21. In industrial use, a hydraulic ram or falling weight ('trip hammer') drives a chisel into the material. 22. Relatively rapid actuation and remote control were facilitated, and hydraulic rams were well-suited to high pressure wells. 23. Another example of TFL is the internal stresses on a hydraulic ram operating in a vibrational environment. 24. The ride packs down onto one trailer as the center pole folds down on a hydraulic ram . 25. Hydraulic rams moved the car from side to side along these arms, tilting it up to 8.5 degrees.26. The last recorded fatality at Gretley Mine was in 1991 when a hydraulic ram fell on a miner. 27. They were controlled by hydraulic rams and were fed information from gyroscopes which sense the vessel's rolling motion. 28. Nonsense of course, but even something as silly as that could lead to an idea like the hydraulic ram . 29. A pair of hydraulic rams were mounted on the second level, reaching nearly halfway up to the third level. 30. Other tine grabs use hydraulic closure with a hydraulic ram on each tine providing independent motion and improved penetration.
