Improving Air-Blasting Operations with Off-the-Shelf Options

摘要

When B. C. Tilghman first patented an "improvement in cutting and engraving stone, metal, glass, etc.," his work with controlled particle bombardment had already revealed many possibilities. Notable for its breadth, Tilghamn's patent described fans, steam, water, and air as methods for propelling particles, and it cited boring, grinding, dressing, and pulverizing as additional purposes for his process.