nick for preference, (or any other shape which may be required)
which is so constructed, and fixed to the latch bar in such a position, that when the
latch bar is drawn forward across the window, no amount of pressure exerted between
the opening of the sashes, with any kind of tool or implement, against the V slot can
force it back, at the moment any pressure is brought to bear against the slot the
implement or tool exerting such pressure would instantly become wedged between
the bottom plate of the latch box and the ✓ slot thus stopping its further
progress.
At the end of the latch bar I fix a knob or any other device for convenience in
handling. In front of this knob I place a projecting lip or upright, also of special
shape being curved for the purpose of drawing the window sashes together by
means of the hook receiver the bottom plate of which I make oblong for preference
with holes to secure it to sash by screws or other fastener. Over this bottom plate
I fix a hook before mentioned, which covers a portion of the bottom plate and between
which the latch har passes when being fastened. The half circular projecting upright
on the bar engages with the upper plate or hook of the receiver, drawing the two
sashes together by means of the inclined plane finally dropping into the slightly
recessed half circular groove at the top of the hook.
In order that my invention may be fully understood I will now refer to the
annexed drawings in which :-
Figure 1. is a plan view of my improved fastener in its open position.
Figure 2. plan view of my improved fastener in its closed position.
if
at is the bar pivoted at b to the plate c and having the nick d in same and carrying
the roller or wheel e which bears upon the spring f. The hook or plate g is shaped
as shown so as to tend to draw the two sashes together. This hook or plate g may
desired be recessed at the point for the reception of the projection i and is curved
to draw the two sashes together when the latch is locked owing to the relative position
of the pivot b and curved surface of the lip g. It will be seen that owing to the
pivot b upon which the bar a turns being close to the edge of the plate c and also the
shape of the groove or nick d that it will be almost impossible to force the bar in the
direction of the arrow 1 by means of a blade or knife, owing to a slight movement of
the bar causing the blade or knife to be jammed against the edge of the plate c
or sash.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is :-
1. The combined construction and arrangement of the various parts substantially
as described and illustrated.
2. In window fasteners of the class herein described, a latch bar pivoted as nearly
as possible to the point at which the two sashes meet and having a nick or recess so
shaped as to jam or catch a blade or knife upon a slight movement of the latch bar
for the purpose of preventing the latch bar being opened by a blade or knife inserted
between the sashes said latch bar engaging upon a plate or hook so shaped as to
draw the two sashes together when the fastener is in its closed or locked position said
plate or hook being provided with a recess or notch when required for the reception
of a projection upon the latch bar; a roller or wheel upon said latch bar for running
upon a controlling spring, for the purpose of reducing friction.
E. EATON,
Agent for Applicant.