Scott-Russell Straight Line Motion
Product Code : JA-PLE-4190
The Scott-Russell Straight Line Motion (SKU JA-PLE-4190) is a working model of a standard mechanism that makes a point move in an exact straight line using only two links, one fixed pivot and one slider. It is built on an A3 board so a class can follow the motion and trace it. This Scott-Russell straight line mechanism model is one of a series of sixteen board-mounted mechanisms used in theory of machines, kinematics and engineering drawing teaching.
Specifications
The longer link AB has a pivot at its mid-point D to which the shorter link CD is connected; because CD = BD = AD, as B slides towards C the point A is forced to travel in a straight line.
| Product | Scott-Russell Straight Line Motion |
| SKU | JA-PLE-4190 |
| Mechanism | Scott-Russell, standard mechanism for generating a straight line |
| Links | Two links with one fixed pivot and one slider |
| Geometry | Shorter link joined at the mid-point of the longer link AB; CD = BD = AD |
| Output | Point A travels in a straight line as B moves towards C |
| Board | A3 size, white melamine |
| Moving parts | Amber-coloured Perspex, pivoted with hollow rivets |
| Locus recording | Hollow rivets accept a pencil to transfer loci to paper clipped to the board |
Applications of the Scott-Russell straight line mechanism model
The model lets students confirm by tracing that point A really moves in a straight line, and then use the equal-length geometry CD = BD = AD to prove why, which makes it a clear introduction to straight-line linkages.
- Tracing the straight-line path of point A as the slider moves
- Proving the straight-line property from the geometry CD = BD = AD
- Plotting the loci of other points on the links for comparison
- Comparing exact and approximate straight-line mechanisms such as the Peaucellier and James Watt linkages
- Theory of machines, kinematics and engineering drawing classes in polytechnics, TVET institutes and colleges
Scope of supply and ordering
The listing covers the Scott-Russell straight line mechanism on its A3 melamine board. The stand, board clips and collet pencil are listed as a separate item.
Frequently asked questions
How does the Scott-Russell mechanism produce a straight line?
The shorter link joins the mid-point of the longer link AB, so CD = BD = AD, and as B moves towards C the point A must travel in a straight line.
How many links does it use?
Two links, with one fixed pivot and one slider.
Related products
- Peaucellier Straight Line Motion
- James Watt Straight Line Motion
- Thompson Indicator Straight Line Motion
- Elliptic Trammel
More straight-line and quick-return mechanisms are listed in Physics Lab Equipments from JaincoLab, a physics lab equipment manufacturer in India.
Request a quote
To order the Scott-Russell Straight Line Motion model, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Buying under a laboratory tender? Use our tenders page.
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