Improvements in the Fittings for Blinds.
Year: 1889

page_text: COMPLETE SPECIFICATION.
Improvements in the Fittings for Blinds.
I, GEORGE SAMUEL MARSHALL of 378 Monument Road, Birmingham in the County
of Warwick, Brassfounder, do hereby declare the nature of my said invention
and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement :—
My invention has for its object improvements in the fittings for blinds, and relates
to the ends, or sheaves of the rollers and the cord holder for roller blinds, but which
cord holder is also applicable to venetian and other blinds where cords are required
to be quickly fastened. By my invention I avoid the great disadvantage of the
liability of the rollers cutting the cord when they are revolving which is so often now
the case with the present blind furniture and at the same time the sheaves have a
much more substantial appearance, and they are also much stronger. The Cord holder
is stamped out of one piece of metal unless it is cast, and I prefer the stamping for
lightness and cheapness, and when corrugated as hereafter to be explained they are
very strong and substantial. In order that my invention may be clearly understood,
and more easily carried into practice I have appended hereunto a double sized sheet of
drawings upon which I have illustrated the same.
Figure 1. shews a blind A hung upon a roller with my new sheaves M and N and
my cord holder B connected therewith.
Figures 2. are a group of three figures shewing the cord holder B the centre one is
a perspective view shewing the cord C twisted round the holder as it would be used
in practice. The right hand figure is a vertical section of the holder and the left hand
figure is a front view which shews the vertical corrugations for stiffening the holder,
so that it may be stamped out of thinner metal.
Figure 3 is a front elevation of the cord sheave.
Figure 4 is a sectional elevation of the cord sheave.
Figure 5. is a plan of the side m² of the cord sheave.
Figure 6. is a sectional elevation of the left hand single sheaf N.
Figure 7 is a front elevation of the bracket for carrying the double sheaf M.
Figure 8. is a side elevation of the bracket as shewn by Figure 7.
Figure 9 is an inverted plan of the bracket shewn by Figure 7.
The
My new sheaves whether it be the double one M or the single one N are made from
discs stamped out of sheet metal so as to have the edges turned round as shewn by
m³, m or n². For the double sheave I use two such discs m¹ and m2 with their
rounded edges m³ and m* and their bosses me and m² to carry the short piece of brass
or other tubing m³ into which the bosses fit this tubing forming the barrel for the
cord. Through each of the bosses me and m² 1 punch or make a square hole as seen
in dotted lines at Fig. 5 which receive the square neck m¹³ of the pin or pivot M
upon the end of which the socket m³ fits, being provided with a square hole for the
purpose when the end of the square neck m³ is rivetted over to secure the whole firmly
together in one piece. The holes m10 and m" receive the end of the cord c.
brackets for carrying the double sheave end M is shewn by figures 7. 8 and 9 and
may be either solid from one piece of metal or may be in two parts, as shewn, the
two parts, being secured together by the ferrule e leaving the hole e for the pin M
to turn therein. This ferrule allows the upper part of the bracket to be turned to
any desired angle, so as to fit against the wood work vertically, horizontally or at any
angle. The bottom part of the bracket et has the slot hole e in which the friction
ferrule e slides easily so that when the cord runs through this rounded ferrule, the
cord cannot possibly cut, and the action of the working of the cord over these
rounded parts is most easy rendering it quite impossible for the cord to be cut. I
may of course use brackets without the joints e and indeed the left bracket for
sheave M does not require the joint as it can be fixed in any direction without it,

page_text: The cord holder B is composed of a single stamped plate the ear b² being formed
from the metal pressed out of the hole b'. It is secured by the screws 63 and bends
out sufficiently to give ample room for one two or more cords to be fastened behind
the book part 4, 65, 66 the cord hanging under the shoulder 67 which nips it and the
cord is so wedged and jammed by the peculiar formation and arrangement as to be
most secure against almost any strain. The corrugations serve to stiffen the holder
when thin metal is used. Though I have described the invention whether the sheaves,
brackets, or holder as made from stamped metal which I prefer and would and
would generally be the case, I may otherwise construct them from castings &c.
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 :-
First. The improvements for the fittings for blinds, substantially as herein set
forth and as shewn upon the drawings.
Second. The improved mode of constructing the sheaves with their rounded edges
substantially as and for the purpose herein set forth.
Third. The improved bracket having the joints e³ substantially as and for the
purpose herein set forth.
Fourth. The improved bracket whether jointed or solid having the slot e³ and
ferrule e for the purpose herein set forth.
Fifth. The cord holder B formed as herein set forth and shewn so as to grip one or
more cords at once.
Dated this 18th day of May 1889.
GEORGE
BARKER,
77, Colmore Row, Birmingham, Agent for Applicant.