Improved Apparatus for Transporting Ships' Boats across the Deck.
Year: 1898

page_text: Date of Application, 13th Oct., 1898-Accepted, 10th Dec., 1898
COMPLETE SPECIFICATION.
Improved Apparatus for Transporting Ships' Boats across the Deck.
I, JOHANN HEINRICH KLENCKE, of Mathildenstrasse, 29, Bremen, in the German
Empire, Captain, 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: -
The subject of this invention is an improved arrangement of overhead girders
and travelling lifting apparatus for transporting ships boats on or across the deck
for the purpose of launching them by means of boat lowering, appliances; for
instance, davits. For this purpose, I arrange guide rails or girders at a suitable
height above the deck which are supported at their ends by longitudinal girders
above the sides of the ship and uprights or pillars. On the cross girders or guide
rails travelling lifting apparatus, such as travelling crabs, carriages with
pulley blocks or the like, are mounted, by means of which the ships'
boats, which are underneath the guide rails on the deck, Can be
lifted. The boats thus suspended below the guide rails are moved along the same
to the davits or other boat launching apparatus above the bulwarks, in order that
these davits or their equivalents can seize the boats, swing them outwards and lower
them into the water clear from the ship's side. The object of the arrangement
of guide rails and travelling lifting apparatus is to enable boats from both sides
of the ship to be brought to either side under the boat launching apparatus, so
that the weather side boats can be utilised for lowering over the lee side, also if
spaces smaller than the length of the boats have to be passed through.
The drawings appended hereunto show in Figures 1 and 2, the arrangement of
the overhead guide rails in front and side view; Figures 3 and 4, a plan and front
view of the arrangement of overhead guide rails for the purpose of carrying boats
through spaces which are smaller than the length of the boat.
Figures 1 and 2, show the overhead guide rails or girders F carried by the
longitudinal girders which are supported on the pillars F2. On the guide rails
move the travelling lifting apparatus H, below which the boat is suspended. The
boat as shewn has left its original position 13¹, has been raised by means of the
lifting tackle H into the position 132, and shifted towards the ends of the guide
rails into the position 133, whence it has been brought to the boat launching
apparatus, for instance davits, as shewn on the drawing, grappled by them, swung
outwards and brought into the position B, from which it can be lowered into the
water clear of the hull.
Figures 3 and 4 show the arrangement of the guide rails F, carried by the
longitudinal girders F and pillars F2, for shifting a boat through a free space
which is shorter than the length of the boat. This free space is represented on the
drawing as the interval between the funnels S1 and S2.
If a rail G or its equivalent is arranged above the fore and another above the
after part of the boat, as represented by Figures 3 and 4, on which rails the loops of
the lifting ropes or chains can slide, and only one lifting apparatus F is shifted, the
boat will pass from its original position B5, into the slanting position B6, the points of

page_text: suspension of the boat being moved apart by the shifting of the lifting tackle, and
any required slanting position of the boat obtainable thereby. When the boat
suspended in this slanting position is now pushed forward uniformly at both ends
towards the ends of the girders F, and at the same time in its longitudinal direction,
it will be shifted on the guide rails F¹ and assume the position B, and by moving
the second lifting apparatus F forward while the first remains stationary, the
boat will be brought into the position B8 under the davits, in which it can be grappled
by them and swung outwards so that it attains the position 139, in which it can be
lowered into the water clear of the ship's side.
On Figure 4 the boat is shewn in section in its position B.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:
In combination with davits or equivalent fixed boat launching apparatus on
shipboard, the arrangement of guide rails or girders transversely or nearly so to
the longitudinal axis of the ship at a suitable height above the deck, and of lifting
apparatus capable of travelling thereon by means of which ships' boats can be
transported from both sides of the ship to either side, also through spaces smaller
than the length of the boats to said davits or other boat launching appliances, so
that the boats can be grappled thereby, swung outwards and lowered into the water
clear of the ships' side, substantially as hereinbefore described and illustrated by
the drawings.
Todd this 20th day of Santomher 1808
R. J. URQUHART,
57, Barton Arcade, Manchester,
Harrington Chambers, 24, North John Street, Liverpool,
Consulting Engineer & Patent Agent.