 | Charles Hutton - 1822 - 680 σελίδες
...could be effected by the natural strength without them. These are usually accounted six in number, viz. the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. THE LEVER. 16S 158 Mechanics, is the science of forces, and the effects they... | |
 | William Jillard Hort - 1822 - 308 σελίδες
...POWERS.' The simple machines, or mechanical powers, arc usually accounted to be the six following : — the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. A lever is an inflexible bar, or rod, moving freely round a point, called its... | |
 | Peter Nicholson - 1825 - 1046 σελίδες
...of which, all machines, however complicated, are constructed. These powers are six in number, viz. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. Before we enter upon a particular description of these instruments and the calculation... | |
 | Jeremiah Joyce - 1825 - 310 σελίδες
...were in vain to expect you to comprehend the principles of mechanics. There are six mechanical powers. The lever; the wheel and axle ; the pulley ; the inclined plane; the wedge; and the screw. Emma. Why are they called mechanical powers ? Father. Because, by their means... | |
 | John Nicholson - 1825 - 822 σελίδες
...its origin solely to this cause. OF THE MECHANICAL POWERS. THE mechanical powers are six in number, the LEVER, the WHEEL and AXLE, the PULLEY, the INCLINED PLANE, the WEDGE, and the SCREW. A perfect knowledge and thorough appreciation of which should be clearly understood... | |
 | Olinthus Gregory - 1826 - 604 σελίδες
...combined powers are estimated they must be divided in the investigation ; these are in number six, viz. the lever, the wheel and axle, the pulley, the inclined plane, the screw, and the wedge. These are most commonly known by the name of the mechanical powers. In all these the mechanical advantage... | |
 | Thomas Dick - 1826 - 414 σελίδες
...machines, the principles on which their energy depends ; the properties of the mechanical powers — the lever, the wheel and axle, the pulley, the inclined plane, the wedge and the screw — and the effects resulting from their various combinations. From the investigations... | |
 | Luke Herbert - 1829 - 394 σελίδες
...iNTUODtTCTIOy. THE elements of machinery are, by writers on mechanics, generally itivided into six kinds ; viz. the lever, the wheel and axle, the pulley, the inclined plane, the screw, and the wedge. There seems, however, to be one or two other ways of generating mechanical efficacy, but they are very... | |
 | Jeremiah Joyce - 1829 - 278 σελίδες
...were in vain to expect you to comprehend the principles of mechanics. There are six mechanical powers. The lever ; the wheel and axle ; the pulley ; the inclined plane ; the wedge; and the screw. Emma. Why are they called mechanical powers? ,« Father. Because, by their means... | |
 | 1829 - 460 σελίδες
...Former Annuals, contains, by Tables and Easy Rules, free from Algebraic Formula:, the Calculations of the Lever, the Wheel and Axle, the Pulley, the inclined Plane, the Wedge and the Screw, the Gravitating Property of Bodies, the Centres of Gravity, Gyration, and Percussion,... | |
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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. 
