KNIFE SECRETS.

Auckland Star, Volume LIII, Issue 3, 5 January 1922, Page 5

KNIFE SECRETS.

The finest knives in the world are mud" in r-hetne!,!. Have you ever; ; noticed a dirty-looking patch on the! \ blade of a trfble knife near the handle; I end. a- though someone had placed a I thumb on it before the steel was quite i «olidv i i 'J lie prc.-encc of this mark is a good) I lest iha" the knife i- of the bci-t pos-1 i slide .jiiality. because it is only on | knife- made of th" famous "shear". ' .led i "-i.it ii U found. ; "r-hear" sicel originated in Sheffield , | centuries a.g... ami was -n called He-j j cause of the great demand for it for' 1 tailor:-.' .-hears or seis>ord. It is made | [from Swedish bar-iron, which is the j [purest in the world, by processes sol I expensive that only the cutting parti of the knife is made from it. j 1 The tang which is secured to the i handie, and the shoulder at the end of j i ihe blade, are of a cheaper steel welded j I en: hence the patch. | This method gives the finest cutting! ( knife in the world at a competitive j price. I Other countries tried in vain to make l a knife which would keep its rutting j edge like n Sheffield '".shear"' steri knife.' I he*, u-ed ihe same materials, hut failed lo get the result- .!• -ire.], a:;,! »v' ihe superiority was ani-ritied in • .:ii'secret i.i l'.\- hardening of (he Made. >oni-' ,;!c( i" explanations, -ome of j them true, were given. -n> ii a.- tlie uj-c of Derbyshire water, of mixtures pf. chemical, in tile water, and hardcningi ill pigs' blood. Bill the secret remains[ a secret to-day. j "Shear" t-teel. it may lie mentioned.; contains a small i|uantitv of slag c-ra-he hie I ill it. but, whether this has anything to do with the fine edge i.= not! known. 'Daily Mail."