Point engraving tool - for engraving glass to produce individual decorative patterns by producing indentations

摘要

Point engraving tool comprises a pneumatic device to vibrate a hammer. The pneumatic vibrator comprises a source of compressed air, air jets, a cylinder with a piston disposed inside it, a connection between one end of the cylinder and the source contg. an orifice which could be closed by and hidden in the hand and a spring which urges the piston towards a fixed position in the cylinder. Hammered glass artwork, which in prior art takes months, can be completed in a very short time.