Improvements in Elevating and Dredging Apparatus.
Year: 1890

page_text: Date of Application, 26th Aug., 1890
Complete Specification Left, 25th May, 1891-Accepted, 27th June, 1891
PROVISIONAL SPECIFICATION.
Improvements in Elevating and Dredging Apparatus.
We, THOMAS ABBOTT, of 85 Northgate, Newark on Trent, and JOHN GEORGE
GOOSEY, of Blythe Hill, Catford, Kent, Engineers, do hereby declare the nature
of this invention to be as follows:-
Our invention consists in improved mechanical arrangements by which coal or
other loose material is collected raised and delivered into such receptacles as may
be desirable.
We preferably use two elevators of the endless band type working in connection
with each other and forming practically one clevator.
These bands are fitted at intervals with suitable rakes and buckets and are so
placed that the rakes and buckets on the lifting side of the bands act in cooperation
on the mass raised.
The construction of the rakes is such that if necessary the corresponding ones on
each band may overlap and yet pass each other without fouling.
Provision is made by means of springs fitted to the bearings of the drums around
which the bands pass whereby the distance between the two bands may be auto-
matically and temporarily increased and thus prevent jamming in the event of an
extra large piece of material being encountered.
The coal or other substance is collected together by the rakes and buckets at the
bottom of their circuit and carried up by them between the bands and the side
frames of the machine, and conveyed into automatic tipping shoots which deliver
the material as required.
The elevator bands are driven preferably by an engine attached to the machine
and actuated by steam hydraulic or other motive power.
As applied to the purpose of discharging coal from barges into ships the machine
is slung from a derrick attached to a self propelling pontoon provided with
appliances for generating motive power and in the case of steam or hydraulic the
power is transmitted through flexible tubes to the engine.
Dated this 26th day of August. 1890.
CARPMAEL & Co.,
Agents.
COMPLETE SPECIFICATION.
Improvements in Elevating and Dredging Apparatus.
We, THOMAS ABBOTT, of 85 Northgate, Newark on Trent, and Join George
GOOSEY, of Blythe Hill, Catford, Kent, Engineers, 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 :-
Our invention consists in improved mechanical arrangements by which coal or
other loose material is collected raised and delivered into such receptacles as may
be desirable.
We use two elevators of the endless band type working in connection with each
other and forming practically one elevator.
These bands are fitted at intervals with suitable rakes or buckets and are so
placed that the rakes or buckets on the lifting sides of the bands act in cooperation
on the mass raised.
Provision is made by means of springs fitted to the bearings of the drums around
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page_text: which the bands pass whereby the distance between the two bands may be auto-
matically and temporarily increased and thus prevent jamming in the event of an
extra large piece of material being encountered.
The coal or other substance is collected together by the rakes or buckets at the
bottom of their circuit and carried up by them between the bands and the side
frames of the machine and conveyed into automatic tipping shoots which deliver
the material as required.
The elevator bands are driven preferably by an engine attached to the machine
and actuated by steam, hydraulic or other motive power.
As applied to the purpose of discharging coal from barges into ships the machine 1
is slung from a derrick attached to a self propelling pontoon provided with
appliances for generating motive power and in the case of steam or hydraulic the
power is transmitted through flexible tubes to the engine.
In order that our said invention may be fully understood and readily carried into
effect we will proceed to describe the drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation one half in section of a machine in accordance with
our invention.
Figure 2 is an end elevation, also partly in section.
Figures 3 and 4 are side elevations showing the actuating gear for tipping
platforms in two positions.
The frame of the machine consists of two side plates with suitable cross
connections.
a is a motor
It is suspended from above by a rope or chain.
actuating the shaft 6 on which are secured a pair of worms c with right and left
hand threads. These worms gear into worm wheels d keyed on to shafts of driving
drums e.
The bottom guide drums fare fitted with bearings g carried in radial slides h.
These bearings are held in their normal position by the springs i.
Passing round the drums e and f and driven by e are a series of endless chains k.
At intervals in these chains links are inserted which are so constructed as to form
teeth projecting externally.
The tipping platforms m swing on the centres n and are connected by slotted
links o to crank discs p. These crank discs are made with teeth on the periphery
and driven by tooth wheels q keyed on to the shafts of the drums e.
Figure 3 shews the tipping platform in position for receiving the material and
the slotted link about to operate.
Figure 4 shews the platform tipped and the disc crank having made half a
revolution the slotted link is about to bring the platform back again.
The platform attached to the side frames is for the attendant to stand upon and
the various levers for controlling the machine will be accessible from here.
The machine is suspended from a crane or gantry and the motive power conveyed
by a flexible attachment to the motor.
As the drums e revolve they cause the corresponding rows of teeth in each set of
chains to approach each other on the underside as indicated by dotted lines in
Figure 1. The machine is gradually lowered into the material to be raised, and
this material is collected by the teeth and carried up between the side frames until
the top is reached when the material falls on to the tipping platforms 'm.
These platforms having received the material immediately tip it into buckets t or
other suitable receptacles assuming the position shewn in dotted lines Figure 1.
The now empty teeth pass down before the platforms return.
The teeth having passed, the platforms are returned to their position by the disc
cranks in time to receive the load carried up by the next set of teeth.
The machine thus digs its way into the material and delivers it continuously at
both ends.
1

page_text: The object of the radial slides is to allow the distance between the bearings g
to be increased by an automatic action when necessary to release any extra large.
piece of material that might be caught between the converging sets of teeth.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
1.-Elevating or dredging apparatus consisting in two endless chains or bands
with rakes or buckets which approach each other and collect the material at the
lower part, carry it up between them and deliver it at the top substantially as
described.
2. In combination with apparatus in accordance with the preceding claim, the
tipping platforms, receiving the material from the rakes or buckets, and dis-
charging it whilst retiring to permit the rakes or buckets to pass, substantially as
described.
3. Elevating and dredging apparatus substantially as represented in the annexed
drawings and having the motor engine driving the two endless chains or bands,
carried upon the suspended frame, in which the said chains or bands with their
rakes or buckets are mounted.
1001
THOS. ABBOTT.
JNO. G. GOOSEY.