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Babbage, Charles, 1792-1871

"On the Economy of Machinery and Manufactures"


114. Of embossed china. Many of the forms given to those
beautiful specimens of earthenware which constitute the equipage
of our breakfast and our dinner-tables, cannot be executed in the
lathe of the potter. The embossed ornaments on the edges of the
plates, their polygonal shape, the fluted surface of many of the
vases, would all be difficult and costly of execution by the
hand; but they become easy and comparatively cheap, when made by
pressing the soft material out of which they are formed into a
hard mould. The care and skill bestowed on the preparation of
that mould are repaid by the multitude it produces. In many of
the works of the china manufactory, one part only of the article
is moulded; the upper surface of the plate, for example, whilst
the under side is figured by the lathe. In some instances, the
handle, or only a few ornaments, are moulded, and the body of the
work is turned.
115. Glass seals. The process of engraving upon gems requires
considerable time and skill. The seals thus produced can
therefore never become common. Imitations, however, have been
made of various degrees of resemblance.


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