A New or Improved Fastener for Sashes, Casements, and the like.
Year: 1893

page_text: Date of Application, 23rd Mar., 1893
Complete Specification Left, 22nd Dec., 1893-Accepted, 27th Jan., 1854
PROVISIONAL SPECIFICATION.
A New or Improved Fastener for Sashes, Casements, and the like.
I, ALFRED JABEZ COOPER of 83 Thurlow Street, Walworth, in the County of
Surrey, Shop Fitter, do hereby declare the nature of this invention to be as
follows:
My invention relates to an improved fastener for window sashes, casements,
French doors, fanlights and the like, the object of which is that such openings,
to and with which it is fitted, cannot possibly, when fastened thereby, be opened
from the outer or opposite side to that upon which the said fastening took place.
Several methods and devices have hitherto been constructed with a view to so
fasten a pair of window sashes, casement, or the like, as to frustrate the usual
method of fraudulently opening same by the insertion, from the outer side, of a
knife blade or other flat substance between the opening parts, and so push the
catch of the fastener back, but all these have either possessed a more or less
complicated means of attaining the end desired, and which was often neglected to
be carried out in detail by the domestic in charge thereof, or else from the nature
of the design or size or both, these have not been suited for all kinds of sashes or
casements indiscriminately, but, my said invention, in its manner of operation, is
simplicity itself, and may be employed in fastening any and every kind of window-
sash, casement or the like, whatever width the bars of same may be, and by the
means of an automatic spring locking device, in combination therewith, the
sashes, casement or the like fastened thereby, cannot possibly be unfastened
except by the action and will of some person duly authorized to do so, and
located upon the inner or same side as that on which the operation of fastening
took place.
In so far as regards vertically sliding window sashes, I carry my invention
into effect by the employment of two metal plates, one of which is screwed upon
the bottom bar of the top sash, and the other upon the top bar of the bottom sash,
a clearance existing between the said plates sufficient to permit the proper working
of the sashes. Upon the plate upon the upper sash I provide an upstanding ridge
or flange, which forms an abutment for a spring, and upon this plate is pivotted
one end of a locking bar, capable of shutting back against the said ridge or flange
when not in use, and there retained by the tension of the said spring, or capable of
extending outwardly and over the plate upon the bottom sash; when forced from its
position of rest against the tension of the said spring, the power of which, and the
particular formation of the pivotted end of the said bar, being such, as not to permit
the bar to rest in any position midway of its position of rest or at right angles
thereto.
Upon the under surface of the bottom sash plate is an arm, one end of which is
pivotted thereto, the opposite end terminating in a knob which extends upwardly
therefrom and passes through a hole in the said plate, and upon the same arm, and
about midway of its length, a tapered swelling is formed, which extends upwardly
therefrom through a second hole in the same plate, and kept in that position by the
tension of a suitable spring.
The action of passing the locking bar upon the top-sash plate, over the plate
upon the bottom sash, (when the window is closed), to its position of work within a
guide thereon, causes the depression of the said swelling, and consequently the arm
thereof, upon the bottom-sash plate, until this has been passed and cleared by the
locking bar, when it immediately rises by the tension of its spring, and the said
swelling fixes the locking bar in position, from which it cannot possibly be

page_text: released until the said swelling is lowered, which can only be attained by
depressing the knob at the free end of the locking arm, which cannot be doue fron
any but the inner side of the window, or that side upon which the fastener is
placed.
The same manner of attachment of my improved fastener applies to casements or
French windows, or fanlights or similar openings, the only difference being that, in
the fastening of casements or French windows, the two said plates would be fixed
upon the two outer vertical stiles of same, while for fanlights and the like, one
plate would be fixed upon the unhinged bar of the light and the other upon the
framework forming the opening for the same.
Dated this 23rd day of March 1893.
GEO. THOS. HYDE,
4, Moorfields, Fore Street, London, E.C., Agent for the Applicant.
A New or Improved Fastener for Sashes, Casements, and the like.
I, ALFRED JABEZ COOPER of 83 Thurlow Street, Walworth, in the County of
Surrey, Shop Fitter, 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 an improved fastener for window sashes, casements,
French-doors, fanlights and the like, the object of which is, that such openings to
and with which my invention is fitted, cannot possibly when fastened thereby, be
opened from the outer or opposite side to that upon which the apparatus is fixed,
and the said fastening took place.
My invention is designed chiefly with a view to frustrate the usual method of
fraudulently opening the window, casement or the like, by the insertion from the
outer side of a knife or other flat substance placed between the opening parts, by
means of which the usual apparatus for fastening could be more or less easily
pushed back, and the fastening be thereby released, and although many devices
have hitherto been constructed with a view to attain this end, these have usually
been accompanied by some complicated means, of adjustment, the neglect to carry
out which has rendered the appliance useless, and in many cases the nature of the
design or size of these or both has prevented their general use upon all kinds and
sizes of sash bars, casements and the like, but the apparatus constituting my
invention may be fixed upon any sash, casement, or faulight, unless these be
abnormally small, and the manner of its operation is simplicity itself, and to some
extent automatic, and such openings fastened thereby cannot be opened or un-
fastened by a person upon the outer or opposite to that upon which the appliance
is fixed.
In order that my invention may be clearly understood reference is herein made
to the accompanying drawings, in which,
Fig. 1 is a plan view of my said fastener shewn in position upon the cross rails
of an ordinary window sash, as it would appear when not locked.
Fig. 2 is a front view of the front portion of the apparatus, shewn detached.
Fig. 3 is an end view of the said fastener as it would appear when locked, if
viewed from the right to left of Fig. 1, Fig. 4 being a like view of same, if viewed
from left to right of Fig. 1.
Fig. 5 is a side view of the locking device forining part of the front portion of
the apparatus, and shewn more graphically in position thereon by the view Fig. 2.
Fig. 6 is a detatched plain view of the locking bar of the apparatus.
I will proceed to describe my invention in connection with an ordinary vertically
sliding window sash, which I carry into effect by the employment of two metal

page_text: plates A and B, one of which A I screw upon the bottom bar C of the top sash,
and the other B upon the top bar D of the bottom sash, in such a manner, that a
clearance exists between A and B sufficient to permit the vertical movements of C
and D. Upon the plate A I provide an upstanding ridge or flange E, which forms
an abutment for the locking bar, and for carrying a spring F (shewn by dotted
lines in Fig. 1). Upon the plate A is pivotted one end of a locking bar G, (shewn
detatched at Fig. 6) by the means of a stud H passing through a hole a in G, and
screwed into or otherwise connected to the plate A. The free end of the locking
bar G is provided with a heel b and an extension c, the former of which abuts
against the spring F, the tension of which operates in keeping the bar G shut
against the ridge E, when the apparatus is unlocked as at Fig. 1, or at right angles
to this position when the apparatus is locked as at Figs. 3 and 4, the heel piece b
being so formed that a slip takes place between this and the spring F, when the
bar G is about midway between its locked and unlocked positions, thus ensuring
that the apparatus cannot through neglect or carelessness be only partly locked,
but must at all times be either locked or unlocked.
Upon the top of the plate, B is fixed a cresented angle plate J, under which the
arm G passes when the apparatus is locked as shewn at Figs. 3 and 4. To the
under surface of B is fixed one end of a spring bar K (shewn detatched at Fig. 5)
the opposite end of which carries a knob L, which extends upwardly therefrom,
and passes through a hole in the plate B, and upon the same bar K, and about
midway of its length, a tapered swelling d is formed or attached thereto, which
extends upwardly therefrom through a second hole in B, and kept in that position
by the tension of K.
In locking the apparatus the bar G would be brought from its position shewn
by Fig. 1 (when the window has been closed) over the plate B and under J,
passing over and depressing in its course the swelling d, which again rises by the
tension of K after G has passed, thus locking the bar G as at Fig. 3, from which
position it cannot be released until d is lowered, which can only be effected by
depressing the knob L, and this cannot, be done from outside the window, and only
by some person upon the inner side or that upon which the apparatus is fixed.
When the apparatus is locked the extension c upon G abuts against the end of the
spring F, thus preventing the violent contact that would otherwise occur between
G and J.
The same manner of attachment of my improved fastener applies to casements,
French windows, fanlights and similar openings, the only difference being, that in
the fastening of casements or French windows, the plates A B would be fixed upon
the two outer vertical stiles C D of same, which Figs. 3 and 4 inay be taken to
illustrate, while for fanlights and the like one of said plates A or B would be fixed
upon the unhinged bar of the light and the other upon the framework forming
the opening for same.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is,
In an improved fastening and locking device for windows, casements, fanlights
and the like, the combination of a pair of plates A B, the former carrying a spring F,
impinging against a projection 6 upon the heel of a locking bar G pivotted at H,
the latter provided with a crescented angle plate J, and locking device K d L,
for retaining the bar G in its locked position, the whole connected and operating
substantially as and for the purposes herein described and shewn by the accom-
panying drawings.
DL: 00-1 L
GEO. THOS. HYDE,
4, Moorfields, Fore Street, London, E.C., Agent for the Applicant.