Infinitengines "Dreamair" pneumatically powered, cable transmission/roller drive system speargun.
http://infinitengines.com/
A proposed pneumatic speargun of a very different layout, but maybe it works better on paper than it will in the real world where cables have mass and momentum and can deviate from where they are supposed to go in milliseconds. An imaginative idea even so, but not very practical as complexity always brings with it added potential for failure where only one part not functioning can bring down all rest.
http://infinitengines.com/
A proposed pneumatic speargun of a very different layout, but maybe it works better on paper than it will in the real world where cables have mass and momentum and can deviate from where they are supposed to go in milliseconds. An imaginative idea even so, but not very practical as complexity always brings with it added potential for failure where only one part not functioning can bring down all rest.