Improved Steam and Hydraulic Gear for Hoisting, Hauling, Steering, and other Purposes.
Year: 1892

page_text: Date of Application, 31st Mar., 1892
Complete Specification Left, 22nd Dec., 1892-Accepted, 4th Feb., 1893
PROVISIONAL SPECIFICATION.
Improved Steam and Hydraulic Gear for Hoisting, Hauling, Steering,
and other Purposes.
I, William ALLAN OGLETHORPE, of 6 Chetwynd Street, St. Michaels,
Liverpool, Marine Engineer do hereby declare the nature of this invention to be as
follows:-
:-
This invention relates to an improved steam and hydraulic gear, for the purpose
of hoisting, hauling and lowering cargo, ashes, merchandise, minerals, etc., and is
also applicable to other purposes.
This I effect by means of a duplex steam pump, not necessary of a special type,
and a hydraulic hoist.
The steam pump may be arranged to work one, two or more hoists.
A steam slide valve is provided for regulating the supply of steam to the steam
cylinders of the pump, and a hydraulic valve is provided for regulating the passage
of oil or other liquid to and from the hydraulic cylinder, which valves are connected
with the hand gear for working the hoists.
A connection or stop may also be provided on the hydraulic cylinder crosshead
or other moving part, for the purpose of closing the valves at the limit or position
required.
A tank is provided for the supply of oil or other liquid, with connections to
pump and hydraulic valve.
Dated this 20th don of March 1800
W. A. OGLETHORPE.
COMPLETE SPECIFICATION.
Improved Steam and Hydraulic Gear for Hoisting, Hauling, Steering,
and other Purposes.
I, WILLIAM ALLAN OGLETHORPE, of 6, Chetwynd Street, St. Michaels,
Liverpool, Marine 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 an improved steam and hydraulic gear, for the purposes
of hoisting, hauling, and lowering cargo, ashes, merchandise, minerals, etc.; and is
also applicable to other purposes.
This I effect by means of a duplex steam pump, not necessarily of a special
type, and a hydraulic hoist.
The steam pump may be arranged to work one, two, or more hoists. A steam
slide valve is provided for regulating the supply of steam to the steam cylinders.
of the pump, and a hydraulic valve is provided for regulating the passage of
oil or other liquid to and from each hydraulic cylinder, which valves are
connected with a hand gear for working the hoists. A connection or stop may
also be provided on the hydraulic cylinder crosshead or other moving part for
the purpose of closing the valves at the limit, or position, required. A tank is
provided for the supply of oil or other liquid, with connections, to the pump
and the hydraulic valves.
In the drawings which serve to illustrate this invention,
Figure 1 is a longitudinal section of a portion of a ship with my improved
apparatus applied for the purpose of hoisting ashes from the stoke-hold, and other

page_text: :
Figure 2 shews another arrangement illustrative of the invention as applied to
loading and unloading goods to and from ships' holds.
Figure 3 is a sectional elevation; Figure 4 is a plan; and Figure 5 is a cross
section of the steam controlling valve of the apparatus.
Figure 6 is a sectional elevation of a liquid distribution valve of the apparatus ;
and Figure 7 is a plan of same.
Figure 8 is a longitudinal section; Figure 9 is a plan; and Figure 10 is a cross
section of a modified liquid distribution valve.
In the different figures of the drawings, the same or equivalent parts are
designated by the same figures and letters of reference throughout.
"
The apparatus shown comprises a single "duplex steam pump a, that is to
say, a pump having two or more steam cylinders and two or more liquid
pumping cylinders, and so adapted and arranged that the pump will start of
itself whenever steam is supplied to it: this pump being a well known form
needs no further description. In connection with this pump I use one, two, or
more hydraulic rams, the one shewn, designated, being of the multiple sheaf type
of ordinary construction, and provided with actuating and automatic controlling
mechanism as hereinafter described. A tank c is employed in connection with the
pump a and the ram to receive the exhaust liquid from the ram, and to serve as a
feed or supply tank to the duplex pump. In the example shewn there are two
steam supply and controlling valves to the pump, and two liquid distribution
valves. By this arrangement, through mechanism hereinafter specified, two sets of
hydraulic rams or hoists can be operated by a single pump, and such rams can be
at different parts of the ship and independent of each other; and all this is done
without employing an accumulator. By providing one or more further steam
supply and liquid distribution valves, with suitable operating mechanism and
connections, one pump could be worked from one or more points, and could work
three or more sets of hydraulic apparatus at different points on the ship, and for
different purposes of boisting or hauling, steering, etcetera. The steam controlling
valves of the cylinders of the pump a are designated d (see Figures 3 to 5), and
work in the valve cases d'; while e are the liquid distribution valves working in
cases e¹.
The tank c. is connected with the pump cylinders of the pump by a pipe f, which
conveys the liquid from such tank to said pump cylinders through ordinary lift
. valves, and from the pump cylinders it is discharged by the pipes g, which are
connected to the valve casings e¹ by branches g', an ordinary non-return ball
valve being provided on these pipes to prevent the return of liquid by such
branch g', under any circumstances.
The hydraulic rams are connected with the liquid distribution valve cases e¹ by
the pipes h, the connection at the valve case being effected through a branch h¹.
These pipes and branches ¹ serve to convey the liquid both to and from the
hydraulic rams between the cases e¹ and the ram cylinders. The return of liquid,
that is the exhaust liquid, from the rams is conveyed to the tank c by the pipes i,
the connection of which to the case e¹ is effected by the branches. These
branches g', h¹ and i¹ constitute ports on the valve casing e¹; thus, g' is the general
inlet port to the case; ¹ is alternately a supply and an exhaust port to the case
conveying liquid to the ram cylinder and carrying it back therefrom; whilst ¹ is
purely an exhaust port to convey liquid exhausted from the ram cylinder back to
the tank c.
The construction of valve e shewn in detail in Figures 6 and 7 consists of a
piston or rod with a central part e' reduced, the annular space formed between it
and the interior surface of the case e¹ serving as the port of such valve for
conveying the liquid from the different ports of the valve case to the others just
specified. Thus, when liquid is being conveyed from the pump to a hydraulic ram,
the valve is adapted to be moved to such a point in the valve case e¹ that the
branch and the branch would be put in communication with each other by
way of the said annular port of the valve; whilst when it is desired to exhaust the

page_text: ram, and convey liquid back to the tank c, the annular port of the valve would
stand over and communicate the branch h¹ with the branch i¹.
Each valve e is operated simultaneously with the its fellow valve d, such valves
being directly connected by the spindle ; and this spindle is operated through a
lever fulcrummed at j¹. The ram b shewn in Figure 1 is adapted to be actuated
by hand through a rod k and lever ¹ fulcrummed at k³, and its limit of operation is
also controlled automatically by the rod mounted on the moving sheaf head b¹,
and having stops thereon at the top and bottom, which come in contact with the
end of the lever k at the extreme end of the up and down strokes of the ram
(or at other desired limits), and so shuts off the supply of steam to the pump and
stops it. At the same time, when the levers k¹ are operated by hand, of course the
valve can be operated through the lever j and rod d' at any moment, and can
stop the pump or start it as and when desired. When the pump is stopped, the
valve e is brought to its central position as shewn in Figures 6 and 7, and thus the
liquid is locked in the ram, and the ram held in any desired position. And when
the valve e is in its central position the steam supply. valve cuts off steam from the
pump: the steam controlling valve d will at the same time be in its central position
and steam cut off, as shewn in Figures 3, 4, and 5.
The means of hoisting ashes from the stoke hold, may consist of an ordinary tub
or bucket which is raised and lowered by the ram 6 through the chain r thereof
working over pulleys and, the pulley guiding such chain so that it works
centrally in the shaft s, which may be any one of the ventilator shafts, or a special
shaft to or from the stoke hold. The pulley being a swivelling one and pivotally
mounted in the bracket fixed to a bulkhead, by swivelling said pulley round and
leading the chain over a pulley on a second shaft, the hoist is adapted to work two
separate sets of hoisting buckets. In like manner several sets of hoists can be
worked by the one apparatus. The handle k¹ which operates the apparatus and
controls its action is adapted to be worked from the platform t in the stokehold,
whilst the whole mechanism or apparatus may be assumed to be fixed in the
position shewn, to a bulkhead or the side of the ship. o and o' are two decks of
the vessel.
The steam controlling valve d shewn in Figures 3, 4, and 5, consists of an
ordinary slide controlling a port d' connected with the ordinary steam valve chest
of the pump a by a pipe d', steam being conveyed to the valve case d' by a branch d
from the steam supply pipe m. Thus the actuation of the valve rod, through
the actuating gear above described, moves the steam valve d and liquid distribution
valve e simultaneously, with the effects above specified; the neutral or central
position of these valves being that shewn in Figure 3, and in Figure 6. That is,
in the first case the supply port to the steam valve chest of the pump steam
cylinders is covered by the slide d; while in the second case the annular port of
the valve e lies between the branch connecting it with the tank c, and the
branch g connecting it with the pump delivery pipes, so that such port lies
opposite the ram branch only, and liquid is locked in said ram cylinders."
It may be assumed that the pipe h on the right hand side of Figure 1 leads to
another hydraulic ram, say of the kind shewn on the left hand side of Figure 1 and
in Figure 2, either for operating another ash hoist, or for discharging cargo, for
loading, or for otherwise hoisting or hauling, or for serving as a hydraulic ram
connected with the ship's tiller, for steering the vessel, or other analogous or
equivalent purpose; while the actuating rod k would be led to a suitable spot for
operating the hydraulic rain. In a like manner, a further set of steam controlling
and liquid distribution valves, or a series of sets of such valves, and suitable
operating means, may be provided with a single pump a for performing different
duties at different parts of the ship, structure or place.
In the diagrammatic view in Figure 2, the pump a is fixed on the deck 0, while
the two hydraulic rams 6 of multiple sheaf type are mounted on the mast p between
the decks o and o¹, while the operating lever k¹ is disposed near the cargo hatch q.
These two arrangements suffice to shew how the invention may be carried out,

page_text: and applied to different purposes, and in different positions, on board ship and other
places.
In the modification of liquid distribution valve shewn in Figures 8, 9, and 10, a
slide e is used instead of the piston e, as in Figures 6 and 7, and works on a face
with ports in it. The ports ' and ' are governed by the said slide, and a branch,
for conveying liquid from the pump into the valve case e¹ is provided thereon. In
this case when the valve is in the central position, as shewn in Figure 8,
communication between the pump and the ram, and the ram and the tank, is shut
off, as the port h', through which fluid flows to and from the ram, is closed by the
metal of the slide e, as shewn.
In operation, when liquid is to be pumped into the ram the slide e is so moved
that the port is uncovered, and thereby allows the liquid to flow from the valve
case to the ram by such port h'. When, on the other hand, it is desired to
exhaust the ram, the slide e is so moved that its porte lies over the ports /¹ and i¹,
so forming communication between the rams and the tank c.
Having now particularly described and illustrated by examples my invention,
and in what manner the same is to be performed, I declare that what I claim
in respect of the same is :-
1. Apparatus for hoisting, hauling, steering, and other purposes, comprising the
combination of a "duplex" steam pump, (that is one adapted to be started or
stopped of itself when steam is supplied to it, or cut off, respectively); a steam
supply and a liquid distribution valve thereon; a hydraulic ram connected with
said liquid distribution valve; and a hand mechanism connected with said liquid
distribution valve by which the valve is operated and the apparatus controlled;
substantially as herein set forth.
st
"
2. Apparatus for hoisting, hauling, steering, and other purposes, comprising the
combination of a duplex steam pump, (that is one adapted to be started or
stopped of itself when steam is supplied to it, or cut off, respectively); two or more
sets of steam supply and liquid distribution valves connected with said pump and
adapted to be operated independently; and two or more hydraulic rams, one of
which is connected with each of said liquid distribution valves, whereby two or
more sets of hydraulic rams are adapted to be operated by a single pump from
different parts or points, and for different purposes; substantially as described.
3. The apparatus for hoisting, hauling and other purposes, having its parts
combined and adapted to operate as set forth with reference to Figure 1 of the
drawings.
4. The particular arrangement of duplex pump a and hydraulic rams 6 set forth
with reference to Figure 2 of the drawings.
5. The liquid distribution valves constructed as set forth with reference to
Figures 6 and 7; and Figures 8, 9, and 10, respectively, of the drawings.
Dated this 20th day of December 1892.
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicant's Patent Agents.