Mechanics and Mechanism: Being Elementary Essays and Examples for the Use of Schools, Students, and ArtisansRobert Scott Burn |
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adopted aperture attached axle beam bearings belt body bolts brasses camb centre of gravity centre of motion connecting-rod continuous circular motion contrivance cottar crank cylinder diameter dictionary drawing drill driving edge edition engine English language equal fastened feet fixed fly-wheel force frame friction fulcrum given gives motion groove handle holes horizontal Illustrated London inches inclined plane iron journal lathe length lever machine machinery means metal method modification movable movement moving power parallel motion passed piece pinion piston-rod placed plate pound weight projecting pulley raise ratchet-wheel reciprocating motion resistance revolve ROBERT SCOTT rollers rope round SCOTT BURN screw shaft shewn in fig shews side simple machine slide slot space spindle steam steam-engine strap strength Suppose surface teeth threads tion tool toothed wheels turning velocity vertical Webster's Webster's Dictionary wedge weight words
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Page 4 - Webster's Dictionary of the English Language. Exhibiting the Origin, Orthography, Pronunciation, and Definition of Words ; comprising also a Synopsis of Words differently pronounced by different Orthoepists, and Walker's Key to the Classical Pronunciation of Greek, Latin, and Scripture Proper Names.
Page 1 - Relaxations from Study, consisting of POPULAR MELODIES AND ROMANCES, and Selections from the Pianoforte Compositions of the most celebrated Masters; also, a Short and Easy Introduction to Harmony or Counterpoint, and a new Vocabulary of Terms. Demy 4to, neatly bound in cloth, with Engravings and Diagrams.
Page 9 - F, the fulcrum. In other words, the power or force resting on the prop or fulcrum overcomes the weight or resistance. Thus, if the lever be under the centre of gravity of the weight, and the length of the lever from the fulcrum be twice as long as the other part, a man can raise the weight one inch for every two inches he presses down the end of the lever.
Page 15 - ... the fulcrum is at one end, the weight at the other, and the power between them.
Page 3 - Professor Webster's English Dictionary has long become a standard English work, albeit the compiler was an American. The present volume is a revised edition of that great work — for such it strictly is — published in a cheap form.
Page 9 - give me a lever long enough, and a prop strong enough, and with my own weight I will move the world.