LAPIDARIST'S MACHINES AND ATTACHMENTS THERETO AND PARTS THEREOF-NAMELY, LAPIDARYUNITS, IN DIFFERENT SIZES, BEING A COMPLETE MACHINE FOR CUTTING AND POLISHING GEM STONES, CONSISTING OF A DIMOND SAW, GRINDING WHEELS, SANDING WHEELS, POLISHINGBUFF, SPINDLE, ROCK CLAMP, TUB,BENCH SAWDRUM SANDER; LAPIDARY ARBOR; DIAMOND SAWBLADES; AUTO-FEED ATTACHMENT, FOR USE WITH DIAMOND SAWS, CONSTSING OF A POWER FEE MOTION OF THE CARRIAGE HOLDING THE ROCK AS IT FEEDS INTO THE SAW BLADE,