AN IMPROVED APPARATUS FOR PREVENTING THE FOULING OF ANCHOR CHAINS AND TELEGRAPH OR OTHER CABLES CONNECTED TO OR ON BOARD LIGHT-SHIPS WHEN SWINGING WITH THE TIDE OR UNDER ANY OTHER CIRCUMSTANCES, AND TO ENABLE ANCHOR, MOORING CABLE OR TELEGRAPH CABLE TO BE CLEARED FROM EACH OTHER IN BOARD."
Year: 1882

page_text: LETTERS PATENT to Thomas Cockshott, of East Greenwich, in the County of
Kent, Lighterman, and Henry Martin Goodman, of Catford, also in the
County of Kent, Electrical Engineer, for an Invention of "AN IMPROVED
APPARATUS FOR PREVENTING THE FOULING OF ANCHOR CHAINS AND
TELEGRAPH OR OTHER CABLES CONNECTED TO OR ON BOARD LIGHT-SHIPS
WHEN SWINGING WITH THE TIDE OR UNDER ANY OTHER CIRCUMSTANCES,
AND TO ENABLE ANCHOR, MOORING CABLE OR TELEGRAPH CABLE TO BE
CLEARED FROM EACH OTHER IN BOARD."
PROVISIONAL SPECIFICATION left by the said Thomas Cockshott and
Henry Martin Goodman at the Office of the Commissioners of Patents on
the 16th January 1882.
THOMAS COCKSHOTT of East Greenwich in the County of Kent Lighterman and
HENRY MARTIN GOODMAN of Catford also in the County of Kent Electrical
Engineer. "AN IMPROVED APPARATUS FOR PREVENTING THE FOULING OF
ANCHOR CHAINS AND TELEGRAPH OR OTHER CABLES CONNECTED TO OR ON BOARD
LIGHTSHIPS WHEN SWINGING WITH THE TIDE, OR UNDER ANY OTHER CIRCUM-
STANCES AND TO ENABLE ANCHOR MOORING CABLE OR TELEGRAPH CABLE TO BE
CLEARED FROM EACH OTHER IN BOARD.
For this purpose we arrange at a suitable distance from the ordinary windlass a
tube of suitable metal carried in fore and aft frames and through which is passed
the anchor chain or cable which chain or cable is then continued through the centre
of a specially constructed rotating hawse pipe and thence to the anchor or mushroom
mooring.
Near the end of the chain-tube or hollow shaft before referred to we place a drum
or flanged cylinder running freely on the said tube on the fore end of which tube
is a flanged boss the periphery of which is embraced by a friction band of suitable
metal, and adjustable by means of one or more bolts through the turned up ends of
such band. On the end of the drum or cylinder next to this friction band is fixed
D

page_text: a projecting stud which when in contact with the projections on the said friction
band actuates and rotates the drum round its hollow shaft through which the
anchor chain or cable passes as before described.
The hawse pipe in the fore part of the vessel has in its centre the hole through
which the said anchor chain passes and at one side of the said hole a smaller one
is arranged through which the telegraph cable is made to pass from a sunk weight
(hereinafter fully described) through a snatch block or sheave over the drum which
rotates on the before mentioned hollow shaft or tube and round which the telegraph
cable is wound and secured. It will be seen that by this arrangement the telegraph
cable which can readily be paid out automatically at any time the anchor chain is
veered away. In order to take in the telegraph cable as the anchor chain is
shortened we arrange a bevel-wheel on the central part of the hollow shaft such
wheel being driven by hand-wheel steam or other power.
The attendant on board by actuating this said wheel rotates the hollow shaft by
its said friction band in contact with the stud in the end of the drum and so winds up
the slack telegraph cable. In order to prevent the anchor chain fouling and entangling
with the telegraph cable as such fouling or entanglement must necessarily occur in
the first place outside the ship we arrange that the rotating hawse pipe shall be
actuated by means of a lever inserted in one or other of a series of mortices on its
circumference or by screw bevel or spur gear. This will necessarily transfer the
fouling or entanglement to the inside of the vessel and in order to obviate this the
bight of the telegraph cable is removed from the snatch block stoppered for a short
time passed under the drum and replaced in the snatch block such operations can
be repeated as often as may be necessary.
In order to retain the perfect electrical connection between the telegraph cable
and the instruments on board we arrange for a contact spring which is always in
metallic contact with the flange of the drum round which the telegraph cable is
wound and from the said spring which is insulated the wire is taken to the instru-
ments in operators room.
On the circumference of the hollow shaft we arrange a ratchet into which a
vertical pawl gears such ratchet may be the bevel-wheel keyed thereon or a
separate ordinary ratchet. In order to prevent any damage to the telegraph cable
by its contact with the ground on which it lies ocurring through the currents or
wash of the sea or the swinging of the vessel we arrange a heavy cheese shaped
weight with a hemispherical top, and through this weight is passed the telegraph
cable. On the top of this said weight is a recess in which is a sunk eye for the
purpose of attaching a removeable chain when lowering it in its position on the
ground on the side of the weight near its bottom is another sunk eye in a similar
recess to which is shackled a permanent chain the purpose of which is to facilitate
the raising of it to the surface when desirable such chain lying at length on the
ground so as to be readily grapnelled when necessary and on such occasions &
chain can be placed through the top sunk eye and when the weight is lowered to
the ground can be readily drawn through placing the weight again in its original
position.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Thomas Cockshott and Henry Martin Goodman in the Great Seal
Patent Office on the 15th July 1882.
THOMAS COCKSHOTT of 40 Calvert Road, East Greenwich (Lighterman) and
HENRY MARTIN GOODMAN of Catford (Electrical Engineer), both in the County
of Kent. AN IMPROVED APPARATUS FOR PREVENTING THE FOULING OF ANCHOR
CHAINS AND TELEGRAPH OR OTHER CABLES CONNECTED TO OR ON BOARD LIGHT
SHIPS, FLOATING TELEGRAPH STATIONS OR OTHER SHIPS AND TO ENABLE THE
MOORING, ANCHOR OR TELEGRAPH LINE TO BE CLEARED FROM EACH OTHER.
Our Invention relates to improvements in apparatus for preventing the fouling
of anchor chains and telegraph or other cables connected to or on board light ships,
floating telegraph stations or other ships and to enable the mooring anchor or
telegraph lines to be cleared from each other and in order to effect this we
arrange at a suitable distance from the ordinary windlass a tube or hollow shaft (a)
of suitable metal (carried in fore and aft frames) and through which is passed the
anchor chain or cable (c) which chain or cable is then continued through the centre
of a specially constructed hawse-pipe and thence to the anchor or mushroom
mooring. Near the end of the tube we place a drum or flanged cylinder (d)
running freely on the said tube and having a projecting stud (d) on the forward
flange. On the end of the tube we form a flanged recess which recess is embraced
by a friction-band (d") which is adjusted by means of one or more bolts through its
turned-up ends which ends when actuated by the tube being turned are caused to
come in contact with the stud on flange of drum and rotate the same winding or
unwinding the telegraph cable as may be necessary.
The hawse pipe in the fore part of the vessel has in its centre the orifice through
which the anchor chain passes and at one side of the said orifice a smaller one is
placed through which the telegraph cable is passed from a sunk weight (h) herein-
after described over a sheave or snatch block (e) thence to the drum or cylinder (d)
it will be seen that by this arrangement the telegraphic cable can be paid out
automatically as the anchor chain is veered away as required in gales of wind or
heavy weather. In order to take in the telegraph cable as the anchor chain is
shortened we arrange a bevel wheel on the central part of the tube (a) at (j) such
wheel being driven by steam, manual or other motive power.
The attendant on board by actuating this said wheel rotates the tube (a) and by
means of the friction band and stud herein before referred to rotates the drum and
so winds up the slack telegraph cable.
In order to prevent the anchor chain fouling with the telegraph cable as such
fouling or entanglement in the first instance occurs necessarily outside the ship we
arrange to rotate the hawse-pipe by means of a lever inserted in one or other of a
series of mortices at or near its circumference or by screw, bevel or spur-gear. This
results in transferring the fouling or entanglement of the cables to the inside or on
board of the vessel and in order to obviate this the bight of the telegraph cable is
removed from the sheave or snatch block, stoppered for a short time and passed
under the drum and replaced on the sheave or snatch block-such operation can be
performed easily and as frequently as may be necessary.
In order to retain the perfect electrical connexion between the telegraph cable
and the instruments in the operators' room we arrange a metallic insulated
moveable and adjustable pin or stud carried by and through an insulated ring (k)
and projecting through the flange of drum and connected to the insulated con-
ducting wires of the telegraph cable-In the end of this stud we drill a hole

page_text: concentric with its line of centre in which hole we insert the aforesaid wires of
telegraph cable and secure them by means of a set screw insulated and fitted to a
tapped hole at right angles with the line of centre of said stud or otherwise con-
nected or solder the telegraph conducting wires to the metallic insulated ring on
after part of cable drum-We also arrange another metallic insulated ring (l)
carried by the forward frame carrying the tube (a) such ring being directly
connected in a suitable manner by the connecting wires to the instruments in
operators' room. Or we arrange a small metallic stud or disc with metallic stem
insulated from and carried by the same frame, such stud or disc also being connected
by the said connecting wires to instruments in the operators room.
In either case
the metallic rings or the stud or disc being so adjustable as to be always in contact
with each other. Any irregularity occurring to the telegraph cable can be readily
and easily rectified thus making the metallic contact or electrical circuit complete
at all times.
On the circumference of the tube we arrange a ratchet (g) into which a vertical
pawl engages, such ratchet may be part of the bevel wheel keyed thereon or a
separate ordinary ratchet. To prevent any damage to the telegraph cable by its
contact with the ground on which it lies, through the currents, wash of the sea or
the swinging of the vessel we arrange and moor in a suitable position a cheese shaped
weight (h) having a hemispherical top and through which weight is passed the
telegraph cable. On the top of this weight is a recess (h¹) in which is a sunk eye
bolt for the purpose of attaching a removeable chain by which to lower the weight
to the ground or the bottom of the sea or river. On the side of the weight near
the ground is another recess (h¹¹) and sunk eye bolt to which is attached a
permanent chain the purpose of which is to facilitate the raising of the weight
from the ground when necessary; such chain lying loose and at full extent on the
ground so as to be readily grapnelled and lifted as occasion requires.
Having now described our said Invention and the means whereby we propose to
carry it out, we wish it to be understood that what we claim is.
First. The hollow tube (through which is passed the anchor chain or cable) in
combination with the drum.
Second. The friction band in combination with the stud for the purpose herein-
before referred to and described.
Third The combination of the snatch block or sheave, and the drum for the
purpose hereinbefore described..
Fourth The mode or modes herein before described of connecting the conducting
wires of telegraph cable on drum and shaft-frame to the instruments in operators'
room.
.
Fifth The pawl and ratchet for the special purpose herein before described.
Sixth The arrangement for the correction of any irregularities occurring during
winding of cable on drum.
Seventh The various and general combinations of the several parts and details
for the purpose or purposes hereinbefore substantially described and set forth.
In witness hereof we the said Thomas Cockshott and Henry Martin
Goodman have hereunto set our hands and seals this Twenty third day
of June in the year of our Lord One thousand eight hundred and
Witness,
ALFD. STANDING.
THOMAS COCKSHOTT.
(L.S.)
HENRY MARTIN GOODMAN. (L.S.)