Improvements in Boat Raising, Lowering, and Disengaging Gear.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Boat Raising, Lowering, and Disengaging Gear.
I, GEORGE WILLIAM MORRIS, of 30, Shelley Avenue, East Ham, in the County
of Essex, Master Mariner, do hereby declare the nature of this invention to be as
follows:-
This invention consists in a pair of swinging davits, suitably mounted in guiding
frames secured on the deck of the ship.
These frames also carry the bearings for a shaft carrying winding drums, the said
shaft being operated by a winch or other suitable mechanism.
It is also provided with a band or other convenient form of brake.
Each frame also carries the chocks on which the boat normally rests, these
chocks being formed in two separate parts, but pivotted on the same pin. Each part
has a tail piece, which, when the chocks are in position to receive the boat, are
locked in position to each guiding frame by a rod.
Each rod is connected to a rocking arm mounted on a transverse shaft, and
operated by a lever.
The boat is supported by wire or other ropes, which pass over pulleys on
the davits, guide rollers on standards, and are wound on the drums before
mentioned.
The ropes are provided with balls, which normally take into jaws in the heads of
the davits, and thus provide for pulling the davits back inboard when the boat has
been picked up.
The boat is provided with pivotted hooks to which a weight is attached, so that
directly the weight of the boat is taken off the ropes, the hooks fall away from the
eyes, and the ropes are immediately released.
The boat lashings are secured to the projecting ends of the locking rods,
so that withdrawing the rods not only releases the chocks, but also the
lashings.
To lower the boat, the locking rods are withdrawn by throwing over the lever,
and the chocks and lashings are released at the same time the winch is thrown
out of gear.
The boat is now held by the brake, which, at the right moment, is slackened;
the davits fall outwards, so that the boat clears the side of the ship, and the
boat is lowered. So soon as it touches the water, the hooks are released, and the
boat is free.
Dated this 24th day of March 1898

page_text: Improvements in Boat Raising, Lowering, and Disengaging Gear.
I, GEORGE WILLIAM MORRIS, of 30, Shelley Avenue, East Ham, in the County of
Essex, Master Mariner, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
In the accompanying drawings:-
Fig. 1 is a front view of my improved boat raising, lowering, and disengaging
gear, part of the side of the boat being cut away.
Fig. 2 is an end elevation of the same.
Fig. 3 is a side view of the brake; and
Fig. 4 a side view of the chocks detached.
Fig. 5 is a side view of the device for disengaging the chains, when the boat is
water borne.
AA is a pair of swinging davits, suitably mounted in guiding frames B secured
on the deck of the ship.
These frames B also carry the bearings for a shaft C, on which are mounted
winding drums D, the said shaft being operated by a winch C¹ and gear, or other
suitable mechanism.
It is also provided with a band or other convenient form of brake E.
Each frame B also carries the chocks F on which the boat normally rests, these
chocks F being formed in two separate parts, but pivotted on the same pin. Each
part has a tail piece F¹, which, when the chocks are in position, to receive the boat,
pass one another and they are locked in position by a rod G (see the detached view
Fig. 4).
Each rod G is connected to a rocking arm H, mounted on a transverse shaft, and
operated by a lever I.
The boat is supported by wire or other ropes J, which pass over pulleys on the
davits A, guide rollers on standards K, and are wound on the drums D before
mentioned.
The ropes J are provided with balls J¹, which normally take into jaws L in the
heads of the davits A, and thus provide for pulling the davits back inboard, when
the boat has been picked up.
The boat is secured to the chains J by pins M, which pass through sockets N
connected to the boat, and into which a link or other device N' on the chain enters.
The pins M are connected to a hand lever O, by which they are released.
The boat lashings P are secured to the projecting ends of the locking rods G, so
that withdrawing the rods not only releases the chocks F, but also the lashings P.
To lower the boat, the locking rods G are withdrawn by throwing over the
lever I, and the chocks F and lashings P are released; at the same time, the
winch C is thrown out of gear.
The boat is now held by the brake E, which, at the right moment, is slackened;
the davits fall outwards, so that the boat clears the side of the ship, and the boat is
lowered. So soon as it touches the water, the lever O is operated to draw back the
pins M, and the boat is free.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The general arrangement and construction of boat raising, lowering, and dis-
hell min she and Jonuihad

page_text: 2. In boat raising, lowering, and disengaging gear, the combination of swinging
davits, having jaws L at their outer ends, with supporting chains J, having balls J¹
which take into the jaws, and thus provide means for pulling the davits back
inboard, as shown and described.
3. The boat chocks constructed as herein shown and described with reference to
Fig. 4 of the drawings, in combination with locking-pins or rods which operate
in the manner set forth.