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  2. Mechanical advantage device - Wikipedia

    en.wikipedia.org/wiki/Mechanical_advantage_device

    Examples of rope and pulley systems illustrating mechanical advantage. Consider lifting a weight with rope and pulleys. A rope looped through a pulley attached to a fixed spot, e.g. a barn roof rafter, and attached to the weight is called a single pulley. It has a mechanical advantage (MA) = 1 (assuming frictionless bearings in the pulley ...

  3. Mechanical engineering - Wikipedia

    en.wikipedia.org/wiki/Mechanical_engineering

    Various machine components used in mechanical engineering. Mechanical engineering is the study of physical machines that may involve force and movement. It is an engineering branch that combines engineering physics and mathematics principles with materials science, to design, analyze, manufacture, and maintain mechanical systems. [1]

  4. Simple machine - Wikipedia

    en.wikipedia.org/wiki/Simple_machine

    The ratio of the output to the applied force is called the mechanical advantage. Simple machines can be regarded as the elementary "building blocks" of which all more complicated machines (sometimes called "compound machines" [6] [7]) are composed. [2] [8] For example, wheels, levers, and pulleys are all used in the mechanism of a bicycle.

  5. Cam (mechanism) - Wikipedia

    en.wikipedia.org/wiki/Cam_(mechanism)

    A common example is the traditional sash window lock, where the cam is mounted to the top of the lower sash, and the follower is the hook on the upper sash. In this application, the cam is used to provide a mechanical advantage in forcing the window shut, and also provides a self-locking action, like some worm gears, due to friction.

  6. Screw mechanism - Wikipedia

    en.wikipedia.org/wiki/Screw_mechanism

    The lead determines the mechanical advantage of the screw; the smaller the lead, the higher the mechanical advantage. [20] The pitch is defined as the axial distance between the crests of adjacent threads. In most screws, called "single start" screws, which have a single helical thread wrapped around them, the lead and pitch are equal.

  7. Category:Mechanisms (engineering) - Wikipedia

    en.wikipedia.org/wiki/Category:Mechanisms...

    Mechanisms are mechanical devices designed to transform forces and movement into a desired set of output forces and movement. Subcategories This category has the following 25 subcategories, out of 25 total.

  8. Engine - Wikipedia

    en.wikipedia.org/wiki/Engine

    In some engineering jargons, the two words have different meanings, in which engine is a device that burns or otherwise consumes fuel, changing its chemical composition, and a motor is a device driven by electricity, air, or hydraulic pressure, which does not change the chemical composition of its energy source.

  9. Mechanical toy - Wikipedia

    en.wikipedia.org/wiki/Mechanical_toy

    The types of mechanical energy used to power mechanical toys include rubber bands, springs, and flywheels.. Mechanical toys use 4 types of different movements, rotary (going around in a circle), linear (moving in a straight line then stopping), reciprocating (moving backwards and forwards continuously in a straight line) and oscillating (moving backwards and forwards in a curve).