IMPROVEMENTS IN MACHINERY FOR LOADING AND UNLOADING COLLIERS AND OTHER SHIPS AND VESSELS
Year: 1853

page_text: LETTERS PATENT to Robert Pattison Clark, of Lambton Collieries,
in the County of Durham, Engineer, for the Invention of
"IMPROVEMENTS IN MACHINERY FOR LOADING AND UNLOADING COLLIERS
AND OTHER SHIPS AND VESSELS."
Sealed the 31st May 1853, and dated the 7th April 1853.
PROVISIONAL SPECIFICATION left by the said Robert. Pattison
Clark at the Office of the Commissioners of Patents, with his
Petition, on the 7th April 1853.
I, ROBERT PATTISON CLARK, of Lambton Collieries, in the County
of Durham, Engineer, do hereby declare the nature of tho said
Invention for "IMPROVEMENTS IN MACHINERY FOR LOADING AND UNLOADING
COLLIERS AND OTHER SHIPS AND VESSELS" to be as follows:-
This Invention consists of a 'combination of machinery for working
cranes on board of colliers and other ships and vessels, and is more
peculiarly applicable for vessels propelled by steam engines, though it
is also applicable in other vessels by having a steam engine expressly
for the purpose. The steam engine gives motion to the barrel, so as

page_text: to wind in or run out the chain, as required; and, in order to turn the
crane in varied directions, there is a worm wheel fixed on the post or
pillar, which is put in motion, by the working of the steam engine,
in the direction desired. By means of a friction clutch wheel the engine
can, as is well understood, bring into action at any time, and thus
cause an axis to receive motion from the same axis as that which gives
motion to the barrel; and from the axis so brought into action motion
is transmitted by means of bevilled toothed wheels to an axis with a
screw or worm on it; such screw axis having two bevilled toothed
wheels thereon, one or other of which is brought into action according
as the crane axis is required to be turned in one or the other direction;
and thus will motion be communicated to the post or pillar of the
crane, as may be required, and the chain barrel will be worked to wind
up or unwind the chain. The above-mentioned crane, if required, to
be so constructed on a post or pillar at the bottom, and collar on
deck of the vessel, so as to ship, and unship that portion above the
deck; the machinery for working the same being between decks or
below.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Robert Pattison Clark, in the Great Seal Patent
Office, on the 7th October 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
ROBERT PATTISON CLARK, of Lambton Collieries, in the County of
Durham, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of April, in the year of
our Lord One thousand eight hundred and fifty-three, in the sixteenth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said Robert Pattison Clark, Her special licence
that I, the said Robert Pattison Clark, my executors, administrators,
and assigns, or such others as I, the said Robert Pattison Clark, my
executors, administrators, and assigns, should at any time agree with,
and no others, from time to time and at all times thereafter during the

page_text: 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 FOR LOADING AND UNLOADING COLLIERS AND OTHER SHIPS
AND VESSELS," upon the condition (amongst others) that I, the said
Robert Pattison Clark, by an instrument in writing under my hand
and seal, 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 Seal Patent Office within
six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Robert Pattison Clark, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement thereof (that is to say):
This Invention consists of a combination of machinery for working
cranes on board of colliers and other ships and vessels, and is more
peculiarly applicable for vessels propelled by steam engines, though it
is also applicable in other vessels by having a steam engine expressly
for the purpose. The steam engine gives motion to the barrel, so as to
wind in or run out the chain, as required; and, in order to turn the
crane in varied directions, there is a worm wheel fixed on the post or
pillar, which is put in motion, by the working of the steam engine,
in the direction desired. By means of a friction clutch wheel the
engine can, as is well understood, bring into action at any time, and
thus cause an axis to receive motion from the same axis as that which
gives motion to the barrel; and from the axis so brought into action
motion is transmitted by means of bevilled toothed wheels to an axis
with a screw or worm on it; such screw axis having two bevilled
toothed wheels thereon, one or other of which is brought into action,
according as the crane axis is required to be turned in one or the other
direction; and thus will motion be communicated to the post or pillar of
the crane, as may be required, and the chain barrel will be worked
to wind up or unwind the chain. The above-mentioned crane, if
required to be so, can be constructed on a post or pillar at the bottom,

page_text: and collar on the deck of the vessel, so as to ship and unship that
portion above the deck, the machinery for working the same being
between decks or below.
Having thus described the nature of my said Invention, I will now
proceed to describe the manner of performing the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1, shows a transverse section of part of a ship or vessel
having my improved machinery applied thereto. Figure 2, shows
a plan of the machinery, and Figure 3, a side view of the machinery:
In each of these Figures the same letters are used to indicate
similar parts.
a, is the shaft or axis which receives motion
from a steam engine, either expressly for the purpose, or for one
employed for other uses, on board the ship or vessel. The arrangement
of the steam engine, and mode of connecting it with the shaft or axis a,
forms no part of my Invention, and the same may be varied according
to the judgment of the engineer. On the end of the axis or shaft a, is
fixed the bevilled toothed wheel b, which takes into and gives motion
to the bevilled toothed wheels c, and d, on the axis e; but as these
wheels c, and d, move freely on the axis e, that axis is not put in
motion except when the clutch f, (which is made to slide on a feather
on the axis e, and to turn with it,) is in gear with one or other of the
wheels c, d; and, according as the clutch f, is in gear with the one or
other of the wheels c, d, so will be the direction in which the axis e,
will be moved. On the axis e, is a screw g, which drives the screw
wheel h, which is on and keyed to the post i, of the crane; hence it will
be seen that when the post of the crane is to be moved in one or other
direction the clutch f, will be moved into gear with one or other of the
wheels c, d; and the clutch is moved into and out of gear by means
of the rod and crank j. The post of the crane is hollow, and the chain
from the barrel k, is guided by the pulley ', and thence up the hollow
post of the crane, and then over the pullies, . The post is arranged
to unship from its lower bearing, so that, when not required for use,
it may be raised though the deck by suitable tackle, the screw wheel
remaining with the bearing; and the lower end of the post of the crane

page_text: is formed with a projecting key to fit into the slot formed in the screw
wheel. The barrel k, receives motion from the shaft or axis a, by
means of the pinion 1, which is on a hollow axis m, on which slides two
hollow cones n, o, which are fixed together, but can be slided on
the hollow axis m, but turns with it. On the axis a, is fixed a cone p;
and is a fixed cone. The double hollow cone n, o, is slided towards
the cone p, or 7, by means of the rod 7, which at its lower end is
attached to the arm s, on the axis s', there being on this axis a forked
arm t, which partly embraces the centre of the double cone; and
therefore, according as the rod r, is raised or lowered, so will be the
direction in which the double cone n, o, will be moved; and accordingly,
when the cone n, acts on the cone p, the axis a, will give motion to
the barrel k, and wind on the chain; but when the clutch o, is caused
to press and to act on the fixed cone 7, the same will act as a break
when lowering the chain and goods; or the engine may be reversed
when lowering, and drive the barrel k, at such speed as may be
desired.
Having thus described the nature of my said Invention, and the
manner of performing the same, I would have it understood that
I make no claim to the parts separately, and the details may be varied
without departing from my Invention; but what I claim is the combi-
nation of mechanical parts herein described for loading and unloading
ships and vessels.
In witness whereof, I, the said Robert Pattison Clark, have
hereunto set my hand and seal, this Twenty-seventh day of
August, in the year of our Lord One thousand eight hundred
and fifty three
ROB PATTISON CLARK. (L.S.)
Witness, FRED HARRIS.