Window Fastening.
Year: 1888

page_text: Date of Application, 23rd Oct., 1888
Complete Specification Left, 23rd July., 1889-Accepted, 21st Sept., 1889
PROVISIONAL SPECIFICATION.
Window Fastening.
1 SAMUEL RUSSELL of Apperton Villa London Road Stanwell in the County of
Middlesex do hereby declare the nature of this invention to be as follows:-
The object of this Invention is to fasten window sashes in such a manner that
they cannot be opened from the outside, and at the same time to secure them
against the possibility of rattling. My contrivance for this purpose somewhat
resembles the common window fastening, and is fixed in a similar manner & position
on the sashes, the top one being, also in a similar manner a latch capable of being
turned across the two sashes and under a catch on the bottom one. When in this
position a thumb-screw, passing vertically through a suitable part of the latch,, by
being turned is made to press on an inclined plane fixed in a suitable position on
the lower sash, the direction of the inclination being downwards from the outer
towards the inner side of the sash. The pressing and sliding action of the screw on
the inclined plane will force the top & bottom sashes firmly against the top &
bottom respectively of the window frame and at the same time draw the meeting
bars together so as to nip tightly the side beads which pass between them, thus
fastening the sashes and securing them against the possibility of rattling.
The latch may be attached to the upper sash by turning loosely on a fixed pin or
by the means of an universal joint. To prevent the latch, when the sashes are
fastened, being turned back from the outside by means of a knife or other instrument,
the inclined plane may be grooved in the direction of the inclined to receive the
lower end of the thumb-screw. Or the catch may be notched on the underside to
receive the loose end of the latch when lifted by the turning of the thumbscrew.
Sometimes instead of the inclined plane I incline, but in the opposito direction, the
upper side of the loose end of the latch where it comes in contact with the catch
and let the lower end of the thumb-screw press on a horizontal plate. Sometimes
also in the latter arrangement instead of the thumb-screw I have a nut screwing on
to the fixed pin on the upper sash by which the latch, which turns on it, may be raised
or depressed. The latch in this case being provided on the under side with a spur or
boss which when the latch is turned forward across the sashes will rest on the
horizontal plate and act as a fulcrum, or the spur or boss may be attached to the
horizontal plate instead of to the latch.
09 1 1
1000
SAMUEL RUSSELL.
COMPLETE SPECIFICATION.
Window Fastening.
I SAMUEL RUSSELL Architect of Apperton Villa, London Road, Stanwell, in the
County of Middlesex, 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 fasten window sashes in such a manner that they
can not he opened from the outside, and at the same time to secure them against the
possibility of rattling. My contrivance for this purpose somewhat resembles the
common window fastening, and is fixed in a similar manner and position on
the sashes, the top one having, also in a similar manner, a latch capable of being
turned across the two sashes and under a catch on the bottom one. When in this
position a thumb-screw, passing vertically through a suitable part of the latch, by
being turned is made to press on an inclined plane fixed in a suitable position on the
01

page_text: .
lower sash the direction of the inclination being downwards from the outer towards
the inner side of the sash. The pressing and sliding action of the screw on the
inclined plane will force the top and bottom sashes firmly against the top and bottom
respectively of the window frame and at the same time draw the meeting-bars
together so as to nip tightly the side heads which pass between them, thus fastening
the sashes and securing them against the possibility of rattling.
Or
By the following description and reference to the accompanying sheet of drawings
this invention will be clearly understood. Figure 1 is a side elevation and figure 2
a plan of one form of my invention. A is the top bar of the lower sash. B is the
lower bar of the top sash. C is a latch capable of turning loosely on a pin D fixed
firmly in the plate E which is secured to the upper side of the meeting-bar B.
the latch C may be attached to the plate E by means of an universal joint.
F is an
inclined plane fixed to the plate G and having its highest end on the extreme edge
of the side near to E, the plate and inclined plane being screwed or otherwise fixed
to the meeting-bar A. When the latch is turned forward across the two meeting-bars,
as shown in the drawing, the loose end H passes under a catch I fixed to the
plate G.
When in this position a thumb-screw J passing vertically through the
latch may be screwed down to press on and slide down the inclined plane drawing
the meeting-bars together and niping the side beads of the window frame tightly
between them, at the same time the sashes will be driven firmly against the top and
bottom of the window frame the top one upwards and the lower one downwards. To
prevent the possibility of the latch being turned back from the outside by means of a
knife or other instrument the inclined plane may be grooved to receive the end of
the screw, or the catch I may be made with a notch on the under side into which
the end H of the latch will be lifted on fastening the window.
Sometimes instead of the inclined plane I incline, but in the opposite direction, the
upper side of the loose end II of the latch where it comes in contact with the
catch I and let the lower end of the thumb-screw press on the plate G as shown at H¹
figure 3.
The angle of the incline should be about 25 degrees which will give more power
for the vertical movement of the sashes than for the drawing of them together. This
is practically desireable. The pin D should be made with a cross head V shaped on the
under side, and the opening in the latch through which the pin passes should be
widened out on the upper and under sides in the direction of the length of the latch.
This arrangement is indicated by the dotted lines in figure 1, and by the firm lines
in figure 2, by its means the loose end H of the latch may rise and fall freely and
the strain on the pin be always central.
In the drawing, figures 1 and 2, is indicated by dotted lines an opening Y through
the plate G extending from the bottom of the incline to a convenient distance from it
to allow a tool to be used freely in forming the incline, the opening being made the
width of the incline and in the same direction.
Figure 4 is an elevation of which figure 5 is a plan of another arrangement of my
invention suitable for small or light sashes. The latch K has attached to it a pin L
which is rivetted loosely in the block M through which it passes and turns freely, the
block being attached to the meeting-bar of the upper sash. The inclined plane is fixed
.as in figure 1. The loose end of the latch is inclined downwards so, that when turned
forward over the inclined plane it is parallel with it. A thumb-screw passes through
the latch and enters a groove on the face of the incline O in which it is free to
slide. W is a stop for the latch when either open or closed.
Figure 6 is another arrangement also suitable for light sashes. In this case the
loose end of the latch has a projection R which enters and slides in the groove in
the inclined plane. The latch has a bearing at S on the block T. V is a thumb-screw
passing through the latch and screwing into the block T which is fixed on the
meeting-bar of the top sash. The arrangement where the screw passes through the
latch is similar to that described at D figure 1 to admit of the free rise and fall of
the loose end of the latch.

page_text: I have now described several arrangements of my invention but I do not confine
myself to these for I could were it here desireable give drawings and descriptions of
others for a like purpose, nor do I claim all the parts separately of those I have
described and drawn, but what I claim is :-
First The combinations of the various parts of the three arrangements herein-before
drawn and described, or any mere imitation of the same.
Secondly The use of an inclined plane or surface as herein-before described and
drawn or in combination with any parts whatever which can be arranged for the
same purpose.
A
1
SAMUEL RUSSELL.