dischar
Year: 1886

page_text: Date of Application, 30th Oct., 1886.
Complete Left, 2nd Aug., 1887.
Complete Accepted, 11th Oct., 1887.
BRICE TYDEMAN, Manor House Crossness Belvedere Erith Kent, Engineer do
hereby declare the nature of my said invention to be as follows:-
This Invention has for its object improvements in machinery for dredging lifting
discharging loading and conveying grain or other merchandise or material either
liquid or solid. At the present it is usual to raise grain from the holds of ships by
means of an endless series of buckets carried by bands or chains passing around
pulleys at the top and bottom. Hitherto in such machinery the driving power has
been applied through the axis of the upper drum or pulley; now according to my
invention I apply the power to one of 2 wheels drums or pulleys fitted in a movable
or sliding mouth piece, fitted to one side of framing or casing containing the series
of buckets. The mouthpiece is of the same width as the casing containing the
chain of buckets and by passing the chains over one pulley or drum and under
2 pulleys or drums working in the mouth piece the chain of buckets is made to
discharge the grain or material being raised into a shoot fitted in the mouth piece
at a fixed point, notwithstanding the elevator leg or casing is at liberty to descend
automatically into the grain or other material to be raised. Bosses are cast or formed
on the bearings of the 2 wheels and these bosses will rest in proper bearings provided
on framing arranged to stand on the ship's deck or combings of hatchway. The
framing on deck is arranged so that a shaft the whole length is fitted with wheels to work
several elevators by being geared to either of the 2 wheels in movable or sliding mouth-
piece and as the mouth piece is provided with clips to clip guides on side of elevator
casing the whole weight can be borne by bosses before mentioned resting in proper
bearings on frame-work fitted with the necessary gear for driving several elevators.
As the elevators are so easily fixed in position for working I employ in the case of a
deep ship elevators of different lengths so that short elevators can be first dropped

page_text: into the bearings and allowed to work until a depth is reached beyond which the
elevator would not descend when 2 others could be immediately placed in position
so that in case of a screw steamer, one could work on each side of the shaft tunnel
thereby ensuring the unloading of the ship regularly and in such manner as to
prevent any heeling over of the ship, or one leg or elevator could be stopped for
any time to effect the same purpose. By this arrangement of framing on the deck
or combing of hatchway combined with the movable or sliding mouthpiece the
elevators can be worked either by an engine placed on the deck of the ship or by
the ship's winch or by engine placed on a truck on rails on Quay or by means of
peculiar arrangements of endless chain with sliding bracket working on shaft with
wheel geared into wheel on Driving shaft of framing at one end, the other end
receiving motion from a fixed Engine or shaft fixed on shore. The shaft fitted to
framing would also work the conveying bands to convey the grain either to a hopper
to be weighed or to the Quay side into warehouse or shed. By means of the movable
or sliding mouthpieces the grain or other material is only raised the exact height
required so that no waste of power is entailed in raising the grain to the top of
the elevator leg and dropping it down to the required height of discharge; this being
the practice in all single elevators now in use.
To protect the buckets on side of elevator leg on which the movable or sliding
mouthpiece is fitted grooves are provided in which shutters of steel wood or Iron
can work the bottom end of top shutter being attached to top of mouth piece and
the top end of bottom shutter being attached to bottom of mouth piece and as the
elevator leg descends the shutters are worked automatically thereby keeping the
chain of buckets protected and encased for the whole length. By this system
the arrangement for taking up the wear of the chains can be fitted at the top and
not at the bottom as at present, thereby ensuring the buckets always working at
the same level with respect to the bottom of the elevator leg. Also by this arrange-
ment the grain or other material to be raised is discharged at a higher level
relatively with the wheel pulley or drum over which the chain of buckets are caused
to turn for the purpose of tipping their contents into a shoot fitted to the mouth
piece.
11
1
1000

page_text: I, BRICE TYDEMAN, of Manor House, Crossness, Belvedere, Erith, Kent, 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 has for its object improvements in machinery for dredging lifting
discharging loading and conveying grain or other merchandise or material either
liquid or solid.
At the present time it is usual to raise grain from the holds of ships by means of an
endless series of buckets carried by bands or chains passing around pulleys at the top
and bottom. Hitherto in such machinery the driving power has been applied through
the axis of the upper drum or pulley. Now according to my invention I apply the
power to one of two wheels drums or pulleys fitted in a moveable or
sliding mouth-
piece fitted to one side of framing or casing containing the series of buckets: the
mouth piece is of the same width as the casing containing the chain of buckets and by
passing the chains over one pulley or drum and under two pulleys or drums working
in the mouth piece the chain of buckets is made to discharge the grain or material
being raised into a shoot fitted in the mouth piece at a fixed point notwithstanding the
elevator leg or casing is at liberty to descend automatically into the grain or other
material to be raised. Bosses are cast or formed on the bearings of the two wheels
and these bosses will rest in proper bearings provided on framing arranged to stand
on the ships deck or combings of hatchway. The framing on deck is arranged so that
a shaft the whole length is fitted with wheels to work several elevators by being
geared to either of the two wheels in moveable or sliding mouth piece and as the
mouth piece is provided with clips to clip guides on side of elevator casing the whole
weight can be borne by bosses before mentioned resting in proper bearings on frame
work fitted with the necessary gear for driving several elevators. As the elevators
are so easily fixed in position for working I employ in the case of a deep ship elevators
of different lengths so that short elevators can be first dropped into the bearings and
allowed to work until a depth is reached beyond which the elevator would not descend
when two others could be immediately placed in position so that in case of a screw
steamer one could work on each side of the shaft tunnel thereby ensuring the
unloading of the ship regularly and in such manner as to prevent any heeling over
of the ship; or one leg or elevator could be stopped for any time to effect the same
purpose. By this arrangement of framing on the deck or combing of hatchway
combined with the moveable or sliding mouthpiece the elevators can be worked either

page_text: by an engine placed on the deck of the ship or by the ship's winch or by engine
placed on a truck on rails on quay or by means of peculiar arrangement of endless
chain with sliding bracket working on shaft with wheel geared into wheel on driving
shaft of framing at one end, the other end receiving motion from a fixed engine or
shaft fixed on shore; the shaft fitted to framing would also work the conveying bands
to convey the grain either to a hopper to be weighed or to the quay side into ware-
house or shed. By means of the moveable or sliding mouth pieces the grain or other
material is only raised the exact height required so that no waste of power is entailed
in raising the grain to the top of the elevator leg and dropping it down to the required
height of discharge this being the practice in all single elevators now in use.
To protect the buckets on side of elevator leg on which the moveable or sliding
mouthpiece is fitted grooves are provided in which shutters of steel wood or iron can
work the bottom end of top shutter being attached to top of mouthpiece and the top
end of bottom shutter being attached to bottom of mouth piece and as the elevator leg
descends the shutters are worked automatically thereby keeping the chain of buckets
protected and encased for the whole length. By this system the arrangement for
taking up the wear of the chains can be fitted at the top and not at the bottom as at
present, thereby ensuring the buckets always working at the same level with respect
to the bottom of the elevator leg. Also by this arrangement the grain or other
material to be raised is discharged at a higher level relatively with the wheel pulley
or drum over which the chain of buckets is caused to turn for the purpose of tipping
their contents into a shoot fitted to the mouth piece.
In the drawings hereunto annexed I have shown various views of a grain elevator
constructed as above described.
Figures 1 and 2 are front and side elevations of the elevator.
Figure 3 is a side elevation partly in section and on a larger scale of the mouthpiece
portion thereof.
Figure 4 is a front view partly in section of the parts shewn in Figure 3.
A is the framing or casing forming the elevator leg and containing the endless
series of buckets. B is the frame carrying the mouthpiece and which can be slidden
along the frame A-or can be clamped to it by the side clamp guides B¹ so that if
the timber frame to which the mouthpiece frame B is affixed is resting on the
combings of the hatchway of a vessel the whole weight of the leg may be supported
by this frame. C and D are the two wheels or drums at the top and bottom of the
frame A over which the endless chain of buckets E passes. The upper one C is as
shown made adjustable to allow for taking up slack in the chain as the chain wears.
This is one of the advantages arising from constructing an elevator in the manner
herein described-in other elevators as heretofore made the slack could only be taken
up by moving the bearings of the lower pulley or drum so that the distance of the
buckets from the lower end of the elevator leg A was necessarily varied each time
that slack was taken up-whereas by taking the slack up at the top the distance
will always remain the same. F, G, H, are three chain wheels over and under which
the endless chain E is conducted as shewn by dotted lines in Figure 3. The axes of
these chain wheels are carried in bearings on the sliding frame B. The axis of the
wheel F has also upon it a toothed wheel I into which gears a pinion J on a driving
axis K which may be driven by an endless chain working over a chain wheel L upon
it or in other convenient way.
In the construction shown in the drawing an endless belt M is provided for
conveying away grain which is discharged on to it from the buckets as they pass over
the top of the wheel F but other arrangements for conveying away the grain might
be adopted.
The pulley N over which the endless belt M passes is driven by an endless chain or
otherwise from an axis O which is itself driven from the axis of the chain wheel F in
the manner shown in Figure 4.
The elevator leg may as above stated be provided with sliding jointed shutters of
the ordinary well known construction so as to form a close casing for the buckets
to work in but in most cases this will not be required.

page_text: 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 construction of elevator apparatus substantially in the manner herein before
described and illustrated in the drawing annexed.
2. The combination of an elevator leg carrying an endless chain of buckets with a
frame capable of being slidden along the leg and carrying wheels over and under
which the endless chain of elevating buckets is made to pass so as to empty the
buckets substantially as described.