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  3. This mechanism is called as Watt’s straight line mechanism or simply Watt’s Linkage. Watt’s linkage is a simple four bar mechanism of double-rocker type with the two rockers connected through a coupler. When the two rockers move the mid-point of the coupler moves in an almost straight line path for the motion close to coupler’s mean position.
    www.brighthubengineering.com/machine-design/10…
    The Watts Linkage mechanism creates nearly straight line motion using pivot links. The small square in the diagram follows a nearly vertical path as the links rotate. This mechanism can be used to constrain motion to a linear path without the need for rails or rods to slide on.
    www.emachineshop.com/watts-linkage/
    Straight-line motion is linear motion of definite length or "stroke", every forward stroke being followed by a return stroke, giving reciprocating motion. The first such mechanism, patented in 1784 by James Watt, produced approximate straight-line motion, referred to by Watt as parallel motion.
    en.wikipedia.org/wiki/Straight-line_mechanism
    James Watt, a mathematical instrument maker at the University of Glasgow, devised this linkage to support the piston rod of his beam steam engine (about 1769). Straight line mechanisms were a key technology to the development of steam power before the advent of methods and materials for production of crossheads and their slides.
    brockeng.com/mechanism/Watt.htm
     
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    What is Watt's straight line mechanism?This mechanism is called as Watt’s straight line mechanism or simply Watt’s Linkage. Watt’s linkage is a simple four bar mechanism of double-rocker type with the two rockers connected through a coupler. When the two rockers move the mid-point of the coupler moves in an almost straight line path for the motion close to coupler’s mean position.
    Who invented a straight line mechanism?After the invention of steam engine and straight line mechanism by Watt a range of straight line mechanisms were designed. Chebyshev’s mechanism is the first mechanism to be designed after Watt’s linkage by a Russian Mathematician Pafnuty Chebyshev. This mechanism was invariable used for linear guidance of the piston and valves.
    What is a straight line mechanism?These approximate straight line mechanisms has important applications in machine design. These mechanisms were used extensively in classical machines such as steam engines. Perfect straight lines can also be generated using linkage mechanisms but those are relatively complex mechanisms. There are two classes of straight line mechanisms:
    What is straight line motion?Straight-line motion is linear motion of definite length or "stroke", every forward stroke being followed by a return stroke, giving reciprocating motion. The first such mechanism, patented in 1784 by James Watt, produced approximate straight-line motion, referred to by Watt as parallel motion .
     
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    A straight-line mechanism is a mechanism that converts any type of rotary or angular motion to perfect or near-perfect straight-line motion, or vice versa. Straight-line motion is linear motion of definite length or "stroke", every forward stroke being followed by a return stroke, giving reciprocating motion. … See more

    In the late eighteenth century, before the development of the planer and the milling machine, it was extremely difficult to machine straight, flat surfaces. During that era, much thought … See more

    Approximate straight line linkages
    Parts/links of the same color are the same dimensions.
    • Watt's … See more

    Approximate straight line linkages
    These mechanisms often utilize four bar linkages as they require very few pieces. These four-bar linkages have coupler curves See more

    Cornell university (archived) - Straight-line mechanism models
    Alfred Kempe (1877). How to Draw a Straight Line (PDF). Macmillan – … See more

     
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  6. WEBFeb 16, 2013 · Generation of straight line motion using linkage mechanisms has always been a common requirement in machine design practice. Although exact straight line can...

  7. WEBApr 11, 2020 · 7 subscribers. Subscribed. 2. 100 views 3 years ago. The midpoint of the connecting link traces a figure eight pattern over the full mechanism excursion, but a straight line is traced in part...

  8. WEBThe straight line mechanism developed by James Watt, to guide the piston of steam engines through a straight line path, is considered to be as the best and simplest mechanism able to generate close to straight line …

  9. Watt's Linkage - Brock Eng

  10. WEBChebyshev’s mechanism is the first mechanism to be designed after Watt’s linkage by a Russian Mathematician Pafnuty Chebyshev. This mechanism was invariable used for linear guidance of the piston and …

  11. Exact Straight Line Mechanisms - Peaucellier linkage …

    WEBScott-Russell Exact Straight Line Mechanism. The complexity of the mechanisms to generate exact straight lines can be reduced by introduction of one or more slider crank linkages. It is possible to generate an exact …

  12. Optimization of Watt's Six-Bar Linkage to Generate Straight and ...

  13. Design of a Watt Mechanism with Crossed Axes | SpringerLink

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