However at high speed great force was needed to lower the flaps and so a geared crank handle was used.
22.
To operate the step switches the locomotive driver had to turn a vertical crank handle, later changed to a horizontal controller.
23.
The aircraft's retractable Conventional landing gear undercarriage was manually operated, requiring 144 turns of a crank handle situated by the pilot's seat.
24.
In 1921 the drive of Bad Schandau Elevator were changed to three-phase alternating current, a crank handle was left for the emergency operation.
25.
CAPTION : To keep jalousies working properly lubricate the crank handle, the pivot points on each glass slat and all other moving parts.
26.
Astronauts insert a crank handle into the hub and rotate it to move cams and latches on the back side of the door.
27.
The Benedictine monk Theophilus Presbyter ( c . 1070 " 1125 ) described crank handles " used in the turning of casting cores ".
28.
To reload the weapon, the crank handle could be unscrewed completely to remove the cylinder, which could then be replaced with a fresh one.
29.
The naked foot rests upon an iron skate that is slowly driven forward by a stout heel plate operated by a large crank handle.
30.
This was used to prime the engine while cranking the engine slowly; then the engine was started with a rapid pull of the crank handle.
