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  2. Pantographic knife - Wikipedia

    en.wikipedia.org/wiki/Pantographic_knife

    The manner is similar to a butterfly knife (also called a Balisong knife after its modern place of origin)—with which it is often confused. Unlike the balisong knife handles that swing freely and independently, the pantographic knife uses a pantograph linkage to keep the handles aligned during opening and closing. The mechanism includes a ...

  3. 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 ...

  4. Cattaraugus Cutlery Company - Wikipedia

    en.wikipedia.org/wiki/Cattaraugus_Cutlery_Company

    The Champlins expanded into knife production, and along with William R. Case and his brothers, they formed Cattaraugus Cutlery in 1886, based in Little Valley. The company hired expert cutlers from Germany, England, and other U.S. manufacturers, to produce high quality cutlery, and purchased knife-making equipment from the defunct Beaver Falls ...

  5. Pantograph (transport) - Wikipedia

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

    The diamond-shaped, electric-rod pantograph of the Swiss cogwheel locomotive of the Schynige Platte railway in Schynige Platte, built in 1911 Cross-arm pantograph of a Toshiba EMU. A pantograph (or "pan" or "panto") is an apparatus mounted on the roof of an electric train, tram or electric bus [1] to collect power through contact with an ...

  6. Brecknell Willis - Wikipedia

    en.wikipedia.org/wiki/Brecknell_Willis

    The Brecknell Willis Low Height pantograph is one of the four standard devices in use on British railway locomotives and multiple units and is a development of the standard Brecknell Willis High Speed pantograph. The Low Height pantograph is suitable for speeds up to 160 kilometres per hour (99 mph).

  7. Pencil sharpener - Wikipedia

    en.wikipedia.org/wiki/Pencil_sharpener

    The development of pencil sharpeners began in France when a French book from 1822 reported in detail about an invention of Mr. C. A. Boucher (Paris) for the construction of a pencil sharpener. He was working with pantographs and apparently needed a device to precisely sharpen the pencils.

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  9. Physiognotrace - Wikipedia

    en.wikipedia.org/wiki/Physiognotrace

    A pantograph connected to a pencil produced within a few minutes a "grand trait", a contour line on a piece of paper. With the help of a second scaling-down pantograph, the basic features of the portrait were transferred from the sheet in the form of dotted lines to a copper plate, which had previously been prepared with a ground for etching.

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