AN IMPROVED STOPPER OR CONTROLLER TO STOP AND CONTROL THE RUNNING OUT OF CHAINS. AND ROPES
Year: 1858

page_text: LETTERS PATENT to Jonathan Wardill, of Commercial Road East, in
the County of Middlesex, Engineer, for the Invention of "AN IMPROVED
STOPPER OR CONTROLLER TO STOP AND CONTROL THE RUNNING OUT OF CHAINS.
AND ROPES."
Sealed the 10th June 1859, and dated the 15th December 1858.
PROVISIONAL SPECIFICATION left by the said Jonathan Wardill at the
Office of the Commissioners of Patents, with his Petition, on the 15th.
December 1858.
I, JONATHAN WARDILL, of Commercial Road East, in the County of
Middlesex, Engineer, do hereby declare the nature of the said Invention for
"AN IMPROVED STOPPER OR CONTROLLER TO STOP AND CONTROL THE RUNNING OUT
OP CHAINS AND ROPES," to be as follows:-
My Invention consists in constructing a stopper or controller with hinged
jaws, one being hinged to each side of a bed, along which the chain or rope
runs, and which jaws, by means of a screw lever or other suitable power
applied at or near the upper part thereof, are made to press down upon, grip,
and entirely or partially stop the passage of the chain or rope.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Jonathan Wardill in the Great Seal Patent Office on the
15th June 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JONATHAN
WARDILL, of Commercial Road East, in the County of Middlesex, Engineer
send greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of December, in the year of our Lord
One thousand eight hundred and fifty-eight, in the twenty-second year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Jonathan Wardill, Her special licence that I, the said Jonathan
Wardill, my executors, administrators, and assigns, or such others as I, the
said Jonathan Wardill, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after 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 "AN IMPROVED
STOPPER OR CONTROLLER TO STOP AND CONTROL THE RUNNING OUT OF CHAINS AND
ROPES," upon the condition (amongst others) that I, the said Jonathan
Wardill, 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,
NOW KNOW YE, that I, the said Jonathan Wardill, do hereby declare
the nature of my 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, reference being had to the Drawings hereunto annexed,
that is to say:-
My Invention consists in constructing a stopper or controller with hinged
jaws, one being hinged to each side of a bed, along which the chain or rope
runs, and which jaws, by means of a screw, lever, or other suitable power
applied at or near the upper part thereof, are made to press down upon, grip,
and entirely or partially stop the passage of the chain or rope.
Figure 1 of the accompanying Drawings is a front view of a stopper or
controller, to stop and control the running out of chain and other cables con-
structed according to my Invention; Figure 2 is an end view; and Figure 3
is a plan of the same, A, A', the two jaws, which are hinged or jointed
loosely in a bed B. This bed has a groove a formed in it, as shewn, corre-
sponding to the size of the vertical links of the chain passing along it, or to
the diameter of the rope or other cable, The upper ends of the jaws A, A',
are forked, and between the forks there are tapped nuts b, b', supported upon
trunnions, which have their bearings in the side of the forks; c is a shaft, with
right and left screw threads, one of which works in the nut b, and the other

page_text: in the nut b; d is a winch handle for turning the shaft c. The jaws A, A',
bave a curve or groove formed in them at d, d', corresponding with the shape
of the horizontal links in the chain, or with the diameter of the rope, as the
case may be. On turning the winch handle d, the upper parts of the jaws
will be caused to advance towards or recede from each other, and the grooved
parts to be pressed down towards or off from the bed, according to the direction
in which the handle is turned. Thus, by turning the winch handle in the
proper direction, the chain or other cable may be allowed to run through the
controller without impediment or check, or its progress may be entirely
arrested or checked as desired.
Figure 4 is a front elevation of a modification of the controller last described.
This modification is designed for controlling the running out of ropes, but
applicable also to chains. A is a standard; B is a movable jaw, jointed to the
standard A at a. The standard A and jaw B have grooves b, b, formed in
them, corresponding to the diameter of the rope passing through them. The
jaw B is jointed to the link c and lever d, the latter of which is jointed to the
standard A. A weighted lever C, jointed to the standard A and lever d,
affords the means of regulating the distance one groove shall be from the other,
and of stopping or controlling the rope; the compression on the rope is in pro-
portion to the extent to which the weighted lever is depressed.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I claim the manufacture
of stoppers or controllers, in which jaws are made to act upon chains and
ropes by means of screws or levers, in manner herein-before described, and
illustrated in the accompanying Drawings.
In witness whereof, I, the said Jonathan Wardill, have hereunto set my
hand and seal, this Fourteenth day of June, One thousand eight
hundred and fifty-nine.
JONATHAN WARDILL. (L.S.)