IMPROVEMENTS. IN MACHINERY OR APPARATUS FOR RAISING OR ELEvating Corn, MINERALS, COAL, GRAVEL, SAND, OR OTHER MATERIALE, APPLICABLE FOR DISCHARGING OR LOADING VESSELS, DREDGING, PUMPING, AND OTHER SIMILAR PURPOSES
Year: 1873

page_text: LETTERS PATENT to Percy Keen, of Coles' Upper Wharf, Shad
Thames, in the County of Surrey, and John Denec, of Mark Lane,
in the City of London, for the Invention of "IMPROVEMENTS. IN
MACHINERY OR APPARATUS FOR RAISING OR ELEvating Corn, MINERALS,
COAL, GRAVEL, SAND, OR OTHER MATERIALE, APPLICABLE FOR DISCHARGING OR
LOADING VESSELS, DREDGING, PUMPING, AND OTHER SIMILAR PURPOSES."
Sealed the 11th July 1873, and dated the 12th May 1873.
PROVISIONAL SPECIFICATION left by the said Percy Keen and
John Dence at the Office of the Commissioners of Patents, with
their Petition, on the 12th May 1873.
We, PERCY KEEN, of Coles' Upper Wharf, Shad Thames, in the
County of Surrey, and JOHN DENCE, of Mark Lane, in the City of
London, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN MACHINERY OR APPARATUS FOR RAISING OR ELEVATING CORN, MINERALS,
COAL, GRAVEL, SAND, OR OTHER MATERIALS, APPLICABLE FOR DISCHARGING OB.

page_text: LOADING VESSELS, DREDGING, PUMPING, AND OTHER SIMILAR PURPOSES," to be as
follows:-
This Invention relates, first, to improvements in machinery or appa-
ratus for the purpose of raising or clovating corn, minerals, coal, gravel,
sand, or other materials, such apparatus being applicable for discharging 5
or loading vessels, dredging, pumping, and other similar purposes.
Our Invention has for its object improved means of raising and low-
ering, advancing, or drawing back, and also in giving radial motion to
the "clevator" or machine, so that though suspended at a fixed point it is
capable of being adjusted to work in front of or on either side of the 1
point of suspension.
Also in constructing the elevator or machine that all the moveable
parts are counterbalanced, a compensating arrangement being provided,
so that when working out of a barge or vessel on a tidal river or water
where there may be motion (continuous or sudden, such as passing of 1
steam boats) the machine may be able to adjust itself without doing it
any injury or interfering with its continuous working.
The machine may be driven by means of shafts and gearing or belts,
or may be constructed to carry its own driving power by having a small
engine attached and arranged to travel with it, which engine may be a
actuated by steam, compressed air, water, gas, or other motive power;
and when using compressed air, the exhaust may be conveyed to the
delivery spout of the elevator and used as a blast for improving the
condition of the corn, seed, or other substances passing over it.
According to our improvements a strong column or pillar is supported
in a vertical position at either or both ends by strong brackets or other
convenient means, this column is turned truly cylindrical, and upon it
slides a carrage which also moves round it furnished at either sido with
a projecting arm, stud, or gudgeon, each of these projections is encircled
by an eye in the lower end of a jib or shear leg moving on the stud or
gudgeon. The jib may be of any convenient length or shape according
to the kind of work to be done. From a point near the upper end of
the jibs, and between them, is hung a trunk case or frame carrying an
clevator consisting of a number of buckets or other receptacles fixed to
belts or chains, as is well understood.
The driving power is communicated to the clevator when gearing is
employed in the following matter :-A driving shaft is placed vertically

page_text: near to the central column or guide parallel with it, which shaft gives
motion to a spur wheel which slides up and down on it being carried by a
bracket projecting from the carriage (which travels on the column and
carries the jibs). This spur wheel gives into another spur wheel revolving
horizontally round the base of the sliding carriage, and to this spur
whool is bolted a level wheel which gears into another level wheel
carried on a stud projecting from the centre of one or both as required,
of the side arms of the sliding cariage and to the back of this wheel is
attached another level wheel gearing into a small one on the end of a
O light shaft carried in bearings bolted on to the side of the jib. At the
further end of the shaft there is another level wheel gearing into onc
on the end of the spindle of the drum which gives motion to the buckets
on the head of the elevator.
>
The carriage is raised and lowered by means of a chain or chains
passing over sheaves on the upper bucket and near the lower ends of
the chains, and on them is placed a heavy weight, nearly equal to the
weight the carriago has to sustain (the suspending chain being fur-
nished with an elastic safety link or other compensating spring to
prevent injury to the apparatus by any sudden jerk); the chain is then
continued on to a winch barrel by which means the carriage can be
raised, lowered, or adjusted with casc. Tho head of the clevator is also
supported by a chain passing over a sheave placed some distance above
those just described and weighed and worked in the same manner.
will thus be seen that by counter-weighting all the parts in this manner.
that on the slightest upward pressure being applied to the bottom of
the elevator, the whole machine slides readily up the guide column; or in
case the craft moves off from the quay or wharf the jibs fall outward'
and so keep the machine up to its work. Or if the craft surges
backward or forward the whole machine slips round either to the
right or left on the central column, thus adapting itself to any position
required.
It
Another part of this Invention consists in substituting for the driving
gear previously described a more direct application of the power for
actuating the apparatus. For this purpose the central column is tabular,
having a passage formed down its centre the whole length, and in this.
passage a pipe or tube is arranged to slide, passing out at the top.
through a stuffing box; it is then bent over and continued down outside
in front of the column to the sliding carriage, and is fixed to it, the sliding

page_text: carriage communicating its own vertical or radial motion to the centrál
tube or pipe. In the body of the carriage a passage is formed leading
from the tube or pipo out through the centre of the side arm or arms. A
tube or pipe passes along the side of the jib, the lower end of which
terminates in an elbow, the return picce of which enters the side arm of
the carriage through a stuffing box, and in which it is free to oscillate.
with the motion of the jib. The other end of the tube or pipe com-
municates with a convenient or suitable form of motive power engine
bolted on to the side of the jib, or formed in the head of the elevator
or jib, which engine drives directly the drum that gives motion to the
endless chain of buckets or carries.
The grain or other material is delivered from the head of the clevator
through a spout made in several lengths which slide one within the
other into a hopper, placed by preference centrally with the fixed
column, and under its lower end the spout is attached to the cover of
this hopper or box, and the cover is made to revolve on top of the hopper
so as to accommodate itself to the position that the clevator may assume.
In cases where the delivery spouts assume a horizontal or nearly hori-
zontal position, a worm, endless chain, band, or other carrier may be
applied thereto in order to convey or deliver the corn or other material
therefrom.
These improved arrangements of clevators may be applied to existing
buildings, or vessels specially constructed may be fitted up with them
and propelled by machinery, so that they can move about and go along-
side of vessels, steamers, barges, or elsewhere for the purpose of loading,
discharging, or transhipping.
Patent Office on the 12th November 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, PERCY 30
KEEN, of Coles' Upper Wharf, Shad Thames, in the County of
Surrey, and JOHN DENCE, of Mark Lanc, in the City of London, send
greeting.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, PERCY 30
KEEN, of Coles' Upper Wharf, Shad Thames, in the County of
Surrey, and JOHN DENCE, of Mark Lanc, in the City of London, send
greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twelfth day of May, in the year
of our Lord One thousand eight hundred and seventy-three, in the
thirty-sixth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto us, the said Percy Keen and John
Dence, Her special license that we, the said Percy Keen and John
Dence, our exccutors, administrators, and assigns, or such others as
we, the said Percy Keen and John Dence, our exccutors, adminis-
trators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise
and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS
IN MACHINERY OR APPARATUS FOR RAISING OR ELEVATING CORN, MINERALS, COAL,
GRAVEL, SAND, OR OTHER MATERIALS, APPLICABLE FOR DISCHARGING OR LOADING
VESSELS, DREDGING, PUMPING, AND OTHER SIMILAR PURPOSES," upon the con- .
dition (amongst others) that we, the said Percy Keen and John
Dence, our executors or administrators, by an instrument in writing
under our or their hands and scals, or under the hand and seal of
one of us or them, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to
be performed, and cause the same to be filed in the Great Scal. Patent
Office within six calendar months next and immediately after the date
of the said Letters Patent.
NOW KNOW YE, that I, the said John Dence, on behalf of myself
and the said Percy Keen, do hereby declare the nature of the said In-
vention, and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement
thercof, that is to say :-
This Invention relates, first, to improvements in machinery or
apparatus for the purpose of raising or elevating corn, minerals, coal,
gravel, sand, or other materials, such apparatus being applicable for
discharging or loading vessels, dredging, pumping, and other similar
purposes.
Our Invention has for its object improved means of raising and
lowering, advancing, or drawing back, and also in giving radial motion
to the "elevator" or machine, so that although suspended at a fixed

page_text: The driving power is communicated to the clevator when gearing is
employed in the following manner:-A driving shaft e is placed or
arranged vertically near to the central column or guide a, parallel with
it, which shafte gives motion by a slot and feather to a spur wheel e¹
which slides up and down on it, being carried by a bracket 6ª projecting
from the carriage 6 (which travels on the column a and carries the
jibs c). The spur wheel e¹ gears into another spur wheel b³ revolving
horizontally round the base of the sliding carriage b, and to this spur
wheel 6 is bolted a bevel wheel b' which gears into another bevel
wheel & carried on a stud projecting from the centre of one (or both as
required, of the side arms of the sliding carriago b; and to the back of
this wheel is attached another bevel wheel 6' gearing into a small bevel
wheel c³ on the end of a light shaft c¹ carried in bearings bolted on to
the side of the jib c. At the upper end of the shaft c¹ there is another
bevel wheel c³ gearing into a bevel wheel d³ on the end of the spindle of
the drum which gives motion to the buckets on the head of the
clevator d. The carriage b is raised and lowered by means of a chain or
chains passing over sheaves f¹ on the upper bracket a¹, and near the
lower ends of the chains fand on them in accordance with our improve-
ments is placed or arranged a counterbalance weight ƒ³ nearly equal to
the weight the carriage 6 and what it has to support (the suspending
chain being furnished according to our improvements with an clastic
safety link or other compensating spring to provent injury to the
apparatus by any sudden jerk); the chain is then continued on to a winch
barrel by which means the carriage 6 can be raised, lowered, or adjusted
with case.
The head of the elevator is also supported by a chain g
passing over a sheave or sheaves g¹ placed some distance above those just
described, and weighted and worked in accordance with our improvements
in the same manner as the chain of the carriage b. It will thus be seen
that by counter weighting all the parts in this manner according to our
Invention, that on the slightest upward pressure being applied to the
bottom of the clevator d the whole machine slides readily up the guide
column a; or in case the craft moves off from the quay or wharf, the
jib c falls outwards and so keeps the machine up to its work. Or if the
craft surges backward or forward, the whole machine slips round cither
to the right or left on the central column, thus adapting itself to any
position required.
Another part of our Invention consists in substituting for the d.

page_text: actuating the apparatus. For this purpose the central column a is made
tubular as shewn at Figure 3, having a passage formed down its centre
the whole length, and in this passage a pipe or tube h is arranged to
slide, passing out at the top through a stuffing box h¹ and guide h*; it is
then bent over at he and continued down outside in front of the collumn
to the sliding carriage 6, and is fixed to it, the sliding carriage 6 com-
municating its own vertical or radial motion to the central tube or
pipe h, h. In the body of the carriage ba passage is formed leading
from the tube or pipe h out through the centre of the side arm or
arms b¹. A tube or pipe i passes along the side of the jib c, the lower 1
end of which terminates in an elbow the return piece 21 of which enters
the side arm 6' of the carriage 6 through a stuffing box, and in which it
is free to oscillate or move with the motion of the jib c. The other end
of the tube or pipe i communicates with a convenient or suitable form
of motive power engine (which we have not thought necessary to shew 1
in the Drawings) bolted on to the side of the jib or formed in the head of
the clevator or jib d, which engine drives directly the drum that gives
motion to the endless chain of buckets or carriers.
The grain or other material is delivered from the head of the elevator
through a spout j made in several lengths which slide one within the a
other into a hopper k placed (by preference) centrally with the fixed
column, and under its lower end (or above its upper end) the spout is
attached to the cover ¹ of this hopper or box k, and the cover is made
to revolve on top of the hopper so as to accommodate itself to the position
that the elevator d may assume.
In cases where the delivery spouts J assume a horizontal or nearly
horizontal position, a worm, endless chain, band, or other carrier may be
applied thereto in order to convey or deliver the corn or other material
therefrom.
These improved arrangements of elevators may be applied to existing ;
buildings, or vessels specially constructed may be fitted up with them
and propelled by machinery so that they can move about and go along
side of vessels, steamers, barges, or elsewhere for the purpose of loading,
discharging, or transshipping.
Having thus described the nature of our Invention, and the manner
of performing or carrying the same into practice, we would remark that
we do not intend to confino ourselves to the particular arrangement of

page_text: apparatus hercin-before described and shown in the Drawing hereunto
annexed so long as the special features and novel character of any part
of our Invention is retained, but what we claim is,―
First. The improved arrangement and combination of machinery or
apparatus for raising or elevating corn, minerals, and other materials
applicable for the purpose of discharging or loading vessels, dredging,
pumping, and other similar purposes, substantially in the manner
herein-before described and shown with reference to Figures 1 and 2 of
the Drawings hereunto annexed.
We also claim the improved arrangement and combination of
machinery and apparatus for the above-named purposes, substantially as
herein-before described and shewn with reference to Figure 3 of the
Drawing hereunto annexed.
In witness whercof, I, the said John Dence, have hereunto set my
hand and seal, this Eleventh day of November, in the year of our
Lord One thousand eight hundred and seventy-three.
Witness,
J. G. TONGUE,
Patent Agent,
34, Southampton Buildings,
Chancery Lane.
W.C.
JOHN DENCE. (L.S.)