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The pantograph was an improvement on the simple trolley pole, which prevailed up to that time, primarily because the pantograph allows an electric-rail vehicle to travel at much higher speeds without losing contact with the overhead lines, e.g. due to dewirement of the trolley pole.
Railroads, bridges, viaducts, dams (black lines, railroads with cross-hatching) Power transmission lines (may also be an obstacle in some areas) (solid lines between tower symbols) Aerial cables (dashed line between black boxes) Outdoor facilities such as stadiums, schools, golf courses, etc. (black box)
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 ...
English: Flag commonly associated with Blue Lives Matter, but does not represent BLM. The flag is a version of the American flag in white, black, and blue . Date
In security printing, void pantograph refers to a method of making copy-evident and tamper-resistant patterns in the background of a document. Normally these are invisible to the eye, but become obvious when the document is photocopied.
The five major colors of European heraldry (black, red, green, blue, and purple) are sorted next. Miscellaneous colors (murrey, tan, grey, and pink) are sorted last. Similar colors are grouped together to make navigation of this list practical.
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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.