Improvements in or connected with Suction Dredging Apparatus.
Year: 1893

page_text: Date of Application, 12th Oct., 1893
Complete Specification Left, 5th July, 1894-Accepted, 11th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in or connected with Suction Dredging Apparatus.
I, FRANCIS GOULD MORONY STONEY, of Waterside Works, Ipswich, in the
County of Suffolk, Engineer, do hereby declare the nature of this invention to be
as follows, that is to say :-
My said invention has for its object to increase the effectiveness of suction
dredging apparatus, and to obtain action on a greater width of earth than is dealt
with by the ordinary suction pipe.
In carrying out my invention I form the bottom end of the suction pipe with a
broadened and flattened mouth presenting a comparatively narrow opening; and I
extend the under lip of the mouth a short distance beyond the upper lip. I also
arrange a set of rotating diggers or agitators just above and close to or near the
extreme edge of the under lip, the shaft of the diggers or agitators being horizontal
and parallel to the under lip, and being driven from the dredger by a chain
or in any other convenient way.
The diggers or agitators loosen the earth and cause it to be mixed with or
suspended in the water so that a larger portion of it is drawn along with the water
through the suction pipe.
Dated this Eleventh day of October 1893.
EDMUND HUNT,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in or connected with Suction Dredging Apparatus.
I, FRANCIS GOULD MORONY STONEY, of Waterside Works, Ipswich, in the
County of Suffolk, 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, that is say :-
My said invention has for its object to increase the effectiveness of suction
dredging apparatus, and to obtain action on a greater width of earth than is dealt
with by the ordinary suction pipe.
In carrying out my invention I form the bottom end of the suction pipe with a
broadened and flattened mouth presenting a comparatively narrow opening; and I
extend the under lip of the mouth a short distance beyond the upper lip. I also
arrange a set of rotating diggers or agitators just above and close to or near the
extreme edge of the under lip, the shaft of the diggers or agitators being horizontal
and parallel to the under lip, and being driven from the dredger by a chain or in
any other convenient way.
And in order that my said invention and the manner of performing the same may
be properly understood I hereunto append a sheet of explanatory drawings, to be
hereinafter referred to, and showing my improvements.
Figure, 1, of the drawings is a sectional plan, and Figure, 2, a transverse vertical
section. In these drawings the same reference letters are used to mark the same
or like parts wherever they are repeated.
I form the bottom end of the suction pipe, A, with a broadened and flattened
mouth, B, presenting a comparatively narrow opening; and I extend the under

page_text: lip, C, of the mouth a short distance beyond the upper lip, D. I also arrange a
set of rotating diggers or agitators, E, just above and close to or near the extreme
edge of the under lip, C, these diggers being fixed on a shaft, F, which is horizontal
and parallel to the under lip, and is driven from the dredger by a chain, G, or in
any other convenient way. The shaft, F, is carried in bearings in brackets, H,
formed or fixed on the suction pipe, A.
The diggers or agitators, E, loosen the earth and cause it to be mixed with or
suspended in the water so that a larger portion of it is drawn along with the water
through the suction pipe, A.
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 :-
In or connected with suction dredging apparatus, the combination of a suction
pipe having a broadened, and flattened, bottom opening, with a set of rotating
diggers or agitators, substantially as and for the purposes hereinbefore described.
Dated this Fourth day of July 1894.
EDMUND HUNT,
Applicant's Agent.