Adjustable intensity mechanical vibrator

Claim 1

IN A ROTATIVELY OPERATED VIBRATION DEVICE ADAPTED FOR ATTACHMENT TO A MEMBER TO BE VIBRATED, A VIBRATILE BODY COMPRISING A PLURALITY OF ROTATABLY MOUNTED HOLLOW SHAFT MEANS ARRANGED FOR DEMOUNTABLE CONNECTION TO SAID MEMBER, A YOKED MEMBER FIXEDLY MOUNTED ALONG THE LONGITUDINAL AXES OF SAID HOLLOW SHAFT MEANS FOR ROTATION THEREWITH, ECCENTRIC WEIGHT MEANS HAVING A HOLLOW BORE FIXEDLY MOUNTED ON ONE OF SAID HOLLOW SHAFT MEANS WITHIN THE CONFINES OF SAID YOKED MEMBER, A SOLID SHAFT AXIALLY DISPOSED WITHIN SAID HOLLOW SHAFT MEANS AND EXTENDED THROUGH THE BORE OF SAID ECCENTRIC WEIGHT MEANS AND THREADED INTO SAID HOLLOW SHAFT MEANS SECURING THE ECCENTRIC WEIGHT, COOPERATING DENTAL TEETH MEANS ON ONE END OF SAID ECCENTRIC WEIGHT AND ON AN ADJACENT ABUTTING END OF SAID YOKED MEMBER, AND AXIAL POSITION LOCKING MEANS ON SAID SOLID SHAFT INCLUDING MEANS PERMITTING LOCKING IN SELECTED AXIAL POSITION OF SAID ECCENTRIC WEIGHT FIXED THERETO FOR PRESELECTED DEGREES OF ECCENTRICITY WITH RESPECT TO THE YOKE AND SOLID SHAFT WHEREBY TO PROVIDE VARIOUS AMOUNTS OF INTENSITY AND AMPLITUDE OF VIBRATORY ENERGY IN ACCORDANCE WITH THE CHARACTERISTICS OF THE WORK TO BE PERFORMED.