Duchesne Courier | 1926-12-10 | Page 8 | Glass-Making Secret

Glass Making Secret Secret The Tho of flaked cd glass for office ollice partitions and windows Is based lasel on oi on the use- use of automatically controlled gas heating 1 The process Is similar to that employed employed em em- llo cd b by the A Indians In making flint arrowheads The rhe flint was was shaped h by hailing ling l the he stone and dropping cold water cold on it each cacti drop lL p causing cousing a chip of stone to tl fly off off lie he- use cause cause of of l the r sudden sudden contraction tf n caused by hy the water The rile glass to 4 be treated iu i j l first sand sand- blasted This rills p n n milky frosted frosted frost frost- ed surface The lle is th then il c coated coaled aleI with glue ond subjected t t to ian in gradual 1 l at drying profess process in In Ina a gas ga's tits fired fired o oven n. n The fhe dl drying causes canses the glue to contract contract con con- tract and thi this In turn lurn makes males the glass shrink and shrivel el off in flakes es