Year: 1899

page_text: I, JAMES CARPENTER, 7, Tottenham Road, Kingston, Portsmouth, Fitter, do hereby
declare the nature of this invention to be as follows:-
This invention consists of an improved stopper for steel or iron wire rope or cables,
and the same is carried out as follows.
I provide a jointed or pivoted clamp consisting of two sections, one section being
curved or shaped for the reception of or engagement upon the rope or cable, the other
section being provided with a sliding wedge shaped piece, also having a surface curved
or shaped for the reception of, or engagement upon the rope or cable, this curved or
shaped surface being provided with projections, or roughened for the purpose of
gripping the rope or cable. A locking piece is provided for the purpose of maintaining
the two sections in their closed position when the rope or cable is between them, the
locking piece being secured by means of a pin or any other suitable arrangement.
The device may be attached to the required object or position in any convenient
manner, such as through the medium of connecting chains or links.
It will be seen that upon strain being put upon the rope or cable in one direction,
the wedge shaped piece will tend to move and so jam or secure the rope or cable, but
upon strain being put in the opposite direction, the rope or cable will be free and in
the event of it being necessary to release the rope or cable, this could readily be
effected by releasing the locking piece which secures the two sections together.
Dated this 13th day of September 1899.
E. EATON,
Agent for Applicant.
I, JAMES CARPENTER, 7, Tottenham Road, Kingston, Portsmouth, Fitter, do hereby
declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
.
This invention consists of an improved stopper for steel or iron wire ropes or cables,
and the same is carried out as follows:-
I provide a jointed or pivoted clamp consisting of two sections, one section being
curved or shaped for the reception of or engagement upon the rope or cable, the other
section being provided with a sliding wedge shaped piece also having a surface curved
or shaped for the reception of or engagement upon the rope or cable, this curved or
shaped surface being provided with projections or roughened for the purpose of.
gripping the rope or cable. A locking piece is provided for the purpose of main-

page_text: taining the two sections in their closed position when the rope or cable is between
them, the locking piece being secured by means of a pin or any other suitable
arrangement. The device may be attached to the required object or position in any
convenient manner, such as through the medium of connecting chains or links.
It will be seen that upon strain being put upon the rope or cable in one direction,
the wedge shaped piece will tend to move and so jam or secure the rope or cable, but
upon strain being put in the opposite direction, the rope or cable will be free and
in the event of it being necessary to release the rope or cable, this could readily
be effected by releasing the locking piece which secures the two sections together.
For purposes of illustration, I will now refer to the annexed drawings in which I
show my invention applied to a steel cable.
Figure 1, is a side elevation of my improved stopper.
Figure 2, end view of same.
Figure 3, view shewing stopper in its open position.
Figure 4, view of wedge shewing grooved surface.
a and b are two sections which are pivoted together at c, the surface d of the
section as shewn in Figure 2, being curved or shaped to fit the configuration of the
steel rope e.
The section a carries the sliding wedge f, the surface of which is also
The two sections are
curved or shaped to fit the configuration of the steel cable e.
locked together by the pivoted clamp or locking piece which is maintained in
position by the link or catch piece g pivoted to the section b, j being a pin which is
passed through the aperture k in the clamp piece and which is connected to the
section by means of the chain l. m and n are connecting chains or links which are
for the purpose of securing the stopper to the required position. It will be seen that
upon strain being put upon the cable in the direction of the arrow 1, the wedge f will
tend to move in the direction of the arrow 2, thus gripping the steel cable e and
preventing its slipping, as the wedge shaped piece will move and jam or secure the
rope or cable between itself and the surface d on the section b, but in the event of
strain being put upon the cable in the direction of the arrow 3, the wedge f will tend
to move in the direction of the arrow 4, and so release the cable e, or in the event of
the cable being required to be released without altering the strain, it is only necessary
to remove the pinj in the aperture in the clamp or locking piece and move the
part g in the direction of the arrow 5, when the locking piece h may be moved in the
direction of the arrow 6, thus allowing the sections a and b to separate, and so release
the cable taking more or less the position shewn in Figure 3, for this purpose. It
will be seen that the bearing surface as shewn in Figure 4, upon the wedge fof-the
surface o in Figure 3, may be varied according to the configuration it is intended to
grip, as in the case of a very smooth cable, a roughened surface might be sufficient
for the purpose of gripping the cable, and the size of the wedges varied as required.
The connecting chains m & n are attached at p to the two sections respectively in
any convenient manner, such as by means of a shackle. The bolt i which pivotally
carries the clamp or locking piece h, is secured by a set screw or pin s. The bolt t
carrying the chain / is secured in the position by the pin u.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is -
1. The improved stopper for steel or iron wire ropes or cables, substantially as
described and illustrated herein and for the purpose set forth.
2. An improved stopper for steel or iron wire ropes or cables consisting of two
sections pivotally connected together, one section having a surface shaped or adapted
to grip the rope or cable, the other section being provided with a sliding wedge
having a surface also shaped or adapted to grip the rope or cable, a pivoted clamp or
locking piece for securing the two sections together, a pivoted link or catch for
engagement upon said clamp or locking piece, being secured in position by means of
a pin attached to one of the sections, through the medium of the chain, connecting
chains, links or shackles, attached to said sections for securing the stopper to the

page_text: required position; substantially as described and illustrated herein and for the purpose
set forth.
3. In stoppers for steel or iron wire rope or cables, the employment of a sliding
wedge in combination with two pivoted sections, said wedge and one of the sections
having a surface shaped or adapted for gripping a cable, strain upon the cable in
one direction causing the wedge to move and jam or hold the cable, and a strain in
the opposite direction causing the wedge to move and release the cable, substantially
as described and illustrated herein and for the purpose set forth.
Dated this 16th day of February 1900.