" MENTS IN APPARATUS FOR THE PREVENTION OR RELIEF OF SEA-SICKNESS
Year: 1885

page_text: I WILLIAM DODSHON of 129 Gloucester Road N.W. London in the county of
Middlesex Jeweller, do hereby declare the nature of my invention for IMPROVE-
"
MENTS IN APPARATUS FOR THE PREVENTION OR RELIEF OF SEA-SICKNESS
as follows:-
"
to be
This invention relates to improvements in and connected with my applications
for patents for improvements in apparatus for the prevention of sea-sickness dated
respectively the 2nd of November 1884 N° 15824 and the 25th of August 1885
No 10044.
According to the first of the said former inventions a resisting surface or body in
the form of a sphere, by preference; the sphere is placed in the water below the
ship so as to be situated in water that has less rising and falling motion than the
ship itself whereby electrical contacts are made or variations in the tension or
undulations of the current are effected for the purpose of causing the apparatus to
work with the rising and falling of the ship.
The reason for using a sphere is that when a ship pitches with its head down-
wards, or pitches with its stern downwards or rolls, it always presents the same
resisting surface to the water in the direction of the line of motion of the ship but
it has the disadvantage of requiring to be placed deep in the water in order that
the sphere may be small so as not to cause much resistance to the water in the line
of motion of the ship and yet have sufficent surface to work the apparatus by the
rising and falling of the ship.
The object of the first part of this invention is to enable a surface of least or
minimum resistance to the water in the line of motion of the ship to be used and
at the same time a surface of maximum resistance to the water in the direction of
the rise and fall of the ship This is effected by making the resisting body in the
form of a flat fish, such as a sole, for instance, with a knife edge all round or it may
be a long oval. This body may be a case containing mercury or other heavy metal
or it may be a solid plate of metal, and mercury may instead of being in the resisting

page_text: body may be placed in the spindle which may be formed with an annular space to
contain it the line or wire that works the electrical apparatus passing through a
tube in the centre of the spindle, the flat surface is placed in a horizontal plane.
This resisting surface or body is balanced on its pivots in such a manner that
the centre of gravity is below the points of support and so that it will remain
horizontal when at rest like a scale beam but it is not supported from its centre of
figure that is the head is heavier than the tail end; or the resisting surface may
be a diaphragm of thin metal or other suitabe substance and the line that works
the pressure maker is attached to the centre of the diaphragm the edge of the
diaphragm may be supported by being placed between two metal rims which
should be knife edges.
If thought desireable this arrangement may be placed within a shield or case to
be explained hereinafter.
".
Such a surface if mounted as the sphere is mounted would present an inclined
surface to the water in the line of motion of the ship as the ship pitches one way
or the other, that is head down or stern down, This inclined surface would produce
false actions of the electrical apparatus. The next part of this present invention
relates to a means of preventing the above objection by connecting the resisting
surface or body to the tube or spindle by a ball and socket joint or a kind of hooks
joint whereby it is allowed to move in a vertical as well as in a horizontal plane, a
long bar is attached to the outer tube for the purpose of affording some protection
to the resisting body and at the same time allowing the wire ropes to hold the
whole apparatus more steady in position, a chain or line may be connected to the
resisting body and to any suitable part such as the bar to prevent it from turning
in any direction further than is necessary.
This ball and socket or hook joint connection may be applied or used for the
shield or case for protecting the resisting surface or body from the force of the
water as described in my application for a patent accepted Sep. 12, 1885 and dated
Aug. 25, 1885 N° 10044 When the resisting body is not protected by a case some
means must be adopted to prevent the pressure of the water from causing too much
friction so that the resisting body may move freely, one plan of doing this is by
letting the spindle or bar on which the resisting body is mounted press against a
large wheel the axil of which rest upon friction wheels, or a thin steel or other
wire attached to the resisting body or the spindle at one end and the other end of
the wire connected to some fixed point in front, this wire may be enclosed in a
tube. The friction parts of these apparatus may be made of phosphor bronze or
Muntz metal or other metal that will keep clean in sea water.
Another part of this invention relates to means by which the pressure maker
and the resisting surface may be connected together, that is placed within the fish
or cigar shaped case that is jointed to the tube that takes this part or holds it at
the proper depth below the ship. One plan is as follows a long oval hoop has
streched across it a diaphragm top and bottom of metal or india rubber or other
suitable material and a partition between the two diaphragms after the manner of
two tambourines placed one each side of a board the parchment being uppermost, in
the middle of each diaphragm is a piece of metal These are in electric connection
with the electro magnets that work the valves of the engine. On each side of the
partition is fixed a number of metal points, platinum for instance, which are
electrically connected by line to the electric generator I may slightly modify this
arrangement of the electrodes or contact points.
The peices of metal on the diaphragms are adjustable in relation to the points by
screws for setting this part in working order.
I have found that by adjusting the springs that keeps the armature between the
poles of the electro-magnets that I can get the armature to act in unison with the
motion of the waves without regulating the contacts or pressure maker if this
latter has once been properly set This is effected by a screw that holds the springs
and the armature in such a position between the poles as enables it to work with
7

page_text: cquer cast to one magnet as to the other, resistance coils may be used for the same
purpose..
By the above arrangement all mechanical connection with the ship is avoided.
The conducting wires pass down the tube instead of the line or cord.
If thought desireable the diaphragm if made of metal may be made more elastic
by slits or cuts. If the double diaphragm is made of some elastic material such as
indiarubber a flexible tube may be connected with each air space These two tubes
are taken up the tube that connects this part with the ship at the end of each tube
is a little drum that is connected with each end of the carbon or other lever as the
case may be; now when any pressure is put upon one of the elastic diaphragm in
the water it will communicate that pressure by means of the air in the flexible
tube to the drum and to the lever and thus works the electrical apparatus one
diaphragm acting for the fall of the ship the other for its rise.
Another modification is to have a single diaphragm, a peice of platinum or other
metal placed in its middle is in connection electrically with the electric generator
in just the same way as the carbon lever is in the before mentioned application for
a Patent No 15824 Nov. 2nd 1884 In fact the arrangement of the whole circuit
is the same but the movements of the diaphragms work the current directly
instead of the resisting surface acting through a cord or line on the lever, on each
side of the diaphragm is placed a number of platinum or other metal points one set
on one side is in electric connection with one of the magnets that work the valves
of the engine and the other set of points is in electric connection with the other
magnet, The bottom set is in connection with the magnet that causes the engine to
unwind, These sets of points both top and bottom are adjustable by set screws.
When the double diaphragm is used made of india-rubber the two spaces may
be kept water tight, and metal, platinum, or carbon contacts employed on the make
and break plan. With the single diaphragm, and with the double one also the
current may be worked by increasing or diminishing its tension as explained in
my application dated November 2nd 1884 N° 15824, that is by the peice of metal
on the diaphragm approaching or receding from the points The rise and fall of
tension results from the varying distance or space between the electrodes which
space is made semi conducting by the water that is between the electrodes, of course
the partitions must be insulated from the diaphragms in one case and the diaphragm
from the metal points in the other as it will be understood that the partition takes
the place of the carbon lever in the double diaphragm plan and the diaphragm
itself takes the place of the lever when the single diaphragm is used. These
diaphragms may be weighted in the middle with a case containing mercury or
other heavy metal,
The double diaphragm plan may be compared to the lever pressure maker in this
way-The metal peices in the middle of the diaphragm stand in the same relation
to the electrodes or contact points as the carbon blocks do to the carbon lever with
this exception that whereas with the carbon lever plan the lever approachs or
receds to or from the blocks, with the diaphragms it would be like the blocks
approaching or receding from the lever the lever being fixed.
The shield or case employed to protect the diaphragm and other parts from the
rush of the water may have a number of small holes at the top and bottom in
about the middle of the case to allow the water to press on the diaphragms as the
ship rises and falls or they may be narrow slits, by preference, running across the
shield.
Another modification is to have two heavy metal bells fixed one at each end of a
pivoted lever the mouths or open ends of the bells are placed one up and the other
down and the openings are closed by sheets of india rubber which encloses air in
the bells and keeps them water-tight, This is enclosed within the fish or cigar
shaped case or shield. I may mention that this case is always jointed as before
explained. Now when the ship rises the pressure of the water compresses the air
in the bell that has its india-rubber diaphragm uppermost The air is compressed

page_text: and that end of the lever falls as it becomes the heaviest and when the ship falls
the same action takes place on the other end of the lever and other bell. I have
called them bells but they should be short hollow cylinders with flat bottoms, by
this means the tension of the current is regulated or contacts made and broken as
before explained.
In my application for a patent N° 15824 November 2nd 1884 a plan is shewn of
passing the tube that holds the resisting surface or body in position through the
bottom of the ship, part of this invention relates to an improvement in this part,
instead of a stuffing box a tube large enough to allow the tube that contains the
conducting wires or the cord as the case may be to be passed down it This tube
may be rivited to the bottom of the ship and forms part of the ship, and extends
upwards to any of the decks or above water mark.

page_text: Sea-sickness.
I WILLIAM DODSHON of 129 Gloucester Road N.W. London in the County of
Middlesex Jeweller 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 relates to improvement in and connected with the patent granted
me, dated 2nd December 1884 N° 15824, and my application for a patent dated
25th August 1885 N° 10044 for apparatus for the prevention or relief of sea-
sickness.
According to the first of the said former inventions a resisting surface or body
in the form of a sphere is placed in the water below the ship so as to be situated
in water that has less rising and falling motion than the ship itself whereby.
electrical contacts are made and broken for the purpose of causing the apparatus
to work with, or in unison with the rising and falling of the ship.
The object of having the resisting body in the form of a sphere is that when a
ship pitches with its head downwards, or pitches with its stern downwards, or rolls,
the sphere always presents the same amount of resisting surface to the water in the
direction of the line of motion of the ship but it has the disadvantage of requiring to
be placed deep in the water in order that the sphere may be small so that it will not
offer much resistance to the water in the line of motion of the ship and yet it must have
a surface large enough to work the apparatus by the rising and falling of the ship.
The object of the first part of this invention is to overcome the fault of the
sphere by substituting for it a body in the form of a flat fish, such as a sole, for
instance, with a knife edge all round, or it may be a long oval, this body may be
a case containing mercury or other heavy metal; such a body will offer a surface
of least or minimum resistance to the water in the line of motion of the ship and
at the same time a surface of maximum resistance to the water in the direction of
the rise and fall of the ship. The flat surface is placed in a horizontal plane, this
resisting body is balanced on its pivots in such a manner that the centre of gravity
is below the points of support, and so that it will remain horizontal when at rest
like a scale beam, and it is not supported from its centre of figure, that is, the head
is heavier than the tail end.
Such a body if mounted in the manner shewn for the sphere would present an
enclined surface to the water in the line of motion of the ship as the ship pitches
one way or the other, that is head down or stern down.
This enclined surface would produce false actions of the electrical apparatus.
The second part of this present invention relates to a means of preventing the
above named false actions by connecting the resisting surface or body to the tube
and spindle by a joint that allows it to move in a vertical as well as in a horizontal.
plane.
When the resisting body is not protected by a case some means must be adopted
to prevent the pressure of the water from causing too much friction so that the
resisting body may move freely.
One plan of doing this is by letting the spindle or bar on which the resisting
body is mounted press against a large wheel the axil of which rests upon friction
wheels. Or a thin steel or other wire attached to the spindle at one end and the
;

page_text: other end of the wire connected to some point in front, this wire may be enclosed
in a tube. The friction parts of these apparatus may be made of phosphor bronze.
A long slit or opening allows the case to move without touching the wire.
The third and most important part of this invention relates to means by which
the contact maker and the resisting surface may be combined, that is placed within
a fish or cigar shaped case.
One plan is as follows a diaphragm of metal, indiarubber or other suitable
material is stretched across a long oval hoop or frame, The diaphragm if made of
metal may be made more elastic by slits or cuts, a piece of platina or other metal
placed in its middle is in connection electrically with the electric generator in just
the same way as the carbon lever is in the before mentioned patent No 15824
Dec. 2, 1884 in fact the arrangement of the whole circuit is the same but the
movements of the diaphragms work the current directly instead of the resisting
body acting on the lever through a cord or line. On each side of the diaphragm
is placed a number of platinum or other metal points or single contacts points may
be used, one set on one side is in electric connection with one of the magnets that
work the valves of the engine, and the other set of points is in electric connection
with the other magnet, the bottom set is in connection with the magnet that causes
the engine to unwind, or cause the saloon or other apparatus to fall in relation to
the ship These points are adjustable by set screws.
The third part of this invention may be modified by having a diaphragm top
and bottom of the hoop or frame with a partition between the two diaphragms
after the manner of two tambourines placed one each side of a board the parchment
being uppermost.
If the diaphragms are of a nonconducting material thin strips of metal must be
fitted to convey the current from the contact pieces to the binding screws, in the
middle of each diaphragm is a piece of metal These are in electric connection
with the electro magnets that work the valves of the engine. On each side of the
partition is fixed a metal point, or more than one, platinum for instance, these are
electrically connected by line to the electric generator.
The pieces of metal on the diaphragms are adjustable in relation to the points
by screws for setting this part in working order, of course the partition and points
must be insulated from the diaphragms in the case of the double diaphragm, and
the metal points in the other, as it will be understood that the partition and the
points take the place of the carbon lever in the double diaphragm plan, and the
diaphragm itself takes the place of the lever when the single one is used.
These diaphragms may be weighted in the middle with a case containing mercury
or by bars of other heavy metal.
The double diaphragm plan may be compared to the lever contact maker in this
way The metal pieces in the middle of the diaphragms stand in the same relation
to the contact points as the carbon blocks do to the carbon lever with this exception
that whereas with the carbon lever plan the lever makes or breaks contact with the
blocks, with the diaphragms it would be like the blocks making or breaking contact
with the lever, the lever being fixed.
The shield or case employed to protect the diaphragm and other parts from the
rush of the water has a number of small holes at the top and bottom in about the
middle of the case to allow the water to press on the diaphragmns as the ship rises
and falls This case is connected to the tube that holds it in position below the ship
by a joint that allows it to move in a vertical and a horizontal plane, The conducting
wires pass down the tube.
By this third part of my invention all mechanical connection with the ship is
avoided.
I have found that by adjusting the spring or springs that tend to keep the
armature between the poles of the electro magnets that I can get the armature to
act in unison with the motion of the waves without regulating the contacts if they
have once been properly set, This is effected by a screw and enables the armature
to work with equal ease to one or the other magnet, resistance coils may be used

page_text: for the same purpose This can be done by putting a rheostat in the circuit with
one of the electro magnets the said circuit having less resistance than the circuit
in which the other electro magnet is placed The armature is adjusted by working
the handle of the rheostat.
If the double diaphragms are made of indiarubber a flexible tube may be con-
nected with each air space These two tubes are taken up the tube that connects
this part with the ship; at the end of each flexible tube is a drum that is lightly
in contact with one end of the carbon, or other, lever as the case may be, now when
any pressure is put upon one of the elastic diaphragms in the water it will commu-
nicate that pressure by means of the air in the flexible tube to the drum and to the
lever, and thus work the electrical apparatus one diaphragm acting for the fall of
the ship the other for its rise.
In my application for a patent No 15824 Dec. 2 1884 a plan is shewn of passing
the tube that holds the resisting surface or body in position through the bottom of
the ship Part of this invention relates to an improvement in this part, instead of
a stuffing box a tube large enough to allow the tube that contains the conducting
wires, or the cord as the case may be, to be passed down it, This tube may be
rivitted to the bottom of the ship and forms part of the ship, and extends upwards
to any of the decks or above water mark.
It is better to make the tube large enough to contain the fish shaped case which
may be drawn up into it when the ship is in shallow water or for other purposes.
Fig. 1 shews a section of the sole shaped resisting body, and the spindle and
other parts. Fig. 2 is a plan of the resisting body, 1 is the spindle to which the
line 2 is attached that is connected to the electrical apparatus on board the ship.
6 is a frame that carries the friction wheels 28, 29, 30, 28, 30, This frame swivels
on the tube 5, the amount of play being limited by the stop 31, The case 7 turns
on the pin 7, balanced by the loading 8 the other space to be filled with water.
The stop 9 and rollers 3 and 4 keep the spindle in position. 6º, and 6b, are rollers
that work against the frame 6°.
Figs. 3 and 4 shews the plan in which the friction wheels are dispensed with the
pressure on the case being transfered by the line 50b to the point 50. 50° and 50 is
one frame the end 50 serves as a vane to keep the part 50° in front, The arm 52
keeps the case 7 in line with the vane 50. 50³ moves laterally with the arm 50°.
Both these plans operate by producing a tension on the line 2 when the ship
rises and relaxing the line when the ship falls, thereby making or breaking contact
in an electrical apparatus on board the ship as explained in my former specification
hereinbefore refered to.
This plan should be used with a straight tube shewn in Fig. 12 to be explained
hereinafter.
Fig. 5 shews in section the single diaphragm contact maker in the fish shaped
case, Fig. 6, is a plan.
Fig. 7, shews the outside, Fig. 8, is a section through A. B Fig. 5. The bar 11
and tube 12 is held in position below the bottom of a ship as shewn in specification
No 10044, 1885 or in a manner to be explained hereinafter.
The tube 13 and fork 27, the fork may be outside if prefered, turns in the
tube 12 and with it the case 14 and its contents. This horizontal movement is
limited by the stop 12" Fig. 16 which shews the half cap 12b, removed.
Fig. 11 is a section through D, E, Fig. 5. Two half caps hold the tube 13 in
place in the tube 12, this tube may be entirely outside the ship as shewn in my
before said former specification or it may be as shewn in Fig. 12 to be explained
hereinafter.
The case 14 turns on a pin 33 the movement being limited by the sides of the
opening 13 which should have a rim of metal round it to make it strong, The
piece 26 fills this opening at all angles, The case is balanced by the lead weights 25,
18 and 19, 25 balances the tail end, 18 and 19 serve to keep the case horizontal.
16 is a metal diaphragm screwed down at one end and resting between rollers
at 36 This diaphragm should fit the frame 15 closely but not touching so that the

page_text: water may not pass too easily, or the diaphragm might be secured all round the
frame, and when it is secured in that manner it may have long slits on each side
running paralled with the long axis of the diaphragm but with these plans the
diaphragm requires to have a larger area, again the case and diaphragm might be
round, The case would then only require a heavy bottom weight, but I prefer the
fish shape. The area of the diaphragm should be about two square feet.
17 is a case fixed to the diaphragm containing mercury..
It will be seen that the frame and the diaphragm divide the interior of the case
into two compartments.
The cable 76 contains three insulated conducting wires 17, 18 and 19. The
ends are secured to the three binding screws 17, 18, 19. The axle or pin 33 passes
through a vulconite tube 34, other suitable non conducting material may be used,
This passes through the metal rings forming part of the binding screws 17, 18, 19,
and the metal rings on the ends of the connecting bars 17, 18, 19. These bars
have binding screws on the ends at a, b, c, each pair of metal rings are in contact,
and each pair is insulated by a short vulconite tube 17b 18, 19, and by the
tube 34, The whole is kept in contact by the spiral spring 32.
Fig. 9 is a section of this part on a larger scale. The bar 19 is connected to the
diaphragm at 19. The bar 17ª, is connected to the contact point 39 as shewn by
the dotted lines; the bar 18" is connected to the contact point 38 These contact
points are made of platina and held in screw clamps, one of which is shown at 35
Fig. 10, on two non conducting bars across the frame 15. 38 is the top bar, 15ª is
the platina contact piece or pieces, of course other kinds of metal can be used for
the contacts. The contact screws are carried to the outside of the case the end
fitting in vulconite cups 19 and 20 so that they can be adjusted from the outside.
I prefer to make all the metal parts that are in the water of one kind of metal,
for instance all gun metal, or all brass, excepting the contact points.
The action of the apparatus is as follows-when the ship rises by the rising of
the waves the water presses on the diaphragm through the holes a, b and others
about ten or twelve in number or more of about half an inch in diameter and contact
is made between the diaphragm and the contact 39. Now the current from the
electric generator 41, which may be a dynamo or a secondary battery, passes by
the line wire 19d to the double binding screw 47, on the electro magnet frame, to
the line wire 19d cable 76, to the binding screw 19 to the diaphragm, and makes the
circuit complete through the coils of the electro magnet 43. The current passes
to the bar 41, to the line 41b, to the generator 41, the circuit being complete, the
armature 44 is attracted to the magnet 43, but does not touch it, This movement
operates the valves of the motive engine, the spindle 47 being connected to the
valve spindle as explained in my two former specifications herein before refered to,
and causes a saloon or seats, platforms, berths, cabins, floor or hammocks to fall in
relation to the ship. The cable 40 contains two insulated wires, and the cable 76
contains three insulated wires.
When the ship falls by the falling of the waves the diaphragm makes contact
with the top contact point 38, and the circuit is complete through the coils of the
electro magnet 42, and the armature is attracted to its poles, but does not touch
them, This part also is fully explained in the specification herein before refered to,
and the engine valve is reversed and the saloon or other apparatus rises in relation
to the ship.
The armature is regulated by the milled head 46 so that it may work in unison
with the rising and falling of the ship. When 46 is turned the block 46 that
carries the two springs 48 and 49, moves along the bar 46b, The pressure of the
springs is regulated by the screws a and b, The springs press against the two studs
shewn on the armature. The magnets are drawn to a smaller scale than the fish
shaped case. In some cases a single spring is used.
Fig. 13 shews the plan by which the pressure produced on the diaphragm is
conveyed by air pressure to the contacts on board the ship. 57 and 58 are two
stout indiarubber diaphragms with mercury or lead weights w, x, y, fixed as

page_text: shewn The diaphragms may be made water tight by any suitable means, The
diaphragms must be stout to resist the pressure of the water due to the depth
below the surface at which they are fixed. The drums 64 and 63 are formed of a
rim of metal with an air tight covering of indiarubber top and bottom They both
work on the same pin 71 Figs. 13 and 15, The pin is supported by the frame 72
The drum 64 has a tube 60d to which is attached the balancing weight 60° and the
flexible tube 60. The drum 63 has a similar tube and balancing weight and is
-connected to the flexible tube 61b as shewn, 64 and 63 are adjusting screws.
The air in the drum 64 is in communication with the air in the space between
the diaphragm 57 and the partition 56, and the air in the other drum is in com-
munication with the air between the partition and the diaphragm 58 The
partition must be very stiff and may have stays to make it so in order to prevent
any pressure being communicated from one air space to the other. The two
tubes 60 and 61 are connected to their respective air spaces as shewn, one by
dotted lines, the ends are bent to right angles and pass through stuffing boxes thus
forming joints as shewn at 60 and 61 Fig. 14.
69 is a carbon lever supported in a metal shoe 70 to which is attached a tube 65
containing mercury. The lever turns on a pivot 68 and is balanced by the
spring 66 adjustable by the milled head 66, 64, and 63 are adjustable carbon
blocks insulated by a block of vuleonite 67 If it is supposed that the cable 76
Fig. 5 is disconnected from the magnets and the line wires indicated by dotted
lines connected instead the electro magnets will serve to explain the action of
Fig. 13.
When the ship rises the air in the tube is compressed by the diaphragm 57 and
communicated to the drum 64 and contact is made between the lever and the
blocks 64 and the current passes from the generator 41, by the line 66, to the
spring 66, to the lever 69, block 64°, and line 64f, and the circuit is complete
through the coils of the magnet 43 and the valves of the engine are moved as
herein before explained.
When the ship falls the air in the tube is compressed and the drum 63 expands
producing contact between 60 and 63%, and the circuit is complete through the
line 63 and electro inagnet 42 and the other magnet is cut out of the circuit and
the reverse action of the engine valve is effected. Other kinds of contacts may
be employed.
The case 54 should take apart at the place indicated by the dotted line, 54'.
This and the case 14 may be united by a kind of bayonet joint.
Fig. 12 shews a tube 82 in section This may be an oval tube, it is to be rivited
water tight at the bottom and the part strengthend to make up for the portion of
the keel that is cut away or it would be better to place the tube at the side of the
keel, The tube that contains the conducting wires, or the line as the case may be, is
fixed to a lattice frame 81, To this frame the rollers f. f are fixed working against
guide bars as shewn the rollers f, f, are fixed to the tube, but can be removed
when the fish shaped case is required to be taken on deck. 80 is a frame to hold
the tube stiff against the pressure of the water This may also be a lattice frame.
Now by pulling the cable or rope 85, the cables 83 and S4 not being fastened,
the whole frame, the movable part of the keel 77, and the fish shaped case, can be
drawn into the tube for any purpose The two cables 83 and 84 when made fast
hold the whole frame and tube in position, 76 is the cable of conducting wires.
80 and 80 are cables or wire ropes to give greater stability to the tube and frame.
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. A sole or similar shaped case or body loaded with mercury or other heavy
metal and balanced on a pin or axil so that it will tend to keep horizontal in the
water, substantially as and for the purpose set forth.

page_text: 2. The combination with the sole or similar shaped case of the friction wheels,
substantially as and for the purpose set forth.
3. The method of connecting the sole or similar shaped case by a wire to a point
in front, substantially as and for the purpose set forth.
4. The single diaphragm, weighted in or near the middle, and frame, and the
adjustable contacts insulated from the diaphragm, substantially as and for the
purpose set forth.
5. The method or system of obtaining "make and break" of electric currents by
a diaphragm or diaphragms and contact points enclosed within a case having holes
top and bottom, the current being conveyed by three insulated conducting wires
and the case fixed below the ship so as to be in water that has less rising and
falling motion than the ship itself, substantially as and for the purpose set forth
and shewn in Fig. 5.
6. The method of regulating the armature between the poles of the electro
magnets by fixing the spring or springs to a block that forms a nut, the nut
having a guide bar to prevent its turning, the said nut being made to traverse by a
screw with a milled head or wheel, substantially as and for the purpose set forth
and shewn in Fig. 5.
7. The three insulated conducting wires for conveying an electric current to and
from the apparatus in the water, substantially as and for the purpose set forth.
8. The method of regulating the armature by placing resistance coils in the
circuit, substantially as and for the purpose set forth.
9. The large tube rivited to the ship and forming part of it and carried to some
part above the water line, the said large tube to contain the tube that conveys the
conducting wires, or the cord or line, substantially as and for the purpose set
forth.
10. The double diaphragm either of india rubber or metal and partition with
insulated electrical contacts, substantially as and for the purpose set forth.
11. The double diaphragms of indiarubber with a partition forming two
seperate air spaces each air space being in communication by means of the
air contained in two flexible tubes with the air contained in two drums that are in
connexion with the contact apparatus on board the ship, substantially as and for
the purpose set forth.
.
12. The two flexible air tubes and drums in connexion with the contact
apparatus, substantially as and for the purpose set forth.
13. The combination of two indiarubber diaphragmns and partition with the two
flexible tubes and drums and the electrical contact apparatus, substantially as and
for the purpose set forth.
14. The combination with the electro generator, electro magnets and contacts of
the two air tubes, two drums and the double indiarubber diaphragms enclosed
within a fish shaped case, substantially as and for the purpose set forth.
15. The combination with the electro generator and electro magnets of the fish
shaped case containing a diaphragm or diaphragms and electric contacts and
conducting wires, substantially as and for the purpose set forth.
16. The combination with a fish shaped case containing a diaphragm or
diaphragms and the joint by which the fish shaped case is capable of moving both
in a vertical and a horizontal plane, substantially as and for the purpose set forth.
Deted this 15th day of June 1886'