 A rule, though not absolutely perfect, is better in all cases than to have no guide whatever. "And it is too evident to require proof, that it is essential to the beauty and utility of any machine, that the strength and bulk of its several parts be duly...  Practical Essays on Mill Work and Other Machinery - Page 136by Robertson Buchanan - 1823 - 588 pagesFull view - About this book
 | Oliver Evans - Flour mills - 1848 - 594 pages
...that it is no easy task to form any general rule with regard to the pitches and breadths of £he teetk of wheels. I do not pretend to more than a mere approximation...may be subject. "Some general observations on the wheel-work of mills, will serve greatly to simplify our inquiries on the subject. 32 " General Observations... | |
 | Oliver Evans - Flour mills - 1860 - 460 pages
...Practical Inquiry respecting the /Strength and Durability of the Teeth of Wheels used in Mill-work. "Having treated of the forms of the teeth of wheels,...stress or wear to which the parts may be subject. " General Observations on the Wlieel-work of Mills." " Mistaken attempts at economy have often prompted... | |
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