This page needs to be proofread.
TURNING A FLY-WHEEL.
prevent the belt slipping off. This wheel can be fixed on a
face-plate, or in a boxwood chuck, and bored out the same as
fly-wheel, after which it can be driven on a mandrel and the
rim turned. A key-way is also required the same as in the
fly-wheel. The mandrel on which the wheel is turned ought
to be very short, and the wheel fixed on it as near the back
centre as it can be, to prevent the chattering that is inevitable
on turning heavy things on long mandrels.
The smaller work belonging to this engine will be dealt with in the next chapter.
10
