What is the pantograph used for?
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What is the pantograph used for?
Pantographs are used for reducing or enlarging engineering drawings and maps and for guiding cutting tools over complex paths. Artists specializing in miniatures use pantographs to achieve greater detail.
Why pantograph is used in trains?
In the power supply system of an electrified railway, a pantograph in contact with the overhead train line is used to send electricity to the main transformer of the electric train, thus providing power.
What material is used in pantograph?
Pantograph strips are often made of steel, copper alloy, pure carbon, and metal-impregnated carbon, which have different principles of interaction with the contact wire. Carbon strips have smooth surfaces and no rough part that may abrade the contact wire.
What are the components of pantograph?
Pantographs are a special devices mounted on electric trains to collect current from one or several contact wires. They consist of a pantograph head, frame, base, and drive system, and their geometrical shape is variable.
Why is it called a pantograph?
The pantograph is a common type of current collector; typically, a single or double wire is used, with the return current running through the rails. The term stems from the resemblance of some styles to the mechanical pantographs used for copying handwriting and drawings.
What is a pantograph made of?
Pantograph strips are often made of steel, copper alloy, pure carbon, and metal-impregnated carbon, which have different principles of interaction with the contact wire.
What are the advantages of pantograph?
This is because, the pantograph mechanism possesses the following advantages decoupled kinematics, higher energy efficiency, good rigidity, less link inertia and compact drive systems.
What is pantograph mechanism?
A pantograph (Greek roots 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 movements in a second pen.
How does a pantograph work geometry?
The pantograph works by connecting one arm of the pantograph to a pointer and another section of the pantograph contains a drawing implement. Scale is increased or decreased by adjusting the arms and thereby the relationship of the linkage between the pointer and the drawing implement.
What are pantographs made of?
How many links are in pantograph?
four links
It consists of four links joined in such a way to form a parallelogram ABCD in which AB = CD and AD = BC. In the figure, OAE always remains in a straight line. Pantograph consists of four turning pair.
How does a pantograph work and how is it able to produce an enlarged image?
It’s based on parallelograms so that when moving one specified point, called the tracing stylus, along the outline of an image, an enlarged or reduced version of the image is created by the movement of another point, called the drawing stylus, which has a lead affixed to it.
