Improvements in or relating to Sash Windows.
Year: 1894

page_text: Date of Application, 26th Feb., 1894-Accepted, 31st Mar., 1894
COMPLETE SPECIFICATION.
Improvements in or relating to Sash Windows.
I, ALBERT COPE, of Penarth, near Cardiff, in the County of Glamorgan,
Joiner and Builder, 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 has for its object to dispense with the use of counterpoise weights
for retaining window sashes in position and for this purpose I provide a spring
actuated holder of such construction that it engages with the window sash sufficiently
to hold it in any position to which it may be adjusted but not to prevent it being
easily raised or lowered whilst it causes an alarm when in motion.
For the purposes of my invention 1 secure in a recess in the window frame style,
at each side of the sash a frame of metal or other material. In each of these
frames I pivot one end of a pawl of such a length that its opposite free end projects
beyond the face of the style and is so retained by a spring, one end of which is
pivoted or otherwise secured in the metal frame whilst its opposite end presses on
the underside of said pawl.
A rack is secured to the vertical edges of the window sash and with the teeth of
these the free ends of the pawls are caused to engage by the action of the springs.
The shape of the teeth of the racks and the ends of the pawls is, however, such
that when pressure is applied to the window sash to raise or lower it they are
temporarily thrown out of gear.
And in order that my invention may be more fully understood and carried into
practice I will now proceed to describe the same with reference to the accompanying
drawings, of which Fig. 1 is a part sectional elevation of a sash window with my
improved clip or holder applied, Fig. 2 an enlarged part sectional elevation of the
holder, and Figs. 3 and 4 a front and end elevation respectively of an enlarged
portion of the saslı frame.
A frame a of metal or other material is secured in a recess in the window frame
style opposite the vertical edges of each of the sashes c. In each of these
metal frames is pivoted a pawl d of such a length and so held in position by the
spring e, secured at one end to the frame a, that its free end extends beyond the
face of the style and engages with the teeth of a rack 9 preferably let into a
groove in each of the vertical edges of the sashes c.
The teeth of the racks g and the ends d' of the pawls d are preferably of the
shape shown so that by the movement of the sashes they are disengaged, but
immediately come into engagement again when the sash has been adjusted.
Notches are formed in the sashes leading into the grooves in the edges
thereof in which the racks are secured so facilitating the insertions or removal of
the sashes.
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 :-
1. The improved holder for sash windows, substantially as described and
llustrated in the accompanwing drawings

page_text: 2. The pawls d arranged, constructed and operated, substantially as and for the
purpose described and illustrated in the accompanying drawings.
Dated this 24th day of February 1894.
CASTLE SMITH,
Invention" Office, 54, Fleet Street, London, E.C.,
Agent for the Applicant.