Blake’s design which utilized a toggle linkage construction was known as the Blake Jaw Crusher. Blake’s crusher was announced in 1857 and patented in 1858. Perhaps surprisingly the same basic design is still in use today for rock crushers. In the years following the design of the Blake Jaw Crusher another type of crusher was designed.
the introduction of curved (non-choking) jaw plates. The original Blake crusher was designed with a vertical stationary jaw. Probably the first departure from this arrangement was an 84 X 66″ crusher built in 1914. This machine conventional design in that the swing jaw was made vertical.
The jaw crusher is of the curved dynamic extrusion type and the materials are crushed in the crushing cavity composed of the moving jaw and the fixed jaw. The hammer crusher is mainly broken by the impact shear and tear of the rotating hammer head the mutual impact between materials and the counterattack of the lining plate.
Figure 4 Blake Jaw Crusher Dodge Jaw Crusher Dodge jaw crusher is a type of crusher in which the the swing jaw is pivoted at bottom position it has a greater tendency to choke. The amount of motion is greatest at the top of “V”.