Improved Rope-cap for Wire Ropes, specially designed for Wire... Ropes known as Lock Coil
Year: 1890

page_text: Date of Application, 11th Oct., 1890
Complete Specification Left, 16th May, 1891-Accepted, 27th June, 1891
PROVISIONAL SPECIFICATION.
Improved Rope-cap for Wire Ropes, specially designed for Wire...
Ropes known as Lock Coil."
F
DAVID REES 18 Thomas' Place Ynyshir Pontypridd Glamorgan Blacksmith
do hereby declare the nature of this invention to be as follows:-
The improvement consists in making the body of the cap, in two distinct parts,
as shown in the accompanying drawings marked A, A' Figs. I and II.
The two
extremities of the cap only are shown in drawing.
Fig. shows a longitudinal section of working end of cap; and Fig. I a¨
longitudinal 'section of the tail end of cap. In Fig. 1A and A' are the two
halves of the cap, drawn together at one end by the screwbolt and nut 'marked E;
upon A and at the juncture of A and A¹ a small joggle marked (a) is casted and
fits into a recess in A. This will prevent one part sliding over another when thic
load is attached; the other end is drawn together by means of such rings as
shown in drawing marked C in which there lies no novelty.
The bolt marked F in drawing is attached by a chain to the load.
The body of the cap is largely swelled at its greatest diameter, near the parts
where the letters A and A' are placed in the drawing in order to form a large
internal cavity shown at G G on drawing, the object being, that the rope after
being served, and the rings and screwbolt tightened well home; when the load is
attached, the rope shall not be drawn any distance into the cap, or in fact not move
at all.
..
.
In Fig. is given a longitudinal section of the tail end of cap. R shows a
portion of the rope. D D is an elastic tube which entirely surrounds the rope at
the extremity of the cap and enters the cap to a distance equal to that of the top
ring from the end of the cap, and extends outside beyond the cap a like distance.
The tube acts as a cushion for the rope, when swaying or vibrating about the end
of the cap, it also prevents water and gritty substances from falling into the cap,
or otherwise entering it.
Dadantation 1000
COMPLETE SPECIFICATION.
Improved Rope-cap for Wire Ropes, specially, designed.for., Wire
Ropes known as "Lock Coll."
DAVID REES 18 Thomas' Place Ynishir near Pontypridd Glamorganshire,
Blacksmith, 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:-
The object of my invention is to provide a rope-cap which shall be specially
adapted to wire-ropes of the class known as "lock-coil strandless wire-ropes," and
shall be equally applicable to ordinary stranded wire-ropes.
In the following statements, the rope-cap is referred to as the cap, and the wire-
rope as rope.
A special feature, in my invention, is to provide facilities for inspection of the
served part of the rope, which part is enclosed within the cap; the construction of..
the cap being such that it may be drawn apart, leaving the served end of the rope
intact the usual procedure with ordinary caps being to cut off the end of the
rope and serve it anew, thus requiring a fresh capping of the rope.

page_text: I also surround the rope at the point where it emerges from the cap, with a thick
india-rubber tube, the objects of which are:-(Firstly) to act as a cushion for the
rope when it sways or vibrates about the tail end of the cap; this tube will reduce
the injury to the rope, which injury must occur more or less when the rope is
subjected to such vibration. (Secondly) to prevent water and gritty material from
falling into the cap, or otherwise entering it, such substances as bits of coal, stones,
and such that are hoisted or lowered in mineshafts by means of ropes.
And in order that my invention may be better understood, I here append one
sheet of drawings, marked with letters of reference, the same letters in the various
figures indicating the same or like parts.
The drawings here referred to are those left with my "Provisional Specification,"
they consist of a longitudinal section of the two ends of the cap, the middle part of
the cap is not included, it being like that of many usual forms now in use, it
contains no novel feature.
The two halves of the body of the cap, to be further described, and which are
marked A A' in drawings, are to be cast from crucible cast steel.
The drawbolt marked Fin Fig. I, and the screwbolt and nut marked E in Fig. I,
are to be made of wrought iron, the tube-rings marked C C in both Figs. I and II
to be of wrought iron, or cast in crucible steel.
The external appearance of the cap is similar to an ordinary tube-cap, slightly
tapering, and divided longitudinally into two similar halves, and held together by
means of three or four tube-rings at about equal distances apart, the bottom or
lowest tube-ring is shown in section Fig. I, and marked C C, and part of the topmost
ring is shown in section Fig. II, and marked C C.
The two sides of the cap marked A and A in drawings Figs. I and II form
a complete tube, closed at the bottom and largely swelled near its base, as
shown at the parts on drawing Fig. I where the letters A and A' are situated, this
is done in order to form a large internal cavity marked G Fig. I to receive the
bulk of the serving on the end of the rope, so that when the two halves of the cap
are drawn together by means of the screwbolt and nut marked E in Fig. I and the
aforementioned tube-rings driven well home, the rope shall not be drawn any
distance into the cap, or in fact not stirred at all, when the load is attached to the
bolt marked in drawing Fig. I.
At the base of the cap where the two halves A and A' meet, a small joggle or
lug marked (a) in drawing Fig. I shall be cast on one half, and shall fit into
a corresponding recess in the other half, or a hole may be drilled in each, and an
iron or steel dowel inserted before tightening up, this will introduce a shear
to prevent one half gliding past the other.
In Fig. I is given a longitudinal section of the tail end of cap, and shows a
portion of the rope marked R included.
The rope is surrounded with the aforementioned india-rubber tube which is
marked DD in drawing, this tube, as shown in drawing is sufficiently long to enter
some distance within the top ring CC and to extend beyond the cap a length.of
three or four inches; the objects of this india-rubber tube has been previously
explained; a small bead is cast on the inside of cap as shown in drawing and
marked (b, b,) this shall fit into a grove made in the india-rubber tube, and thus
preventing it working itself out of the cap, and, becoming free.
A lug not shown in drawings shall be cast on cach half of the
сар just in
front of the drawbolt F so that when the two halves of the cap are set and drawn
together, the jaw of the cap shall not close beyond that which shall be necessary.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is
Firstly. A rope-cap as herein set forth which is constructed in two distinct and
symmetrical halves, drawn together by means of a screwbolt, and tube-rings so as
to form one compléte tube, and containing à shear to prevent one half gliding past

page_text: the other, when the whole is set in place and properly tightened, and the said tube
being near its base largely swelled, for purposes as set forth in the preceding state-
ments, the whole substantially as described and according to the accompanying
drawings.
Secondly. An india-rubber tube fixed to surround the rope at the point where it
emerges from the cap, for purposes hercin set forth, substantially as described and
shown in drawings.
DAVID REES.