| Charles Hutton - 1822 - 680 pages
...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 pages
...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... | |
| John Nicholson - 1825 - 822 pages
...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... | |
| Peter Nicholson - 1825 - 1046 pages
...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 pages
...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... | |
| Olinthus Gregory - 1826 - 604 pages
...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 pages
...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 pages
...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 pages
...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... | |
| Luke Hebert - 1829 - 392 pages
...Tn» elttnonts of machinery are, by writers on mechanics, generally tiivVded into six fcintU ; viz. the lever, the wheel and axle, the pulley, the inclined plane, the screvr, and the wedge. There seems, however, to be one or two other ways of generating mechanical efficacy,... | |
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