IMPROVEMENTS IN THE CONSTRUCTION OF DREDGING APPARATUS
Year: 1882

page_text: LETTERS PATENT to George Edward Vaughan, of 67 Chancery Lane in the
county of Middlesex, Patent Agent, for an Invention of "IMPROVEMENTS IN
THE CONSTRUCTION OF DREDGING APPARATUS" Communicated to him
from abroad by Simon Meinesz, of Brussels in the Kingdom of Belgium.
PROVISIONAL SPECIFICATION left by the said George Edward Vaughan at
the Office of the Commissioners of Patents on the 30th November 1882.
GEORGE EDWARD VAUGHAN, of 67 Chancery Lane, in the County of Middlesex,
Patent Agent,
"IMPROVEMENTS IN THE CONSTRUCTION OF DREDGING APPARATUS,"
a communication to me from abroad by Simon Meinesz, of Brussels, in the
Kingdom of Belgium,
"
This invention consists in an improved dredging apparatus composed of a series
of steel blades arranged to work on the bottom of a river or of the sea.
By their construction the said blades force the sand which they dredge up to
accumulate upon their upper extremities whence it is driven to the surface of the
water by means of a current of compressed air or any other element as hereinafter
described.
The said apparatus is composed of a frame with wheels or rollers, and which
frame is provided with a cross bar on which are connected a number of steel blades
arranged with their points projecting downwards from the said cross bar. At the
upper ends of these blades and partially underneath the same is placed a pipe
conducting compressed air or water from a strong force pump, which air or water
is to drive upwards, as it emerges through small holes or perforations in the upper
surface of the last mentioned pipe, the sand brought within its reach by the said
blades
The said pipe receives the compressed air or water through pipes descending from
the boat whence the pressure is imparted.
The last mentioned pipes are, by preference, made of leather or india rubber.
The apparatus is connected with a boat by means of two coupling rods and in
order that it should not be subjected, by such connection with the boat, to the
effects of a high sea the coupling rods are arranged on the sides of the ship so that
[Price 1

page_text: the extremities thereof slide respectively along the base of a triangle which may be
made of any required size.
When it is necessary to work the apparatus it will suffice to connect the boat
with it in the manner hereinbefore specified, an air force pump or a water force
pump being provided, with which pump are connected the pipes starting from each
side of the boat and adapted to the before mentioned perforated tube or pipe.
The said preparations having been terminated it will be sufficient to let the
apparatus fall to the bottom, and the travelling of the boat will make it perform
its work.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said George Edward Vaughan in the Great Seal Patent Office on the
29th May 1883.
"
""
GEORGE EDWARD VAUGHAN, of 67 Chancery Lane, in the County of Middlesex,
Patent Agent,
IMPROVEMENTS IN THE CONSTRUCTION OF DREDGING APPARATUS,"
A communication to me from abroad by Simon Meinesz, of Brussels, in the Kingdom
of Belgium,
This invention consists in an improved dredging apparatus composed of a series
of steel blades arranged to work on the bottom of a river or of the sea.
By their construction the said blades force the sand which they dredge up to
accumulate upon their upper extremities whence it is driven to the surface of the
water by means of a current of compressed air or any other element as hereinafter
described.
As may be seen from Figure 1 of the accompanying drawings the said apparatus
is composed of a frame with wheels or rollers a and which frame is provided with
a cross bar A on which are connected a number of steel blades B. arranged with
their points projecting downwards from the said cross bar. At the upper ends of
these blades and partially underneath the same is placed a pipe c conducting com-
pressed air or water from a strong force pump, which air or water is to drive
upwards as it emerges through small holes or perforations d. in the upper surface
of the last mentioned pipe, the sand brought within its reach by the said
blades B.
The said pipe c. receives the compressed air or water through the pipes c'.
descending from the boat whence the pressure is imparted
Figure 2 is a top view of the apparatus. The last mentioned pipes o¹. are, by
preference, made of leather or india rubber. The apparatus is connected with a
boat by means of two coupling rods D. and in order that it should not be subjected
by such connection with the boat to the effects of a high sea the coupling rods D.
are arranged on the sides of the ship in the way shown in Figure 4., the extremities
thereof slide respectively along the base of a triangle which may be made of any
required size.

page_text: Figure 3 is an enlarged detached view of a blade B. of any required size. When
it is necessary to work the apparatus it will suffice to connect the boat with it in
the manner herein before specified, an air force pump or a water force pump being
provided, with which pump are connected the pipes starting from each side of
the boat and adapted to the before mentioned perforated tube c. at the point v of
the design
The said preparations having been terminated it will be sufficient to let the
apparatus fall to the bottom of the water and the travelling of the boat will cause
it to perform its work.
Having thus described and ascertained the nature of the said Invention and the
manner in which it is to be performed I would observe in conclusion that what I
consider novel and original and therefore claim as constituting the invention secured
to me by the said hereinbefore in part recited Letters Patent, is :-
In dredging apparatus the combination and arrangement of the blades B., with
the pipes c. c. c. the pipes c. c'. being connected to an air or water force pump,
substantially as herein before set forth and described.
In witness whereof I the said George Edward Vaughan have hereunto set
my hand and seal this twenty ninth day of May in the year of our Lord
One thousand eight hundred and eighty three.
GEO. E. VAUGHAN. (L.B.)