Improvements in or Connected with Window Sashes and Frames.
Year: 1885

page_text: Improvements in or Connected with Window Sashes and
Frames.
I, WILLIAM EDWARD FROST, of Wisbeach House, Stanwell Crescent, Penarth, in
the County of Glamorgan, Ferryman, do hereby declare the nature of my said
invention for "IMPROVEMENTS IN OR CONNECTED WITH WINDOW SASHES AND
FRAMES," and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
This invention relates to improvements in window sashes and frames whereby
the balance weights and cords or chains connected thereto are dispensed with.
According to this invention there is fitted on both sides of the upper and lower
sashes a separate rack hinged at one end to the sash and arranged to gear with
pinions carried in bearings in the window frame. Behind each rack is a spring
the tendency of which is to force the rack, on the back of which it bears, against
the pinion with which the rack gears as aforesaid. As the sashes are moved up or .
drawn down the pinions rotate accordingly, and the sashes will remain stationary
in the positions to which they are moved. The springs behind the racks yield to
permit the ascent or descent of the sashes which are prevented by the pressure
exerted by the springs from rattling or being shaken.
The sashes may be coupled or connected together from the interior of a building
by binding pins or bolts and may then be raised or lowered as one sash instead of
independantly. Hence the window may be opened to a certain degree and the
sushes inay be then coupled together. The extent to which the window is opened
cannot then be altered without access being obtained to the binding pins or bolts.
Referring to the accompanying sheet of illustrative drawings Fig. 1 represents
a vertical section of a window frame having applied thereto the improvements
constituting my said invention. The upper sash A is shewn in section; the lower
sash B in elevation. Fig. 2 is an end view of the frame. At both sides the
sashes A and B are fitted with racks C pivotted at one end to the sashes as at a.
At the other end each rack is free. The racks are fitted to gear with the
pinions D, D' carried in bearings in the frames as shewn or otherwise conveniently
supported. The sashes A and B are recessed to each side to receive the racks C
behind which bear the springs e secured towards one end by pins g to the sashes.
The sash A is raised and lowered on the pinions D, and the sash B on the
pinions D, the said pinions rotating as the sashes are moved. The sashes remain
..

page_text: stationary at the level to which they may be moved, the springs & acting to assist
in effecting this. Rattling or shaking of the sashes in the frames is prevented.
The springs e readily yield to the force exerted to move the sashes. The sashes may
be coupled or bound together by binding pins or bolts fas seen at Fig. 3, and may
then be moved up or down as one sash. Prior to being coupled the sashes may be
moved so as to open the window to a desired. extent. At Fig. 3 the window is
shewn open below to a degree sufficient for purposes of ventilation and when the
sashes are so coupled the extent to which the window is open cannot be varied
without access being obtained to the pins f.
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
1st The use in connection with window sashes of racks such as C acted upon by
springs such as e and gearing with pinions such as D. D¹ carried in bearings in the
window frame whereby the sashes are raised and lowered into and retained in the
position to which they are moved, substantially as hereinabove described and
shown on the accompanying sheet of drawings.
2nd The use in connection with window-sashes of movable set pins such as f,
Fig. 3 of the drawings, for the purpose of coupling the sashes together, substantially
as described.