An Improved Safety Window-fastener.
Year: 1890

page_text: Date of Application, 17th Mar., 1890
Complete Specification Left, 16th Dec., 1890-Accepted, 24th Jan., 1891
PROVISIONAL SPECIFICATION.
An Improved Safety Window-fastener.
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I, GEORGE DYSON SYKES, of Upperhead Row, Huddersfield, in the County of
York, Manufacturer, do hereby declare the nature of this invention to be as
follows:-
IL
The object of my invention is to provide a safe, neat, and secret window fastener,
consisting firstly of a scrowed boss or plate placed on the framework of the outer
window sash, and secondly of a boss or plate with or without screw thread fixed to
the framework of the inner window sash. The two bosses are countersunk into the
woodwork, having their surfaces flush therewith. A screw with a suitably shaped
head is employed, made to pass through the two bosses, so as to secure the two sashes
together. In order that the head of the screw may be sunk flush with the framework,
the head of such screw is provided with one, two, or more slots or holes for the
reception of a key, which, on being turned, screws the head into an opening in the
outside boss, so that when screwed "home" the sashes are drawn tightly together and
the head of the screw flush with the wood work so that it cannot be tampered with
from the outside. This form of window fastener prevents the rattling of windows by
wind and other causes, and is neat in appearance, and cannot by any possible means
be unscrewed from the outside, neither from the inside without the use of the key.
Instead of having recesses or holes in the head of the screw, it may be squaro or
other shape, and a suitably formed key may be employed to operate it.
The above form of window fastener is adaptable for use in connection with sliding
sashes or with casement windows.
Dated this 15th day of March 1800
COMPLETE SPECIFICATION.
An Improved Safety Window-fastener.
1, GEORGE DYSON SYKES, of Upperhead Row, Huddersfield, in the County of
York, Manufacturer, 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. :-
The object of my invention is to provide a safe, neat, and secret window fastener,
consisting firstly of a screwed boss or plate placed on the framework of the outer
window sash, and secondly of a boss or plate with or without screw thread fixed to
the framework of the inner window sash. The two bosses are countersunk into the
woodwork, having their surfaces flush therewith. A screw with a suitably shaped
head is employed, made to pass through the two bosses so as to secure the two sashes
together.
Such being the nature and object of my invention, I will now proceed to describe
the same more fully, and for that purpose make reference to the annexed sheet of
drawings illustrative thereof, wherein Fig. 1 is cross section of the sash bars of an
inner and outer window, A being the top sash of the inner window, and B the lower
sash of the outer window. a represents a nut or tapped boss secured to the outer sash
bar by screws or other devices; is a tube or boss made with or without internal
screw threads, and it is attached to the inner sash bar A by screws c as shewn in front
view Fig. 2. The screw or bolt for drawing the two sashes together and making them
secure is shewn at C, which enters into the nut a, such said screw being operated
backward and forward for the purpose of unfastening or fastening the windows by
ED

page_text: means of the key D provided with prongs d made to enter holes e in the head of the
screw C. It will be seen that the head of the screw C is made to enter a corresponding
recess in the boss or short tube b, and that such head is flush with the woodwork of the
sash which prevents it being tampered with from the outside.
In Fig. 3 I have shewn that the head of the screw may be formed with wings or
projecting parts f, shewn also in Fig. 4, which is end view of the said screw. The
wings may be moveable so as to work upon hinges or pins as shewn at g in Figs. 5
and 6. These moveable wings lodge in slots or grooves made in the head of the
screw C, and when not in use they lie within the slots as shewn at Fig. 5 and again
in Fig. 6; but when required to be used for the purpose of operating the screw C they
aro lifted out of their slots so as to project as shown in Figs. 7 and 8 for the purpose
of giving increased leverage thereto. In Fig. 9 I have shown one end of the screw C
to be made hollow in which is inserted a loose spindle having a milled head F. The
spindle h is made with a key i capable of working in a slot or groove formed in the
hollow screw C so that when the inilled head is turned around, the screw is operated
thereby. If increased leverage is required upon the head of the spindle, it can be
withdrawn as shewn in dotted lines.
The above form of window fastener is adapted for use either in connection with
sliding sashes or with casement windows.
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
Firstly. The combination of parts forming my improved window fastener,
comprising a screwed boss a screwed or unscrewed boss b, screw C, the head of
which is made flush with the outside of the window sash, all arranged and operated
as described.
Secondly. In a window fastener, the combination of screwed boss a screwed or
unscrewed boss b, screw (operated by a key, as described and shewn in the
drawings.
Thirdly. In a window fastener, the combination of screwed boss a screwed or
unscrewed boss b, screw C, operated by rigid or moveable wings f, as described and
shewn in the drawings.
Detail this 16th dove of Drasoshan 1800.