| Show I 1 elbr e ak ab le glass i N I 1 some home curious experiments in glasa which were quite novel to my myself eif elf though I 1 cannot say whether they may be so te to what whitt is tech technically called the trade trader took place before the french academy of sciences at the institute last week and s sem seem em deserving of some mention if I 1 am repeating only what aswell is well weil known already or cr has been even eleft carried to a further furtherer extent by american manufacturers odthe of the article in question emust I 1 must apologize for my rny ignorance but what was exhibited at the french institute seemed very extraordinary and was regarded by all present aa as representing something which ch has been consid considered emd end as hitherto unattainable Ther there ewas was brought in what is regarded inmost in most french domestic establish establishments men ts as an article of or indispensable household nece dece sity fity ra millar familiar under the name of a verre d ecru eau and which consists ofa ora of a stand a water bottle two glasses glasse i and a sugar basin all of glass to which is generally nene rally ap a smaller bottle for flew dora cL orange noc the whole being intended of course for the fabrication of that most uni universal verbal vereal of drinks all ali classes clashes of french people fron from the orator in the tribune ta to the abo concierges wife in her loge a glass of cau eau ducree well all these different objects water bottle glasses sugar basin stand itself were taken up separately by JM de aubac the well known member of or the society for the encouragement coura gemenI gement of french tures i res and aud on the responsibility of t th e 6 inventor ventoe M U de do la bastle bastie pitched one a after the other to a considerable bie ble uld dista elce fice and to our llo rio no small smail asto without giving rise to any occasion for picking up the pieces therall they all nil B fact remained remal ped unbroken and uninjured th the e secret of un break brenk able abie glass 11 that thit great boon to the pellice peace of nami rami lies lieg and the nerves of housekeepers edep seemed Beer been ned to be solved there were several ladies looking orji dili on and nd you may imagine I 1 m the ohp deep interest they took in a discovery which promised security to 16 many of the most cherished objects of their chambre a ci coucher and their I 1 dinnen dinner table rabies s even avell 8 or sconces for mind candies candles les ies of the very lightest and thinnest description were thrown down upon the floor from which they rebounded again without yiu niu Yil hout the slightest Iii injury jury the leeret secret ot invaluable property roper to eitts eltas 11 8 d does oes not it appears consist colakis it in any part particular lular iular method of fabrication any sort fort of f glass c can ean ddn be rendered unbreakable abbe by a subsequent process to which it ha has s to be submitted for this purpose the process consists in nii tempering or hardening the glass after it is made tremper is the french word us used ed to io express the operation by immersing jt in a solution n at the I 1 heat at which it usually melts the composition of or the solution and the heat at which it I 1 is 8 to b be 0 applied vary with the quality of the ibe glass which is to besu beau be submitted mattea to it IL of what the composition composed compo sitio sid ou consists ther thel exact mode of using 1 il and of procuring its results the inventor of noor course ze told fold us nothing but a large largo usina de trem page rage or glass tempering works is not noi in to course of erect loff at pont d dAin ain aln in the ain near bourg for foi fo carrying on the process q on a large jarge scale I 1 am t tid ld bat that at the society for the enczur argement af pf of manufactures manufactured itself the experiments were lately exhibited in a still more remarkable ma manner tiner and that while plates of ordinary glass there broke to pieces by a fall of one yard those of tempered glass fell felt uninjured from a height of fon r yards and aud when evert struck violently with a hammer bammer broke only ilke flint or granite grante jai pat datis faris is corraz correspondent phio butze butte tin in |
