Image Number 3 for United States Patent #8129063.
A hydrogen production apparatus 1 is constructed in which when work 3 is close to a supply hole 7, a strut 22 is pushed to open the supply hole 7, and when erosion of the work 3 progresses to cause the strut 22 to protrude, the supply hole 7 is closed with a seal member 24, so that products do not stay on the work 3, a reaction solution 12 is not fed to portions other than the work 3, and even if the attitude of the apparatus is changed, a hydrogen production reaction can be controlled appropriately.
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