Improvements in Grips or Clips for Attaching or Securing Trucks, Tubs, Waggons, or like Vehicles to Travelling Ropes or Cables.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Grips or Clips for Attaching or Securing Trucks,
Tubs, Waggons, or like Vehicles to Travelling Ropes or Cables.
We, ELAM EAVES of Norfolk Street, Derby in the County of Derby, Mechanical
Engineer, and ALFRED JOSEPH TONGE of Woodbine House, Westhoughton, near
Bolton in the County of Lancaster, Mining Engineer and Colliery Manager, do
hereby declare the nature of this invention to be as follows:-
That is to say It relates to improvements in the formation or construction of
gripping devices known as grips or clips for attaching or securing trucks, tubs,
waggons or like vehicles to travelling ropes or cables and more especially to those
rope or cable haulage arrangements used in connection with mining operations,
by which improvements means are produced at comparatively little cost and in
such a manner as to enable the ready attachment or detachment of the vehicles
to their hauling ropes while said means further meet and perform the several
functions desired of them, efficiently.
In carrying our invention into effect we make the gripping device out of a
bar or rod of metal either of circular or square shape in cross section. One end
of this rod or bar is bent to be secured to the chain or other coupling means
attached to the tub, truck or other vehicle, while the other end of said rod or bar
is bent into a spiral form with one coil separated from the other sufficiently to
allow the haulage rope to pass diametrically between them so that on being thus
pressed to span said rope, by twisting or turning the gripping article it may be
brought so that the pull on its end secured to the vehicle's chain will cause one
part of the spiral coil to press on one side of the rope while another part presses
on the other side thus it grips said rope as desired, the greater the force it has to.
overcome in dragging the vehicle along, the greater will its gripping actions be
on the rope.
The spiral end of the gripping article is further formed so that whether it pass
over the well known guide pulleys to the right or to the left, the flanges of said
pulleys are unable to dislodge it from the rope, its movement to the one side being
equally freely allowed as it is to the other side.
1906

page_text: Improvements in Grips or Clips for Attaching or Securing Trucks,
Tubs, Waggons, or like Vehicles to Travelling Ropes or Cables.
We, ELAM EAVES of Norfolk Street, Derby in the County of Derby, Mechanical
Engineer, and ALFRED JOSEPH TONGE of Woodbine House, West-Houghton, near
Bolton in the County of Lancaster, Mining Engineer and Colliery Manager, 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:
That is to say It relates to improvements in the formation or construction of
gripping devices, known as grips or clips for attaching or securing the connection
of trucks, tubs, waggons or like vehicles to travelling ropes or cables and more
especially to those rope or cable haulage arrangements used in mining operations,
by which improvements means are produced at comparatively little cost and in
such a manner as to enable the ready attachment or detachment of the vehicle
to their hauling ropes while said means further meet and perform the several
functions desired of them efficiently.
In the accompanying sheets of drawings which are illustrative of our
invention:
Fig. 1 is an elevation showing our improved device in use in connection with an
arrangement wherein the hauling rope operates in a plane above the vehicle.
Fig. 2 is a similar view to Fig. 1 but illustrates the hauling rope arranged
beneath the vehicle.
Fig. 3 is a side view of our improved rope-gripper drawn to an enlarged scale.
Fig. 4 is a view of said gripping device as seen in the direction lengthwise the
rope which latter is shown in section, and also to an enlarged scale.
Fig. 5 is a sectional view on line A B of Fig. 3.
Fig. 6 is a perspective view of the gripping device.
Figs. 7 and 8 are drawings illustrating a modification hereinafter explained.
In carrying our invention into effect we form the gripping device a so that it
may be readily attached at. its end b to the hauling chain or other attachment c
secured to the vehicle d while its other end e is bent into the spiral form as shown,
one coil e being separated from the other e sufficiently to allow the haulage rope f
to pass diametrically between them by which means on the said gripping device a
being taken and placed upon the rope f one part el being on one side and the
other part e being on the other side thereof, it is only necessary to give the end 6
a slight turn or twist and the gripper is brought thereby into its position shown
by Figs. 1 and 2, in which position, by the rope f travelling in the directions
indicated by the arrows g and h and therefore causing the force on the gripper a
to act in the opposite direction to overcome the retarding actions of the vehicle d
which it has to carry along with it, the upper part or side of this spiral coil el
is caused to press on one side of the rope f and the other side of the coil e is
caused to press on the other side, the greater the drag on the arm 6 the greater
will be this pressure with the result that the vehicle d is caused to move as desired.
The outer end e as also the bent part of the arm are shaped so that in
passing around the grooved guide pulleys used in connection with this class of
mechanism the flanges of said pulleys will not interfere with the gripping actions
of the gripping device, any lateral motion caused by this travelling around the
guide pulleys being equally free in one direction or to one side as in or to the
other.
To give extra strength to the spiral parts e and e¹ and bent part bland further

page_text: to allow the greatest possible freedom for the actions of placing the gripping
device into and out of connection with the rope f, we form a rib or strengthening
part in thereon as shown in section by Fig. 5.
Again instead of the arm b being secured in the position on the spiral parts e el
as shown by Figs. 1 to 6, we may secure it thereon as shown by Figs. 7 and 8.
Provided it is found advantageous those surfaces of the gripper which are for
contact with the hauling rope or cable or with the guide pulleys around which
same passes, may be roughened as by having serrations or projecting pieces formed
on them so that greater friction is produced between them and those parts into
contact with which they are pressed.
Having now particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed, we declare that what
we claim is:
1. A rope-gripper for cable railways having its gripping part of spiral form,
one coil of said spiral being separated from the other to allow the application of
the gripper to the cable while when applied said rope is gripped between said two
spirals substantially as specifical.
2. A rope-gripper for cable railways having its gripping part of spiral form, one
coil of which is for contact with one side of the cable while the other is for contact
with the other side so that the pull on the arm extending from the coils causes
them to grip said cable substantially as specified.
3. A rope-gripper for cable railways formed at one part of the shape of a spiral
or coil with an arm extending therefrom, said coil or spiral being of the shape
described substantially as set forth.
4. A rope gripper for cable railways having a coiled part and an arm extending
therefrom, said arm being bent so as to be clear of the flanges of any guide pulley
around which it has to pass substantially as specified.
Dated the 16th day of June 1897.
E. EAVES,
A. J. TONGE,
Per Samuel Hey, Agent.