IMPROVE- MENTS IN AND CONNECTED WITH WINDOW FASTENERS
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by the said Thomas Henry Collins at
the Office of the Commissioners of Patents on the 22nd February 1883.
THOMAS HENRY COLLINS of Winchester in the County of Hants "IMPROVE-
MENTS IN AND CONNECTED WITH WINDOW FASTENERS
"
The chief object of this invention is to afford means for opening and closing the
sashes of windows with facility and securing them in their frames at almost any
position in the sash frame that may be required and in such manner that the sash
is practically perfectly secure from being opened from the outside except by first
breaking through the glass of the window.
According to my Invention the sash travels up and down as usual in the sash
frame, in the latter there are provided at suitable distances apart, holes or recesses,
or a rack may be inserted at intervals or may run from end to end of the base of
the sash frame. The sash is provided at one end or at any convenient position
with a spring catch or plate which is preferably let into the sash flush therewith
this catch or plate is so arranged that in its normal position it has always-a
tendency to enter a notch and to remove it from same the other end must be
depressed by the finger. In this manner the sash can be raised or lowered and
adjusted as required to the position or place wanted whether to have the window
fully open or only partially and in either case the spring catch goes into the
aperture in the sash or window frame there provided for its reception. The spring
catch may be simply a balanced lever carrying at one end a tongue or catch which
passes through a slot in the sash, a spring, say a spiral spring, presses under the
end of the catch which is opposite to the tongue end and tends always to keep the
tongue in the slot but from which it can be removed by pressing with the finger
on the tail end. I do not however limit myself to the use of such a catch as that
before described. Pulleys, cords and weights may be fitted when required to
sashės secured according to my Invention and with heavy sashes the cords and
weights would be necessary but for light frames I may in some cases dispense with
the cord and weights entirely. By my Invention I am able to dispense with the
use of the ordinary sash fastener at the centre of the sash.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Thomas Henry Collins in the Great Seal Patent Office on the
22nd August 1883.
THOMAS HENRY COLLINS of Winchester in the County of Hants "IMPROVE-
MENTS IN AND CONNECTED WITH WINDOW FASTENERS."
The chief object of this Invention is to afford means for opening and closing the
sashes of windows with facility and securing them in their frames at almost any
position in the sash frame that may be required and in such manner that the sash
is practically perfectly secure from being opened from the outside except by first
breaking through the glass of the window.
According to my Invention the sash travels up and down as usual in the sash
frame, in the latter there are provided at suitable distances apart holes or recesses
or a rack may be inserted at intervals or may run from end to end of the base of
the sash frame. The sash is provided at one end or at any convenient position
with a spring catch or plate which is preferably let into the sash flush therewith
this catch or plate is so arranged that in its normal position it has always a
tendency to enter a notch and to remove it from same the other end must be
depressed by the finger. In this manner the sash can be raised or lowered and
adjusted as required to the position or place wanted whether to have the window
fully open or only partially and in either case the spring catch goes into the
aperture in the sash or window frame there provided for its reception. The spring
catch may be simply a balanced lever carrying at one end a tongue or catch which
passes through a slot, in the sash, a spring say a spiral spring presses under the
end of the catch which is opposite to the tongue end and tends always to keep the
tongue in the slot but from which it can be removed by pressing with the finger
on the tail end.
In order that my Invention may be more fully understood I will now proceed to
describe the same with reference to the accompanying drawings.
Figure 1 is a vertical longitudinal section and Figure 2 is a part sectional side
view of one form of window fastener or catch constructed according to my
Invention, and Figure 2A is a perspective view of same removed from the frame.
Figure 3 is a vertical longitudinal section and Figure 4 is a part sectional side
view of a modified form of fastener or catch.
Figure 5 is a perspective view of same removed from the frame.
Figure 6 is a perspective view of a window showing the application of my
improved fastener or catch representing more particularly the form shown at
Figures 12 and 8.
Similar letters of reference refer to like parts in all the Figures.
a is the sash frame, a¹ is the sash, b, b shows the holes or recesses in the sash frame;
c, c, are the catches, & shows the fulcrum or point about which the catch moves;
e, is the catch bolt which is jointed to the catch proper o, as shown; fis the spring
for keeping the bolt e of catch c in the recesses or holes of the sash frame: This
spring may be a spiral as at Fig 1 or flat as at Fig 3 or of any other suitable
form is the knob or handle for operating the catch; h is the safety stop or
catch for keeping the bolt e when required in its corresponding hole or recess or
out of same as may be wanted; by pressing the knob g, the spring is com-
pressed and the bolt e is withdrawn from its hole or recess bor from a rack.
as the case may 'be and the sash a' can be moved in its frame to the required
position; on releasing the knob the bolt is free to enter its recess. In the
inodification shown at Figure 5 the handle must be turned to remove the stop h

page_text: from its slot before the knob can be depressed in other respects the action is
similar to the other arrangements.
I do not limit myself to the use of such a catch as that before described. Pulleys
cords and weights may be fitted when required to sashes secured according to my
Invention and with heavy sashes the cords and weights would be necessary, but
for light frames. I may in some cases dispense with the cords and weights entirely.
By my Invention I am able to dispense with the use of the ordinary sash fastener
at the centre of the sash and the window can be kept wholly or partially open
with perfect security.
Having now described the nature of my said Invention and in what manner
the same is to be performed I declare that I claim.
In a sash frame the employment therewith of notches or recesses in combination
with the sash of a spring catch carrying a tongue or bolt all constructed and
operating substantially as and for the purposes set forth.
In witness whereof I the said Thomas Henry Collins have hereunto set my
hand and seal this Twentyfirst day of August in the year of our Lord One
thousand eight hundred and eighty three: