Improvements in Fittings to Venetian Blinds.
Year: 1895

page_text: Improvements in Fittings to Venetian Blinds.
I CHARLES GRAYSON of No. 3 Brearton Street, Bradford, in the County of York'
Gentleman 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 object of this invention is to arrange apparatus that may be readily applied
to any type of Venetian blind, and in such a manner that.-The blind may be
easily removed for cleaning or repairs. That the cords cannot be displaced.
That the drawing of the blind be facilitated. That the opening & closing of
the blind be facilitated.
In describing my invention in detail reference is made to the accompanying
sheet of drawings in which.-
Fig. 1. Elevation of part of a blind fitted with complete apparatus.
Fig. 2. Plan of first drawing pulley.
Fig. 3 Plan of second & third drawing pulleys.
Fig. 4. Section of drawing pulleys.
Fig. 5. Section of hanging or strap pulley.
Fig. 6. End elevation of strap pulley.
Fig. 7. Elevation of bracket."
Similar letters indicate similar parts where they appear.
A drum, indicated by the letter C revolves in a frame D on the spindle or
axle S.
In the frame of the first drawing pulley are two cord holes A & A¹ thro which
ordinary blind cord may be capable of passing.
The second and third pulleys having one cord hole B. It is obvious that the
number of cord holes in first pulley, and the number of pulleys required is
regulated by the size and type of blind. A drum P revolves in a frame F on
spindle T. One end of frame F is slotted X to allow the drum P to be removed.
The pulley race is indicated by R. Brackets V support the pulley race, the latter
being kept in position by a small bolt or catch capable of sliding into the
casing & secured to pulley race.
The first drawing pulley (Fig. 2) is secured to the end of pulley race as shewn
at R'. The second (Fig. 2) at R' and the third at R³.
One end of the cord passes thro hole A in first pulley over drums C in both
first & second pulleys and then thro hole B in second pulley forward to laths.
The other end of the cord passes thro hole A' over drums C in first, second and
third pulleys thro hole B in third pulley and forward to laths.
The pulley indicated by Figs. 5 & 6 is secured to under side of pulley race as
shewn at H and H. The canting lath being fixed by a strap of tape secured to
lath and passing over drum P.
It will be readily understood that when the aforementioned bolt or catch,
securing the pulley race, is released, the blind may be bodily removed.
Or if the drawing cord be released the two drums P can be taken out of the
frames and the blind with the exception of the pulley race be removed.
The drawing cord when pulled or released passes over drums as before described
and acts on the laths in the usual way.

page_text: 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 general combination of the parts forming the complete apparatus,
arranged substantially in the manner and for the purpose herein before set forth.
2. The combination of drums C and frames D'and the combination of drums P
& frame F substantially in the manner and for the purpose as hereinbefore
described.
3. The combination of brackets V and the aforementioned bolt or catch securing
pulley race, substantially in the manner and for the purpose as herein before set
forth.
: Dat
20th of Cantabr 1905
CHARLES GRAYSON.