Author Topic: HHO Eudiometer, Oscillating Cartesian Type  (Read 867 times)

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HHO Eudiometer, Oscillating Cartesian Type
« on: January 01, 2013, 01:19:39 am »
HHO Eudiometer, Oscillating Cartesian Type

"The construct consisted of 4 major parts

1. A tall cylidrical water vat
2. A  hollow central guidance post
3 A double walled Cartesian Bell
4 Trip lever for gas release

Since one was using an explosive gas, use of proper eyewear and hearing protection was mandatory. Antistatic
antispark and ventilation protols needed to be followed.

Construction of water vat

For blast risk,containment  and ventilation reasons, the design of the device needed to be 1 litre or less of HHO gas.

A length of perspex was obtained. Inside diameter 10  cm, length 80 cm
This was glued to a circular disc slightly larger that the outside diameter of the perspex tube.
This formed a cyclinder, open on one end and closed at the other, essentially a large perspex test tube.
This structure was then glued to a thicker 24 by 24 cm square as a base.
Construction of Bell guidance post

A length of perspex tube was obtained. Inside diameter 5 cm and 20 cm in length.
This was centered within the  larger water vat cycinder and glued to the base."

(Actual construction was easier if the smaller tube was glued to the base first and then
the large outer tube glued). ed.

"This formed a construct where if water is placed in the space between the walls, no water can flow from the
inner tube to the outer or vice vesra ( assuming water level was less than the height of the inner tube.

A gas entry port was added used to provide space between the bottom of the water vat base and the laboratory table.

Construction of the Cartesian Bell

A section of perspex tube was obtained. It was very thin walled,something simlar to shatter guard for florescent
bulbs. Its inside diameter was slightly larger that the outside diameter of the Bell guidance post.
Then a 1 litre water bottle was used in the following manner. To the bottom of the bottle a perspex washer was glued .
The outside diameter matched the diameter of the  water bottle, the inside diameter was 2 cm greater that the diameter of
of the Bell guidance post.

A series of  water drainage holes was drilled in the bottom of the water bottle. A smaller guidance sleeve was fitted within
the bottle and sealed to the bottom of the bottle. This formed a double walled container simialir to a Dewar flask

Construction of trip lever control

At the top of the construct as the Cartesian Bell rose, it tipped a mercury switch to turn off the HHO solenoid valve
and opened a shunt to release trapped gas

As the bottle tipped slightly as the base of the bottle broke  the surface level of  the water, the air lock was broken, the gas
could  escape and the bottle sank again to repeat the process. A timer was also  added to determine the time to fill one litre.

Additonal slots or rings of holes on the sides of the bell were made and selectively  closed  by a sliding sleeve
 on the Cartesian Bell to vary the amount of gas fill before the next 'dive'. "

A similar construct may be seen at
« Last Edit: January 17, 2013, 11:12:24 am by jim miller »