IMPROVED COMBINATION OF APPLIANCES FOR HAULING VESSELS ON SLIP WAYS, INCLINED PLANES, AND OTHER SIMILAR SURFACES."VISIONAL SPECIFICATION
Year: 1879

page_text: LETTERS PATENT to Thomas Summers and Arthur James Day, of the Firm
Day, Summers, and Company, of Northain Iron Works, Southampton, for
the Invention of "IMPROVED COMBINATION OF APPLIANCES FOR HAULING
VESSELS ON SLIP WAYS, INCLINED PLANES, AND OTHER SIMILAR SURFACES."
PROVISIONAL SPECIFICATION left by the said Thomas Summers and
Arthur James Day at the Office of the Commissioners of Patents on the
11th January 1879.
THOMAS SUMMERS and ARTHUR JAMES DAY, of the Firm Day, Summers, and
Company, of Northam Iron Works, Southampton. "IMPROVED COMBINATION OF
APPLIANCES FOR HAULING VESSELS ON SLIP WAYS, INCLINED PLANES, AND OTHER
SIMILAR SURFACES."
Our Invention consists in the application of a flexible metallic hawser or hawsers
in combination with a powerful winch or winches to the cradle of a heaving up slip
for the general purposes of working the same.
According to one method of carrying our Invention into effect a vessel is hauled
up on a slip way by a flexible metallic hawser, which is made fast to a cradle at one
end and to a drum or barrel of a winch at its other end.
The main drum or barrel of the winch which winds on itself the flexible metallic
hawser may be worked by a spur wheel geared into by a pinion which can be moved
in or out of gear by a lever, the shaft of the pinion being driven by a worm wheel
and worm from a steam engine or other prime mover.
A second and smaller drum or barrel which moves at a quicker rate than the main
drum can be used for hauling up the empty cradle when no vessel is on the same,
and also by means of a sheave at the lower end of the ground ways; this second
drum can be used for hauling the metallic flexible hawser off its drum.
A pair of ordinary steam engines fitted with link motion and a boiler for supplying
the motive power may be used for working the winch, but we do not limit ourselves
to the employment of steam as a motive power for our Invention.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Thomas Summers and Arthur James Day in the Great Seal
Patent Office on the 11th July 1879.
THOMAS SUMMERS and ARTHUR JAMES DAY, of the Firm Day, Summers, and
Company, of Northam Iron Works, Southampton. "AN IMPROVED COMBINATION
OF APPLIANCES FOR HAULING VESSELS ON SLIP WAYS, INCLINED PLANES, AND
OTHER SIMILAR SURFACES."
Our Invention consists in the application of a flexible metallic hawser or hawsers
in combination with a powerful winch or winches to the cradle of a heaving up slip
for the general purposes of working the same.
In the accompanying Drawings we have shown three views of one mode of con-
structing our apparatus, and the same lotters of reference apply to all the three
views.
Figure 1 shows a vessel hauled up on a slip way by the flexible metallic
hawser A, which is made fast to the cradle B at one end and to the drum or
barrel C of the winch D at its other end.
Figure 2 shows an elevation of the winch D.
Figure 3 shows a plan of the same winch.
In these Drawings of the winch the main drum or barrel C which winds on itself
the flexible metallic hawser is shown as worked by a spur wheel E gearing into the
pinion F, which can be moved in or out of gear by the lever G.
His a second and smaller drum or barrel which moves at a quicker rate than the
main drum C and can be used for hauling up the empty cradle when no vessel is on
the same, and also by means of a sheave at the lower end of the ground ways; this
second drum H can be used for hauling the metallic flexible lawser off its drum.
I shows a pair of steam engines fitted with link motion, and J a boiler for sup-
plying the motive power for working the winch, but we do not limit ourselves to
the employment of steam as a motive power for our Invention.
And having now described the nature of our said Invention and in what manner
the same is to be performed, we declare that we claim,—
The improved combination of appliances for hauling vessels on slip ways, inclined
planes, and other similar surfaces, as hereinbefore described, and substantially as
shown in the Drawings.
In witness whereof, we, the said Thomas Summers and Arthur James Day,
have hereunto set our hands and seals this Seventh day of July, One
thousand eight hundred and seventy nine.
THOMAS SUMMERS. (L.S.)
ARTHUR J. DAY. (L.S.)