Vibratory polisher

Claim 1

A VIBRATORY MACHINE FOR USE IN POLISHING SMALL METALLIC ARTICLES, PRECIOUS AND SEMI-PRECIOUS STONES AND THE LIKE COMPRISING THE COMBINATION OF: A BASE MEMBER HAVING SUPPORTING STANDARDS EXTENDING UPWARDLY THEREFROM IN OPPOSED SPACED RELATIONSHIP; A POLISHING DRUM REMOVABLY MOUNTED ON AN INTERMEDIATE CRADLE, SAID CRADLE SUSPENDED BETWEEN SAID STANDARDS BY SPRING MEANS, SAID SPRING MEANS COMPRISIED OF TWO ELONGATE BENDABLE FLEXURE MEMBERS, ONE END OF EACH SAID FLEXURE MEMBERS FIXED TO ONE OF SAID STANDARDS, SAID FLEXURE MEMBERS EXTENDING IN SPACED PARALLEL PLANES WITH THEIR LONGITUDINAL AXES ANGULARLY DISPOSED, THE OTHER ENDS OF SAID FLEXURE MEMBERS FIXED TO SAID INTERMEDIATE CRADLE; A VIBRATORY UNIT MOUNTED ON SAID BASE AND CONNECTED TO SAID POLISHING DRUM, SAID VIBRATORY UNIT COMPRISED OF A MOTOR MOUNTED ON SAID BASE, SAID MOTOR HAVING A ROTATING DRIVE SHAFT EXTENDING OUTWARDLY THEREFROM, AN ECCENTRIC MOUNTED ON SAID DRIVE SHAFT FOR ROTATION THEREWITH, SAID ECCENTRIC JOURNALLED WITHIN A BRACKET DEPENDING DOWNWARDLY FROM SAID CRADLE, AND MEANS FOR VARYING THE ROTATIONAL SPEED OF SAID MOTOR IN ORDER TO VARY THE FREQUENCY OF VIBRATIONS IMPARTED TO SAID POLISHING DRUM.