IMPROVEMENTS IN THE CONSTRUCTION OF STEAM SHIPS OR VESSELS
Year: 1879

page_text: LETTERS PATENT to Thomas McCarter, of Ship Quay Street, in the City of
Londonderry, and County of Londonderry, Ireland, Newspaper Proprietor, and
Thomas Cooper, of Alma Place, in the said City of Londonderry, Mechanic,
for the Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF STEAM SHIPS
OR VESSELS"
Sealed the 17th February 1880, and dated the 17th November 1879.
PROVISIONAL SPECIFICATION left by the said Thomas McCarter and
Thomas Cooper at the Office of the Commissioners of Patents on the 17th
November 1879.
THOMAS MCCARTER, of Ship Quay Street, in the City of Londonderry, and
County of Londonderry, Ireland, Newspaper Proprietor,, and THOMAS COOPER,
"IMPROVEMENTS IN
of Alma Place, in the said City of Londonderry, Mechanic.
THE CONSTRUCTION OF STEAM SHIPS OR VESSELS."
The object of the improvements in the construction of steam ships or vessels is
to enable the propeller or propellers to be placed in the centre line of the hull of
the vessel, and at or towards the middle of the length thereof.
The form of propeller employed is that of the screw. The vessel above the keel
is cut through to the height required for the free working of the screw or screws
employed, and from this opening the sides of the vessel incline fore and aft to
adinit of the water passing freely to and from the blades of the propeller.
By these means the necessity for any considerable length of screw alley and
shafting between the propeller and the engine power employed is avoided, and the
engine power is enabled to act directly on the propeller shaft. The vessel is also
better able to work in all weathers, whilst other advantages are secured.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas McCarter and Thomas Cooper in the Great Seal Patent
Office on the 14th May 1880.
THOMAS MCCARTER, of Ship Quay Street, in the City of Londonderry, and
County of Londonderry, Ireland, Newspaper Proprietor, and THOMAS COOPER,
of Alma Place, in the said City of Loddonderry, Mechanic. "IMPROVEMENTS IN
THE CONSTRUCTION OF STEAM SHIPS OR VESSELS."
The object of the improvements in the construction of steam ships or vessels is
to enable the propeller or propellers to be placed in the centre line of the hull of
the vessel, and at or towards the middle of the length thereof.
The form of propeller employed is that of the screw. The vessel above the keel
is cut through to the height required for the free working of the screw or screws
employed, and from this opening the sides of the vessel incline fore and aft to
admit of the water passing freely to and from the blades of the propeller.
By these means the necessity for any considerable length of screw alley and
shafting between the propeller and the engine power employed is avoided, and the
engine power is enable to act directly on the propeller shaft. The vessel is also
better able to work in all weathers, whilst other advantages are secured.
But that the Invention may be the better understood, we will, by the aid of the
accompanying Drawings, proceed to describe the same more in detail.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows the side view of a steam ship or vessel, with parts thereof
arranged, and the propeller applied thereto according to our Invention; Figure 2
shows a section of Figure 1, taken through the midships.
a represents the screw propeller, and the vessel at that part is cut away above
the keel, or is formed with an opening to the height required to admit of the
proper action of the propeller. From this opening both sides of the ship or vessel
incline fore and aft from about A to B, to admit of the water passing freely to and
from the blades of the propeller. The shaft of the propeller passes through packed
collars to the interior of the vessel in the usual way.
Figure represents by another similar section the application of a pair of
propellers to act over each side of the keel.
We have not thought it necessary to show or to enter into any description of the
means for connecting the shafting of the propeller or propellers with the engine
power employed, as such will be simply of the ordinary character employed when
giving motion to screw propellers generally.
Having thus described our Invention and means which we adopt in carrying the
same into effect, we would have it understood that what we claim is, the improve-
ments in the construction of steam ships or vessels, whereby the propeller or
propellers employed for giving motion to the same may be applied and worked at
or about the centre of the length of the ship or vessel, substantially as described.
In witness whereof, we, the said Thomas McCarter and Thomas Cooper,
have hereunto set our hands and seals, this Tenth day of May, in the
year of our Lord One thousand eight hundred and eighty.

page_text: LETTERS PATENT to Thomas McCarter, of Ship Quay Street, in the City of
Londonderry, and County of Londonderry, Ireland, Newspaper Proprietor, and
Thomas Cooper, of Alma Place, in the said City of Londonderry, Mechanic,
for the Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF STEAM SHIPS
OR VESSELS,"
Sealed the 17th February 1880, and dated the 17th November 1879.
PROVISIONAL SPECIFICATION left by the said Thomas McCarter and
Thomas Cooper at the Office of the Commissioners of Patents on the 17th
November 1879.
THOMAS MOCARTER, of Ship Quay Street, in the City of Londonderry, and
County of Londonderry, Ireland, Newspaper Proprietor, and THOMAS COOPER,
"IMPROVEMENTS IN
of Alma Place, in the said City of Londonderry, Mechanic.
THE CONSTRUCTION OF STEAM SHIPS OR VESSELS."
The object of the improvements in the construction of steam ships or vessels is
to enable the propeller or propellers to be placed in the centre line of the hull of
the vessel, and at or towards the middle of the length thereof.
The form of propeller employed is that of the screw.
The vessel above the keel
is cut through to the height required for the free working of the screw or screws
employed, and from this opening the sides of the vessel incline fore and aft to
admit of the water passing freely to and from the blades of the propeller.
By these means the necessity for any considerable length of screw alley and
shafting between the propeller and the engine power employed is avoided, and the
engine power is enabled to act directly on the propeller shaft. The vessel is also
better able to work in all weathers, whilst other advantages are secured.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Thomas McCarter and Thomas Cooper in the Great Seal Patent
Office on the 14th May 1880.
THOMAS MCCARTER, of Ship Quay Street, in the City of Londonderry, and
County of Londonderry, Ireland, Newspaper Proprietor, and THOMAS COOPER,
of Alma Place, in the said City of Londonderry, Mechanic. "IMPROVEMENTS IN
THE CONSTRUCTION OF STEAM SHIPS OR VESSELS."
The object of the improvements in the construction of steam ships or vessels is
to enable the propeller or propellers to be placed in the centre line of the hull
of the vessel, and at or towards the middle of the length thereof.
The form of propeller employed is that of the screw.
The vessel above the keel
is cut through to the height required for the free working of the screw or screws
employed, and from this opening the sides of the vessel incline fore and aft to
admit of the water passing freely to and from the blades of the propeller.
By these means the necessity for any considerable length of screw alley and
shafting between the propeller and the engine power employed is avoided, and the
engine power is enable to act directly on the propeller shaft. The vessel is also
better able to work in all weathers, whilst other advantages are secured.
But that the Invention may be the better understood, we will, by the aid of the
accompanying Drawings, proceed to describe the same more in detail.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows the side view of a steam ship or vessel, with parts thereof
arranged, and the propeller applied thereto according to our Invention; Figure 2
shows a section of Figure 1, taken through the midships.
a represents the screw propeller, and the vessel at that part is cut away above
the keel, or is formed with an opening to the height required to admit of the
proper action of the propeller. From this opening both sides of the ship or vessel
încline fore and aft from about A to B, to admit of the water passing freely to and
from the blades of the propeller. The shaft of the propeller passes through packed
collars to the interior of the vessel in the usual way.
Figure 3 represents by another similar section the application of a pair of
propellers to act over each side of the keel.
We have not thought it necessary to show or to enter into any description of the
means for connecting the shafting of the propeller or propellers with the engine
power employed, as such will be simply of the ordinary character employed when
giving motion to screw propellers generally.
Having thus described our Invention and means which we adopt in carrying the
same into effect, we would have it understood that what we claim is, the improve-
ments in the construction of steam ships or vessels, whereby the propeller or
propellers employed for giving motion to the same may be applied and worked at
or about the centre of the length of the ship or vessel, substantially as described.
In witness whereof, we, the said Thomas McCarter and Thomas Cooper,
have hereunto set our hands and seals, this Tenth day of May, in the
year of our Lord One thousand eight hundred and eighty.
THOMAS MCCARTER. (L.S.)
THOMAS COOPER.
(L.S.)