A New or Improved Device for Locking or Gripping the Weight Cords of Hinged and like Windows.
Year: 1893

page_text: Date of Application, 30th Dec., 1893
Complete Specification Left, 1st Oct., 1894-Accepted, 3rd Nov., 1894
PROVISIONAL SPECIFICATION.
A New or Improved Device for Locking or Gripping the Weight
Cords of Hinged and like Windows.
I, ANDREW BARR, of Camphill Cottage, Bothwell, Carpenter, do hereby
declare the nature of this invention to be as follows:-
This invention relates to that class of window which is capable of being moved
or drawn inwards for cleaning purposes.
At present, with these windows, much trouble and inconvenience is caused by
the weights running down or pulling the cords off the pulleys whenever the window
sashes are removed from the beadings of the sash frame.
My invention is for a simple device for automatically locking or gripping the
cords whenever the window sashes are removed.
Under one arrangement the pulley case has a recess or nick cut or made in
it, at or near the top of the pulley, and the pulley has also one, two, or more
nicks or recesses cut in it at one side. When the window is moved inwards the
cord is caught in the recesses and prevented from travelling over the pulley.
Under another arrangement a single or double hinged plate is fitted on one of
the beads or on the sash frame at any suitable part. Nicks or recesses are cut in
the hinged flap or flaps, as the case may be, and the cord is inserted in these
recesses. Should the weight tend to run down the flaps at once lock or kink"
the cord.
Dated this 29th day of December 1802
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.
COMPLETE SPECIFICATION.
A New or Improved Device for Locking or Gripping the Weight
Cords of Hinged and like Windows.
I, ANDREW BARR, of Camphill Cottage, Bothwell, Carpenter, 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 :-
This invention relates to that class of window which is capable of being moved
or drawn inwards for cleaning purposes.
At present, with these windows, much trouble and inconvenience is caused by the
weights running down or pulling the cords off the pulleys whenever the window
sashes are removed from the beadings of the sash frame.
My invention is for a simple device for automatically locking or gripping the
cords whenever the window sashes are removed.
And in order that my said invention may be properly understood I have
hereunto appended an explanatory sheet of drawings, whereon,
Fig. 1 is a front view of a chain pulley and case.
Fig. 2 is a section on the line - Fig. 1.
Fig. 3 is a front view of a cord pulley and case.
Fig. 4 is a section on the line y-y Fig. 3.

page_text: As shown at Figs. 1 and 2 the chain pulley case a has a recess b cut in it at one
side and one of the flanges c of the pulley d is also cut away at e and f.
The cord pulley has shown at Figs. 3 and 4 has its flange c cut away in three
places e, f, g. As will be seen the cuts are of a peculiar shape being such as to
form a hook at one end and a tapered part at the other.
Any suitable number of cuts may be made in either or both flanges of the pulley.
I prefer to make either two or three cuts as shown.
With this arrangement when the window is moved inwards the weight cord or
chain, as the case may be, is or can be caught in the recesses or cuts and prevented
from travelling over the pulley.
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 consider novel and desire to claim is :
Sash pulleys made substantially as hereinbefore described with reference to the
drawings annexed.
Dated this 29th day of September 1894
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.