Wire Ropes Used for Hauling, Hoisting, and other Purposes.
Year: 1884

page_text: Wire Ropes Used for Hauling, Hoisting, and other Purposes.
I WILLIAM RIGBY of 5 Maria Street Bute Town, Cardiff, Wire Rope Machinist
do hereby declare the nature of my said Invention for AN IMPROVED BLOCK, DEAD
EYE, OR APPARATUS FOR ATTACHMENT OF WIRE ROPES USED FOR HAULING,
HOISTING AND OTHER PURPOSES to be as follows:-
The object of this Invention is:-to construct a block such as a shackle, a
hauling, a hoisting, a dead-eye, or other kind of block to which the end of a rope
is secured, in such a manner that two turns of the rope can be wrapped around it,
the turns being kept distinct from one another at all parts of the block. The rope
is crossed at one part of the block's circumference to obtain resistance and reduce
the danger of the rope being drawn, should the method of securing the end of the
rope be faulty such as from a bad or imperfect seizing, splicing, clamping, or
clipping connection.
For the purpose of my Invention I form two distinct annular grooves within the
periphery of a block or dead-eye. At one part of the periphery I remove a portion
of the partition formed between the two grooves and I recess that portion
diagonally to the same depth as the grooves into which the diagonally formed
recess dies so as to be part of same.
The rope is bent and then wrapped around the block within one groove and is
then crossed over into the other groove in which it is also wrapped and then bent
to lie alongside the portion of the rope at the first mentioned bend where it can be
secured by seizing, splicing, clamping, clipping or other method of fastening.
The Invention is specially intended for wire rope such as that used with cages,
tubs, bowks, and vessels for raising minerals, earth, and other material but it is
also applicable for other lowering and raising appliances, and also for dead-eyes
and other blocks to which a rope has to be permanently or securely affixed.
If the block be a shackle or similar block I purpose forming the shackle bolt hole
below or out of the centre of the block in order to ensure a direct strain upon the
rope from about mid-distance of the diagonal recess.

page_text: An improved Block, Dead-eye, or Apparatus for Attachment of
Wire Ropes Used for Hauling, Hoisting, and other Purposes.
I WILLIAM RIGBY of 5 Maria Street, Bute Town, Cardiff, Wire Rope Machinist,
do hereby declare the nature of this invention and in what manner the saine is to
be performed to be particularly described and ascertained in and by the following
statement:-
The object of this invention is, to construct a block, such as a shackle, a hauling,
a hoisting, a dead-eye, or other kind of block to which the end of a rope is secured
in such a manner that two turns of the rope can be wrapped around it, the turns
being kept distinct from one another. The rope is crossed at one part of the blocks
circumference and the double turn gives increased strength to that part which is
most liable to damage and where it is strained by being wrapped round the block
of necessarilly small diameter. The bolt hole which is below the centre gives
increased resistance and reduces the danger of the rope being drawn should the
method of securing the end of the rope be faulty, such as from a bad or imperfect
seizing, splicing, clamping, or clipping connection; it also tends to prevent the
block turning should any unequal strain be put upon the rope. The block may
be solid like ordinary blocks and dead-eyes, or it may be hollow to reduce the
weight.
For the purpose of my invention, which will be understood by reference to the
annexed drawings, I form two distinct annular grooves A, B, Figure 1, within the
periphery of a block or dead-eye C. At one part of the periphery I remove a
portion of the partition E formed between the two grooves A, B, and I recoss that
portion diagonally, as at F, to the same depth as the grooves, as shown at Figure 2,
into which the diagonally formed recess dies so as to be part of same.
The rope G is bent and then wrapped around the block within one groove and
is then crossed over as seen at Figuro 3 into the other groove into which it is also
wrapped and then bent to lie alongside but preferably not in contact with that
portion of the rope at the first mentioned bend the rope being kept apart by pieces
of metal which are fitted between the two portions of rope where the clips H are
arranged, if clips be used as at Figure 3.
The end of the rope may be secured by seizing or by splicing as seen at Figure 4
but it may be secured by clamping or by other method of fastening.
The invention is specially intended for wire rope such as that used with cages,
tubs bowks and vessels for raising mineral, earth and other material but it is also
applicable for other lowering and raising appliances and also for dead-eyes and
other blocks to which a rope bas to be permanently or securely affixed.
If the block be a shackle or similar block I purpose forming the shackle bolt
hole I below or out of the centre of the block in order to ensure a direct strain
upon the rope from about mid-distance of the diagonal recess.
The block may be solid like an ordinary dead-eye as seen at Figure 2 or it may
be hollow as at Figure 5 to lighten its weight.
Various methods of reducing its weight may be adopted two of which are shown
at Figures 3 and 5.,

page_text: The clipping appliance may be in the form shown at Figure 3 for clipping the
rope at different parts but said clipping device may be of any length or form and
may reach close to the block or even partially round the same and if necessary the
space or glut in the rope between the block and the clipping device may be filled
up by a glut piece which may be separate from or in a piece with the block such
as I show at J Figure 4 the rope in this view being spliced.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is
The improved block, dead-eye or apparatus shown at Figures 1 and 2 having a
double groove connected by a diagonal recess for the cross over part of the rope to
engage in, said rope by a double wrapping being kept apart as and for the purpose
or purposes set forth.