Improvements in Window and like Sash Fasteners.
Year: 1898

page_text: Date of Application, 24th Nov., 1898-Accepted, 14th Jan.,
1899
COMPLETE SPECIFICATION.
Improvements in Window and like Sash Fasteners.
I, HENRY DAVIES, of 14, Jenkin Street, Porth, Rhondda Valley, South Wales,
Miner, 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:―
My invention relates to improvements in window and like sash fasteners and
the objects are to provide a fastener which automatically secures the window
directly it is shut and which cannot be opened by a knife passed between the
sashes. Further provision can be made for signifying by electric bell that the
fastener is being tampered with from the outside. Although more particularly
intended for use with window sashes it can be employed for any analogous pur-
poses and I do not therefore restrict it to that one use." In carrying my invention
into effect I proceed in or in about the following manner, assuming for the pur-
pose of this explanation that the invention is applied to window sashes and making
reference to the accompanying sheets of drawings in which Fig. 1 is a front view
of the outer face of the top rail of the inner (lower) sash. Fig. 2 a front view of
the inner face of the bottom rail of the outer (upper) sash. Fig. 3 a plan of the
two sashes. Fig. 4 a section through Z Z of Fig. 3. Fig. 5 a longitudinal section
of a modified form of catch for the inner sash. Similar letters indicate the same
parts wherever occurring.
a is the bottom rail of the outer sash and b the top rail of the inner sash. To
6 is attached the plate c having pivotted between supports d the catch e, the hook
f of which is of such weight as to keep in contact with the plate c.
The outer end
of e is prolonged as at g and may have arranged below it the push h of an electric
bell provided elsewhere. The notch behind the hook end of e is cut back some-
what in dovetail fashion as at i. On the outer face of b is a small projection j
hanging from the plate c. jis flush with the outer face of b and has below it the
groove of depth equal to the thickness of j, and running out at the lower edge of
the rail b.
To the outer sash a is attached the plate which is turned down at 7 and upwards
at m. Upstanding from k is the pin on which can turn the lever o which is
extended beyond n. At one end of o is the knob or handle p and at the other end
the pin q. The end of a spring r is attached to n, the spring being then wrapped
round and the opposite end attached to the pin q, all in such manner as will
cause the lever o when released to spring out and across the top of sash b. If
desired a bent plates may extend from the pin q to the lever o. Behind the
plate 7 and pivotted at one end thereto is the lever having an arm u upstanding
through a hole in plate k and a downward arm to which is attached the projection
w working in and extending through the slot in plate b. The position of wis
such that it will be pushed down by the projection ; when the sashes are closed,
the grooves allowing the lower sash to be pushed up without touching w. This
pushing down of wc causes the projection n to come below the plate a thus leaving
to be sprung forward by the action of the spring r. The lever o is sloped off so as
0

page_text: to correspond to and accommodate itself to the cut back notch i of hook f. The
action of the fastener is as follows, assuming the lever o to have been pushed back
behind the projection u and the lower sash to have been raised. Then on pulling
down the lower sash the projection ; will press down the projection w thus causing
the projection u to come below the plate a whereupon the lever o will spring out
across the sashes a and b and pass under the hook f of the catch e, the sloping side
of o resting in the cut back part i. In this manner the window is automatically
fastened simply by lowering the inner sash. The lever o can only be pushed back
to allow the sashes to be opened by raising the hook f, this will naturally lower the
end g and bring it into contact with the push h and sound the electric bell.
Instead of the pivotted catch e I may attach to the under side of the plate c a spring
y (Fig. 5) having at end end the hook z projecting upwards through a hole A in
the plate c.
A bent staple B is provided against which the lever o will strike
when it is released and passes under notch in the hook z.
I do not confine myself to the precise configuration, shape, relative proportions
or dispositions of parts as shown in the drawings as any or all of them may be
varied without departing from the essential features of my invention.
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. Window and like sash fastenings comprising two main parts, namely (a) An
outer sash part consisting essentially of a plate carrying an upstanding pin round
which is free to turn one end of a spring lever the spring of which causes the
said lever to spring out across the inner and outer sashes when they are in a
closed position, the said plate having below it a lever with an upstanding pro-
jection passing through a hole in the plate and destined to keep the said spring-
lever clear of the inner sash when so required and having also a lower arm pro-
vided with a projection free to work in and project through a slot in a plate on the
inner face of the sash. (b) An inner sash part consisting of a plate carrying a
pivotted catch with a somewhat dovetailed hook at one end to receive and retain
the spring lever of the outer sash part, the said catch having or not a prolonged
tail below which is the push of an electric bell, a projection also hanging from the
plate and within a groove in the sash and so positioned as to press down the
projection working in the slotted face of the plate on the inner face of the outer sash
for the purpose of releasing the spring-lever of the said outer sash, the whole sub-
stantially as described in the above specification and exemplified by Figs. 1, 2, 3
and 4 of the accompanying drawings.
2. As a modification of the inner sash part mentioned in the preceding Claim 1 a
plate having attached to its under side a spring provided with a hook passing
through the said plate to which plate is also attached a bent staple, the whole sub-
stantially as described in the above specification with reference to Fig. 5 of the
accompanying drawings.
3. The combination of parts substantially as described in the above specification
and exemplified in the accompanying drawings and operating as fasteners for win-
dow and like sashes.
Dated this 1st day of November, 1898
HUGHES & YOUNG,
23, Coleman Street, E.C., Agents.