CAT NO: DIDACTICNLE-Export-067007
Whitworth- Engineering Lab Training Systems.
Whitworth - Engineering Lab Training Systems
One of sixteen mechanisms built on an A3 board equally suitable for
the classroom, drawing office or laboratory. The principal components
are made from amber coloured Perspex, pivoted with hollow rivets, and
mounted on a white melamine board for contrast and visibility. To see
the mechanisms move is far more instructive and convincing than
listening to a static lecture. The hollow rivets accept a pencil for
transferring the loci of the joints to a sheet of paper, clipped to the
board.
The Whitworth mechanism has a fixed ratio of cutting to
return stroke because of the fixed distance OP. The crank has a pin C
which can be set at a chosen radius to drive the slotted link thus
varying the stroke. The tool is attached to the guided slider A.