The carriage is provided with strong oak buffers, planks, and spring buffers; the drawbars also have helical compression springs of the usual type.

These latter turn horizontally on a central pivot attached to the jaw end of the drawbar.

The cross catch bars adjust themselves to the direction of the line of pull in the drawbar.

The cranking of the drawbar allows for the deflection of the buffer springs.

A shackle and links hang from the end of the drawbar for attachment to ordinary wagons.