Portable rock breaking device

Claim 1

A PORTABLE ROCK BREAKING DEVICE FOR USE WITH A MOBILE PRIME MOVER, WHICH DEVICE COMPRISES; (A) AN OUTWARDLY EXTENDING FRAME PIVOTALLY MOUNTED ON AND EXTENDING UPWARDLY FROM A SIDE OF THE PRIME MOVER, (1) SAID OUTWARDLY EXTENDING FRAME HAVING A SHEAVE PULLEY MOUNTED THEREIN NEAR THE UPPER END THEREOF, (B) HOISING MEANS MOUNTED ON THE PRIME MOVER AND BEING CONNECTED TO SAID OUTWARDLY EXTENDING FRAME TO MOVE SAID OUTWARDLY EXTENDING FRAME RELATIVE TO THE PRIME MOVER, (C) A SECOND HOISTING MEANS, (D) A CABLE MOUNTED ON SAID SECOND HOISTING MEANS AND EXTENDING OVER SAID SHEAVE PULLEY, (E) A HAMMER FRAME, WHICH COMPRISES AN UPPER SECTION AND A LOWER SECTION, WHICH FRAME IS SUSPENDED, BY THE UPPER END THEREOF, FROM THE CABLE, TO VARY THE ELEVATION THEREOF, (1) A FLUID CYLINDER MOUNTED ON THE LOWER END OF SAID HAMMER FRAME, (2) A FLUID ACTUATED PLUNGER MOUNTED IN SAID FLUID CYLINDER FOR SEQUENTIAL RECIPROCATION THEREIN, (3) A FLUID SUPPLY MEANS, (4) A FLUID CONDUIT CONNECTED BETWEEN AN END OF SAID FLUID CYLINDER AND SAID FLUID SUPPLY MEANS TO SUPPLY FLUID, UNDER PRESSURE, TO SAID FLUID CYLINDER TO RECIPROCATE SAID PLUNGER IN SAID FLUID CYLINDER, (F) A SECOND FLUID CYLINDER PIVOTALLY MOUNTED ON SAID OUTWARDLY EXTENDING FRAME, THE PLUNGER OF WHICH EXTENDS OUTWARD THEREFROM AND IS CONNECTED TO THE LOWER-MOST OF SAID HAMMER FRAME SECITONS, TO VARY THE ANGULARITY THEREOF WITH RESPECT TO THE VERTICAL.