Because of the First World War, Wegener's book went unnoticed outside Germany. In 1922, however, a third (revised) edition was translated into English, French, Russian, Spanish, and Swedish, pushing Wegener's theory of continental drift to the forefront of debate in the Earth sciences.
A drilling machine, called a drill press, is used to cut holes into or through metal, wood, or other materials (Figure 4-1). Drilling machines use a drilling tool that has cutting edges at its point.
Based on the nature of work, a hydraulic press may be modified to suit the need. Hydraulic press used in industries are generally converted or built to crush or to press any âprocessâ or the âproduct.For example, this may include steel plates, aluminum rolls, metallic ores, etc. hydraulic press is a device which is used for lifting a heavy or large load by the application of a comparatively much smaller force than is required to lift the load mechanically or manually. slide 1 of 7.