Improvements in Rack Pulleys for Window Blinds.
Year: 1892

page_text: Date of Application, 23rd Mar., 1892
Complete Specification Left, 11th Nov., 1892-Accepted, 31st Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in Rack Pulleys for Window Blinds.
I HARRY ERITH BAKER of 52 Lyndhurst Road, Peckham in the County of
Surrey, Schoolmaster do hereby declare the nature of this invention (a commu-
nication to me from abroad by George Frederick Baker of 56 New Street, Jersey,
Channel Islands, Undertaker) to be as follows:-
My invention relates to a new or improved device for the cords of window blinds,
and consists of a metal frame, preferably of rectangular shape, a portion of which
is cut out on one side near the lower end of, the said frame for the insertion of the
cord, this end being rounded inside.
A pulley is mounted on a transverse axis secured within both sides of the frame
and a weight is suspended upon the lower rounded end of the latter. The blind
cord is passed around the pulley the weight holding the same taut.
Dated this 23rd day of March 1892.
HUGHES, ELI & HUGHES,
76, Chancery Lane, W.C., Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Rack Pulleys for Window Blinds.
I, HARRY ERITH BAKER of 52, Lyndhurst Road, Peckham in the County of
Surrey, Schoolmaster, do hereby declare the nature of this invention (a commu-
nication to me from abroad by George Frederick Baker of 56, New Street, Jersey,
Channel Islands Undertaker) and in what manner the same is to be performed to
be particularly described and ascertained in and by the following statement:-
My invention relates to improvements in rack pulleys for window blinds and
consists of a new or improved device for the cords of window blinds whereby the
same may be self adjusting. According to the varying conditions of the atmosphere
a blind cord will stretch or contract; again by continual use the tendency of the
cord is to stretch.
I provide against the variations in length occasioned by these causes. It has
been the custom to pass the lower end of the blind cord around an adjustable wheel
or pulley contained in a rack having a set screw which has to be manipulated by
hand as required.
Now by this my invention the cords of window blinds are automatically adjusted
according as any variation in their length occurs. To attain this end I mount a
wheel or pulley in a metal frame, preferably of a rectangular shape, a portion of
which is cut out on one side near the lower end of the said frame for the insertion
of the cord this end being rounded on the inside.
To the frame carrying the aforesaid pulley I attach or suspend a weight. The
blind cord is passed around the pulley and the weight will always hold same taut.
And in order that this my invention may be fully understood and readily carried
into effect I will now proceed to describe same with reference to the accompanying
drawings in which similar letters of reference refer to like parts in each of the
figures.
Fig. 1 is a front elevation of my improved device shewn attached to the cord of
a window blind. Fig. 2. is a side elevation of the same and Fig. 3. shews the
frame carrying the pulley and the suspended weight detached therefrom thereby
illustrating a ready and simple means of constructing same.
CO

page_text: a is the wheel or pulley carried in the rectangular frame b. At the lower end
of one side of the frame is cut out and through the opening thus caused the cord c
of the window blind d may be inserted. One side of the frame 6 I extend as shewn
at e and this extension e passes through a weight fa screwed nut g being the means
of adjusting same and holding in position.
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.
In blind pulleys the rectangular frame carrying the wheel or pulley a and
formed with extension c to which is attached the weight d substantially as and for
the purpous hereinbefor set forth and described with reference to the accompanying
drawings.
Dated this 11th day of November 1899
HUGHES, ELI & HUGHES,
76, Chancery Lane, London, W.C., Agents for the Applicant.