21. The piston rod also passed through a gland on the top cylinder cover sealed in a similar way. 22. The high-and low-pressure cylinders were mounted in vertical line with each other, with the piston rods in parallel. 23. The engine has crosshead bearings so that the always-vertical piston rod allows a tight seal under the piston. 24. The piston had a maximum travel of 5 meters and the piston rod was 35 centimeters in diameter. 25. Since the piston rod and crosshead was forged in one piece, the connecting rod small-end had to be forked. 26. The term " piston rod " has been used as a synonym for'connecting rod'in the context of these engines. 27. This avoids the crosshead, piston rod and its sealing gland, but it also makes a single-acting piston almost essential. 28. In a rotative beam engine, the piston is mounted vertically, and the piston rod drives the beam as before. 29. "Bruix " made port visits in Spain and Portugal in June before another piston rod was damaged on the 7th. 30. A small plenum was left exposed between the cylinder's piston rod stuffing box and another gland seal into the crankcase.