operating Cords of Window Blinds.
Year: 1887

page_text: Date of Application, 30th June, 1887
Complete Left, 28th Mar., 1888
Complete Accepted, 4th May, 1888
operating Cords of Window Blinds.
We, JOHN BENJAMIN MOORHOUSE of Skipton-in-Craven, Yorkshire, Ironmonger
and ARTHUR MAURICE MIDGLEY of Sutton Mill near Crosshills in the same County
Mechanic do hereby declare the nature of this invention to be as follows:-
It consists of improvements in racks used in connection with the endless-operating
cords of window blinds, whereby the tension of said cords may be more easily and
appropriately adjusted. This is attained by forming the bearings and the rack bar
which carries the bowl for the cord so that by a suitably shaped excentric being
mounted in said bearings said rack bar may be easily moved in one direction but
prevented from doing so in the opposite direction, until said excentric is lifted or
inoved to release same.
If desired the surfaces of the excentric and rack bar that work in connection
with each other may be fluted, grooved or otherwise roughened provided a greater
amount of friction in connection with same is found necessary.
1002
SAMUEL HEY,
Agent for Applicants.

page_text: We JOHN BENJAMIN MOORHOUSE of Skipton-in-Craven, Yorkshire, Ironmonger,
and ARTHUR MAURICE MIDGLEY of Sutton Mill near Crosshills in the same County,
Mechanic, 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, that is to say :-
It consists of improvements in racks in connection with the endless-operating cords
of window blinds, whereby the tension of said cords may be more easily and
appropriately adjusted.
In order that our said invention may be more readily understood we have hereunto
appended a sheet of drawings illustrative thereof wherein figs. 1 and 2 are front and
side elevations, respectively, shewing said rack. Figs. 3 and 4 are sectional views of
a portion of fig. 1.
a
The object of this invention is attained by mounting the bearings a in any of the
well known parts and in the usual well known manner, and by forming said bearings
and the rack bar b (on said bar 6 being mounted the bowl c around which passes the
endless operating cord d) so that by a suitably shaped eccentric e being mounted in
said bearings a said rack bar may be allowed to move freely in the direction
indicated by arrow f, but prevented from moving in the opposite direction on account
of said eccentric e binding same against the back part of the bearings a as is shewn
by fig. 3 by which means any desired tension of the cord d may be maintained, the
eccentric e being required to be moved (as by means of the knob g) somewhat into
the position shown by fig. 4, in order to free said bar b. so that it may be moved for
relieving the cord d as is from time to time found necessary.
A suitable portion of the bar and the eccentric e at the parts where the one
operates in connection with the other, may be serrated or fluted as is shewn by
figs. 2, 3 and 4, in order that the one may be more certainly held by the other as will
be well understood.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
1. The bar 6 having the bowl e mounted on its outer end, the eccentric e and the

page_text: bearings a in combination, the whole being arranged and constructed to operato
substantially as specified.
2. The bar b having a portion serrated as shewn and having a bowl c mounted on
its outer end, the eccentric e with a portion of its outer edge serrated as illustrated,
and the bearings a in combination the same being arranged to operato substantially as
specified.