TABLE VIBRATOR Russian patent published in 1998 - IPC

FIELD: moulding and compaction of concrete mix. SUBSTANCE: table vibrator working member 1 is installed on flexible spacers 2 fastened to supports of base 3. Working member carries vibrating actuator 4 imparting vibration of relatively high frequency to it. To impart low-frequency vibration to working member, air cylinders 6, rods 5, which are linked to working member, are installed between it and base. Cavities of air cylinders through air distributor 10 communicate with air line and atmosphere. Provision of air cylinders makes it possible to realize different vibration conditions. EFFECT: enhanced efficiency. 2 cl, 1 dwg