`for Hoisting or Hauling.
Year: 1886

page_text: `for Hoisting or Hauling.
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 construct improved apparatus for hoisting
or hauling, and to be operated by steam whilst its action is controlled and
regulated by hydraulic appliances.
My improved apparatus is made with a main cylinder which is by preference
vertical, and stationary, and bas working through a stuffing box at its upper end a
plunger in the form of a hollow cylinder. Tackle pulleys for a chain or rope are
mounted on the main cylinder and on the outer end of the plunger, the movement
of the acting end of the chain or rope being increased relatively to that of the
plunger in proportion to the number of folds or loops formed by means of the
pulleys as is well understood. Within the hollow plunger there is a piston which
is stationary, being fixed to the lower end of a tube which passing through a
stuffing box at the upper end of the plunger has its upper end fixed to a bracket.
The piston has a hole through it, and the hollow plunger being filled with water,
the movement of the plunger when acted on by steam admitted to the main
cylinder, or when descending through the action of gravity on the steam being
exhausted, is regulated according to the rate at which the water in the plunger can
pass from one side of the piston to the other through the hole in the piston. The
top of the piston pipe is connected to an air vessel, the air in which, by its
elasticity allows of the displacement of the water in the hollow plunger by the
pipe when the plunger moves up. This air vessel is provided with a safety valve
to allow of the escape of water if too much be put in.
The steam valve is worked by means of a hand lever which has also connected
to it a rod which causes the shutting off of the steam when the plunger reaches
the outer end of its stroke.
When the apparatus is intended for uses in connection with which it may be
necessary for the plunger to remain stationary for a considerable time in any
position above its lowermost one, a valve is fitted to the piston pipe and is attached
to a rod passing through a stuffing box and connected to a bellcrank lever. This
Din 0.37

page_text: bellcrank lever is connected to a fixed point by a pair of toggle links the middle
joint of which is connected to the steam valve in such a way that the valve of the
piston pipe is closed when the steam valve is in its middle position but opened
when the steam valve is above or below that position. With this arrangement the
valve in the piston pipe by preventing the water from passing into or out of the
pipe prevents the plunger from moving excepting when steam is being admitted or
exhausted.
TAL
T
1000
EDMUND HUNT,
Applicant's Agent.
· Improvements in Combined Steam and Hydraulic Apparatus
for Hoisting or Hauling.
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 construct improved apparatus for hoisting
or hauling and for being operated by steam whilst its action is controlled and
regulated by hydraulic appliances.
My improved apparatus is made with a main cylinder which is by preference
vertical and stationary, and has working through a stuffing box at its upper end a
plunger in the form of a hollow cylinder. Tackle pulleys for a chain or rope are
mounted on the main cylinder and on the outer end of the plunger, the movement
of the acting end of the chain or rope being increased relatively to that of the
plunger in proportion to the number of folds or loops formed by means of the
pulleys as is well understood. Within the hollow plunger there is a piston which
is stationary, and the hollow plunger being filled with water which has to pass
from one side of the piston to the other as the plunger moves, its rate of motion
depends on that at which the water can pass through a passage of suitable size.
An air vessel and a safety valve are provided in connection with the hydraulic
parts as hereinafter more fully explained; and the steam valve is worked by
means of a hand lever which has also connected to it a rod which sbuts off the
steam on the plunger reaching the outer end of its stroke.
When the apparatus is intended for uses in connection with which it may be
necessary for the plunger to remain stationary for a considerable time in any
position above its lowermost one, a valve is applied for closing the passage between

page_text: one side and the other of the piston in the plunger, and is arranged to close when
the hand lever is in its middle position and to be opened whenever the hand lever
is moved to either side of its middle position. This valve which with its actuating
gear is hereinafter more fully described, prevents the plunger from moving excepting
when steam is being admitted or exhausted.
And in order that my said Invention and the manner of performing the same
may be properly understood I hereunto append a sheet of explanatory drawings to
be hereinafter referred to and representing examples of my improved apparatus.
Figures, 1, and 2, of the accompanying drawings are an elevation and a vertical
section of a modification of my improved apparatus suitable for ordinary purposes;
and figure, 3, is a vertical section of a modification in which means are provided
for keeping the plunger quite stationary in any position. In these drawing the
same reference numerals are used to mark the same or like parts wherever they are
repeated.
In the apparatus shown in figures, 1, and 2, the main cylinder, 4, is shown as
cast with brackets, 5, for bolting to a ships' bulkhead or mast or to any other
structure; and it is connected by rods, 6, to an upper bracket, 7, bolted to the
same structure. A hollow plunger or cylinder, 8, is fitted to work through a
stuffing box at the upper end of the main cylinder, 4, and has fixed on its outer
end a crosshead, 9, made with guide eyes, 10, to slide on the rods, 6, the extreme
positions of the plunger being determined by nuts, 11, screwed on the rods. The
plunger crosshead, 9, also carries four tackle pulleys, 12, and the hoisting or hauling
chain is passed round these pulleys, 12, and round four other pulleys, 13, carried on
the cylinder, 4, one of them being on a stud on the side of the cylinder and the
other three on a bracket, 14, fixed to the lower end of the cylinder. Steam is
admitted to the bottom of the cylinder, 4, by a valve in a casing, 15, and worked
by a hand lever, 16; and this lever has jointed to it a rod, 17, by means of which
it is moved to shut off the steam when the plunger, 8, reaches the upper end of its
stroke. The rod, 17, passes up a tube, 18, adjustably fixed to the plunger cross-
head, 9, and this tube has a contracted ring fixed at its lower end which acts as a
stop to a small head or enlargement on the upper end of the rod, 17, when the
plunger, 8, moves up far enough.
Inside of the plunger, 8, there is fitted a piston, 19, held stationary by being
fixed to the lower end of a pipe, 20, which has its upper end fixed to the upper
bracket, 7, and which communicates with an air vessel, 21, fixed on the bracket, 7.
The plunger, 8, is filled with water which can pass from one side to the other of
the piston, 19, as the plunger ascends or descends, through the bottom of the tube
which extends through the piston and through one or more apertures in the side of
the tube just above the piston. The water can however pass in this way only at
a comparatively slow rate depending on the size of the aperture or apertures, and
the speed of the plunger is thereby regulated so as never to exceed a certain rate
however small may be the resistance or the load that is being hoisted or hauled.
The pipe, 20, passes through a stuffing box in the plunger crosshead, 9, and as it
displaces some water on entering the plunger, 8, as the latter ascends, the air
vessel, 21, is provided to compensate therefor, a safety valve being also connected
to the air vessel.
In the modification shown in figure, 3, there are the same parts as are herein-
before described with reference to figures, 1, and 2, and in addition there is a
valve, 22, fitted to the passage through the stationary piston, 19, inside of the
plunger, 8. This valve, 22, is moved by a rod, 23, extending up through the
pipe, 20, and out through a stuffing box at the top of the air vessel, 21. The
rod, 23, is connected to the horizontal arm, 24, of a bellerank lever, the vertical
arm, 25, of which has jointed to it a link, 26, which with another link, 27, jointed
to it and to a pin on a bracket, 28, form a toggle pair to the middle joint of which
there is connected the upper end of a rod, 29, connected at its lower end to
the handlever, 16, for working the steam valve. When the handlever, 16, is in
its widdle position and steam is being neither admitted nor exbausted the small

page_text: valve, 22, in the piston, 19, is closed and consequently no water can pass from one
side of the piston to the other and the plunger, 8, cannot move either up or down.
But when the handlever, 16, is moved either to admit or to exhaust steam, the
consequent action transmitted through the toggle links, 26, 27, and bellcrank
lever, 25, 24, is such as to depress the rod, 23, and open the valve, 22, thereby
setting the plunger free to move in obedience to the movement of the hand-
lever, 16.
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:-
1. The combination of parts forming improved combined steam and hydraulic
apparatus for hoisting or hauling substantially as hereinbefore described with
reference to figures, 1, and 2, of the accompanying drawings.
2.The controlling of the speed of a plunger acted on by steam for hoisting or
hauling purposes, by means of water and a stationary piston inside of the plunger
with a contracted passage for the water from one side to the other of the piston
substantially as herein before described.
3. In combination with the parts mentioned in the second claim, the application
of a valve to stop the passage of water from one side of the piston to the other
except when opened in concert with the handlever working the steam valve
substantially as hereinbefore described with reference to figure, 3, of the accom-
panying drawings.
Dated this instanth
N
1.
1000
EDMUND HUNT,
Applicant's Agent.