| http://www.w3.org/ns/prov#value | - Thus sudden release of air pressure in the air inlet conduit, after the working chamber has been charged, unbalances the pressure acting upon the opposite faces of the piston and the confined air under high pressure causes the piston to be driven in such direction as to unseat the valve, the piston in its initial movement engaging a stop on the valve and thereafter drawing the valve with it in its
|
