Improvements in Apparatus for Loading Coal into Vessels.
Year: 1891

page_text: Date of Application, 13th Oct., 1891-Accepted, 19th Mar., 1892
COMPLETE SPECIFICATION.
Improvements in Apparatus for Loading Coal into Vessels.
I, IVOR REES, of Sully House, Sully, near Cardiff, in the County of Glamorgan,
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 :—
This invention relates to improvements in the construction of fixed or moveable
coal staiths, and is applicable to almost any of the present form now in use.
The general form of the staith is not a part of this invention, and therefore my
improvements can be adapted to present structures. And in order that my inven-
tion, and the best means of carrying it into practical effect, may be thoroughly
understood, I will now particularly describe them, referring in so doing to the
accompanying drawings, which are to be taken as part of this Specification and
read therewith.
In a staith constructed according to my invention, the coal in the waggon A is
tipped direct into a large box B, and not into a shoot as is the common practice.
The box has a moveable bottom D which is capable of rising or falling within the
box. It consists of two flaps E, E, of equal area. They are pivotted upon a
transverse rod the ends of which enter central vertical guides e, e. The fall of the
bottom is limited by suitable stops F fixed at the bottom of the box. The box is
jibbed out to the required distance and then lowered into the ship's hold, where
the coal is discharged, after which the box is raised and jibbed back to its former
position. The arrangements for working the box are fixed upon a large turntable G
carried on the top of the staith.
His the ram for raising and lowering the box. It also assists in operating and
controlling the flaps E, E.
I is the ram for working the jib. It is coupled direct to the jib and is double
acting.
Jis the cylinder of a ram upon the back of the jib. It is for raising the flaps
and the chains attached thereto, and for holding them at a certain distance from
the top of the box, i.e., in the position illustrated in Fig. 1. is the chain through
which the power of this ram is exerted. It is made fast to the cylinder of the
ram, and from there led over a sheave j on the ram head, over a sheave k, carried
on the back part of the jib near the ram, round a second pulley / carried on the
jib nearer the front, backwards and over a pulley m on the head of the ram H,
over a sheave on the head of the ram K, and lastly over the jib-sheave q down
to the flaps.
K is a third ram and its function is to, in conjunction with the ram H, operate
and control the whole of the chain gear of the flaps E, excepting of course the
work done by the ram I.
P, p are the chains for lifting the box. They are led upwards and over
sheaves g'g'on the head of the jib, then backwards and over sheaves in the head
of the ram H, next forwards and about sheaves r on both sides of the cylinder of
the said ram, then backwards and over sheaves in the head of the same ram, the
ends being finally made fast to the cylinder.
When the truck A is ready for tipping, the ram K is full out. The weight of
the coal upon the bottom drives it down nearly to the bottom of the box. This
drop of the bottom forces the ram into ite cylinder J.
After the box has been lowered, the ram K is withdrawn into its cylinder. This
produces a slackness in the chain f the consequence of which is that the flaps drop
and let the coal drop.
The cradle is tiled by means of a ram L fitted at the back portion of the staith

page_text: near the top, the outer end being attached to a swinging frame L' the fulcrum of
which is fixed to the top framing at M. To the outer end of the swinging frame,
sheaves N are fixed over which passes a chain O. One end of this chain is
attached to the tilting portion of the cradle P, and the other end to the point Q
on the main frame-work of the cradle. The chain also passes over other sheaves R
at the bottom of the coal staith.
It will be seen that the cradle can be worked either up or down at will, the
chain's passing over the sheaves R and N.
When the pressure is admitted to the ram L, the swinging frame and sheaves N
are pushed forward, thus elevating the tilting cradle and waggon A to the necessary
angle.
I do not confine myself to the method shewn in which the swinging frame is
pushed forward by the ram L, as it may be pulled in the same direction by links or
chains connected up to a fixed ram or cylinder attached at a convenient position
to the main framing.
The box and jibbing arrangement may also be employed in connection with the
existing style of shoot if required..
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. The application of the box with hinged bottom working as described in com-
bination with the rams necessary for manipulating the same, as set forth.
2. The swinging frame and chain arrangement for tilting the waggon, as set
forth..
"
PHILLIPS & LEIGH,
22, Southampton Buildings, Chancery Lane, W.C.,
Agents for the Applicant.