It is likely that the hand-operated shaduf was the only mechanical assistance available, capable of watering only small plots of land.
A similar arrangement might be investigated for users of a hand-operated joystick.
For instance, we have the case of an abrasive wheel, a hand-operated grindstone, which burst, which is a well-known risk, something which is foreseeable.
The other five women were assembling bicycle stands by hand; this also included spells of working a hand-operated rivetting machine.
There are many people who do not realise that a hand-operated fly press can do as much damage as a power-operated press.
One can turn a hand-operated sewing machine into an electrically-driven sewing machine by fixing a final drive, which can be produced separately.
The poor, hard-working working-class woman will have to pay more for her hand-operated wringer.
The maroons and hand-operated sirens, required as additional warning instruments, are going into production this year.
