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  2. Pantograph - Wikipedia

    en.wikipedia.org/wiki/Pantograph

    Drafting pantograph in use Pantograph used for scaling a picture. The red shape is traced and enlarged. Pantograph 3d rendering. A pantograph (from Greek παντ- 'all, every' and γραφ- 'to write', from their original use for copying writing) is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen, in tracing an image, produces identical ...

  3. Five-bar linkage - Wikipedia

    en.wikipedia.org/wiki/Five-bar_linkage

    One of the links is the ground or base. [1] This configuration is also called a pantograph, [2] [3] however, it is not to be confused with the parallelogram-copying linkage pantograph. The linkage can be a one-degree-of-freedom mechanism if two gears are attached to two links and are meshed together, forming a geared five-bar mechanism. [1]

  4. Leg mechanism - Wikipedia

    en.wikipedia.org/wiki/Leg_mechanism

    A lambda mechanism combined with a parallelogram linkage to form a translating leg that follows the coupler curve. U.S. Patent No. 6,260,862, Walking Device, J. C. Klann (2001) . The coupler curve of a four-bar linkage guides the lower link of an RR serial chain to form a leg mechanism, known as the Klann linkage .

  5. Pantograph (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Pantograph_(disambiguation)

    A pantograph is a mechanical connected linkage of a writing instrument, like a pen, such that the movement of one pen, in tracing an image, produces identical movements in a second pen. Pantograph may also refer to: Pantograph (lighting suspension), an overhead lighting system used in television and photography

  6. Educational leadership - Wikipedia

    en.wikipedia.org/wiki/Educational_leadership

    Educational leadership is the process of enlisting and guiding the talents and energies of teachers, students, and parents toward achieving common educational aims. This term is often used synonymously with school leadership in the United States and has supplanted educational management in the United Kingdom.

  7. Burmester's theory - Wikipedia

    en.wikipedia.org/wiki/Burmester's_theory

    Burmester's approach to the synthesis of a four-bar linkage can be formulated mathematically by introducing coordinate transformations [T i] = [A i, d i], i = 1, ..., 5, where [A] is a 2×2 rotation matrix and d is a 2×1 translation vector, that define task positions of a moving frame M specified by the designer.

  8. Polygraph (duplicating device) - Wikipedia

    en.wikipedia.org/wiki/Polygraph_(duplicating_device)

    A horizontal pantograph maintains identical planar (X and Y axis) movement, with two degrees of freedom; An angled pantograph descending from the bridge maintains identical vertical (Z axis) movement; A torsion beam maintains identical pen fore-and-aft tilt; A parallel linkage maintains identical pen side-to-side tilt

  9. Linkage (mechanical) - Wikipedia

    en.wikipedia.org/wiki/Linkage_(mechanical)

    Linkage mobility Locking pliers exemplify a four-bar, one degree of freedom mechanical linkage. The adjustable base pivot makes this a two degree-of-freedom five-bar linkage. It is common practice to design the linkage system so that the movement of all of the bodies are constrained to lie on parallel planes, to form what is known as a planar ...