A Rope-grip for Rope Haulage.
Year: 1897

page_text: Date of Application, 12th June, 1897-Accepted 24th July, 1897
A Rope-grip for Rope Haulage.
I, FRIEDRICH STOLZ, of Neu-Weissen-Stein, near Waldenburg, Silesia, Germany,
Director of Mines, 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 relates to an improved rope grip for rope haulage, which enables
the trucks or other receptacles containing the materials to be transported to be
connected to a horizontal or inclined hauling rope at any desired point without any
special appliance, such as knots &c., the connection being made all the more firmly
the greater is the load, or the steeper the incline. At the same time the load can
be readily disconnected at any desired point.
I will describe the said appliance with reference to the accompanying drawing in
which Figures 1 and 2 shew sectional views of the device at right angles to each
other. Figure 3 shews a plan with the sliding gripping jaw and cheek removed,
and Figures 4, 5 and 6 shew plans of the complete device with the parts in three
different positions.
The rope-grip is mounted on the iron bar a which is fixed to the receptacle for
the material to be transported, and which has two collars 6 b¹, on which bar is
keyed the piece d having two projections v¹. On the collar b' rests the cheek e
with the gripping jaw g, which cheek is free to turn on and has two grooves ƒ ƒ¹.
Over the cheek e is placed the second cheek with the second gripping jaw m, and
having an opening in which is situated the piece ; it has lugs i and k engaging
with the grooves f f¹ of e.
The groove falso contains a helical spring which, in pressing against the lug k,
tends to keep the cheek h drawn backward, with its surface w pressed against the
projections v v³ of the piece d.
The several parts of the hauling grip are made either of wrought iron, malleable
cast iron, or steel.
The action of this device is as follows. If the hauling rope be placed in the
groove n of the grip jaw g, then owing to the pressure exercised by the weight of
the rope on the jaw, the pull exercised in the direction of haulage will cause the
cheek e and its jaw g to turn slightly in that direction, as shewn at Figures 4 and 5.
This motion will also be imparted to the cheek h and its jaw m, through the
lugs i, k, and in being thus turned relatively to d the one projection vor v of the
latter will press against the face w of h and will thereby force the jaw m towards g
so as to grip the rope firmly between the two.
By providing a suitable device on the hauling track, with which the jaw g of the
grip comes in contact in passing, the jaws g, m and cheek e, h will be brought back
into the position at right angles to the bauling rope, as at Figure 6, whereby the
cheek h will be released from the pressure of the projection vor v¹ and consequently
the spring will push back the cheekh and jaw m, thus freeing the rope from the
grip. If at the same time the rope be raised up, the grip and its truck will be
entirely detached therefrom,

page_text: Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I claim is:-
A rope grip for rope haulage, consisting of the combination with a pair of
gripping jaws gm of a fixed plate & having projections so arranged that on the
jaws gm being turned by the pull of the hauling rope the said plate will force the
sliding jaw m towards the jaw g so as to grip the rope between them, substantially
as described.
1007
ABEL & IMRAY,
Agents for the Applicant.