Improvements in Means or Apparatus for Cleaning or Removing Barnacles and other Foreign Matter from Ships' Bottoms.
Year: 1889

page_text: Date of Application, 12th Oct., 1889
Complete Specification Left, 12th Aug., 1890-Accepted, 27th Sept., 1890
PROVISIONAL SPECIFICATION.
Improvements in Means or Apparatus for Cleaning or Removing
Barnacles and other Foreign Matter from Ships' Bottoms.
I, DANIEL SISSON of 44 George Street, Blackfriars Road, London, in the County of
Middlesex, Marine Engineer, do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to remove by mechanical means barnacles and other
foreign substances that may adhere to or accumulate on those parts of ships that are
constantly in the water.
For the above purpose I provide framework on which is mounted a shaft carrying
bell crank levers. At one end of these levers is provided a brush or scraper and at
the other end is provided an adjustable counter-balance weight or weights. The
framework carrying the brush or scraper is caused to move over the surface of those
parts of the ship under water in a continuous or reciprocating manner, by being
attached by suitable chains or ropes passed round the ship and connected to a suitable
motor. As the framework is moved downwards or upwards against the ship's side
the brush or scraper is always retained in contact therewith by means of the
counterbalance weight or weights above mentioned, consequently by the backward
& forward movement the scraper or brush removes the barnacles or other foreign
substance that may adhere to the ship's bottom.
Dated this 19th day of October 1889
J. W. HARDING,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Means or Apparatus for Cleaning or Removing
Barnacles and other Foreign Matter from Ships' Bottoms.
I, DANIEL SISSON of 44 George Street, Blackfriars Road, London, in the County of
Middlesex, Marine 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
--
The object of my invention is to remove by mechanical means barnacles and other
foreign substances that may adhere to or accumulate on those parts of ships that are
constantly in the water.
In the accompanying drawings Fig. 1 is a perspective view, shewing apparatus
constructed in accordance with my invention and applied to a boat.
For the above purpose I provide framework or bell crank levers A, provided at one
end with a shaft B on which is mounted a brush C or scrapers, and at the other end
of the combined levers is provided an adjustable counterbalance weight D or weights.
The framework above mentioned formed by the levers A carrying the brush C or
scrapers, is caused to move over those parts of the ship under water in a continuous
reciprocating manner, being attached by suitable chains or ropes E passed round the
ship to a suitable motor.
The brush C can be caused to rotate during its operation by ropes F, actuated by the
motor, or by hand.
As the frame is moved downwards or upwards against the ships side, the brush or
scraper is always retained in contact therewith by means of the counterbalance weight
or weights above mentioned, consequently by the backward and forward movement,
the scraper or brush removes all barnacles or other foreign substances that may adhere
to the ships bottom.

page_text: The runners G and H are for the purpose of steadying the machine or apparatus,
and for retaining it in its vertical position with regard to the ship.
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
The general arrangement, construction and combination of the various parts
forming the Means or Apparatus for Cleaning or Removing Barnacles and other
Foreigu Matter from Ships Bottoms, substantially as herein set forth.
1
J. W. HARDING,
Agents for the Applicant.
J. W. HARDING,
Agents for the Applicant.