Improvements in Sash Fasteners for Windows.
Year: 1892

page_text: Date of Application, 8th Mar., 1892
Complete Specification Left, 13th Aug., 1892-Accepted, 17th Sept., 1892
PROVISIONAL SPECIFICATION.
Improvements in Sash Fasteners for Windows.
I, CHARLES HORRELL, of No. 25, Hillgrove Street, Stokes Croft, Bristol, Gas
Fitter do hereby declare the nature of this invention to be as follows:-
My invention relates to a new or improved sash-fastener for windows, which will
render them burglar-proof, and at the same time prevent the noise and rattle caused
by the wind blowing the sashes one against the other.
Many attempts have been made to produce sash fasteners that shall effectively
resist the attacks of burglars from the outside, but they have been mostly of an
expensive, and complicated nature; the object of my invention is to provide a
fastener that is simple and reliable in its operation, which can be made at practically
the same cost as the cheapest fastener in the market.
To carry my invention into effect, I make the catch of the fastener (which is
placed on the lower sash of the window), the usual convex shape, so that the arm
may pass under it, and the knob which is inserted at the end of the arm may be
guided into position by the edge of the catch; but in that part which is opposite
to the hinge of the arm, a small curved recess is made in the edge of the catch;
the knob at the end of the arm is made with a small cam near the bottom, and
fitted so that it may operate on the edge of the catch; instead of the knob being
rivetted firmly and rigidly to the end of the arm, as is done with fasteners at
present in use, it is so fastened that it may be turned in any direction, the
circumference of the knob being conveniently milled, to afford a better grip and
allow it to be more readily turned, by which the cam is moved in the direction
required.
The cam being fitted on the lower part of the knob, and the concave indentation
made in the edge of the catch as described, my improved fastener is operated by
pulling over the arm by the knob in the usual manner, placing the arm under the
catch, and then giving the knob a slight turn, which will cause the cam to engage
in the curved recess in the catch, and so tighten the two parts of the fastener, that
the sashes will be drawn closely together, and it will be impossible for them to make
a rattling noise by being blown one against the other; and any attempt on the part
of a burglar to push back the arm, would only press the cam more firmly into the
recess in the catch, and thus defeat his attempt to obtain a noiseless entrance by
the window.
Dated this 7th day of March 1902
J. G. WESTLAKE,
2, John Street, Bristol, Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in Sash Fasteners for Windows.
I, CHARLES HORRELL, of No. 25, Hillgrove Street, Stokes Croft, Bristol,
Gas-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 a new or improved sash fastener for windows, which will
render it impossible to open them from the outside, and at the same time will enable
the sashes to be drawn tightly together, and so prevent rattling and noise; the
invention consists of attaching a cam or eccentric to the knob which engages
curved recess in the catch, and practically locks the fastener.
in a

page_text: The nature of my invention and the construction and arrangement of the various
parts of the fasteners will be readily understood by reference to the accompanying
sheet of drawings, in which.
Fig. 1 represents the fastener on the sashes of window, with the arm drawn over
into the catch and the cam turned into the curved recess of the catch.
Fig. 2 shows the fastener in a like position, but with the arm only partly drawn
over the catch plate, so as to indicate more clearly the shape of the cam and the
curved recess in which it engages, and
Fig. 3 is an elevation of the arm and knob when thrown back on the frame of the
upper sash, showing the cam on the knob just above the arm.
A is the catch, having a curved recess B in which the cam Cattached to the
knob D engages, E is the usual arm, which is drawn under the catch A; the knob D
is rivetted to the arm, but left loose so that the cam may be readily turned in the
recess when the arm is in its position in the catch.
The various parts of the fastener being provided as described and shown in the
drawings, their operation is as follows:-When the window is closed, the arm E
which is in the position shown in Fig. 3 is drawn under the catch, like as with an
ordinary fastener, and then the knob is turned in a backward direction, indicated
by the arrow in Fig. 1, this will bring the cam into the curved recess D and firmly
secure the arm in the catch, while any additional pressure on the cam by further
turning the knob will draw the sashes tightly together, and so prevent rattling and
noise; and any attempt to open the window from the outside will be ineffectual, as
the arm can only be released by turning the knob and withdrawing the cam from
the recess.
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 :-
The construction of window fasteners with a cam or eccentric on the knob
engaging in a recess in the catch to prevent the window from being opened on the
outside, and to enable the sashes to be tightly drawn together, substantially as and
for the purposes herein described and set forth in the accompanying drawings.
Dated 10th day of August 1892.
: J. G. WESTLAKE,
2, John Street, Bristol, Applicant's Agent.