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" MECHANICAL POWERS are certain simple instruments employed in raising greater weights, or overcoming greater resistance than could be effected by the direct application of natural strength. They are usually accounted six in number; viz. the Lever, the... "
A Course of Mathematics: For the Use of Academies, as Well as Private Tuition - Page 154
by Charles Hutton - 1831
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American Common-school Arithmetic ...

Rufus Putnam - Arithmetic - 1849
...complicated, are formed by combining a few simpler machines, commonly called the " Mechanic Powers." They are, the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. In any machine, the force or original prime mover is called thePowER. The resistance to be overcome...
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Rudimentary Dictionary of Terms Used in Architecture, Civil ..., Volumes 1-2

John Weale - Architecture - 1850 - 564 pages
...of parts which are supposed to - be perfectly rigid. The mechanical powers, sometimes described as six in number, viz. the lever, the wheel and axle,...pulley, the inclined plane, the wedge, and the screw, are reducible to two only, viz. the lever and the inclined plane, in each of which the effect produced...
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mensuration mechanical powers and machinery

1850
...simple machines, employed to facilitate the moving of weights or the overcoming of resistance. They are six in number; viz., the Lever, the Wheel and Axle,...Pulley, the Inclined Plane, the Wedge, and the Screw. In mechanical powers and in machinery, the thing to be moved, or the resistance to be overcome, is...
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Elementary Treatise on Natural Philosophy, Part 4

Augustin Privat-Deschanel - Physics - 1880 - 1069 pages
...applications of the foregoing principles; and we shall begin with the so-called " mechanical powers," namely, the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. 56. Lever. — Problems relating to the lever are usually most conveniently solved by taking moments...
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Essays on the kindergarten, a selection of lects. read before the London ...

Essays - 1881
...ILLUSTRATE THE MECHANICAL POWERS. A Box of Working Models, of the Six Simple Mechanical Powers : namely, the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw ; with Description, Experiments, and Engravings. (These models are accurately executed in wood. Size...
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Elements of Natural Philosophy: For the Use of Schools and Academies

Joseph Anthony Gillet, William James Rolfe - Physics - 1881 - 313 pages
...complicated, is made up of a very few elements, called simple machines, or mechanical powers. These are the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. The force applied to work the machine is called the power ; and the resistance overcome by the machine,...
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The Bryant and Stratton Business Arithmetic

H. Bryant - 1881
...moving at the rate of 80 ft. per second ? 777. Mechanical Powers. — 1. The mechanical powers are the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. 2. The Lever is a solid bar turning upon a pivot. 8. The pivot is called its fulcrum. 4. To find the...
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Natural Philosophy: For the Use of Schools and Academies

Joseph Anthony Gillet, William James Rolfe - Physics - 1881 - 509 pages
...person who winds the clock. G. MACHINES. simple machines, or mechanical powers. These are the /ever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. The force applied to work the machine is called the power; and the resistance overcome by the machine,...
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Intermediate Lessons in Natural Philosophy

Edwin James Houston - Physics - 1881 - 199 pages
...combinations of a number of simple machines, called the mechanical powers. The mechanical powers are the lever, the wheel and axle, the pulley, the inclined plane, the wedr/e, and the screiv. The mechanical powers are all modifications of the lever, or of the inclined...
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A course of elementary reading in science and literature, compiled by J.M. M ...

James Melville M'Culloch - 1882
...machines, which are called the mechanical powers, are six in number, and have the following names, — the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. Every one has seen men raising a stone by means of a bar of iron. This bar is a Lever. In this machine...
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