IMPROVEMENTS IN PORTABLE ELEVATORS FOR GRAIN AND LIKE CARGO
Year: 1884

page_text: We GEORGE FOSBERY LYSTER and ANTHONY GEORGE LYSTER both of Coburg
Dock Liverpool in the County of Lancaster, Civil Engineers do hereby declare the
nature of our said invention for IMPROVEMENTS IN PORTABLE ELEVATORS FOR
GRAIN AND LIKE CARGO to be as follows:-
"
Our invention relates to elevators for discharging or unloading from ships, barges
vessels or containers, grain, salt, or other like bulk cargo capable of being raised by
means of an endless chain or band and bucket elevator and the object is to provide
an elevator readily movable from place to place and easily and accurately adjustable
in position in a ships hold or elsewhere.
The invention consists essentially in the combination and novel construction of
a travelling derrick or crane, and endless band and bucket elevator and a motor
and compensating driving gear. The travelling derrick is provided with a jib
capable of being moved in either direction in a plane from or to the vertical
position and fitted with a telescopic stay adjustable at its lower end. Suspended
from a chain or rope passing over the jib is an elevator fitted internally with
endless bands or chains and buckets and provided with two legs hinged together or
one of them hinged, so as to be capable of movement nearer together or further
apart at their lower ends. Motion is given to the said endless chains or bands and
buckets by belt or other gearing operated by any suitable motor. To allow for
driving whilst the elevator gradually descends as the grain is removed a com-
pensating pulley or sheave or sliding or joint connections are interposed between
the motor and the elevator.
:
The elevators are used as follows:-The portable derrick or crane carrying the
band and bucket elevator is moved to the required place the jib is raised so as to
lift the elevator from its bed on the crane or derrick and the motion of the jib is
continued past the perpendicular position until the said elevator is swung clear of
the crane or derrick and over the hatchway or other place where it is to be used.
The legs of the elevator are spread apart to the distance required to pass say a
screw shaft tunnel or other obstruction: the elevator is then lowered to the
required position and set in motion.

page_text: 5
We GEORGE FOSBERY LYSTER and ANTHONY GEORGE LYSTER both of Coburg
Dock Liverpool in the County of Lancaster Civil Engineers, do hereby declare the
nature of the said invention for "IMPROVEMENTS IN PORTABLE ELEVATORS FOR
GRAIN AND LIKE CARGO," and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:―
Our invention relates to élevators for discharging or unloading from ships, barges
vessels or containers, grain, salt or other like bulk cargo capable of being raised by
'mean's of an endless chain or band and bucket elevator, and the object is to provide
an elevator readily movable from place to place and easily and accurately adjustable
in position in a ships hold or elsewhere.
The invention consists essentially in the combination and novel construction of
a travelling derrick or crane, an endless band and bucket elevator, a motor or
motors and compensating driving gear. The travelling derrick is provided with a
jib capable of being moved in either direction in a plane from or to the vertical
position and fitted with a telescopic stay or stays adjustable at its or their lower
end or ends.. Suspended from a chain or rope passing over the jib is an elevator
fitted internally with endless ban is or chains and buckets and provided with two
legs hinged together, or one of them hinged, so as to be capable of movement nearer
together or further apart at their lower ends. Motion is given to the said endless
chains or bands and buckets by belt or other gearing operated by any suitable
motor: To allow for driving whilst the elevator gradually descends as the grain is
removed a compensating pulley or sheave, or sliding or joint connections are
interposed between the motor and the elevator.
DESCRIPTION OF THE DRAWINGS.
Fig 1 is a general elevation of the whole of the apparatus, and figs 2 and 3 a
plan and elevation respectively of the endless band and bucket elevator and driving
gear. 1 frame and platform of travelling derrick or crane carried on the rails 2
on the shed 3. A hydraulic or other motor is attached to the derrick frame at 4.
5 jib of derrick formed of two arms connected together at the top and hinged to
the frame at 6 with their lower ends some distance apart so as to move in a vertical
plane. 7 stays made in two pieces capable of sliding one within the other and
jointed at 8 one to each arm of the jib, and at 9 to the blocks 10 so as to be
capable of being moved to and fro in guides or on screws 11 on the frame 1. 12
chain or rope led from the winding drum 13 to the top of the jib.for raising and
lowering same, and 14 chain or rope led from winding drum 15 over the jib pulley
to the endless band and bucket elevator 16. Each winding drum may have a
separate motor but we prefer that only one motor should be used and that the
winding drums, should be, connected thereto by suitable driving gear. 17 ship
being unloaded.. The dotted lines show various positions of the jib and elevator
when the elevator is being removed from the ship or vessel to the frame and
platform of the derrick or crane. It will be obvious that the derrick or crane above
described is available for loading and unloading ships and vessels without the aid
of the band and bucket elevator; the elevator 16 is made with one leg 18 hinged
at 19 so that it may be moved nearer to or further apart from the other leg in order
to pass down each side of the screw tunnel or other obstruction. The endless bands
and buckets receive motion from the shafts 20 and pulleys and belts or chains 21.

page_text: The shafts 20 are fitted with bevelled toothed wheels 22 which take into a bevelled
wheel 23 on the shaft 24. The shaft 24 is carried by bearings on the elevator 16
and is provided with a bevelled wheel 25 which is free to slide on the said shaft 24
and gears with the bevelled wheel 26 on the shaft 27. The shaft 27. is carried in
bearings on the frame 28 and is actuated by any suitable mot or through the belt
or chain and pulley 29. A compensating pulley or other equivalent or suitable
device is employed to regulate the tension of the belt or chain which would
otherwise vary with the position of the band and bucket elevator. 30 is an
endless travelling band driven by the shaft 27 for conveying the grain from the
elevator to the quay.
The clevators are used in combination as follows:-The portable derrick or crane
carrying the band and bucket elevator is moved to the required place the jib is
raised so as to lift the elevator from its bed on the crane or derrick and the motion
of the jib is continued past the perpendicular position until the said elevator is
swung c'er of the crane or derrick and over the hatchway or other place where it
is to be used. The legs of the elevator are spread apart to the distance required to
pass say a screw shaft tunnel or other obstruction: the elevator is then lowered
to the required position and set in motion.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, wo declare that what
we claim is―
First The combination of a travelling crane or derrick, an endless band or
bucket elevator a motor and compensating driving gear substantially as setforth.
Second In combination with a portable clevator constructed as above setforth
the jib 5 capable of being moved as described.
Third An endless band or bucket elevator provided with one or two hinged legs
substantially as setforth.
سم
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