 | James Hann, Isaac Dodds - 1833 - 234 pages
...great resistance, by a small force. The mechanical powers are usually accounted six in number, viz. the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. i THE LEVEE. 35.- A Lever is an inflexible rod, moveable about a certtre of motion,... | |
 | John Radford Young - 1834 - 302 pages
...parts of all machinery are called the mechanical powers. These are six in number, and are as follow : the Lever, the Wheel and axle, the Pulley, the Inclined Plane, the Screw, and the Wedge. The Lever (75.) A lever is a rigid bar or rod, moveable about a fixed point or fulcrum, and it is divided... | |
 | Olinthus Gregory - 1834 - 484 pages
...are often employed separately, are called Mechanical Powers. Z. Of these we usually reckon six : viz. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. To these, however, is sometimes added the funicular machine, being that which... | |
 | Frederick Emerson - 1834 - 300 pages
...effected by the direct application of natural strength. They are usually accounted six in number; viz. the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. The advantage gained by the use of the mechanical powers, does not consist in... | |
 | George Combe - 1834 - 144 pages
...bodies. Cohesive attraction. Capillary attraction. Gravitation. Laws of motion. Mechanical powers. The lever. The wheel and axle. The pulley. The inclined plane. The wedge. The screw. Mechanical properties of fluids. Specific gravity. Mechanical properties of air.... | |
 | sir Richard Phillips - 1835 - 608 pages
...in the driven wheels. The Mechanical Powers may be reduced to three ; but they are usually eipreased as six, the lever, the wheel and axle, the pulley,...continued combination the power is twice the number of pullies, less 1 . la levers, the power is reciprocally as the leng-ths on each side the fulcrum or... | |
 | John Bonnycastle - 1835 - 308 pages
...applications to increase force and overcome resistance. They are usually accounted six in number, viz. The Lever —The Wheel and Axle— The Pulley— The Inclined Plane — The Wedge — and the Screw. LEVER. To make the principle easily understood, we must suppose the lever... | |
 | Luke Hebert - 1835 - 938 pages
...construction of the various parts of machinery : they are usually considered to be six in number ; viz. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. It may be easily shewn, however, that these are capable of being reduced to greater... | |
 | 1835 - 208 pages
...weight, or resistance, to another. Q. How many Mechanic powers are there ? There are six Mechanic powers: the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. Q. Please, to describe each. A. The lever is an inflexible bar, turning on a... | |
 | William Grier - 1836 - 384 pages
...the other. 2. The simple machines, or those of which all others are constructed, are usually reckoned six : the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. To these the funicular machine is sometimes added. 3. The weight signifies the... | |
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These are usually accounted six in number, viz. the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. 
