Apparatus for Loading and Unloading Cargoes of Frozen Sheep.
Year: 1892

page_text: Date of Application, 1st Oct., 1892
Complete Specification Left, 1st July, 1893-Accepted, 19th Aug., 1893
We,
PROVISIONAL SPECIFICATION.
Apparatus for Loading and Unloading Cargoes of Frozen Sheep.
HENRY GRAHAM HARRIS, of No. 5 Great George Street, Westminster,
in the County of London, Civil Engineer, and EDWARD MONTAGUE NELSON, of
No. 15 Dowgate Hill, in the City of London, Merchant, do hereby declare the
nature of this invention to be as follows:
:-
Our invention relates to apparatus arranged on board a vessel for loading and
unloading cargoes of frozen sheep.
At present the carcases are usually brought alongside the vessel by a barge or
other conveyance, they have to be raised above deck, transferred horizontally to
the hatchway and lowered into the 'hold; or conversely, they have to be raised
from the hold, transferred to the side of the vessel and lowered into a barge or
other conveyance.
In order to effect these operations with little or no handling of the carcases, we
provide a chain travelling vertically at the side of the vessel over an upper and
lower guide pulley mounted at the ends of a suitable framing, the vertical chain
being capable of being raised or lowered to suit variations of level due to tides,
depths of hold or other circumstances. We provide a second similar chain
travelling vertically into the hold of the vessel and on deck between those two
chains we provide a chain travelling horizontally. We drive those three chains
from any convenient motor by sprocket wheels connected together by suitable
gearing by which the travel of each chain is properly timed to that of the others.
On each chain, which is duplicate consisting of two parallel chains, we provide
hook carriers so arranged that the carriers on the horizontal chain pass freely
either inside or outside the pair of the vertically moving chains.
The carcases placed on the carriers of the one vertical chain either in the hold
of the vessel or in the barge, as the case may be, are raised until they meet the
carriers on the horizontal chain to which they become automatically transferred,
and from the horizontal chain they are similarly transferred to the other vertical
chain, from the carriers of which they are delivered or taken off.
Dated this 1st day of October 1892.
ABEL & IMRAY,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Apparatus for Loading and Unloading Cargoes of Frozen Sheep.
We, HENRY GRAHAM HARRIS, of No. 5 Great George Street, Westminster,
in the County of London, Civil Engineer, and EDWARD MONTAGUE NELSON, of
No. 15 Dowgate Hill, in the City of London, Merchant, 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 :-
Our invention relates to apparatus arranged on board a vessel for loading and
unloading cargoes of frozen sheep.
At present the carcases are usually brought alongside the vessel by a barge or
other conveyance, they have to be raised above deck, transferred horizontally to the
hatchway and lowered into the hold; or conversely, they have to be raised from
the hold, transferred to the side of the vessel and lowered into a barge or other
conveyance

page_text: and
In order to effect these operations with little or no handling of the carcases, we
provide a chain travelling vertically at the side of the vessel over an upper
a lower guide pulley these pulleys being mounted at the ends of a suitable framing
and this vertical chain being capable of being raised or lowered to suit variations of
level due to tides; depths of hold or other circumstances. We provide a second
similar chain travelling vertically into the hold of the vessel and on deck between
those two chains we provide a chain travelling horizontally. We drive those three
chains from any convenient motor by sprocket wheels connected together by
suitable gearing by which the travel of each chain is properly timed to that of the
others.
On each chain, which is duplicate consisting of two parallel chains, we provide
carriers so arranged that the carriers on the horizontal chain pass freely either inside
or outside the carriers of the vertically moving chains.
The carcases placed on the carriers of the one vertical chain either in the hold of
the vessel or in the barge, as the case may be, are raised until they meet the carriers
on the horizontal chain to which they become automatically transferred, and from
the horizontal chain they are similarly transferred to the other vertical chain, from
the carriers of which they are delivered or taken off.
Fig. 1. of the accompanying drawings is a transverse section of a vessel and
barge shewing an apparatus according to our invention for loading or unloading
them.
Fig. 2 is a plan of the apparatus.
CC are a pair of parallel vertical chains carried over guide pulleys P¹ P¹, and
moved by a pair of sprocket wheels S' S¹ which are mounted on a framing F' fixed
at one end of a pair of horizontal girders G. Through a guide hole and nut N1
arranged on the framing F¹ passes a vertical screw threaded rod R', which, by
means of a feather working in a slot, is prevented from turning in the guide hole of
the framing, when the nut N' is turned by worm gear W₁ worked by hand so as to
raise or lower the rod R', the guide pulleys P P carried by the rod R¹ being thus
raised or lowered so as to suit the level of the barge B or the depth of its hold. At
the other end of the girders G is a framing F' carrying similar sprocket
wheels S S to work chains C C which are carried over guide pulleys P' P'
mounted on a rod R' so as to be raised or lowered by a nut N and worm gear W'
to suit the position of the vessel V or the depth of its hold. A pair of sprocket
wheels SS mounted on the girders G work a horizontal chain C³. The sprocket
wheels S¹ S are connected by gearing T¹ and S'S' by gearing T', which may be
worked from any suitable motor driving a pulley or drum D, the gearing being
such as to drive all the chains at equal speed.
To the chains C¹ C¹ and C' C³ are attached carriers H¹ H* equally spaced apart,
and to the chain C³ are attached carriers H', correspondingly spaced, having pro-
jecting arms which run along a pair of guide rails K. When the chains C¹ C₁
and CC are adjusted to their working position with respect to the barge B and
vessel V, and the carriers H'H' are adjusted relatively to H', the gearing can be
driven in the one direction to unload the vessel and load the barge, or in the opposite
direction to unload the barge and load the vessel.
In the one case the carcases in any hold of the vessel being laid on the ascending
carriers H³ are taken up until the carriers H passing under them take them off H
and convey them along horizontally until they fall on to the descending carriers H¹
by which they are carried down into the barge. In the other case the carriers H'
raise them until they are taken by H' conveyed horizontally at H³, and by them
lowered into the hold of the vessel.
Although we have shewn a barge B for receiving carcases from the vessel or for
bringing carcases to the vessel, obviously, the carcases might be taken from or
delivered to a quay or shed.
Instead of chains, bands might be employed and instead of screws for raising and
lowering the frames C'C' racks and pinions, hydraulic power or other equivalent
mechanism, might be employed.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
Apparatus for loading and unloading cargoes of frozen sheep, consisting of two
5 sets of adjustable vertical travelling chains, or bands, and an intermediate horizontal
travelling chain or band all provided with carriers and connected by gearing,
arranged and operating substantially as described.
Dated this lot doz of Lul 1902
ABEL & IMRAY,
Agents for the Applicants.