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This innovation is offered free ("Open s
ource") in the hope it may help flood victims and others
to clear large volumes of water cheaply and speedily.
It is effective for only low heads of water -
that is, the end of the discharge pipe may be only a foot or two
(less than a metre) above the water level, depending on the size
of the motor and the length of the discharge pipe.
Description
The figure below shows a side view of the unit.
An outboard motor is seated and clamped to modified outboard motor
cradle, which is itself securely fastend down, either to the ground,
or in deeper water, to an immovable platform.. Its propellor is
submerged to a normal working depth. The propellor is enclosed
in a cylinder (a rectangular panel should be cut out of the top
of the cylinder to allow it to accept the propellor.) Make sure
that the propellor blades are securely clear of the tip of the
propellor). A discharge pipe is fixed to the end of the cylinder.
The end of the discharge pipe is led out to a conduit for the
water - ditch or drain. The discharge pipe must be fixed down
securely. Start the motor. Keep the running unit under surveillance
to ensure that it does not malfunction or dry out.
The next figures show plan and end views.
I hope someone finds this useful. I have made
one and trialled it in the local river. It works. Please give
me feedback of any experience with this invention by using the
contact button on the navigation bar.
(c) Richard Lawson 6th September 2005
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