Sanding machine has balance beam, which enables cross-sectional displacement of each pair of contiguous blocks in opposite directions, while both blocks have skids slidingly mounted on cross-sectional guides on large stone bench

摘要

A balance beam enables cross-sectional displacement of each pair of contiguous blocks in opposite directions. The blocks have skids slidingly mounted on cross-sectional guides on a large stone bench. A drag bar associated with the contiguous blocks is horizontally moved or swung by a connecting rod and motor-driven eccentric. Each block supports the carrying shaft of a brush locking device.