A coupling (or a coupler) is a mechanism for connecting rolling stock in a train. The design of the coupler is standard, and is almost as important as the track gauge, since flexibility and convenience are maximised if all rolling stock can be coupled together.
A flagellate is an organism with one or more whip-like organelles called flagella. Some cells in may be flagellate, for instance the spermatozoa of most phyla. do not produce flagellate cells, but , , green algae, some gymnosperms and other closely related plants do. Likewise, most fungi do not produce cells with flagellae, but the primitive fungal do. Many take the form of single-celled flagellates.
The company was founded by John Griffin in 1975.The company operates a fleet of 4,000 vehicles with annual revenues of over £200m. As well as being a private hire operator, Addison Lee also operates a private coach company with a fleet of 100 coaches of various sizes. The company carries out over 20,000 jobs every day.
