IMPROVEMENTS IN DUMPING BOATS
Year: 1885

page_text: I HENRY EDWARD NEWTON of the Office for Patents 6 Breams Buildings,
Chancery Lane in the County of Middlesex, Civil Engineer do hereby declare
the nature of the invention for "IMPROVEMENTS IN DUMPING BOATS," to be as
follows:-
This invention is intended for boats or scows which are employed for carrying
out to sea and automatically dumping or unloading garbage ashes or other refuse
material, or for transporting and automatically dumping stone, earth or other
material in order to aid in the construction of a break water or other artificial
submarine work; and the invention relates to boats which consist of or comprise
two floats or pontoons each forming an air tight hull complete in itself, and which
are hinged so that they may be adjusted into and held or locked in a position
side by side so as to support a load and so that they may, when released from their
locking or holding devices swing on their pivots or hinges to dump their load.
The invention consists in a boat composed of two floats or pontoons having
approximately flat decks or load supporting surfaces and hinged at their inner sides
between the top and bottom so that they may swing downwards and towards each
other at their lower portions and thereby bring their decks to such outwardly
inclined positions that the load will slide off from them in opposite directions. It
is preferred to hinge the floats or pontoons close together and in order to permit
of their swinging downwards and towards each other at their lower portions their
inner sides are made with an outward inclination from their hinges downward to
their bottoms.
In order to support a fixed deck independent of the floats or pontoons uprights
or standards are provided which at their lower ends are hinged in line with the
pontoon hinges and upon these uprights or standards is secured a narrow deck
which extends lengthwise of the floats or pontoons and covers the joint between
them when they are brought together above their hinges.

page_text: In order to maintain the uprights or standards in vertical position sliding blocks
or collars are fitted upon them which blocks or collars are connected by rods with
the floats or pontoons.-When the floats or pontoons swing outwards away from
each other in dumping, the sliding blocks or collars are drawn down on the
uprights or standards and when the floats or pontoons come together after dumping
the said blocks or collars rise on the uprights or standards, but whatever the
position of the floats or pontoons, the latter, by the rods and sliding collars, hold
the uprights or standards in vertical position centrally between them.
The parallel edges of the deck are also provided with hinged side-pieces or wings
which may be swung down to lie in a plane coincident with the deck or swing
upwards so as to form guards to prevent persons from falling from the deck when
the boat is dumped.

page_text: I HENRY EDWARD NEWTON of the Office for Patents, 6 Bream's Buildings,
Chancery Lane in the County of Middlesex, Civil Engineer 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:-
This invention is intended for boats or scows which are employed for carrying
out to sea, and automatically dumping or unloading garbage, ashes, or other refuse
material, or for transporting and automatically dumping stone, earth, or other
material, in order to aid in the construction of a breakwater or other artificial
submarine work; and the invention relates to boats which consist of, or comprise
two floats or pontoons, each forming a hull complete in itself, and which are
hinged together so that they may be adjusted into and held or locked in a position
side by side, so as to support a load, and so that they may, when released.
from their locking or holding devices, swing on their pivots or hinges to dump.
their load.
The invention consists in a boat composed of two floats or pontoons having
approximately flat decks or load-supporting surfaces, and binged at their inner:
sides between the top and bottom, so that they may swing downwards and
towards each other at their lower portions, and thereby bring their decks to such
outwardly inclined positions, that the load will slide off from them in opposite
directions. It is preferred to hinge the floats or pontoons close together, and in
order to permit of their swinging downwards and towards each other at their lower
portions, their inner sides are made with an outward inclination from their hinges
downward to their bottoms.
In order to support a fixed deck independently of the floats or pontoons, uprights.
or standards are provided, which, at their lower ends, are hinged in line with the
pontoon hinges, and upon these uprights or standards is secured a narrow deck,.
which extends lengthwise of the floats or pontoons, and covers the joint between
them when they are brought together above their hinges.
In order to maintain the uprights or standards in vertical position, sliding blocks
or collars are fitted upon then, which, by rods, are connected with the floats or
pontoons. When the floats or pontoons swing outwards away from each other in
dumping, the sliding blocks or collars are drawn down on the uprights or standards,
and when the floats or pontoons come together after dumping, the said blocks or
collars rise on the uprights or standards, but whatever the position of the floats or
pontoons, the latter, by the rods and sliding collars, hold the uprights or standards
in vertical position centrally between them.
;
At the parallel edges of the deck, hinged sidepieces or wings are also provided,
which may be swung down to lie in a plane coincident with the deck, or swing
upwards so as to form guards to prevent persons from falling from the deck when:
the boat is dumped.
The invention is illustrated in the accompanying drawing, in which Fig. 1 is a
transverse sectional view of a boat embodying this invention, representing the
floats or pontoons brought together in position to receive a load.
25

page_text: Fig. 2 is a similar section showing the floats or pontoons in the position which
they occupy when the boat is dumped, and
Fig. 3 is a plan of the boat.
Figs. 1 and 2 are taken on the planes indicated respectively by the dotted
lines x and y y, Fig. 3.
Similar letters of reference indicate corresponding parts in all the Figures.
A A designate the two floats or pontoons which constitute the principal parts of
the boat. They are alike in shape, except that they are made right and left, and
they may be constructed in a manner similar to the floats of dumping boats or
scows heretofore used.-They have each a deck portion, a, and their inner and
adjacent sides are square or perpendicular with the deck for about half their
depth, at which point they are hinged together by suitable hinges b.
Below their hinges b, the inner and adjacent sides of the floats or pontoons
slant, or are inclined downwards and away from each other, as shown at c.—The
remainder of the bottoms of the floats or pontoons, and their outer sides, may be of
any suitable shape.
The floats or pontoons have end boards d, to assist in confining the load of
garbage or other loose material placed upon the deck, and they are also furnished
with hooks e and studs e¹, as shown in Fig. 2, or other suitable fastenings, to hold
them together in the position shown in Fig. 1, in which they are loaded on
their decks.
B designates the fixed or horizontal deck, which is supported midway between
the two floats or pontoons A A, by strong uprights or standards CC, arranged one
near each end of the boat.-If desired, one or more similar uprights or standards
might be arranged between the two shown.-The uprights or standards C may be
of wood or metal, and are hinged to one or both of the floats or pontoons by
hinges in line with the hinges b which connect the floats or pontoons together.
The deck B is rigidly secured upon the uprights or standards C C, at a height
which will just enable the deck portions a of the floats or pontoons to swing or
move outwards and inwards beneath it.
On each standard or upright C, above the fixed deck B, is a collar or block D,
which is free to slide upwards and downwards thereon, and is connected with the
two floats or pontoons by bars or rods E, which are pivotted or hinged at their
upper ends to the collar or block D, and at their lower ends f¹ to the floats or
pontoons; and consequently, as the floats or pontoous are swung inwards or
outwards, the collars or blocks D slide up and down on the uprights or standards C,
and the said uprights or standards, and the deck B attached to them, are held
against canting to one side or the other.
At opposite edges of the fixed deck B are wings or side pieces B¹, which are
hinged thereto at 61. These side pieces may be turned down to lie upon the floats
or pontoons, as shewn in Fig. 1, and enable a wheel barrow to be run over the
whole boat, when it is desired to unload without dumping, or they may be swung
up, as shown in Fig. 2, and secured against stops t t secured to the deck, when it is
desired to dump.
In the latter position they form guards or sides to prevent anyone from falling
off the fixed deck B, when the load is dumped.
If the load is intended to be entirely discharged by dumping, it is placed entirely
on the deck portions a a of the floats, and when it is desired to dump, the hooks e,
or fastening devices, are released, and the upper parts of the two floats or pontoons
will swing outwards and away from each other, as shewn in Fig. 2, and the load,
whether stone, garbage, or other material, will slide off from the decks on opposite
sides. In their dumping movements, the water which is between the inclined
inner sides c of the floats or pontoons, and which must be expelled to allow them
to come together, forms a cushion which prevents them from coming together with
any injurious shock.
After the load has slipped off the deck pontoons a a, the floats will automatically
resume the position, shown in Fig. 1.

page_text: If the load is not to be got rid of by dumping, the side portions or wings B¹
may be turned down, as shewn in Fig. 1, and the boat is then loaded over its
entire surface.
In order to prevent the two floats from slamming together below the hinges b,
and straining the hinges, I furnish one or both of them with stops s, which may
be of india rubber or other yielding material.
Having now particularly described and ascertained the nature of the said
Invention, and in what manner the same is to be performed, as communicated to
me by my Foreign Correspondent, I declare that what I claim is:-
1. In a dumping boat, the combination of two floats or pontoons having
approximately flat deck portions hinged at their inner sides between their top
and bottom, and adapted to swing downwards and inwards towards each other at
their lower portions, substantially as and for the purpose herein described.
2. In.a dumping boat, the combination of two floats or pontoons hinged together
at their inner sides at a point about half their depth, and having their inner sides
inclined outwards in opposite directions below their hinges, substantially as and for
the purpose herein described.
3. In a dumping boat, the combination with two floats or pontoons hinged
together at their inner sides, so as to swing downwards and inwards towards each
other at their lower portions, in dumping, of uprights or standards having their
lower ends hinged in line with the hinges which connect the floats or pontoons,
and a fixed deck erected upon and supported by said uprights or standards,
substantially as and for the purpose herein described.
4. In a dumping boat, the combination with two floats or pontoons hinged
together at their inner sides, as described, of uprights or standards C hinged at
their lower ends, the deck B, erected upon and supported by said uprights or
standards, and the sliding blocks or collars D and rods or bars E, whereby the
uprights or standards are maintained in vertical position, substantially as herein
described.
5. In a dumping boat, the combination with two floats or pontoons hinged
together at their inner sides, as described, of the uprights or standards C, and the
deck B, fixed to said uprights or standards, and provided with the hinged sides or
wings B¹, substantially as herein described.