11. Having decided on a hydraulic ram design, Leader Williams appointed Edwin Clark as principal designer. 12. Hydraulic rams BOPs were in use by the 1940s.13. These balers are made of steel with a hydraulic ram to compress the material loaded. 14. The Crow's Nest had a blacksmith's shop operated by a spring running a hydraulic ram . 15. Clarke's machine would use a hydraulic ram to insert cylinders of ammonal explosive about underground. 16. Hydraulic rams are used for accessories such as dump truck beds, cranes, loaders, and three-point hitches.17. Rotation was handled by pneumatic motors while elevation and depression of the gun used hydraulic rams . 18. Consequently reloading was done using hydraulic rams fitted outside the two turrets underneath an armoured glacis. 19. The pup trailer, unlike the transfer, has its own hydraulic ram and is capable of self-unloading. 20. Similar to the function of a hydraulic ram the water being admitted is transported by another medium.
