Rock crushing machines

Claim 1

A ROCK CRUSHER COMPRISING: A BASE, FIRST AND SECOND DOWNWARDLY CONVERGING CRUSHING JAWS SUPPORTED BY SAID BASE, A HORIZONTALLY DISPOSED SHAFT MOUNTED FOR ROTATION IN SAID BASE, AND MEANS FOR ROTATING SAID SHAFT, AN ECCENTRIC FIXED TO SAID SHAFT, MEANS FOR IMPARTING A COMPOUND MOVEMENT TO SAID FIRST JAW TOWARD, DOWNWARDLY, AND AWAY FROM SAID SECOND JAW, SAID MOVEMENT COMPRISING: (A) A ROTARY MOVEMENT TOWARD, DOWNWARDLY AND AWAY FROM SAID SECOND JAW, IMPARTED BY SAID ECCENTRIC, PLUS (B) A ROCKING MOVEMENT AROUND SAID ECCENTRIC, ADDING DOWNWARDLY TO THE SAID DOWNWARD ROTARY MOVEMENT, SAID MEANS COMPRISING: A HORIZONTALLY EXTENDING CARRIER MOUNTING THE FIRST JAW ON ITS INNER END, SAID CARRIER BEING DISPOSED PERPENDICULARLY TO SAID SHAFT, A BEARING IN SAID CARRIER ABREAST SAID FIRST JAW AND AT SUBSTANTIAL VERTICAL DISTANCES RESPECTIVELY FROM THE TOP AND BOTTOM THEREOF, SAID BEARING BEING MOUNTED ON SAID ECCENTRIC, A VERTICAL LINK PIVOTALLY ATTACHED AT ONE OF ITS ENDS TO THE OUTER END OF SAID CARRIER, SAID BEARING BEING BETWEEN SAID FIRST JAW AND SAID OUTER END, AND A BEARING BLOCK MOUNTED ON SAID BASE AND PIVOTALLY ATTACHED TO SAID LINK AT THE OTHER END OF THE LATTER, SAID BEARING BLOCKING BEING MOUNTED ON SAID BASE FOR VERTICAL MOVEMENT RELATIVELY THERETO, AND SPRING MEANS URGING SAID BLOCKING DOWNWARDLY TO A NORMAL POSITION WHILE PERMITTING LIMITED UPWARD MOVEMENT FROM SAID NORMAL POSITION.