He next invented an asp, employed in the tragedy of
'Cleopatre,' which hissed and darted at the bosom of the actress.
Vaucanson, however, did not confine himself merely to the making of
automata. By reason of his ingenuity, Cardinal de Fleury appointed
him inspector of the silk manufactories of France; and he was no
sooner in office, than with his usual irrepressible instinct to
invent, he proceeded to introduce improvements in silk machinery.
One of these was his mill for thrown silk, which so excited the
anger of the Lyons operatives, who feared the loss of employment
through its means, that they pelted him with stones and had nearly
killed him. He nevertheless went on inventing, and next produced a
machine for weaving flowered silks, with a contrivance for giving a
dressing to the thread, so as to render that of each bobbin or
skein of an equal thickness.
When Vaucanson died in 1782, after a long illness, he bequeathed
his collection of machines to the Queen, who seems to have set but
small value on them, and they were shortly after dispersed. But
his machine for weaving flowered silks was happily preserved in the
Conservatoire des Arts et Metiers, and there Jacquard found it
among the many curious and interesting articles in the collection.
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