IMPROVEMENTS IN WINDOW SASH FASTENERS
Year: 1885

page_text: We ISAAC EDWIN HIGGINBOTHAM of N° 6 Limefield Blackburn in the county
of Lancaster Ironmonger's Assistant and HORATIUS JOHN BOLTON HOLLAND of
No 12 Whalley Banks Blackburn in the County of Lancaster Hardware Dealer
do hereby declare the nature of our invention for IMPROVEMENTS IN WINDOW SASH
FASTENERS to be as follows:-
Our invention relates to window fasteners of such windows as are made in two
or more parts so that each part or sash can be moved vertically up or down as may
be required for cleaning or other purposes-and when closed are fastened by means
of a lever mounted on a plate of metal and attached to the outside part of the
window or sash to the front part of which window or sash is fastened another plate
with a loop on the top part for the purpose of preventing the lever from getting
strained by the weight of the upper part or sash. When so fixed and the window
requires to be closed and fastened the operator after closing the window takes hold
of the lever that is attached to the back plate by a button or knob provided for
the purpose at the outer end of the lever-which lever is when the window is
unfastened in a line with the plate, on which it radiates, brought round and under
the loop provided for its reception on the plate fixed on the front part of the sash
and the lever then rests at right angles with the window and locks the two sashes
together-but this system has been found to be very unsafe arising from carelessness
on the one hand by often being left open and on the other hand this lever can be
tampered with by burglars and others from the outside by inserting a thin piece of
metal between the sashes and forcing back the lever from the inside sash and so;
giving access to the room.
Our invention prevents all this and renders the window quite safe.
We place a self-acting stop-block either on the loop-plate on the front or inside
sash or on a separate plate fixed beside it. When the window is closed and
fastened the stop-block is fixed at right angles with the front part of the lever and
is constructed with an internal or external spring and is attached to the plate by a
screw or rivet. When so fixed the operator when the window is required to be
opened takes hold of the stop-block with one finger and forces back the lever with
the thumb and on releasing the stop block it falls back to its place again. When

page_text: the window requires to be fastened the operator takes hold of the lever only and
as it is drawn over the front sash it forces backwards the stop block till it has
passed its front end after which the stop block without any help falls back in front
of the lever and so stops the lever from being opened from the outside by burglars
or others, and as these improvements can be applied to existing fasteners this
invention will be found to be of great utility.
We ISAAC EDWIN HIGGINBOTHAM of N° 6 Limefield Blackburn in the county
of Lancaster Ironmonger and HORATIUS JOHN BOLTON HOLLAND of N° 12 Whalley
Banks Blackburn aforesaid Iron and Tin Plate Worker and Hardware Dealer do
hereby declare the nature of our invention for IMPROVEMENTS IN WINDOW-SASH
FASTENERS and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
Our Invention relates to window-fasteners of such windows that are made in
two or more parts so that each part or sash can be moved vertically up or down as
may be required for cleaning or other purposes.
In order that our said invention may be fully understood we will now
particularly describe the same by reference to the accompanying sheet of drawings.
Figure 1 is a plan view showing the window fastened. Figure 2 is a plan view
showing the window unfastened. Figure 3 is a sectional view. Figure 4 is a
front view of our invention. A, figure 1, is the top part of the front window sash.
A 1, figure 1, is the back or upper window sash. B are the plates fastened to the
window-sashes by screws F figures 3 and 4. The lever D figures 1, 2, 3 and 4 is
mounted on the back plate A 1 and radiates on its centre G, figures 1, 2 and 3:
this lever is prevented from being strained by the loop H, figures 1, 2, 3 and 4.
When so fitted the window is very unsafe and can be very soon opened from the
outside by any thin piece of metal introduced between the sashes A and Al at J
figure 1 by forcing back the lever D in position shown at figure 2. Our invention
prevents this and makes the window quite thief-proof. We place a stop-block E
figures 1, 2, 3 and 4. We attach this stop-block either to the plate B figures 1
and 2 or to a separate plate. We fix this stop-block at right angles with the
lever D figure 1 and it is constructed with an internal or external spring so that it
can radiate outwardly on its axis K. When so fixed the operator takes hold of

page_text: the stop-block E forcing it outwardly in the direction of the arrow in figure 1; so
as to allow the lever D to fall back in the position shown at figure 2: the window-
sashes now being at liberty to be moved either way and the stop-block having
adjusted itself, the operator takes hold of the lever D figure 2 and brings it forward
towards the stop-block E, which it forces back as far as is required to allow the
lever D to pass; after which the stop-block E falls back into its place and so locks
the window.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that we
do not claim parts D, H, B, figures 1 and 2 as they are old, nor do we confine
ourselves to the precise shape of the stop-block E figures, 1, 2 and 4; but what we
do claim as our invention is
The use and application of the novel stop-block E figures 1, 2 and 4 substantially
as described and illustrated.