Improvements in Apparatus for Shipping or Transferring Coal and other Materials.
Year: 1890

page_text: Date of Application, 20th Nov., 1890
Complete Specification Left, 20th Aug., 1891-Accepted, 26th Sept., 1891
PROVISIONAL SPECIFIC
ON.
Improvements in Apparatus for Shipping or Transferring Coal and
other Materials.
I, ROGER WRIGHT, of the Elswick Works, Newcastle-upon-Tyne, Engineer,
do hereby declare the nature of this invention to be as follows :—
Shoots for transferring coal and other materials have commonly been made with
doors at their lower end so that the shoot can be filled with the coal or other
material which is allowed to flow out of the shoot when desired by opening the
doors. Shoots have also been made with a slide in them, which slide is lowered
down as the shoot is filled thereby preventing breakage.
usual manner.
According to this invention I combine the advantages of both of these plans by
having in the shoot a slide provided with doors. I preferably operate such
apparatus by hydraulic power. Ropes or chains are attached to the two sides of
the slide and are led over pulleys upon a bydraulic cylinder and ram in the
The doors are normally kept closed by means of another rope or
chain, which is similarly led over pulleys on the hydraulic cylinder and ran, but
in place of its end being fixed to the hydraulic cylinder it is led over pulleys on
a second or subsidiary cylinder and ram. When the slide is to be operated without
opening the doors the ram in the subsidiary cylinder remains at rest, and the three
chains then work together at the same speeds. When however it is desired to
open the doors the water is allowed to escape from the subsidiary cylinder so that
its ram runs in, slacking out the chain which retains the doors.
D 20th day of November 1890.
CARPMAEL & CO.,
Agents.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Shipping or Transferring Coal and
other Materials.
1, ROGER WRIGHT, of the Elswick Works, Newcastle-upon-Tyne, Engineer, 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:-
Shoots for transferring coal and other materials have commonly been made with
doors at their lower end so that the shoot can be filled with the coal or other
inaterial which is allowed to flow out of the shoot when desired by opening the
doors. Shoots have also been made with a slide in them, which slide is lowered
down as the shoot is filled thereby preventing breakage.
According to this invention I combine the advantages of both of these plans by
I preferably operate such
having in the shoot a slide provided with doors.
apparatus by hydraulic power. Ropes or chains are attached to the two sides of
the slide and are led over pulleys upon a hydraulic cylinder and ram in the usual
manner. The doors are normally kept closed by means of another rope or chain,
which is similarly led over pulleys on the bydraulic cylinder and ram, but in place
of its end being fixed to the hydraulic cylinder it is led over pulleys on a second
or subsidiary cylinder and ram. When the slide is to be operated without opening
the doors the ram in the subsidiary cylinder remains at rest, and the three chains
then work together at the same speeds. When however it is desired to open the

page_text: doors the water is allowed to escape from the subsidiary cylinder so that its ram
runs in, slacking out the chain which retains 'the' doors.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a plan and Figure 2 a side elevation of an apparatus constructed
according to my invention and
Figure 3 is a section on the line- & Figures 1. and 2.
A is the shoot provided as is usual with a screen a and doors a' a¹. B a slide
working in the-shoot. This slide is-mounted on rollers b running on rails on the
top edges of the shoot. C Care doors, pivotted at c to the slide. D is the
hydraulic cylinder for working the slide and E the hydraulic cylinder for working
the doors CC. The gearing.for operating these parts is arranged as follows:-
The chain is fixed to the slide at fand passes over the pulleys: 1, 2, 3, 4
and the pulley 5 on the head of the ram of the cylinder D. Its end is fixed
to the cylinder D at . The chain G is fixed to the slide at git passes over
the pulley 6 and the pulley 7 on the head of the ram in the cylinder' D and its
end is fixed to the cylinder D at g'. The two ends of the chain HL are fixed to
the doors CC at cc. They pass round the double pulleys 8 and 9 and then as
a single chain H (the coupling being at Y) over the pulleys 10 and 11; the latter
being on the same axis as the pulley 6; then over 'the pulley 12 on the head of the
ram in the cylinder Dover the pulley 13 'on the head of the ram in thie-cylinder E
and is fixed to the cylinder E at h. It will 'thus be seen that so long as the
ram of the cylinder E remains stationary all 'three chains are operated in the same
manner by the ram of the cylinder D but by allowing the water to escape from
the cylinder E, that the doors can be opened when 'the 'slide is-in any position.
It will be obvious that the hydraulic cylinder E-may be replaced by otlier
mechanism for slacking the chain H. It will also be obvious that in place of
having the mechanism for operating the chain upon the shoot it may be put in
any other position such for example as in therbold of the shipbeing loaded (so that
the coal trimmers themselves may deliver the coal from the shoot.
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. In apparatus for shipping. .or transferring coal and other materials tha.com-
bination of a shoot, a slide in the shoot and doors in the slide substantially as
described.
2. In apparatus for shipping or transferring coal and other materials the com-
bination of a shoot, a slide in the shoot, doors. in the slide, chains attached.to the
slide and to the doors and passing over pulleys on 'the rain of the same. hydraulic
cylinder and mechanism for operating the chain fixed to the doors independently
of the other chains substantially as described.
3. Apparatus for shipping or transferring coal and other materials substantially
as described, and shown in the drawings.
Dated this 20th day of 100