Improvements in Apparatus for Securing and Regulating the Tension on Window Blind Cords.
Year: 1886

page_text: TRUVIDIONAL DI MUITICATION.
Improvements in Apparatus for Securing and Regulating the
Tension on Window Blind Cords.
I, CHARLES FREDERICK GUMBY of Dugdale Terrace Stockton-on-Tees in the county
of Durham do hereby declare the nature of this Invention to be as follows :-
The object of this invention is to more effectually secure window blind cords, and
to regulate the tension upon the same, at present much inconvenience and annoyance
are caused by the unexpected slipping of such cords, whereby the blind is often caused
to be lowered, my invention completely obviates or prevents this.
I employ a weight or balance adjustment, constructed of metal or any other suitable
material which is or may be made in the form of a club (or other suitable shape) and
in the top part of which is fixed, in a suitable manner the ordinary pulley, for the
window blind cord, this cord passes from the said pulley to the pulley on the window
roller as ordinary, the said weight or balance adjustment imparts to the window blind
cord a continuously even tension, and prevents by reason of its counterbalancing
influence the said cord from slipping or becoming detached.
Dated this 14th day of September 1886.
JOHN E. WALSH,
30, East Parade, Leeds,
Agent for the Applicant.

page_text: Improvements in Apparatus for Securing and Regulating the
Tension on Window Blind Cords.
I CHARLES FREDERICK GUMBY of Dugdale Terrace Stockton-on-Tees in the County
of Durham Wine & Spirit Merchant, 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:-
The improvements consist of a weighted pulley (the weight arranged according to
the size of blind) the pulley has a moveable side arm to admit endless cords. Above
the weighted pulley an eyelet is fixed to the window casing through which the cord
works and secures the pulley to its place: Immediately behind the pulley of the
Blind Roller a Hinged Bracket is fixed which secures the blind cord to the Blind
Roller and the Roller to its bearings.
On referring to accompanying drawings the advantages of the said invention will
be clearly seen. Fig. 1 is a side elevation of a Window Frame and Blind. Fig. 2 is
a front elevation of Window. Weight A which is fitted with a small Pulley B is hung
on Blind Cord D. weight A being of sufficient weight to overcome weight of Blind
and Lath C and C₁ thus keeps Blind Cord D which passes over Roller Pulley E in
proper tension, and preventing Blind C from running down without being moved by
hand, and allowing Cord D full freedom of action. On pin F is loosely hung a small
side arm G which opens from stud H and allows an endless Blind Cord to be used as
well as the ordinary spliced cord. When cord D is put in position, side arm G is
droped on pin H as shown in dotted lines on Fig. 1.
Double eyelet J is screwed into Window Frame as near as convenient to Pulley B,
thus keeps weight A and cord D close to Window Frame and prevents weight A from
swinging out of position. Bracket K is fixed on Window Frame immediately behind
Blind Roller Pulley E and is fitted with a moveable arm L which when in position as
shown on Fig. 1, prevents Cord D from leaving Blind Roller Pulley E and secures
Blind Roller to its bearings.
When necessary to remove Cord D, arm L is moved to the position as shown on
Fig. 2.
I do not confine myself to any particular design or shape of weight, or any
particular material they may be made of.
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,
That the Pulley admits an endless Cord and the Bracket secures the Cord and
Roller, and that these are entirely new Inventions and decided advantages.