Improvements in Clutches or Grippers, Specially Applicable for Attaching Vehicles to a Hauling Rope or Cable.
Year: 1887

page_text: Date of Application, 23rd Apr., 1887
Complete Left, 20th Jan., 1888
Complete Accepted, 2nd Mar., 1888
Improvements in Clutches or Grippers, Specially Applicable for
Attaching Vehicles to a Hauling Rope or Cable.
I, JAMES RAMSAY of Moresby Parks Whitehaven, in the County of Cumberland
Colliery Manager, do hereby declare the nature of this invention to be as follows :-
My invention for improvements in clutches or grippers specially applicable for
attaching vehicles to a hauling rope or cable has for object to construct a clutch
or gripper which can be instantaneously and, if desired, automatically released from
the rope or cable.
A clutch or gripper constructed according to my invention comprises two jaws.
One jaw consists of a lever having one end suitably formed to grip the rope or cable
and having its other end acted on by a trigger levor to retain the said jaw in the
proper position for gripping the rope or cable. The other jaw is connected to
a screw shaft working in a nut and operated by means of a hand wheel so that it can
be brought in proximity to the first-mentioned jaw to cause the two jaws to grip the
cable or rope between them. The rope or cable can be readily and instaneously
released from the clutch or gripper by operating the trigger lever so as to leave the
aforesaid jaw or lever free so that the jaw falls by its own weight or is removed by
means of a spring. If desired the trigger lever may be operated automatically
by means of a projection arranged in its path so as to release the rope or cable at any
desired point.
Dated this 23rd day of Anril 1887
WHEATLEY & MACKENZIE,
156, Strand, London, W.C.,
Agents for the Applicant.

page_text: Attaching Vehicles to a Hauling Rope or Cable.
I JAMES RAMSAY of Moresby Parks Whitehaven, in the county of Cumberland
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 :-
--
My invention for improvements in clutches or grippers specially applicable for
attaching vehicles to a hauling rope or cable has for object to construct a clutch
or gripper which can be instantaneously and, if desired, automatically released from
the rope or cable.
A clutch or gripper constructed according to my invention comprises two jaws.
One jaw consists of a lever having one end suitably formed to grip the rope or cable
and having its other end acted on by a trigger lever to retain the said jaw in the
proper position for gripping the rope or cable. The other jaw is connected to the
screw shaft working in a nut and operated by means of a hand wheel so that it can
be brought in proximity to the first mentioned jaw to cause the two jaws to grip or
clutch the rope between them. The rope or cable can be readily and instantaneously 1
released from the clutch or gripper by operating the trigger lever so as to leave the
aforesaid jaw or lever free, so that the jaw falls by its own weight or is removed
by means of a spring. If desired the trigger lever may be operated automatically
by means of a projection arranged in its path so as to release the rope or cable at
any desired point.
In the accompanying sheet of illustrative drawings. Fig. 1 is a sectional elevation,
Fig. 2 a plan and Fig. 3 a transverse section of a bogie provided with a clutch
or gripper constructed according to my invention. Fig. 4 is a front elevation
shewing the lower jaw of the clutch or gripper held in position by the trigger lever,
and Figs. 5 and 6 are respectively front and side elevations of the same shewing the
lower jaw of the clutch released from the trigger lever and disengaged from the
hauling rope or cable.
The clutch or gripper comprises two jaws A, B. The jaw A consists of a hinged
lever having one end A suitably formed to grip the rope or cable C and having its
other end D acted on by a trigger lever E to retain the said jaw in the proper
position for gripping the rope or cable C. The upper jaw B is connected to the screw
shaft F working in a nut G and operated by means of a hand wheel H so that it can
be brought in proximity to the first-mentioned jaw A to cause the two jaws to grip
or clutch the rope between them. The rope or cable can be readily and instantaneously
released from the clutch or gripper by operating the trigger lever E so as to leave
the jaw or lever A free so that the jaw falls by its own weight or is removed
by means of a spring.

page_text: 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 :-
In clutches or grippers specially applicable for attaching vehicles to a hauling rope
or cable.
1. Constructing one of the jaws for gripping the rope or cable of a hinged lever held
in position by a trigger lever arranged to be released either automatically or by hand,
and theroby to disengage the said jaw from the hauling rope or cable substantially as
described.
2. The arrangement and construction of clutches or grippers substantially as
described with reference to the drawings and for the purpose set forth.
WHEATLEY & MACKENZIE,
156, Strand, W.C.,
Agents.
WHEATLEY & MACKENZIE,
156, Strand, W.C.,
Agents.