IMPROVEMENTS IN OR CONNECTED WITH PULLEYS FOR BLIND CORDS IN SUBSTITUTION FOR THE ORDINARY PULLEY RACK
Year: 1879

page_text: LETTERS PATENT to Samuel Mortimer Orriss, of Cobbold Street, St. Margaret's,
Ipswich, in the County of Suffolk, for the Invention of "IMPROVEMENTS IN
OR CONNECTED WITH PULLEYS FOR BLIND CORDS IN SUBSTITUTION FOR THE
ORDINARY PULLEY RACK."
Sealed the 5th September 1879, and dated the 14th March 1879.
PROVISIONAL SPECIFICATION left by the said Samuel Mortimer Orriss at
the Office of the Commissioners of Patents on the 14th March 1879.
SAMUEL MORTIMER ORRISS, of Cobbold Street, St. Margaret's, Ipswich, in the
County of Suffolk. "IMPROVEMENTS IN OR CONNECTED WITH PULLEYS FOR
BLIND CORDS IN SUBSTITUTION FOR THE ORDINARY PULLEY RACK."
The Invention has for its object improvements in or connected with pulleys for
blind cords in substitution for the ordinary pulley rack, whereby I obtain facility
of adjustment combined with strength, simplicity of construction, and cheapness of
production.
For this purpose I mount on a rod or bar of any suitable section a slide which is
capable of being fixed in any desired position thereon for adjustment to the length
of the blind cord by means of a screw, on which is mounted the pulley around which
the blind cord passes.
The rod or bar may be fixed to a back plate, which is screwed or nailed in any
desired position, or the rod or bar may itself be fastened in the desired position, and
the back plate in such case dispensed with.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Samuel Mortimer Orriss in the Great Seal Patent Office on the 13th
September 1879.
SAMUEL MORTIMER ORRISS, of Cobbold Street, St. Margaret's, Ipswich, in the
County of Suffolk. "IMPROVEMENTS IN OR CONNECTED WITH PULLEYS FOR
BLIND CORDS IN SUBSTITUTION FOR THE ORDINARY PULLEY RACK."
The Invention has for its object improvements in or connected with pulleys for
blind cords in substitution for the ordinary pulley rack, whereby I obtain facility

page_text: of adjustment combined with strength, simplicity of construction, and cheapness of
production.
For this purpose I mount on a rod or bar of any suitable section a slide which is
capable of being fixed in any desired position thereon for adjustment to the length
of the blind cord by means of a screw, on which is mounted the pulley around which
the blind cord passes.
1+ 1 i
The rod or bar may be fixed to a back plate, which is screwed or nailed in any
desired position, or the rod or bar. may itself be fastened in the desired position, and
the back plate in such case dispensed with.
And in order that my said Invention may be more clearly understood and readily
carried into effect, I will proceed, aided by the accompanying Drawings, more fully
to describe the come
Figure 1 is a front view, and Figure 2 a side view of a blind pulley showing my
improvements applied thereto; Figure 3 is a front view, and Figure 4 is a side
view, showing a slight modification; and Figure 5 is a sectional view of parts
thereof separately.
a is a rod or bar, which may be of any desired section, but for cheapness of
manufacture it is made of circular section. On this rod or bar a I mount a slide b,
which may be fixed in any desired position thereon for adjustment to the length
of the blind cord by means of a screw c, on. which is mounted the pulley d around
which the blind cord passes.
The screw c is screwed into a hole tapped in the slide b, and fixes such slide in
any desired position by binding against the rod or bar a.
The barrel or stem of the screw c is threaded for only a short portion of its length,
and is smooth for the remainder up to the head c¹, as shown at Figure 5, in order to
form a suitable bearing for the pulley d, and if desired a loose collar or bush may
be mounted on the stem of the screw to ease the motion of the pulley d.
As shown at Figures 1 and 2 the rod or bar may be fixed to a back plate e, which
is screwed or nailed in any desired position; or such rod or bar a may have enlarge-
ments at the ends a³, as shown at Figures 3 and 4, and be fastened in position by
means of screws or nails passing through holes in such enlargements. In this latter
case I dispense with the back plate e.
If desired, instead of bending the ends of the rod or bar a as shown, a straight
rod or bar may be employed, in which case it can be fixed in projections formed on
or fixed to the back plate e.
•
Having thus described the nature of my said Invention, and the mode in which
I carry the same into effect, I would have it understood that what I claim is, the
improvements in or connected with pulleys for blind cords in substitution for the
ordinary pulley rack, substantially as herein shown and described.
In witness whereof, I, the said Samuel Mortimer Orriss, have hereunto set my
hand and seal, this Tenth day of September, in the year of our Lord One
thousand eight hundred and seventy nine.
SAMUEL MORTIMER ORRISS. (L.S.)