They provide a square cut and can be used in close quarters in the ditch, underwater, in noise-free zones... Reed Manufacturing's 700APD Power Drive is a portable, pneumatic, heavy-duty power drive ...

Abstract: In this letter, a simple but very effective theoretical analysis is presented for the first time to model an asymmetric split-cylinder resonator (SCR) formed by the loading of multilayer ...

These were turned from a scrap of aluminum rod and an old flange-head bolt; when air pressure is applied, the bolt is drawn into the cylinder, which locks the arm in place. To make it easy to ...