IXPROVE- MENTS IN APPARATUS POR HAULING OR WINDING ROPER
Year: 1867

page_text: LETTERS PATENT to James Grafton Jones, of the Blaina Iron Works, near
Newport, in the County of Monmouth, for the Invention of "IXPROVE-
MENTS IN APPARATUS POR HAULING OR WINDING ROPER."
Sealed the 31st March 1868, and dated the 1st October 1867.
PROVISIONAL SPECIFICATION left by the said James Grafton Jones
at the Office of the Commissioners of Patents, with his Petition, on the
1st October 1867.
I, JAMES GRAFTON JONES, of the Blaina Iron Works, near Newport; in the
County of Monmouth, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN APPARATUS FOR HAULING OR WINDING ROPES," to be as
follows:-
This Invention has for its object improvements in apparatus for hauling or
winding ropes. I construct a pulley or drum with nipping instruments to
hold a rope securely when it is passed only partly around it, in the following
manner: I form the pulley or drum with a groove passing around its
periphery; the groove has inclined sides, and so becomes narrower as it pro-
ceeds inwards towards the centre of the pulley or drum. Against the sides
of this groove sliding pieces are arranged; there are a number of them around
the circumference of the pulley or drum, and each pair of sliding pieces is
fitted with a spring pressing them outwards from the centro of the pulley or

page_text: drum. Lips on the sides of the groove limit the outward movement of the
slides and keep them in their places, and suitable stops in the groove prevent
them moving laterally. When a rope is drawn tightly around the pulley or
drum it bears against the slides and presses them inwards, overcoming their
springs until the incline of the groove causes the slides to tightly nip the rope,
and as the pulley or drum revolves it hauls on the rope and winds it forward.
In this manner a nipping pulley or drum may be made very inexpensively.
The pulley or drum is cast in one piece, and the slides are also cast to form,
and the parts require but little finishing after they leave the moulds; or the
sliding pieces may be easily and cheaply made in wood, and for some purposes
wood is very suitable.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James Grafton Jones in the Great Seal Patent Office on the
1st April 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
GRAFTON JONES, of the Blaina Iron Works, near Newport, in the County of
Monmouth, send greeting...
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the First day of October, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirty-first year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said James Grafton Jones, Her special licence that I, the said
James Grafton Jones, my executors, administrators, and assigns, or such
others as I, the said James Grafton Jones, my executors, administrators,
and assigns, should at any time agree with, and no others, from time to time
and at all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United Kingdom of
Great Britain and Ireland, the Channel Islands, and Isle of Man, an Invention
for "IMPROVEMENTS IN APPARATUS FOR HAULING OR WINDING ROPES," upon the
condition (amongst others) that I, the said James Grafton Jones, my executors
or administrators, by an instrument in writing under my, or their, or one of
their hands and seals, should particularly describe and ascertain the nature
of the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.

page_text: NOW KNOW YE, that I, the said James Grafton Jones, do hereby declare
the nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say :-
This Invention has for its object improvements in apparatus for hauling
or winding ropes. I construct a pulley or drum with nipping instruments to
hold a rope securely when it is passed only partly around it in the following
manner-I form the pulley or drum with a groove passing around its
periphery, the groove has inclined sides and so becomes narrower as it
proceeds inwards towards the centre of the pulley or drum. Against the
sides of this groove sliding pieces are arranged, there are a number of
them around the circumference of the pulley or drum, and each pair of
sliding pieces is fitted with a spring pressing them outwards from the centre
of the pulley or drum. Lips on the sides of the groove limit the outward
movement of the slides, and keep them in their places, and suitable stops in
the groove prevent them moving laterally. When a rope is drawn tightly
around the pulley or drum it bears against the slides and presses.them
inwards, overcoming their springs, until the incline of the groove causes the
slides to tightly nip the rope, and as the pulley or drum revolves it hauls on
the rope and winds it forward.. In this manner a nipping pulley or drum
may be made very inexpensively. The pulley or drum is cast in one piece and
the slides also are cast to form and' the parts require but little finishing after
they leave the moulds, or the sliding pieces may be easily and cheaply made
in wood, and for some purposes wood is very suitable.
Having thus described the nature of my Invention I will proceed to
describe more fully the manner of performing the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows an edge view of a part of the periphery of a clip pulley
constructed as above described; Figure 2 shows a cross section of the same;
and Figure 3 shows a section taken through the line A, B, Figure 2.
In these Figures a, a, are the inclined sides of the groove passing around
the periphery of the pulley or drum; b, b, are the sliding pieces which slide
against the sides a; these sliding pieces are arranged in pairs of equal length
all around the periphery of the drum, and each pair is pressed outwards
from the centre of the drum by a spring c, the outward movement of the
sliding pieces 6 being limited by the overhanging lips a'; a³, a', are radial
stops projecting out from the sides of the groove a, and passing between the
ends of the several pairs of sliding pieces b, these stops prevent the sliding

page_text: pieces from shifting in their places around the periphery of the grooved
pulley or drum. The backs of the several sliding pieces bare formed to fit
between the stops, the sides of the stops being made to fit closely to the
parallel ends of the sliding pieces bas seen at Figures 1 and 3. The radial
stops a projecting inwards from the sides of the groove also keep the springs
c in their places so that each spring is always below the centre or nearly so
of each pair of sliding pieces b. The inner sides of the sliding pieces, at the
point where they are to nip the rope between them, are grooved as shown at
Figure 2, so as to fit closely to the sides of the rope marked d. In the
Drawing the sliding pieces 6 are shown to be of metal, but as before
stated, sliding pieces of wood may in many cases be very advantageously
employed. The pieces b may be inserted in their places by placing together
the two pieces which are to be opposite one another and pressing them
downwards towards the centre of the wheel so as to compress their spring c;
the outer ends of the pieces 6 are afterwards pressed apart from one another,
and the spring is allowed to press the pieces outward away from the centre
of the wheel; the outer ends of the pieces b then pass under the lips a¹.
In witness whereof, I, the said James Grafton Jones, have hereunto
set my hand and seal, this Twenty-eighth day of March, in the year
of our Lord One thousand eight hundred and sixty-eight.
T CRAFTON IONES
J. GRAFTON JONES. (..)