Let’s take a closer look at how a cam mechanism works. A cam mechanism is made up of three main parts: a cam, a follower and a slide. Cams can be different shapes. This one is shaped like a ...

In 1883 Karl Otto Büttner, a mechanical engineer from Dresden, Germany, patented (together with Carl Gustav Th. Heyde) his first calculating machine (German patent №DE26640). The dimensions of ...

When the cam rotates against the follower, a segment is flipped up from the horizontal rest position to the vertical display position. A carryover mechanism connects two adjacent displays so that ...