Year: 1887

page_text: Date of Application, 10th May, 1887
Complete Left, 8th Feb., 1888
Complete Accepted, 9th Mar., 1888
I, ANDREW BETTS BROWN, of Rosebank Iron Works, Edinburgh, in the County of
Mid Lothian, North Britain, Engineer, do hereby declare the nature of this Invention
to be as follows, that is to say :-
My said Invention has for its object to provide ships, and especially large ships,
with improved, simple, and convenient hydraulic apparatus for loading and unloading
operations.
In carrying out my Invention I arrange the apparatus just below an upper deck,
and so that by means of it the cargo can be taken in or discharged through a port in
the side between the said upper deck and the next lower deck. The apparatus com-
prises a pair of horizontal connected girders carried on guides and which when
required can be moved out so as to project a suitable distance from the ship's side.
Or instead of the entire girders being thus movable, the projecting parts only, may be
made movable. A small truck having wheels is arranged to run on the pair of
girders, and carries two pulleys between which depends the loop of a chain or rope
with a tackle pulley and hook held in it for the attachment of the packages or articles
to be lifted and noved. The outer end of the chain or rope is fixed to the outer end
of the pair of girders and the other end is led round tackle pulleys which are worked
by means of an hydraulic cylinder fixed to the pair of girders. The packages or
articles are raised or lowered by means of the hydraulic cylinder referred to; and a
pair of hydraulic cylinders also carried on the pair of girders is provided for moving
the pulley truck along the girders and thus conveying the load inwards or outwards.
Hand levers are provided in suitable positions for controlling the actions of the
hydraulic cylinders; and when the entire girders are movable the pipes for leading
the water to and from the cylinders are arranged with telescopic lengths to
accommodate the movements.
One pair of girders may be arranged to that it can be run out at either side of a
ship; or separate pairs of girders with their hydraulic cylinders may be provided for
each side.
Dated this Ninth CM1007
EDMUND HUNT,
Applicant's Agent.

page_text: COMPLETE SPECIFICATION.
.
Improvements in Hydraulic Loading and Unloading Apparatus
for Ships.
I, ANDREW BETTS BROWN, of Rosebank Iron Works, Edinburgh in the County of
Mid Lothian North Britain, 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, that is to say:-
My said Invention has for its object to provide ships, and especially large ships,
with improved simple, and convenient hydraulic apparatus for loading and unloading
operations.
r
In carrying out my Invention 1 arrange the apparatus just below an upper deck,
and so that by means of it the cargo can be taken in or discharged through a port in
the side, between the said upper deck and the next lower deck.
And in order that my said Invention and the manner of performing the same may
be properly understood 'I hereunto append two sheets of explanatory, drawings to
be hereinafter referred to and representing two modifications, of my improved
apparatus.
Figure, 1, on sheet, 1, of the drawings is a plan, in two portions the right-hand
half being placed below the other part, and with parts. broken away, in order to bring
the drawing within the extremely inconvenient dimensions prescribed by, official
regulations, without making the drawing, on too small a scale to be, intelligible.
Figure, 2, is a transverse vertical section, the left-hand part being as at AA, and
the right-hand part as at B-B in figure, 1. Figure, 3, is a diagrain, on a reduced
scale, of the apparatus as seen in sectional elevation. Figures, 4, and 5, on sheet, 2,
are reduced-scale diagrams showing, in sectional plan and sectional elevation, a
modification differing somewhat from that shown on sheet, 1. In these drawings the
same reference letters and numerals are used to mark the same or like parts wherever
they are repeated.
IN
The apparatus comprises a pair of horizontal connected girders, G, which are
carried on hanging bracket guides, 10, fixed to the upper deck, D, and which are
arranged so that they can be moved out so as to project a suitable distance from the
ship's side (as shown in figure, 3).. Or, instead of the entire, girders, G, being so
movable, only the parts intended to project may be made, movable.
A small truck, T, having wheels, 18, is arranged to run between the girders,, G, and
upon their bottom flanges, and carries two pulleys, 19, 20, between which depends the
loop of a chain or rope with a tackle pulley and hook, or snatch block, 21, held in it
for the attachment of the packages or articles to be lifted or moved, the outer.end of
the rope being fixed to a lug, 22, at the outer end of the girders, G. The rope is
led round a guide pulley, 53, next round tackle pulleys, 23, carried upon an hydraulic
cylinder, C, and other, tackle pulleys, 24, carried on the ram, R, of that cylinder, the
end of the rope being fixed to the cylinder. The lines of rope are not shown in the

page_text: drawing, as from their number and their parallelism to several other lines they would
render the drawing indistinct. The packages or articles are raised or lowered by
means of the hydraulic cylinder, (; and in the anodification shown on sheet, 1, of the
drawings the pulley truck, T, is moved along the girders, G, by means of two
oppositely-acting hydraulic cylinders, 11; fixed to the girders, G. The rams, 12, of
these cylinders, 11, are fitted with tackle pulleys, 13, which in combination with
pulleys, 14, on the closed ends of the cylinders, and pulleys, 15, at the ends of the
girders, G, act on ropes attached to the truck, T. Water is led to and from the
truck-shifting cylinders, 11, by pipes, 16, connected to a valve box, 17. Water is
led to and from the load-raising cylinder, C, by a pipe, 25, connected to a valve
box, 26; and the valves of these two valve boxes, 17, 26, are worked by means of hand
levers indicated at 27, in figure, 3. When the girders, G, are movable athwartship
(as in both modifications shown on sheets, 1, and 2, of the drawings) the water for
working the hydraulic cylinders, C, 11, is led to and from them by pipes arranged
with telescopic lengths, to accomodate the movements of the girders. The valve
boxes, 17, 26, are connected by pipes, 28, to an inlet box, 29, fixed on one of the
girders, G, and by pipes, 30, to an outlet. box, 31, fixed on the other girder, G. The
inlet and outlet boxes, 29; 31; have fixed to them pipes, 32, 33, which extend along
the girders and pass through stuffing boxes into larger pipes,: 34, 35, which are
stationary, being fixed to elbow pipe pieces, 36, 37, fixed. to the upper deck, D, and
connected to the supply and return mains of the hydraulic accumulator or pumping
apparatus.
•
Details of construction not herein specially referred to will be understood from the
drawings, or may be made or applied as in analogous existing apparatus. It may,
however, be mentioned that the head of the ram, R, of the load-raising cylinder, C,
is guided partly on the girder, G, to which the cylinder is bolted, and partly by a
rod, 38, fixed at its outer end to a bracket, 39,.bolted to the girder, G, and extending
through the front end block of the cylinder, (, to the back end block of that cylinder.
This rod, 38, is fixed to the front end block of the cylinder, C, by screw nuts, and 'it
has other screw nuts, 40, fixed on it for limiting the stroke of the ram, R.
In the modification shown on sheet, 2, of the drawings the arrangement of the
telescopic pipes, 32, 34, and 33, 35, is modified so that these pipes may be used for
moving the girders, G, so as to project from either side of the ship as required or so
as to be in a middle position entirely inboard. The larger pipes, 34, 35, are fixed to
one of the girders, G, whilst the smaller pipes, 32, 33, are connected to stationary
boxes, 41, 42, fixed to the ship; and from these boxes pipes, 43, 44, proceed to valve
boxes, 45, 46, with which a fourway cock or valve, 47, is connected. In the
valve boxes, 45, 46, there are stop valves for opening or shutting direct connection
between the pipes, 43, 44, and the supply and return mains, 48, 49, from the accu-
mulator or pumping apparatus. When the girders are to be moved the stop valves
are closed and the four-way cock, 47, is opened in one of two ways according to the
direction in which the girders are to be moved. The four ways of the cock, 47, are
connected by pipes or passages, so that two diametrically opposite ports communicate
with the pipes, 43, 44, respectively, and the ports at right angles with the supply and
return mains, 48, 49, so that in one open position of the cock pressure acts in the
pipes, 43, 32, and 34, to move the girders, G, towards the left, whilst in the other
open position of the cock pressure will act in the pipes, 44, 33, 35, to move the girders
towards the right. A check valve in a valve box, 50, on the exhaust pipe of the load-
raising cylinder, C, prevents the water from passing through that pipe into the
cylinder, when the pressure is, for the purpose of moving the girders, G, made to act
in what is ordinarily the exhaust or return pipe.
The apparatus shown on sheet, 2, of the drawings is arranged for being made to
project from either side of the ship; and when projecting from the right-hand
(starboard) side as shown the rope (not shown) after passing round the tackle
pulleys, 24, 23, carried by the load-raising cylinder, C, and ram, R, is rove through a
portable pulley block, 51, placed at the then inner end of the girders, G, and proceeds
thence towards the other end of the girders, passing round the truck and snatch-

page_text: block pulleys, 19, 20, 21, and having its end fixed at 22, to the end of the girders.
When the girders, G, are made to project at the left-hand (port) side. The portable
pulley block, 51, is shifted to the position, 52, and the rope is led to it round a
guide pulley, 53.
Apparatus for moving the truck, T, along the girders, G, is not shown on sheet, 2,
but apparatus like that shown on sheet, 1, may be used; or the truck may be moved
in any convenient manner.
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 combination of hydraulic apparatus for loading and unloading ships,
substantially as shown on sheet, 1, of the accompanying drawings and hereinbefore
described.
2-The modified combination of the apparatus substantially as shown on sheet, 2,
of the accompanying drawings and herein before described.
3 In apparatus for loading and unloading ships, combining horizontally movable
or extensible girders, with one or more hydraulic cylinders fixed on the girders and
acting with tackle pulleys on ropes or chains, and with a truck running on the
girders and fitted with pulleys for the rope, the parts being arranged and operating
substantially in the manner and for the purposes hereinbefore described.
Dated this Seventh day of February 1888.
EDMUND HUNT,
Applicant's Agent.