Shock and vibration isolator for machinery and the like

Claim 1

IN A VIBRATION AND SHOCK ISOLATING MOUNTING FOR OBJECTS SUCH AS MACHINERY AND THE LIKE, THE COMBINATION OF A BASE PLATE ADAPTED TO REST UPON A FLOOR, A LOAD SUPPORTING PLATE UPON WHICH THE OBJECT TO BE SUPPORTED MAY REST, A PAIR OF CIRCULAR RACEWAYS EACH COMPRISING AN INWARDLY CURVED TROUGH WITH A LOW POINT APPROXIMATELY CENTRALLY OF THE WIDTH THEREOF AND INCLINED SURFACES LEADING FROM SAID LOW POINT TO HIGH POINTS AT THE OUTER EDGES OF SAID TROUGH, SAID RACEWAYS BEING SECURED IN OPPOSED RELATION RESPECTIVELY TO SAID BASE PLATE AND SAID LOAD SUPPORTING PLATE, A PLURALITY OF BEARING BALLS EACH HAVING A DIAMETER SUBSTANTIALLY SMALLER THAN THE WIDTH OF SAID TROUGHS, SAID BEARING BALLS BEING ARRANGED IN SPACED RELATION IN CIRCULAR ARRAY THROUGHOUT THE DIAMETER OF SAID RACEWAYS AND SERVING TO SUPPORT SAID LOAD SUPPORTING PLATE UPON SAID BASE PLATE, ONE OF SAID PLATES HAVING A CIRCULAR OPENING OF PREDETERMINED DIAMETER EXTENDING THERETHROUGH, A CYLINDRICAL BOSS FIXED UPON THE OTHER OF SAID PLATES, SAID BOSS HAVING A DIAMETER LESS THAN THE DIAMETER OF SAID OPENING AND SAID BOSS EXTENDING THROUGH SAID OPENING TO SERVE WITH SAID OPENING AS STOP MEANS FOR LIMITING TO SUBSTANTIALLY IDENTICAL EXTENTS THE AMPLITUDE OF RELATIVE MOVEMENT IN ANY HORIZONTAL DIRECTION BETWEEN SAID BASE PLATE AND SAID LOAD SUPPORTING PLATE, AND RESILIENT MEANS CONNECTED WITH SAID BASE PLATE AND SAID LOAD SUPPORTING PLATE FOR YIELDABLY RESISTING ANY HORIZONTAL MOVEMENT BETWEEN SAID BASE PLATE AND SAID LOAD SUPPORTING PLATE.