Light flashed, the mechanism whirred, and a totally blank page fell into the hopper.

Its light flashed, the mechanism whirred, and a good copy came out.

The great doors to the ballroom had slammed shut, seemingly of their own accord, and the clockwork mechanisms within were whirring and clicking, People battered at them uselessly.

She could hear mechanisms whir within the structure.

Her mechanism whirred, and stilled.

The heavy mechanism whirred, the hammer smacked home.

To her relief, the mechanism whirred again and another small door opened in the wall opposite.

Within, mechanisms whirred in counterpoint to the dancing figures below as if the clock was propelling them, which, in a metaphorical sense, it was.

The mechanism whirred softly and a brightness appeared in the air above the platform.

The card was accepted, 'read' and given back; mechanisms whirred and the door opened with a click.