Blue-chip machinery stock Caterpillar Inc (NYSE:CAT) is gearing up for its second-quarter earnings report, due out before the open Tuesday, August 5. Wall Street expects earnings of $4.88 per share, an 18.5$16.35 billion, a 2% year-over-year increase. Ahead of the event, Caterpillar stock is extending its recent streak of record highs, hitting an all-time peak of $439.95 today. The stock has been on a tear since its early-April lows, looking to close ...