Cammell & Co., of Sheffield.The same tire mills have been made for the Lowmoor IronCompany ; the Bowling Iron Company ; Messrs. Taylor Broth-ers, of Leeds; Messrs. Hood and Cooper, of Leeds; the Farn-ley Iron Company, etc.—Engineering, SOUTHGATES IMPEOVED EET. It is well known to machine… … and not on its top or bottom. In the latter circumstance thecase would be simply a wedge tending to split the hub it wasto secure. Of course the action of the key should be princi-pally on its sides. In the engraving we have a key having four equal sides,the key so seated as to present two sides to…
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