 | Mathematics - 1836 - 488 pages
...LEVER. The simple mechanical powers are six in number ; viz. 1. The lever ; 2. the wheel and axis ; 3. the pulley; 4. the inclined plane ; 5. the screw;...formed from the combination of two or more simple ones. The lever is an inflexible bar or rod, some point of which being supported, the rod itself is moveable... | |
 | Denison Olmsted - Physics - 1838 - 376 pages
...commonly called the MECHANICAL POWERS, are six in number; viz. 1. The Lever; 2. The Wheel and Axle; 3. The Pulley; 4. The Inclined Plane; 5. The Screw; 6. The Wedge. In philosophical strictness, the number of simple machines may be reduced to three; viz. the lever,... | |
 | Denison Olmsted - Physics - 1844 - 618 pages
...commonly called the MECHANICAL POWERS, are six in number; viz. 1. The Lever; 2. The Wheel and Axle ; 3. The Pulley ; 4. The Inclined Plane ; 5. The Screw; 6. The Wedge. In philosophical strictness, the number of simple machines may be reduced to three ; viz. the lever,... | |
 | Alonzo Gray - Physics - 1850 - 422 pages
...force. All machines, whatever their form, may be reduced to six : 1. The Lever. 2. The Wheel and Axle. 3. The Pulley. 4. The Inclined Plane. 5. The Screw. 6. The Wedge. These may be further reduced to two elementary principles, for the wheel and axle, and the pulley,... | |
 | Denison Olmsted - Physics - 1858 - 612 pages
...mathematical demonstration, is very analogous to that of a body sustained between two inclined planes. Compound machines are formed from the combination of two or more simple ones. Bat it is not the object of this treatise to enter upon a full description of the nature and use of... | |
 | Elias Loomis - Physics - 1858 - 374 pages
...Simple machines have generally been divided into six classes : 1. The Lever. 2. The Wheel and Axle. 3. The Pulley. 4. The Inclined Plane. 5. The Screw. 6. The Wedge. 84. THE LEVER. A lever is an inflexible bar, supported on a point, about which it moves freely. The... | |
 | James Hamblin Smith - Statics - 1868 - 102 pages
...what are called The Simple Machines, or Mechanical Powers, are 1. The Lever. 2. The Wheel and Axle. 3. The Pulley. 4. The Inclined Plane. 5. The Screw. 6. The Wedge. THE LEVER. 2. A rigid rod capable of turning round a fixed point in the rod is called a Lever. The... | |
 | James Hamblin Smith - Statics - 1871 - 148 pages
...what are called The Simple Machines, or Mechanical Powers, are 1. The Lever. 2. The Wheel and Axle. 3. The Pulley. 4. The Inclined Plane. 5. The Screw. 6. The "Wedge. 84. THE LEVER. We have already defined a Lever as a rigid rod, capable of turning round a fixed point... | |
 | Nehemiah Hawkins - Steam engineering - 1901 - 354 pages
...are commonly called MECHANICAL POWEKS, are six in number; viz. : 1. The lever. 2. The wheel and axle. 3. The pulley. 4. The inclined plane. 5. The screw. 6. The wedge. These can in turn be reduced to three classes: I. A solid body turning on an axis. II. A flexible cord.... | |
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The simple machines, or what are commonly called the MECHANICAL POWERS, are six in number; viz. 1. The Lever; 2. The Wheel and Axle; 3. The Pulley; 4. The Inclined Plane; 5. The Screw; 6. The Wedge. 
