de and fly in pieces without any visible cause. the hub of one hand, and a split spring ring formed on T. Lubisch claims to have discovered a better method of the other hand and sprung into the groove, and which by its elasticity preserves a constant and uniform fric- hardening glass, or, rather,… … when broken the pieces are not smaller, This invention has recently been pa- BELL'S IMPROVEMENT IN WATCH HANDS. asa rule, than those which would result tented in this country, in Canada, Great from breaking an ordinary glass vessel, Britain, France, Belgium, Germany, Spain, Italy, and Austria by…
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