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Smith, G. / The laboratory; or, School of arts: containing a large collection of valuable secrets, experiments, and manual operations in arts and manufactures, highly useful to gilders, jewellers, enamellers, goldsmiths, dyers, cutlers, pewterers, joiners, japanners, book-binders, plasterers, artists, and to the workers in metals in general; and in plaster of paris, wood, ivory, bone, horn, and other materials
(1799)
Part VI. A collection of very valuable secrets for the use of smiths, cutlers, pewterers, braziers, book-binders, joiners, turners, japanners, &c, p. 223
Page 223
ZXPERIM2NTS ON IRON AND tTEEL.
PART VL
A COLLECTION OF VikY
YALUdBLE SECRETS
FOR THE USE OF
sM)1TH$, CUTLERS, PEWTERERS, BRAZIERS, BOOK-
BINDERS, JOINERS, TURNERS, JAPANNE*S, &C.
CHOICE EXPERIMENTS ON IRONAND STEEL
To harden Sword-blades.
QWORD-BLADES are to be made tough, so as not to
0 snap or break in pushing against any thing capable of
resistance; they must also be of a keen edge; for which
purpose they must all along the middle be hardened with
oil and butter, to make them tough, and the edges with
such things as shall be prescribed hereafter, for hardening
edged instruments. This work requires not a little care
in the practice.
How to imitate the Damascan Blades.
Tkis may be done to such perfection that they cannot
bt distinguished from the real Damascaa blades. First po-
lish
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