An Improved Apparatus for Removing Accumulations of Mud, Silt, or Sand in Rivers and Tideways.
Year: 1894

page_text: Date of Application, 2nd Feb., 1894
Complete Specification Left, 3rd Dec., 1894-Accepted, 26th Jan., 1895
PROVISIONAL SPECIFICATION.
An Improved Apparatus for Removing Accumulations of Mud, Silt,
or Sand in Rivers and Tideways.
I JOHN MORCOMBE BROMLEY BAKER 34 Methley Street Kennington S.E.
Dredging Contractor do hereby declare the nature of this invention to be as
follows:-
I cause a tube fitted to and carried by gimballs to traverse a screw or rack, by
which means the centre may be altered (unlike my former invention No. 1024 of
1889, which had a fixed centre only) and the tube or tubes directed and used outside
the width of the vessel carrying them-so covering a much larger area at one.
operation.
The tubes are not telescopic but of various lengths to suit the special requirements
of the moment and are raised and lowered by means of a rack & pinion or other
suitable gear.
J. M. B. BAKER.
An Improved Apparatus for Removing Accumulations of Mud, Silt,
or Sand in Rivers and Tideways.
I JOHN MORCOMBE BROMLEY BAKER of 34 Methley Street, Kennington, S.E.
Dredging Contractor, 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 relates to improvements on a former invention, for which I
obtained Letters Patent, numbered 1024 of 1889, and the present improvements
consist in causing a tube fitted to and carried by gimballs to traverse a screw or
rack, by which means the centre may be altered (unlike my aforesaid former
invention which had a fixed centre only) and the tube or tubes directed and used
outside the width of the vessel carrying them so covering a much larger area at one-
operation. Moreover the tubes are not telescopic, but of various lengths to suit the
special requirements of the moment, and are raised and lowered by means of a rack
and pinion or other suitable gear.
And in order that my said invention may be fully understood I will now proceed
to describe the same with reference to the drawings accompanying this Specification,
in which
Fig. 1. shews a front elevation, (athwartship) of a vessel having my improvements.
adapted thereto; Fig. 2. shews an end view of the same.
The same letters denote the same parts in both views.
a shews splayed well formed in the construction of the vessel, and splayed fore
and aft, and also port and starboard. b, shews the deck line on to which I bolt or
otherwise secure two frames cc having bearings d d at the upper part, in one of
which is carried a rack e and in the other a bar f(shewn in Figure 2) on which
rack and bar a frame g carrying gimballs hand sleeve i travels, by means of pinion s.
TD 017

page_text: On the sleeve i, I fix two toothed quadrants tt (actuated respectively by
worms kk), one of which gives fore and aft motion to the sleeve i and the other
athwartship motion. In the sleeve i I place a tube / having affixed to it a rack m,
which projects through a slot in the sleeve i. The rack m is actuated by a wheel n
On the lower end
and a pinion, for the purpose of raising and lowering the tube l.
P,
of the tube I fix a union q, to which may be attached a further length of tube
or branch pipe as circumstances require. The lower end is fitted with a nozzle r;
the upper end of the tube is also fitted with a union, to which is attached the hose-
pipe u, from the pumping engine.
The action is as follows:-
When it is required to remove any accumulation over which the vessel is placed,
I lower the tube 1, by means of the rack m, until the nozzler is within about a foot
of such accumulation. A jet of water is then caused to pass through the tube lat
high pressure and this disperses the matter immediately below it, which matter is
carried away by the ebb tide or current. In order that the above operation may be
continuous over the whole area to which the tubes may be made to reach, they are
It will follow that
caused to oscillate by means of the worms k k and quadrants t t.
with each shifting of the centre a fresh area may be operated upon; and a
considerable area (outside the vessel) can be dealt with, dependent upon the extent
to which the tubes / may be lowered.
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. In apparatus for removing accumulations of mud, silt or sand in rivers and
tide-ways the traversing gear consisting of the racke and pinion s, arranged so that
the centre on which the tube is mounted may be shifted either to port or starboard
as may be required.
tube
p
2. In apparatus for removing accumulations of mud silt or sand from rivers or
tide-ways, the splayed well a frames c c, bearings dd, rack e, bar f, frame g,
and nozzler all
gimballs h, sleeve i, quadrants tt, worms kk, tube l, rack m,
arranged and operated substantially as and for the purposes set forth.
3. Apparatus for removing accumulations of mud silt or saud from rivers or tide-
ways constructed substantially as set forth.
Dated thin Third day of
11001
BROWNE & Co.,
9, Warwick Court, Gray's Inn, London, W.C.,
Agents for the Applicant.