Year: 1886

page_text: Date of Application, 7th Apr., 1886.
Complete Left, 1st Jan., 1887.
Complete Accepted, 1st Feb., 1887.
I, ALEXANDER CROSS of 128 Stirling Road, Glasgow, Lanarkshire, Ironmonger, do
hereby declare the nature of my invention to be as follows:-
:-
The object of my Invention is the more perfect securing of the catches or snecks of
the sash fasteners which secure the upper and lower sashes of windows on the inside
from being moved up or down from the outside, and to retain them perfectly close.
And the nature and novelty of my Invention consist in screwing or mounting on
the upper rail of the lower sash of the window a horizontal plate on which is cast or
secured a V or an undercut segment having a new rack with ratchet cut teeth on its
inner face. The lower rail of the upper sash which is on a level with the top of the
under sash of the window, has mounted or screwed on it a corresponding plate with a
vertical U shaped flange on its outer side, on the inner side of which flange is secured
a spring plate. The one end of a horizontal movable lever is secured to a horizontal
hinge on this spring plate by means of a vertical pin passing through a projecting eye
on the top of the flange and attached to the screwed plate below with heel and anti-
friction roller behind and stop hinge which retain the lever in its extreme inward and
outward positions much in a usual manner. This horizontal movable lever has a dove-
tailed groove or recess formed on its under side near its inner end to slide over the
segmental rack fitted on the upper rail of the lower window sash and grip it, to hold
the two sashes of the window close, the one tightly up and the other tightly down
and keep them from shaking with the wind. On the side of this groove nearest the
apartment is fulcrumed below by means of a pin or other equivalent a new thin vertical
swivelling lever catch which passes up through a slot in the horizontal lever and
projects some distance above it, and weighted near its upper end or have a light spring
mounted behind it to press the catch always outwards in its slot automatically into the

page_text: ratchet teeth. The actuating hand or thumb knob mounted on the outer extremity of
the horizontal movable lever has a recess in its side nearest the slot of the vertical
flange lever of the catch to rest in when moved into it by the hand.
When the window frames or sashes are to be locked or secured the horizontal lever
is moved by means of the hand knob from its position parallel to the bottom of the
upper window sash until it passes over and is held by the segmental rack on the top of
the lower window sash. On removing the hand from the knob the catch on lower end
of the finger vertical lever falls automatically into the ratchet teeth on the front of the
rack and locks the horizontal movable lever in that position until removed by the
finger in pressing it in contact with the knob, when turning the horizontal lever for
opening the window.
Improvements in Sash Fasteners for Windows.
I, ALEXANDER CROSS, of 128 Stirling Road, Glasgow, Lanarkshire, Ironmonger,
do hereby declare the nature of my said invention and in what manner the same is to
be performed to be particularly described and ascertained in and by the following
statement in writing, reference being had to the accompanying Sheet of Drawings,
and to the letters and figures marked thereon, that is to say:-
The object of my Invention is the more perfect securing of the catches or snecks of
the sash fasteners, which secure the upper and lower moving frames of windows on the
inside from being moved up or down from the outside, and to retain them perfectly
close.
And in order that my said invention and the manner of performing or carrying the
same into effect or practice may be properly understood, I have hereunto appended an
explanatory Sheet of Drawings, in which the same reference letters are used to indicate
corresponding parts in all the Figures where shown. Figures 1 and 2 are perspective
views showing my new or improved sash fastener applied to lock the upper and lower
rails E, E', of the lower and upper sashes respectively of a window. In Figure 1, the
lever retaining teeth a are shown as formed on the front or vertical inner face of the
segmental rack A, and in Figure 2, these teeth a are shown as formed on the top or
upper horizontal surface of the rack A. Figures 3 and 4, show an elevation and plan
respectively, to an enlarged scale, of my improved sash fastener shown in Figure 1,
while Figures 5 and 6, show corresponding views, of the sash fastener illustrated in
Figure 2.
Referring to these Drawings, the nature and novelty of my Invention consist in
securing by screws e, or otherwise mounting, on the upper rail E of the lower sash of the
window, a horizontal plate B on which is cast or secured a V or an undercut segment A,

page_text: having a new rack with ratchet cut teeth and notches a on its inner vertical face, as
shown in Figures 1 to 3, or on its upper horizontal face as shown in Figures 4 to 6.
The lower rail E' of the upper sash, which is on a level with the top of the under sash
of the window when the sashes are to be secured,-has mounted or screwed on it a corre-
sponding plate B' with a vertical U-shaped flange B2 on its outer side, on the inner
side of which flange is secured or riveted a spring plate C. The one end of a hori-
zontal movable lever A' is secured to a horizontal hinge on the plate B¹ B' by means
of a vertical pin c passing through a projecting eye on the top of the flange B² and
attached to the screwed plate B' below, with heel and anti-friction roller c¹ behind and
stop hinge which retain the lever A¹ in its extreme inward and outward positions
respectively much in a usual manner, as shown in Figures 4 and 1 respectively. This hori-
zontal movable lever A' has a dovetailed groove or recess A* formed on its under side near
its inner end to slide over the segmental rack A, fitted on the plate B of upper rail E of
the lower window sash, and grip it, to hold the two sashes of the window close, the one
tightly up and the other tightly down and keep them from shaking with the wind. On
the side of this groove A² nearest the apartment, is fulcrumed below by means of a
horizontal pin 6 or other equivalent, a new thin vertical swivelling lever catch b, b²,
which passes up through a slot in the horizontal lever A', and projects some distance
above it, and weighted near its upper end, (or it might have a light spring mounted
behind it) to press the catch always outwards in its slot automatically into the
ratchet teeth a. The actuating hand or thumb knob A³ mounted on the outer
extremity of the horizontal movable lever A¹, may have a recess in its side nearest the
slot of the vertical flange lever 62 of the catch to rest in when moved into it by the
hand.
When the window frames or sashes are to be locked or secured at their upper and
lower rails E, E, the horizontal lever A' is moved by means of the hand knob A³ from
its position parallel to the bottom of the upper window sash E', until it passes over and
is held by the teeth a of the segmental rack A on the top of the lower window sash E.
On removing the hand from the knob A³, the catch on lower end of the finger vertical
lever falls through the slot automatically into the ratchet teeth a, on the front
vertical or horizontal faces of the rack A, as shown in Figures 3, 4, and 5, 6, and locks
the horizontal movable lever A¹ in that position until removed by the finger in pressing
it in contact with the knob A³ when turning the horizontal lever A¹ for opening the
window.
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 :-
First. The constructing of sash fasteners for windows with a toothed or grooved
segmental rack and retaining catch spring lever, substantially as and for the purposes
herein set forth.
Second. In sash fasteners for windows, the construction of a segmental rack A with
iceth a, and a horizontal movable lever A¹, with swivelling catch lever b, 62, substan-
tially as herein described, in reference to and shown in the accompanying Drawings.