Examples of use of at intervals
1. "He is in bouts of consciousness, but only at intervals.
2. At intervals, the guards returned to administer beatings.
3. Each day, power is cut off at intervals _ two hours off every six hours.
4. Three timer–device bombs that went off at intervals of five minutes from 7 p.m.
5. Italy‘s star loner has been toughing it out at intervals over 20 years.